diff options
| author | Karl Berry <karl@freefriends.org> | 2005-12-28 00:07:27 +0000 |
|---|---|---|
| committer | Karl Berry <karl@freefriends.org> | 2005-12-28 00:07:27 +0000 |
| commit | 30dd9f517c9c093ff3319061647a4555264f7914 (patch) | |
| tree | 0d7a349bf99be5a42cc9c5a80a30f3b7136c4ccd /Master/xemtex/doc/ghostscript/History3.htm | |
| parent | 08ab8dce83f53b0f915cb66a37bbc8478b22c307 (diff) | |
trunk
git-svn-id: svn://tug.org/texlive/trunk@9 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Master/xemtex/doc/ghostscript/History3.htm')
| -rw-r--r-- | Master/xemtex/doc/ghostscript/History3.htm | 8597 |
1 files changed, 8597 insertions, 0 deletions
diff --git a/Master/xemtex/doc/ghostscript/History3.htm b/Master/xemtex/doc/ghostscript/History3.htm new file mode 100644 index 00000000000..88fdbb934a1 --- /dev/null +++ b/Master/xemtex/doc/ghostscript/History3.htm @@ -0,0 +1,8597 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> +<html> +<head> +<title>History of Ghostscript versions 3.n</title> +<!-- $Id: History3.htm,v 1.13.2.11.2.6 2003/05/17 14:38:59 giles Exp $ --> +<!-- Originally: history3.txt --> +<!-- + WARNING: do not use Pete Kaiser's emacs function "gs-toc" alone to + re-create the table of contents here, because it will replace the + hand-edited TOC subheads with a separate subhead for each H2 in + the body of the file. Or if you do, first look at the original + TOC to see how to edit it for visual conciseness. +--> +<link rel="stylesheet" type="text/css" href="gs.css" title="Ghostscript Style"> +</head> + +<body> +<!-- [1.0 begin visible header] ============================================ --> + +<!-- [1.1 begin headline] ================================================== --> + +<h1>History of Ghostscript versions 3.n</h1> + +<!-- [1.1 end headline] ==================================================== --> + +<!-- [1.2 begin table of contents] ========================================= --> + +<h2>Table of contents</h2> + +<blockquote><ul> +<li><a href="#Version3.70p1">Version 3.70 patch 1 (6/24/96)</a> +<ul> +<li><a href="#V3.70p1_Procedures">Procedures</a>, + <a href="#V3.70p1_Drivers">Drivers</a> +</ul> +<li><a href="#Version3.70">Version 3.70 (limited) (6/23/96)</a> +<ul> +<li><a href="#V3.70_Documentation">Documentation</a>, + <a href="#V3.70_Procedures">Procedures</a>, + <a href="#V3.70_Drivers">Drivers</a>, + <a href="#V3.70_Platforms">Platforms</a>, + <a href="#V3.70_Fonts">Fonts</a>, + <a href="#V3.70_Interpreter">Interpreter</a>, + <a href="#V3.70_Interpreter_PDF">Interpreter (PDF)</a>, + <a href="#V3.70_Streams">Streams</a>, + <a href="#V3.70_Library">Library</a> +</ul> +<li><a href="#Version3.69">Version 3.69 (limited) (6/14/96)</a> +<ul> +<li><a href="#V3.69_Documentation">Documentation</a>, + <a href="#V3.69_Procedures">Procedures</a>, + <a href="#V3.69_Utilities">Utilities</a>, + <a href="#V3.69_Drivers">Drivers</a>, + <a href="#V3.69_Platforms">Platforms</a>, + <a href="#V3.69_Fonts">Fonts</a>, + <a href="#V3.69_Interpreter">Interpreter</a>, + <a href="#V3.69_Library">Library</a> +</ul> +<li><a href="#Version3.68p4">Version 3.68 patch 4 (5/23/96)</a> +<ul> +<li><a href="#V3.68p4_Documentation">Documentation</a>, + <a href="#V3.68p4_Procedures">Procedures</a>, + <a href="#V3.68p4_Drivers">Drivers</a>, + <a href="#V3.68p4_Platforms">Platforms</a>, + <a href="#V3.68p4_Fonts">Fonts</a>, + <a href="#V3.68p4_Interpreter">Interpreter</a>, + <a href="#V3.68p4_Library">Library</a> +</ul> +<li><a href="#Version3.68p3">Version 3.68 patch 3 (5/17/96)</a> +<ul> +<li><a href="#V3.68p3_Procedures">Procedures</a>, + <a href="#V3.68p3_Utilities">Utilities</a>, + <a href="#V3.68p3_Drivers">Drivers</a>, + <a href="#V3.68p3_Platforms">Platforms</a>, + <a href="#V3.68p3_Interpreter">Interpreter</a>, + <a href="#V3.68p3_Library">Library</a> +</ul> +<li><a href="#Version3.68p2">Version 3.68 patch 2 (5/13/96)</a> +<ul> +<li><a href="#V3.68p2_Documentation">Documentation</a>, + <a href="#V3.68p2_Procedures">Procedures</a>, + <a href="#V3.68p2_Drivers">Drivers</a>, + <a href="#V3.68p2_Interpreter">Interpreter</a>, + <a href="#V3.68p2_Streams">Streams</a>, + <a href="#V3.68p2_Library">Library</a> +</ul> +<li><a href="#Version3.68p1">Version 3.68 patch 1 (5/10/96)</a> +<ul> +<li><a href="#V3.68p1_Procedures">Procedures</a> +</ul> +<li><a href="#Version3.68">Version 3.68 (limited) (5/9/96)</a> +<ul> +<li><a href="#V3.68_Documentation">Documentation</a>, + <a href="#V3.68_Procedures">Procedures</a>, + <a href="#V3.68_Utilities">Utilities</a>, + <a href="#V3.68_Drivers">Drivers</a>, + <a href="#V3.68_Platforms">Platforms</a>, + <a href="#V3.68_Fonts">Fonts</a>, + <a href="#V3.68_Interpreter">Interpreter</a>, + <a href="#V3.68_Streams">Streams</a>, + <a href="#V3.68_Library">Library</a> +</ul> +<li><a href="#Version3.67">Version 3.67 (limited) (4/12/96)</a> +<ul> +<li><a href="#V3.67_Documentation">Documentation</a>, + <a href="#V3.67_Procedures">Procedures</a>, + <a href="#V3.67_Platforms">Platforms</a>, + <a href="#V3.67_Interpreter">Interpreter</a>, + <a href="#V3.67_Interpreter_PDF">Interpreter (PDF)</a>, + <a href="#V3.67_Library">Library</a> +</ul> +<li><a href="#Version3.66">Version 3.66 (limited) (4/8/96)</a> +<ul> +<li><a href="#V3.66_Documentation">Documentation</a>, + <a href="#V3.66_Procedures">Procedures</a>, + <a href="#V3.66_Utilities">Utilities</a>, + <a href="#V3.66_Drivers">Drivers</a>, + <a href="#V3.66_Platforms">Platforms</a>, + <a href="#V3.66_Fonts">Fonts</a>, + <a href="#V3.66_Interpreter">Interpreter</a>, + <a href="#V3.66_Interpreter_PDF">Interpreter (PDF)</a>, + <a href="#V3.66_Streams">Streams</a>, + <a href="#V3.66_Library">Library</a> +</ul> +<li><a href="#Version3.65">Version 3.65 (limited) (3/9/96)</a> +<ul> +<li><a href="#V3.65_Documentation">Documentation</a>, + <a href="#V3.65_Procedures">Procedures</a>, + <a href="#V3.65_Utilities">Utilities</a>, + <a href="#V3.65_Drivers">Drivers</a>, + <a href="#V3.65_Platforms">Platforms</a>, + <a href="#V3.65_Interpreter">Interpreter</a>, + <a href="#V3.65_Interpreter_PDF">Interpreter (PDF)</a>, + <a href="#V3.65_Streams">Streams</a>, + <a href="#V3.65_Library">Library</a> +</ul> +<li><a href="#Version3.64">Version 3.64 (limited, incremental) (1/27/96)</a> +<ul> +<li><a href="#V3.64_Documentation">Documentation</a>, + <a href="#V3.64_Procedures">Procedures</a>, + <a href="#V3.64_Utilities">Utilities</a>, + <a href="#V3.64_Drivers">Drivers</a>, + <a href="#V3.64_Platforms">Platforms</a>, + <a href="#V3.64_Interpreter">Interpreter</a>, + <a href="#V3.64_Streams">Streams</a>, + <a href="#V3.64_Library">Library</a> +</ul> +<li><a href="#Version3.63">Version 3.63 (limited, incremental) (1/14/96)</a> +<ul> +<li><a href="#V3.63_Documentation">Documentation</a>, + <a href="#V3.63_Procedures">Procedures</a>, + <a href="#V3.63_Utilities">Utilities</a>, + <a href="#V3.63_Drivers">Drivers</a>, + <a href="#V3.63_Platforms">Platforms</a>, + <a href="#V3.63_Interpreter">Interpreter</a>, + <a href="#V3.63_Interpreter_PDF">Interpreter (PDF)</a>, + <a href="#V3.63_Streams">Streams</a>, + <a href="#V3.63_Library">Library</a> +</ul> +<li><a href="#Version3.62">Version 3.62 (limited, incremental) (12/26/95)</a> +<ul> +<li><a href="#V3.62_Documentation">Documentation</a>, + <a href="#V3.62_Procedures">Procedures</a>, + <a href="#V3.62_Interpreter">Interpreter</a>, + <a href="#V3.62_Interpreter_PDF">Interpreter (PDF)</a>, + <a href="#V3.62_Library">Library</a> +</ul> +<li><a href="#Version3.61">Version 3.61 (limited) (12/10/95)</a> +<ul> +<li><a href="#V3.61_Documentation">Documentation</a>, + <a href="#V3.61_Procedures">Procedures</a>, + <a href="#V3.61_Utilities">Utilities</a>, + <a href="#V3.61_Drivers">Drivers</a>, + <a href="#V3.61_Platforms">Platforms</a>, + <a href="#V3.61_Fonts">Fonts</a>, + <a href="#V3.61_Interpreter">Interpreter</a>, + <a href="#V3.61_Interpreter_PDF">Interpreter (PDF)</a>, + <a href="#V3.61_Streams">Streams</a>, + <a href="#V3.61_Library">Library</a> +</ul> +<li><a href="#Version3.60">Version 3.60 (limited) (11/20/95)</a> +<ul> +<li><a href="#V3.60_Documentation">Documentation</a>, + <a href="#V3.60_Procedures">Procedures</a>, + <a href="#V3.60_Utilities">Utilities</a>, + <a href="#V3.60_Drivers">Drivers</a>, + <a href="#V3.60_Platforms">Platforms</a>, + <a href="#V3.60_Fonts">Fonts</a>, + <a href="#V3.60_Interpreter">Interpreter</a>, + <a href="#V3.60_Interpreter_PDF">Interpreter (PDF)</a>, + <a href="#V3.60_Streams">Streams</a>, + <a href="#V3.60_Library">Library</a> +</ul> +<li><a href="#Version3.53">Version 3.53 (1/10/96)</a> +<ul> +<li><a href="#V3.53_Documentation">Documentation</a>, + <a href="#V3.53_Procedures">Procedures</a>, + <a href="#V3.53_Utilities">Utilities</a>, + <a href="#V3.53_Drivers">Drivers</a>, + <a href="#V3.53_Platforms">Platforms</a>, + <a href="#V3.53_Fonts">Fonts</a>, + <a href="#V3.53_Interpreter">Interpreter</a>, + <a href="#V3.53_Interpreter_PDF">Interpreter (PDF)</a>, + <a href="#V3.53_Streams">Streams</a>, + <a href="#V3.53_Library">Library</a> +</ul> +<li><a href="#Version3.52">Version 3.52 (limited) (10/6/95)</a> +<ul> +<li><a href="#V3.52_Procedures">Procedures</a>, + <a href="#V3.52_Interpreter">Interpreter</a>, + <a href="#V3.52_Library">Library</a> +</ul> +<li><a href="#Version3.51">Version 3.51 (9/27/95)</a> +<ul> +<li><a href="#V3.51_Documentation">Documentation</a>, + <a href="#V3.51_Procedures">Procedures</a>, + <a href="#V3.51_Utilities">Utilities</a>, + <a href="#V3.51_Drivers">Drivers</a>, + <a href="#V3.51_Platforms">Platforms</a>, + <a href="#V3.51_Interpreter">Interpreter</a>, + <a href="#V3.51_Interpreter_PDF">Interpreter (PDF)</a>, + <a href="#V3.51_Library">Library</a> +</ul> +<li><a href="#Version3.50">Version 3.50 (limited) (9/24/95)</a> +<ul> +<li><a href="#V3.50_Procedures">Procedures</a>, + <a href="#V3.50_Utilities">Utilities</a>, + <a href="#V3.50_Drivers">Drivers</a>, + <a href="#V3.50_Interpreter">Interpreter</a>, + <a href="#V3.50_Interpreter_PDF">Interpreter (PDF)</a>, + <a href="#V3.50_Library">Library</a> +</ul> +<li><a href="#Version3.49">Version 3.49 (limited) (9/20/95)</a> +<ul> +<li><a href="#V3.49_Documentation">Documentation</a>, + <a href="#V3.49_Procedures">Procedures</a>, + <a href="#V3.49_Drivers">Drivers</a>, + <a href="#V3.49_Platforms">Platforms</a>, + <a href="#V3.49_Interpreter">Interpreter</a>, + <a href="#V3.49_Library">Library</a> +</ul> +<li><a href="#Version3.48">Version 3.48 (limited) (9/17/95)</a> +<ul> +<li><a href="#V3.48_Documentation">Documentation</a>, + <a href="#V3.48_Procedures">Procedures</a>, + <a href="#V3.48_Drivers">Drivers</a>, + <a href="#V3.48_Platforms">Platforms</a>, + <a href="#V3.48_Interpreter">Interpreter</a>, + <a href="#V3.48_Interpreter_PDF">Interpreter (PDF)</a>, + <a href="#V3.48_Library">Library</a> +</ul> +<li><a href="#Version3.47">Version 3.47 (limited) (9/14/95)</a> +<ul> +<li><a href="#V3.47_Documentation">Documentation</a>, + <a href="#V3.47_Procedures">Procedures</a>, + <a href="#V3.47_Utilities">Utilities</a>, + <a href="#V3.47_Drivers">Drivers</a>, + <a href="#V3.47_Platforms">Platforms</a>, + <a href="#V3.47_Fonts">Fonts</a>, + <a href="#V3.47_Interpreter">Interpreter</a>, + <a href="#V3.47_Interpreter_PDF">Interpreter (PDF)</a>, + <a href="#V3.47_Streams">Streams</a>, + <a href="#V3.47_Library">Library</a> +</ul> +<li><a href="#Version3.46">Version 3.46 (limited) (9/4/95)</a> +<ul> +<li><a href="#V3.46_Documentation">Documentation</a>, + <a href="#V3.46_Procedures">Procedures</a>, + <a href="#V3.46_Utilities">Utilities</a>, + <a href="#V3.46_Drivers">Drivers</a>, + <a href="#V3.46_Platforms">Platforms</a>, + <a href="#V3.46_Interpreter">Interpreter</a>, + <a href="#V3.46_Interpreter_PDF">Interpreter (PDF)</a>, + <a href="#V3.46_Library">Library</a> +</ul> +<li><a href="#Version3.45">Version 3.45 (limited) (8/27/95)</a> +<ul> +<li><a href="#V3.45_Documentation">Documentation</a>, + <a href="#V3.45_Procedures">Procedures</a>, + <a href="#V3.45_Utilities">Utilities</a>, + <a href="#V3.45_Drivers">Drivers</a>, + <a href="#V3.45_Platforms">Platforms</a>, + <a href="#V3.45_Interpreter">Interpreter</a>, + <a href="#V3.45_Interpreter_PDF">Interpreter (PDF)</a>, + <a href="#V3.45_Streams">Streams</a>, + <a href="#V3.45_Library">Library</a> +</ul> +<li><a href="#Version3.44">Version 3.44 (limited) (8/21/95)</a> +<ul> +<li><a href="#V3.44_Documentation">Documentation</a>, + <a href="#V3.44_Procedures">Procedures</a>, + <a href="#V3.44_Utilities">Utilities</a>, + <a href="#V3.44_Drivers">Drivers</a>, + <a href="#V3.44_Platforms">Platforms</a>, + <a href="#V3.44_Interpreter">Interpreter</a>, + <a href="#V3.44_Interpreter_PDF">Interpreter (PDF)</a>, + <a href="#V3.44_Library">Library</a> +</ul> +<li><a href="#Version3.43">Version 3.43 (limited) (8/10/95)</a> +<ul> +<li><a href="#V3.43_Documentation">Documentation</a>, + <a href="#V3.43_Procedures">Procedures</a>, + <a href="#V3.43_Platforms">Platforms</a>, + <a href="#V3.43_Fonts">Fonts</a>, + <a href="#V3.43_Interpreter">Interpreter</a>, + <a href="#V3.43_Streams">Streams</a>, + <a href="#V3.43_Library">Library</a> +</ul> +<li><a href="#Version3.42">Version 3.42 (limited) (8/2/95)</a> +<ul> +<li><a href="#V3.42_Documentation">Documentation</a>, + <a href="#V3.42_Procedures">Procedures</a>, + <a href="#V3.42_Platforms">Platforms</a>, + <a href="#V3.42_Interpreter">Interpreter</a>, + <a href="#V3.42_Streams">Streams</a>, + <a href="#V3.42_Library">Library</a> +</ul> +<li><a href="#Version3.41">Version 3.41 (limited) (7/27/95)</a> +<ul> +<li><a href="#V3.41_Documentation">Documentation</a>, + <a href="#V3.41_Procedures">Procedures</a>, + <a href="#V3.41_Utilities">Utilities</a>, + <a href="#V3.41_Drivers">Drivers</a>, + <a href="#V3.41_Platforms">Platforms</a>, + <a href="#V3.41_Fonts">Fonts</a>, + <a href="#V3.41_Interpreter">Interpreter</a>, + <a href="#V3.41_Interpreter_PDF">Interpreter (PDF)</a>, + <a href="#V3.41_Streams">Streams</a>, + <a href="#V3.41_Library">Library</a> +</ul> +<li><a href="#Version3.40">Version 3.40 (limited) (6/28/95)</a> +<ul> +<li><a href="#V3.40_Documentation">Documentation</a>, + <a href="#V3.40_Procedures">Procedures</a>, + <a href="#V3.40_Utilities">Utilities</a>, + <a href="#V3.40_Platforms">Platforms</a>, + <a href="#V3.40_Interpreter">Interpreter</a>, + <a href="#V3.40_Streams">Streams</a>, + <a href="#V3.40_Library">Library</a> +</ul> +<li><a href="#Version3.39">Version 3.39 (limited) (6/24/95)</a> +<ul> +<li><a href="#V3.39_Documentation">Documentation</a>, + <a href="#V3.39_Procedures">Procedures</a>, + <a href="#V3.39_Utilities">Utilities</a>, + <a href="#V3.39_Platforms">Platforms</a>, + <a href="#V3.39_Fonts">Fonts</a>, + <a href="#V3.39_Interpreter">Interpreter</a>, + <a href="#V3.39_Streams">Streams</a>, + <a href="#V3.39_Library">Library</a> +</ul> +<li><a href="#Version3.38">Version 3.38 (limited) (6/18/95)</a> +<ul> +<li><a href="#V3.38_Documentation">Documentation</a>, + <a href="#V3.38_Procedures">Procedures</a>, + <a href="#V3.38_Utilities">Utilities</a>, + <a href="#V3.38_Drivers">Drivers</a>, + <a href="#V3.38_Platforms">Platforms</a>, + <a href="#V3.38_Fonts">Fonts</a>, + <a href="#V3.38_Interpreter">Interpreter</a>, + <a href="#V3.38_Interpreter_PDF">Interpreter (PDF)</a>, + <a href="#V3.38_Streams">Streams</a>, + <a href="#V3.38_Library">Library</a> +</ul> +<li><a href="#Version3.37">Version 3.37 (limited) (5/11/95)</a> +<ul> +<li><a href="#V3.37_Documentation">Documentation</a>, + <a href="#V3.37_Procedures">Procedures</a>, + <a href="#V3.37_Utilities">Utilities</a>, + <a href="#V3.37_Drivers">Drivers</a>, + <a href="#V3.37_Fonts">Fonts</a>, + <a href="#V3.37_Interpreter_PostScript">Interpreter (PostScript)</a>, + <a href="#V3.37_Interpreter_PDF">Interpreter (PDF)</a> +</ul> +<li><a href="#Version3.36">Version 3.36 (limited) (5/4/95)</a> +<ul> +<li><a href="#V3.36_Documentation">Documentation</a>, + <a href="#V3.36_Procedures">Procedures</a>, + <a href="#V3.36_Drivers">Drivers</a>, + <a href="#V3.36_Interpreter">Interpreter</a>, + <a href="#V3.36_Library">Library</a> +</ul> +<li><a href="#Version3.35">Version 3.35 (internal) (5/2/95)</a> +<ul> +<li><a href="#V3.35_Documentation">Documentation</a>, + <a href="#V3.35_Procedures">Procedures</a>, + <a href="#V3.35_Utilities">Utilities</a>, + <a href="#V3.35_Drivers">Drivers</a>, + <a href="#V3.35_Platforms">Platforms</a>, + <a href="#V3.35_Fonts">Fonts</a>, + <a href="#V3.35_Interpreter">Interpreter</a>, + <a href="#V3.35_Library">Library</a> +</ul> +<li><a href="#Version3.34">Version 3.34 (internal) (4/18/95)</a> +<ul> +<li><a href="#V3.34_Documentation">Documentation</a>, + <a href="#V3.34_Procedures">Procedures</a>, + <a href="#V3.34_Interpreter">Interpreter</a>, + <a href="#V3.34_Library">Library</a> +</ul> +<li><a href="#Version3.33">Version 3.33 (4/13/95)</a> +<ul> +<li><a href="#V3.33_Documentation">Documentation</a>, + <a href="#V3.33_Procedures">Procedures</a>, + <a href="#V3.33_Utilities">Utilities</a>, + <a href="#V3.33_Drivers">Drivers</a>, + <a href="#V3.33_Platforms">Platforms</a>, + <a href="#V3.33_Fonts">Fonts</a>, + <a href="#V3.33_Library">Library</a> +</ul> +<li><a href="#Version3.32">Version 3.32 (4/7/95)</a> +<ul> +<li><a href="#V3.32_Documentation">Documentation</a>, + <a href="#V3.32_Procedures">Procedures</a>, + <a href="#V3.32_Utilities">Utilities</a>, + <a href="#V3.32_Drivers">Drivers</a>, + <a href="#V3.32_Platforms">Platforms</a>, + <a href="#V3.32_Interpreter">Interpreter</a>, + <a href="#V3.32_Streams">Streams</a>, + <a href="#V3.32_Library">Library</a> +</ul> +<li><a href="#Version3.31">Version 3.31 (4/2/95)</a> +<ul> +<li><a href="#V3.31_Documentation">Documentation</a>, + <a href="#V3.31_Procedures">Procedures</a>, + <a href="#V3.31_Utilities">Utilities</a>, + <a href="#V3.31_Drivers">Drivers</a>, + <a href="#V3.31_Platforms">Platforms</a>, + <a href="#V3.31_Interpreter">Interpreter</a>, + <a href="#V3.31_Streams">Streams</a>, + <a href="#V3.31_Library">Library</a> +</ul> +<li><a href="#Version3.30">Version 3.30 (beta) (3/21/95)</a> +<ul> +<li><a href="#V3.30_Documentation">Documentation</a>, + <a href="#V3.30_Utilities">Utilities</a>, + <a href="#V3.30_Drivers">Drivers</a>, + <a href="#V3.30_Interpreter_PostScript">Interpreter (PostScript)</a>, + <a href="#V3.30_Interpreter_PDF">Interpreter (PDF)</a>, + <a href="#V3.30_Library">Library</a> +</ul> +<li><a href="#Version3.29">Version 3.29 (internal) (3/8/95)</a> +<ul> +<li><a href="#V3.29_Documentation">Documentation</a>, + <a href="#V3.29_Procedures">Procedures</a>, + <a href="#V3.29_Utilities">Utilities</a>, + <a href="#V3.29_Fonts">Fonts</a>, + <a href="#V3.29_Drivers">Drivers</a>, + <a href="#V3.29_Interpreter_PostScript">Interpreter (PostScript)</a>, + <a href="#V3.29_Interpreter_PDF">Interpreter (PDF)</a>, + <a href="#V3.29_Streams">Streams</a>, + <a href="#V3.29_Library">Library</a> +</ul> +<li><a href="#Version3.28">Version 3.28 (beta) (2/13/95)</a> +<ul> +<li><a href="#V3.28_Documentation">Documentation</a>, + <a href="#V3.28_Procedures">Procedures</a>, + <a href="#V3.28_Utilities">Utilities</a>, + <a href="#V3.28_Drivers">Drivers</a>, + <a href="#V3.28_Interpreter">Interpreter</a>, + <a href="#V3.28_Library">Library</a> +</ul> +<li><a href="#Version3.27">Version 3.27 (beta)(withdrawn) (2/8/95)</a> +<ul> +<li><a href="#V3.27_Documentation">Documentation</a>, + <a href="#V3.27_Procedures">Procedures</a>, + <a href="#V3.27_Utilities">Utilities</a>, + <a href="#V3.27_Drivers">Drivers</a>, + <a href="#V3.27_Platforms">Platforms</a>, + <a href="#V3.27_Fonts">Fonts</a>, + <a href="#V3.27_Interpreter">Interpreter</a>, + <a href="#V3.27_Streams">Streams</a>, + <a href="#V3.27_Library">Library</a> +</ul> +<li><a href="#Version3.26">Version 3.26 (beta) (2/1/95)</a> +<ul> +<li><a href="#V3.26_Documentation">Documentation</a>, + <a href="#V3.26_Procedures">Procedures</a>, + <a href="#V3.26_Utilities">Utilities</a>, + <a href="#V3.26_Drivers">Drivers</a>, + <a href="#V3.26_Platforms">Platforms</a>, + <a href="#V3.26_Interpreter">Interpreter</a>, + <a href="#V3.26_Streams">Streams</a>, + <a href="#V3.26_Library">Library</a> +</ul> +<li><a href="#Version3.25">Version 3.25 (beta) (1/24/95)</a> +<ul> +<li><a href="#V3.25_Documentation">Documentation</a>, + <a href="#V3.25_Procedures">Procedures</a>, + <a href="#V3.25_Drivers">Drivers</a>, + <a href="#V3.25_Platforms">Platforms</a>, + <a href="#V3.25_Interpreter">Interpreter</a>, + <a href="#V3.25_Library">Library</a> +</ul> +<li><a href="#Version3.24">Version 3.24 (beta) (1/17/95)</a> +<ul> +<li><a href="#V3.24_Documentation">Documentation</a>, + <a href="#V3.24_Procedures">Procedures</a>, + <a href="#V3.24_Drivers">Drivers</a>, + <a href="#V3.24_Platforms">Platforms</a>, + <a href="#V3.24_Fonts">Fonts</a>, + <a href="#V3.24_Interpreter">Interpreter</a>, + <a href="#V3.24_Interpreter_PostScript">Interpreter (PostScript)</a>, + <a href="#V3.24_Interpreter_PDF">Interpreter (PDF)</a>, + <a href="#V3.24_Streams">Streams</a>, + <a href="#V3.24_Library">Library</a> +</ul> +<li><a href="#Version3.23">Version 3.23 (beta) (1/5/95)</a> +<ul> +<li><a href="#V3.23_Documentation">Documentation</a>, + <a href="#V3.23_Procedures">Procedures</a>, + <a href="#V3.23_Utilities">Utilities</a>, + <a href="#V3.23_Drivers">Drivers</a>, + <a href="#V3.23_Platforms">Platforms</a>, + <a href="#V3.23_Fonts">Fonts</a>, + <a href="#V3.23_Interpreter_PostScript">Interpreter (PostScript)</a>, + <a href="#V3.23_Interpreter_PDF">Interpreter (PDF)</a>, + <a href="#V3.23_Streams">Streams</a>, + <a href="#V3.23_Library">Library</a> +</ul> +<li><a href="#Version3.22">Version 3.22 (beta) (11/30/94)</a> +<ul> +<li><a href="#V3.22_Procedures">Procedures</a>, + <a href="#V3.22_Drivers">Drivers</a>, + <a href="#V3.22_Platforms">Platforms</a>, + <a href="#V3.22_Fonts">Fonts</a>, + <a href="#V3.22_Interpreter">Interpreter</a>, + <a href="#V3.22_Streams">Streams</a>, + <a href="#V3.22_Library">Library</a> +</ul> +<li><a href="#Version3.21">Version 3.21 (beta) (11/17/94)</a> +<ul> +<li><a href="#V3.21_Documentation">Documentation</a>, + <a href="#V3.21_Procedures">Procedures</a>, + <a href="#V3.21_Utilities">Utilities</a>, + <a href="#V3.21_Drivers">Drivers</a>, + <a href="#V3.21_Platforms">Platforms</a>, + <a href="#V3.21_Fonts">Fonts</a>, + <a href="#V3.21_Interpreter">Interpreter</a>, + <a href="#V3.21_Streams">Streams</a>, + <a href="#V3.21_Library">Library</a> +</ul> +<li><a href="#Version3.20">Version 3.20 (beta) (10/31/94)</a> +<ul> +<li><a href="#V3.20_Documentation">Documentation</a>, + <a href="#V3.20_Procedures">Procedures</a>, + <a href="#V3.20_Utilities">Utilities</a>, + <a href="#V3.20_Drivers">Drivers</a>, + <a href="#V3.20_Platforms">Platforms</a>, + <a href="#V3.20_Fonts">Fonts</a>, + <a href="#V3.20_Interpreters">Interpreters</a>, + <a href="#V3.20_Library">Library</a> +</ul> +<li><a href="#Version3.13">Version 3.13(private) (10/3/94)</a> +<ul> +<li><a href="#V3.13_Documentation">Documentation</a>, + <a href="#V3.13_Procedures">Procedures</a>, + <a href="#V3.13_Utilities">Utilities</a>, + <a href="#V3.13_Drivers">Drivers</a>, + <a href="#V3.13_Platforms">Platforms</a>, + <a href="#V3.13_Fonts">Fonts</a>, + <a href="#V3.13_Interpreter">Interpreter</a>, + <a href="#V3.13_Streams">Streams</a>, + <a href="#V3.13_Library">Library</a> +</ul> +<li><a href="#Version3.12">Version 3.12 (9/29/94)</a> +<ul> +<li><a href="#V3.12_Documentation">Documentation</a>, + <a href="#V3.12_Procedures">Procedures</a>, + <a href="#V3.12_Drivers">Drivers</a>, + <a href="#V3.12_Platforms">Platforms</a>, + <a href="#V3.12_Interpreter">Interpreter</a>, + <a href="#V3.12_Streams">Streams</a>, + <a href="#V3.12_Library">Library</a> +</ul> +<li><a href="#Version3.1.1">Version 3.1.1 (9/25/94)</a> +<ul> +<li><a href="#V3.1.1_Documentation">Documentation</a>, + <a href="#V3.1.1_Procedures">Procedures</a>, + <a href="#V3.1.1_Drivers">Drivers</a>, + <a href="#V3.1.1_Platforms">Platforms</a>, + <a href="#V3.1.1_Interpreter">Interpreter</a> +</ul> +<li><a href="#Version3.1">Version 3.1 (9/20/94)</a> +<ul> +<li><a href="#V3.1_Documentation">Documentation</a>, + <a href="#V3.1_Procedures">Procedures</a>, + <a href="#V3.1_Drivers">Drivers</a>, + <a href="#V3.1_Interpreter">Interpreter</a>, + <a href="#V3.1_Streams">Streams</a>, + <a href="#V3.1_Library">Library</a> +</ul> +<li><a href="#Version3.0.3">Version 3.0.3 (9/16/94)</a> +<ul> +<li><a href="#V3.0.3_Documentation">Documentation</a>, + <a href="#V3.0.3_Procedures">Procedures</a>, + <a href="#V3.0.3_Utilities">Utilities</a>, + <a href="#V3.0.3_Drivers">Drivers</a>, + <a href="#V3.0.3_Platforms">Platforms</a>, + <a href="#V3.0.3_Fonts">Fonts</a>, + <a href="#V3.0.3_Streams">Streams</a>, + <a href="#V3.0.3_Interpreter">Interpreter</a>, + <a href="#V3.0.3_Library">Library</a> +</ul> +<li><a href="#Version3.02">Version 3.02 (8/30/94)</a> +<ul> +<li><a href="#V3.02_Documentation">Documentation</a>, + <a href="#V3.02_Procedures">Procedures</a>, + <a href="#V3.02_Utilities">Utilities</a>, + <a href="#V3.02_Drivers">Drivers</a>, + <a href="#V3.02_Platforms">Platforms</a>, + <a href="#V3.02_Fonts">Fonts</a>, + <a href="#V3.02_Interpreter">Interpreter</a>, + <a href="#V3.02_Streams">Streams</a>, + <a href="#V3.02_Library">Library</a> +</ul> +<li><a href="#Version3.01">Version 3.01 (8/14/94)</a> +<ul> +<li><a href="#V3.01_Documentation">Documentation</a>, + <a href="#V3.01_Procedures">Procedures</a>, + <a href="#V3.01_Utilities">Utilities</a>, + <a href="#V3.01_Drivers">Drivers</a>, + <a href="#V3.01_Platforms">Platforms</a>, + <a href="#V3.01_Fonts">Fonts</a>, + <a href="#V3.01_Interpreter">Interpreter</a>, + <a href="#V3.01_Streams">Streams</a>, + <a href="#V3.01_Library">Library</a> +</ul> +<li><a href="#Version3.0">Version 3.0 (8/1/94)</a> +<ul> +<li><a href="#V3.0_Documentation">Documentation</a>, + <a href="#V3.0_Procedures">Procedures</a>, + <a href="#V3.0_Utilities">Utilities</a>, + <a href="#V3.0_Drivers">Drivers</a>, + <a href="#V3.0_Platforms">Platforms</a>, + <a href="#V3.0_Fonts">Fonts</a>, + <a href="#V3.0_Interpreter">Interpreter</a>, + <a href="#V3.0_Streams">Streams</a>, + <a href="#V3.0_Library">Library</a> +</ul> +</ul></blockquote> + +<!-- [1.2 end table of contents] =========================================== --> + +<!-- [1.3 begin hint] ====================================================== --> + +<p> +This document is a history of Ghostscript releases numbered 3.n. For more +recent changes, see the the other history documents and, for the latest +versions, the news: + +<blockquote> +<a href="News.htm">News</a><br> +<a href="History4.htm">History of Ghostscript versions 4.n</a><br> +History of Ghostscript versions 3.n (this document)<br> +<a href="History2.htm">History of Ghostscript versions 2.n</a><br> +<a href="History1.htm">History of Ghostscript versions 1.n</a> +</blockquote> + +<p>For other information, see the <a href="Readme.htm">Ghostscript +overview</a>. + +<!-- [1.3 end hint] ======================================================== --> + +<hr> + +<!-- [1.0 end visible header] ============================================== --> + +<h2><a name="Version3.70p1"></a>Version 3.70 patch 1 (6/24/96)</h2> + +<p> +This contains a few last-minute patches before the release. + +<h3><a name="V3.70p1_Procedures"></a>Procedures</h3><pre> +Comments out the color inkjet drivers in the cc-based makefile, because a +bug in Sun's cc prevents them from compiling. (cc-head.mak) + +</pre><h3><a name="V3.70p1_Drivers"></a>Drivers</h3><pre> +Fixes bugs: + - The os2prn driver smashed memory. (gdevos2p.c) + - Some initialized structures weren't declared 'static'. +(gdevpdf.c, gdevpdfm.c) + - The PNG driver wouldn't compile with some older versions of the +PNG library. (gdevpng.c) + +</pre> + +<h2><a name="Version3.70"></a>Version 3.70 (limited) (6/23/96)</h2> + +<p> +This is the candidate fileset for 4.0. Aside from one optimization +for the PDF writer, the only changes are bug fixes. + +<h3><a name="V3.70_Documentation"></a>Documentation</h3><pre> + +Renames all the documentation files from *.doc to *.txt, since the .doc +extension didn't give any information about the format of the file. +(readme, *.doc, *.txt) + +Notes that IJG JPEG library v6[a] is now required. (jpeg.mak) + +Brings ps2pdf.1 up to date. (ps2pdf.1) + +Adds a new file describing Aladdin's C coding practices. (c-style.txt) + +Updates the man pages to refer to version 4.0. (gs.1, pdf2ps.1, ps2ascii.1, +ps2pdf.1) + +</pre><h3><a name="V3.70_Procedures"></a>Procedures</h3><pre> + +Changes some file names to fit within the MS-DOS 8.3 limit. (gs.mak) + +Adds the PDF writer to the remaining 32-bit configurations (Watcom, OS/2, +MSC). (watc.mak, watcwin.mak, os2.mak, msc.mak, msvcwint.mak) + +Changes the -sFONTMAP= switch so it can take a list of font names, like a +search path. (use.txt) + +</pre><h3><a name="V3.70_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - Signed and unsigned values were mixed inconsistently. (gdevcdj.c) + - PDF files could contain e-format floating point numbers, which the +PDF specification doesn't allow. (gdevpdfx.h, gdevpdf*.c) + - The PDF writer didn't handle glyphshow properly. (gs_pdfwr.ps) + - The PDF writer did the wrong thing with fonts whose FontMatrix had +a non-zero translation component. (gs_pdfwr.ps, gdevpdft.c) + - The stand-alone bounding box device could crash when setting +parameters. (gdevbbox.c) + - The mswinpr2 driver smashed memory. (gdevwpr2.c) + +Changes the PDF writer so that if it encounters a re-encoded character, it +tries to map it to an encoded character in the standard (ISO Latin-1) +encoding rather than converting the entire string containing it to a bitmap. +This dramatically improves output file size for files with a few divergently +encoded characters, but it may cause the text in the PDF file to differ from +the text in the PostScript input. (gdevpdft.c) + +Disallows BitsPerPixel=16 in the MS Windows and OS/2 drivers, since this bit +depth is not supported by Windows and would require special extra buffering. +(install.txt, dwtext.h, dwtext.cpp, gdevmswn.c, gdevpm.c, gdevwpr2.c) + +</pre><h3><a name="V3.70_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - On the PC platforms, file names weren't changed to reflect the +value of CONFIG. (gs.mak, bc*.mak, ms*.mak, os2.mak, tc*.mak, watc*.mak, +wccommon.mak) + +Modifies some makefiles for greater reusability. (bclib.mak, watclib.mak) + +</pre><h3><a name="V3.70_Fonts"></a>Fonts</h3><pre> + +Changes the font searching rules in the following NON-BACKWARD-COMPATIBLE +way: (gs_fonts.ps, gs_res.ps) + - -sFONTMAP=files specifies a list of files containing fontmaps; +previously, it specified only a single fontmap file. + - If -sFONTMAP= is not used, the interpreter reads the Fontmaps from +*all* directories on the search path, and does so even if FONTPATH or +GS_FONTPATH is set; previously, it read only the first Fontmap, and only if +[GS_]FONTPATH was not set. + - Fontmap(s) take precedence over [GS_]FONTPATH; previously, +[GS_]FONTPATH caused Fontmap to be ignored. (You can still force Fontmap to +be ignored with -dNOFONTMAP.) + - Earlier [GS_]FONTPATH entries take precedence over later; +previously, later entries took precedence over earlier. Note that this is +different from Fontmap: earlier Fontmaps in the search path take precedence +over later, but within a single Fontmap, later entries take precedence over +earlier (for backward compatibility). + - [GS_]FONTPATH is consulted only if there is no Fontmap entry for a +font, or no Fontmap entry leads to successful loading; previously, +[GS_]FONTPATH was always consulted at startup. + - If loading a font fails, the interpreter tries the next Fontmap +entry; previously, it fell back to font substitution. + +</pre><h3><a name="V3.70_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - Filters didn't peek ahead for an EOD (see Streams below). +(zfileio.c, zpaint.c) + +Splits up a file to allow internal access to user and system parameters even +in Level 1. (zmisc2.c, zusparam.c) + +Adds LIBPATH as a predefined name in systemdict. Its value is an array of +strings comprising the library search path. (imain.c) + +</pre><h3><a name="V3.70_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre> + +Fixes bugs: + - A Dests dictionary entry with an array (rather than a dictionary) +value caused an error. (pdf_main.ps) + - Rotated pages could have incorrect translation and/or clipping. +(pdf_main.ps) + +</pre><h3><a name="V3.70_Streams"></a>Streams</h3><pre> + +Fixes bugs: + - If a buffer boundary fell just before an EOD, and the client read +exactly as much data as was present before the EOD, filters didn't consume +the EOD. (This is required as a tricky consequence of the Adobe +specification.) (stream.h, strimpl.h, stream.c) + +</pre><h3><a name="V3.70_Library"></a>Library</h3><pre> + +Fixes bugs: + - An extra column of bits could get turned on at the right edge of +masked or monochrome images. (gximage2.c) + - Rasterizing very long curves could cause arithmetic errors or +floating point overflows. (gxpcopy.c) + - Banding with large line widths could truncate curves or introduce +spurious lines. (gxclpath.c) + +</pre> + +<hr> + +<h2><a name="Version3.69"></a>Version 3.69 (limited) (6/14/96)</h2> + +<p> +More bug fixes, plus one irresistible new feature: the ability to use +TrueType fonts as freely as Type 1 fonts. Also, one new feature (outside +clipping) that was needed for Aladdin's PCL XL project. We incremented the +version number because of the change in trapezoid and path filling (see +under Library below). + +<h3><a name="V3.69_Documentation"></a>Documentation</h3><pre> +Brings documentation about fonts up to date. (fonts.doc) + +Updates current.doc to reflect changes since 3.53. (current.doc) + +Updates the DLL documentation to reflect recent changes. (dll.doc) + +Documents a workaround for the code generation bug in gcc 2.7.x. (make.doc) + +Changes the contact information for potential commercial customers in +Europe. (new-user.doc) + +Updates the OS/2 documentation to make it current. (install.doc, make.doc) + +Documents -dCOLORSCREEN=0. (use.doc) + +</pre><h3><a name="V3.69_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - 'make clean' didn't work in the Watcom environment. +(wmakebat.bat, gs.mak, msc.mak, msvcwint.mak, os2.mak, tccommon.mak, +unixhead.mak, wccommon.mak) + - The X11 libraries were listed in an incorrect order. +(ansihead.mak, cc-head.mak, gcc-head.mak, ugcclib.mak, unix-end.mak) + - The OS/2 makefile didn't ignore errors from `erase' commands. +(os2.mak) + +Adds the PDF writer to the 32-bit MS Windows configuration. (bcwin32.mak) + +Adds the PNG drivers to the 32-bit MS Windows platform, since they now +compile properly. (bcwin32.mak) + +Changes the ttfont feature so that it refers to support for direct usage of +TrueType fonts; puts support for Type 42 fonts into a separate feature +(type42). (gs.mak, int.mak) + +Adds direct TrueType font support to the Windows platforms. (bcwin.mak, +bcwin32.mak) + +Rewrites vms.mak to be structured more like the other makefiles. (vms.mak, +modules.lis) + +Makes the device lists in vms-*.mak the same as those for the Unix +configurations. (vms-cc.mak, vms-decc.mak, vms-gcc.mak) + +Changes the default X library directory for gcc to /usr/X11/lib. +(gcc-head.mak) + +Adds the list of devices to --help, since HylaFax depends on this. +(imainarg.c) + +Adds -dCOLORSCREEN=0 to indicate use of 4 separate color screens with the +same frequency and angle. (gs_init.ps) + +</pre><h3><a name="V3.69_Utilities"></a>Utilities</h3><pre> + +Fixes bugs: + - When ps2epsi encountered a blank page, it called the +(undocumented) .quit operator with only one argument, causing a stack +underflow. (ps2epsi.ps) + - An extraneous file was included in the fileset. (checkacc.ps) + - A file was omitted from the fileset. (bench.c) + - Images in PostScript files produced by pdf2ps were processed about +50 times slower than they should have been. (gs_pdf.ps) + +</pre><h3><a name="V3.69_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - An #include was omitted. (gdevpdfi.c) + - The BJC driver could get into an inconsistent state. (gdevcdj.c) + - Braces were omitted around the values for two initialized byte +arrays. (gdevpcx.c) + - A function used 'float' in its argument list, causing problems in +mixed ANSI/non-ANSI compilation. (gdevcdj.c) + - signed and unsigned char pointers were used inconsistently. +(gdevcdj.c, gdevcgml.c) + - Some header files weren't protected against double inclusion. +(gdevprn.h, gdevtifs.h) + - The 24-bit PNG driver included unnecessary copies of the color +mapping procedures. (gdevpng.c) + +Fixes bugs in the PDF writer: + - The PDF writer sometimes produced a double // in front of a filter +name. (gdevpdfi.c) + - The PDF writer produced zero-width, zero-height images for +non-standard fonts. (bug introduced since 3.68) (gdevpdfi.c) + - The PDF writer got confused if the input file invoked +setpagedevice. (gdevpdfp.c) + - The PDF writer put annotations on the page after the one they were +supposed to be on. (gdevpdf.c) + - The PDF writer sometimes failed to set the font when needed. +(gdevpdf.c) + - The PDF writer could produce in-line images that were too large. +(gdevpdfi.c) + - The PDF writer didn't scale explicit character and word spacing +(ashow/widthshow/awidthshow) properly. (gdevpdft.c) + - The PDF writer didn't copy named destination or article title +strings, possibly leading to dangling pointers. (gdevpdf.c, gdevpdfm.c) + - The PDF writer produced incorrect output for re-encoded fonts. +(It now converts any string containing characters in non-standard positions +to bitmaps; this will be fixed in a later release.) (gs_pdfwr.ps, +gdevpdfx.h, gdevpdfp.c, gdevpdft.c) + +Updates a few drivers for the change in the handling of band device +procedures. (gdevcp50.c, gdevdjet.c) + +Updates the X Windows driver for strip halftones. (gdevx.c) + +Adds anti-aliasing capability to the os2pm device. (gdevpm.c) + +Increases the sizes of some tables in the PDF writer. (gdevpdfx.h) + +</pre><h3><a name="V3.69_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - A patch for the MS Windows platform was accidentally omitted. +(gp_mswin.c) + - A block of code was accidentally duplicated. (dwmain.cpp) + - An identifier exceeded VAX VMS C's limit of 31 characters. +(gscspace.h) + - File name enumeration didn't work properly on Unix systems +(still/again). (gp_unifs.c) + - On MS Windows, If you closed Ghostscript with the system menu, you +only closed the text window; Ghostscript kept running and you had to use the +task manager to kill it. (dwmain.cpp, dwmainc.cpp, dwtext.cpp) + - Some DLL-related typedefs were not consistent. (dwdll.h, gsdll.h, +dpmainc.c, dwdll.cpp) + - Attempts to call the DLL before it was initialized were not +detected. (gsdll.c) + - Bitmap line lengths were rounded up even on 32-bit Windows, which +doesn't want this. (gdevwdib.c) + +Further improves the handling of attempts to use the DLL when it is already +in use. (dwdll.cpp, gsdll.c) + +Adds a DLL-compatible main program for OS/2. (dpmainc.c, gp_os2.c, gsdll.c) + +</pre><h3><a name="V3.69_Fonts"></a>Fonts</h3><pre> + +Fixes bugs: + - The WingDings TrueType font wasn't loaded properly. (gs_ttf.ps) + +Makes changes so that TrueType fonts can appear in the Fontmap and can be +loaded directly. (gs_fonts.ps, gs_ttf.ps) + +</pre><h3><a name="V3.69_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - Executing a .quit with only 1 element on the operand stack caused +an invalid access. (zcontrol.c) + - The usage help message contained incorrect double %%s. +(imainarg.c) + - If an initialization file tried to use any Encodings other than +the 4 registered ones, it couldn't find them. (gs_init.ps, gs_res.ps) + - Places that expected arrays of coordinates (rectangles, +x/y/xyshow) didn't accept packed arrays. (ibnum.c, zdps1.c) + - filterdict was still visible after initialization. (gs_init.ps) + - The usage error message wasn't terminated by a newline. +(imainarg.c) + - setcacheparams (or setting the MaxFontCache user parameter) didn't +actually affect the size of the character cache. (zfont.c, zmisc2.c) + - The main interpreter loop declared iref as a ref *, even though it +may only be a ref_packed *. (iref.h, interp.c) + +Changes the character cache so it ignores absurd FontBBox values. Nothing +in the Adobe spec suggests doing this, but it is necessary for handling +questionable output produced by PageMaker 5.0 (an Adobe product!). +(zchar1.c) + +Changes some type declarations slightly to reduce the number of 'discarding +const' compiler warnings. (igc.h, igc.c, igcref.c) + +Adds .setclipoutside and .currentclipoutside operators for accessing the new +outside clipping capability. (zpath.c) + +Adds the dictionary stack to the information printed in case of a fatal +problem. (imain.c) + +Adds .set/currentrenderalgorithm operators for testing. (zrop.c) + +</pre><h3><a name="V3.69_Library"></a>Library</h3><pre> + +Fixes bugs: + - The TrueType rasterizer didn't map quadratic to cubic splines +well, and didn't handle off-curve points at the end of a contour properly. +(gstype42.c) + - An #include was omitted. (gsimage.c, gxclimag.c) + - Some compilers complained about statements with no effect, or +comma operators with no effect on the left. (gschar.c, gxcpath.c, gxfill.c) + - TrueType or Type 42 glyphs with a repeat count that crossed a +contour boundary produced incorrect output. (gstype42.c) + - TrueType / Type 42 composite glyphs involving rotation were placed +incorrectly. (gstype42.c) + - Type 42 fonts with an absent or incorrect FontBBox could fail to +produce output. (gstype42.c) + - Some header files weren't protected against double inclusion. +(gsio.h, gdebug.h) + - Decoding filters didn't "look ahead" to detect EOD, so if the last +read operation before closing the filter ended just before the EOD mark, the +EOD mark might not be absorbed. (stream.h, stream.c) + - Filling paths consisting of multiple subpaths that overlap in Y +produced slightly inaccurate output. We were unable to find a way to fix +this without making a NON-BACKWARD-COMPATIBLE change in the interface for +the recently introduced fill_trapezoid device procedure. (gxdevice.h, +gdevbbox.c, gdevddrw.c, gdevnfwd.c, gxfill.c) + - When banding, get_bits didn't detect calls with out-of-range Y +values. (gxclread.c) + - setcacheparams didn't actually affect the size of the character +cache. (gsfont.h, gxbcache.h, gxfcache.h, gschar.c, gsfont.c, gxbcache.c, +gxccman.c, gxclbits.c) + - When banding, colored halftones could be mangled. (gxclread.c) + +Fixes bugs in the bounding box device: + - The bounding box device could give bizarre results if any objects +crossed the lower edge of the page. (gdevbbox.c) + - The bounding box device could get a memory access error when +processing image data. (gdebbox.c) + - The bounding box device ran the default drawing algorithms even if +it had no target (performance bug only). (gdevbbox.c) + - The bounding box device computed an incorrect (too small) box for +partially clipped bitmap images. (gdevbbox.c) + - The bounding box device got confused by files that filled the +entire page with a background color. (gdevbbox.c) + - The bounding box device produced infinite-height boxes for certain +kinds of data. (gdevbbox.c) + +Changes some type declarations slightly to reduce the number of 'discarding +const' compiler warnings. (gsmemory.h, gsstruct.h) + +Adds the capability of clipping to the outside rather than the inside of the +clipping path. This is required for emulating an obscure feature of the +Microsoft Windows GDI. (gspath.h, gxclpath.h, gxpath.h, gxcpath.h, +gzcpath.h, gspath.c, gxacpath.c, gxclpath.c, gxclread.c, gxcpath.c.) + +Makes it possible for band devices to select the underlying memory device +used to accumulate the actual bits. This is required for (at least) PCL5 +emulation. This requires adding a procedure to the gx_device_printer +structure, which, for devices that initialize the structure without using +the macros in gdevprn.h or access the printer-specific procedures directly, +is a NON-BACKWARD-COMPATIBLE change. (gdevprn.h, gxclist.h, gxdevice.h, +gdevdflt.c, gdevprn.c, gxclread.c) + +Speeds up handling of rotated or halftoned masked images. (gximage2.c) + +Adds an output_page procedure to the bounding box device, for testing. +(gdevbbox.c) + +Adds a sample device that keeps track of the "render algorithm", for PCL5c +emulation. (gdevrrgb.c) + +</pre> + +<h2><a name="Version3.68p4"></a>Version 3.68 patch 4 (5/23/96)</h2> + +<p> +More minor bug fixes, mostly related to the MS Windows implementation. + +<h3><a name="V3.68p4_Documentation"></a>Documentation</h3><pre> +Further updates various doc files to make them more useful to new users. +(NEWS, README, current.doc, helpers.doc, new-user.doc) + +Adds user-contributed documentation for ps2pdf. (ps2pdf.doc, unix-end.mak) + +Documents a bug in the Borland C++ 4.52 compiler, and where to find the +patch for it. (make.doc) + +</pre><h3><a name="V3.68p4_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - A command line exceeded the MS-DOS 120 character limit. +(devs.mak) + +A file was accidentally omitted from the fileset. (wmakebat.bat) + +</pre><h3><a name="V3.68p4_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - Many of the 'show' operators didn't work properly if the PDF +writer was included in the configuration. (gs_pdfwr.ps) + - x_wrap_get_bits was ridiculously slow. (It still is, but not +quite as ridiculously.) (gxcindex.h, gdevxalt.c) + - The PDF writer generated CR instead of CalRGB, which is legal per +the Adobe spec but not compatible with some Adobe Acrobat products. +(gdevpdfi.c) + - Some signed/unsigned discrepancies caused compilation warnings. +(gdevpdfm.c, gdevpdfp.c, gdevpdft.c) + +Fixes bugs in the Windows driver: + - An accidentally opened tiny window didn't get closed. +(gdevwdib.c) + - The name DllInit was misleading, and this procedure wasn't being +called whtn the DLL was loaded, so the DLL couldn't know the instance +handle. (gp_mswin.c) + - The code didn't recognize Win32s (vs. Windows 95) correctly. +(dwmain.cpp, gdevwdib.c, gp_mswin.h, gp_mswin.c, gsdll16.rc) + - Some compiler warnings needed fixing. (gdevwdib.c) + - gsdll16.def and gsdll32.def were different. (gsdll32.def) + - A GPF leaving the 16-bit DLL loaded could make the DLL permanently +unusable. (dwmain.cpp) + - Two obsolete files were still included in the fileset. +(gswin.def, gswin32.def) + +Adds a compile-time option to the 'bit' drivers to expand 4-bit pixels to +32-bit. This was required for tracking down customer problems, because the +only tools we have available for displaying CMYK images require 32 bits per +pixel. (gdevbit.c) + +</pre><h3><a name="V3.68p4_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - In DEC C, <time.h> does define the timeval struct. (time_.h) + +Changes gsdll_init() to take an additional argument, a window handle. This +is a NON-BACKWARD-COMPATIBLE change. (dll.doc, dwdll.h, gsdll.h, dwdll.cpp, +dwmain.cpp, dwmainc.cpp, gsdll.c) + +</pre><h3><a name="V3.68p4_Fonts"></a>Fonts</h3><pre> + +Updates more Fontmaps to include the new URW++ fonts. (Fontmap.OS2, +Fontmap.ATM) + +</pre><h3><a name="V3.68p4_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - The default operator array table wasn't big enough. (iinit.c) + - Some signed/unsigned discrepancies caused compilation warnings. +(imain.c, imainarg.c, zfile.c) + +Adds encoding vectors for Windows 3.1 Latin 1, Latin 2, and Latin 5 +encodings. None of these are loaded in the standard configuration. +(gs_wl{1,2,5}_e.ps) + +</pre><h3><a name="V3.68p4_Library"></a>Library</h3><pre> + +Fixes bugs: + - Some tracing output was incorrect or missing. (gxdither.c) + - Resized objects in the C heap had incorrect bookkeeping +information (bug introduced in 3.68). (gsmemory.c) + - Image pixels that fell exactly on device half-pixel boundaries +could get discarded. (gximage0.c) + - The bounding box device didn't set a variable properly and didn't +implement end_image, leading to invalid memory accesses. (gdevbbox.c) + - Fonts with BuildChar routines written in C didn't work properly +with kshow or xyshow. (gschar.c) + +Adds some additional tracing output for Patterns. (gxpcmap.c) + +Adds tracing output for freeing malloc'ed blocks at the end of execution. +(gsmemory.c) + +Adds a gs_dashpath procedure that expands dashes in the same way that +gs_flattenpath expands curves. (gspath.h, gspath1.c) + +</pre> + +<h2><a name="Version3.68p3"></a>Version 3.68 patch 3 (5/17/96)</h2> + +<p> +More bug fixes during the beta test period. AccurateScreens now works +properly. + +<h3><a name="V3.68p3_Procedures"></a>Procedures</h3><pre> +Fixes bugs: + - The help message was too long to fit on a PC screen or standard +terminal. (imainarg.c) + - Failure to run tar_cat wasn't detected. (unix-end.mak, +unixtail.mak) + +</pre><h3><a name="V3.68p3_Utilities"></a>Utilities</h3><pre> +Fixes bugs: + - In the PostScript files produced by pdf2ps, images using ASCII85 +encoding would cause a typecheck error. (gs_pdf.ps) + - pdf2ps wrote out strings longer than 200 characters incorrectly. +(pdf_2ps.ps) + +</pre><h3><a name="V3.68p3_Drivers"></a>Drivers</h3><pre> + +Fixes bugs in gdevcdj.c (according to the author, we have no way to test +this): + - The driver used to use Colors as well as ProcessColorModel to +define the process color model. (devices.doc, gdevbjc.h, gdevcdj.c) + - Incorrect or inconsistent settings of BitsPerPixel and +ProcessColorModel, or setting one but not the other, could leave the driver +in an inconsistent state. (gdevcdj.c) + +Fixes bugs in the MS Windows driver: + - Insufficient memory for the backing bitmap could cause a GPF. +(gdevmswn.c, gdevwdib.c) + - Invalid parameters could cause a crash within the DLL code. +(gdevwdib.c) + +Adds a user-contributed driver for the CalComp Raster Format. (devs.mak, +gdevccr.c) + +Adds an anti-aliasing option for MS Windows. (gdevmswn.c, gdevwdib.c) + +</pre><h3><a name="V3.68p3_Platforms"></a>Platforms</h3><pre> + +Fixes bugs in the Windows platform: + - One had to type "quit" twice to exit. (dwdll.h, dwdll.cpp) + +</pre><h3><a name="V3.68p3_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - Platform fonts didn't work properly if the document's primary +encoding was the standard MS Windows encoding. (ifont.h, gs_wan_e.ps) + - stringwidth with a Type 1 font could give a spurious typecheck +error (bug introduced in 3.65). (zcharout.c) + - If a DOS editor added a ^Z to the end of the Fontmap file, an +error occurred during initialization. (gs_fonts.ps) + - Halftones that didn't specify a value for AccurateScreens +sometimes ignored the setting of the AccurateScreens user parameter. +(zht2.c) + +</pre><h3><a name="V3.68p3_Library"></a>Library</h3><pre> + +Fixes bugs: + - gs_join_none was defined, but not implemented. (gxstroke.c) + - A bookkeeping list for fonts could get confused, causing invalid +memory accesses. (gsfont.c) + - An I/O error or internal error would cause the band list +rasterizer to go into an infinite loop. (gxclread.c) + - The algorithm for choosing screen angles and frequencies produced +poor results. (gshtscr.c) + - Color screens were broken (bug introduced in 3.68). (gxdht.h, +gzht.h, gsht.c, gshtscr.c) + +</pre> + +<h2><a name="Version3.68p2"></a>Version 3.68 patch 2 (5/13/96)</h2> + +<p> +This is another set of patches for the next general release. + +<h3><a name="V3.68p2_Documentation"></a>Documentation</h3><pre> +Fixes bugs: + - Windows NT and Windows 95 implementations were identified as +"under development" rather than available. (README) + - There were several other minor errors in the README file. +(README) + - The claimed current IJG JPEG version was incorrect. (jpeg.mak) + +Splits off information for new users into a separate file. (README, +new-user.doc) + +</pre><h3><a name="V3.68p2_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - gettimeofday takes 2 arguments on SVR4 systems more recent than +SVR4.0. (make.doc, ansihead.mak, cc-head.mak, gcc-head.mak, time_.h) + +Changes the default Unix data installation directory from /usr/local/lib to +/usr/local/share, which seems to be favored by more recent Unix systems +(except for some GNU/Linux versions, which still use /usr/local/lib, and BSD/OS, +which puts Ghostscript in /usr/contrib/lib.) (ansihead.mak, cc-head.mak, +gcc-head.mak, ugcclib.mak) + +Changes the unset commands in the Unix script to assignments, because a few +older Unix shells don't provide unset. (unixtail.mak) + +</pre><h3><a name="V3.68p2_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - An #include incorrectly referred directly to a system header. +(gdevpdft.c) + - CMYK devices took an excessive amount of time clearing the page to +white. (gdevm32.c) + +Adds a compile-time option to the 'bit' drivers to remove top and bottom +whitespace. This change was required in order to track down a customer bug. +(gdevbit.c) + +</pre><h3><a name="V3.68p2_Interpreter"></a>Interpreter</h3><pre> + +Updates the interpreter for the split in the gstate API. (igstate.h) + +</pre><h3><a name="V3.68p2_Streams"></a>Streams</h3><pre> + +Fixes bugs: + - Some compilers don't define NULL widely enough. (spngp.c) + +</pre><h3><a name="V3.68p2_Library"></a>Library</h3><pre> + +Fixes bugs: + - There was a minor typo (& for &&) that didn't affect execution. +(gxccman.c) + - There was a trailing comma in an enumeration. (gsiparam.h) + - Internal and public interfaces weren't separated properly. THIS +IS A NON-BACKWARD-COMPATIBLE CHANGE for clients using certain undocumented +interfaces to the graphics state. (gsstate.h, gxstate.h, gzstate.h, +gsstate.c) + - A 'private' declaration was missing (yet again). (gxclimag.c) + +</pre> + +<h2><a name="Version3.68p1"></a>Version 3.68 patch 1 (5/10/96)</h2> + +<p> +This is the first bug fix (patch) incremental release for the next +general release. + +<h3><a name="V3.68p1_Procedures"></a>Procedures</h3><pre> +Fixes bugs: + - Many Windows-specific files were omitted from the previous +fileset: dw*.rc, dw*.cpp. + +</pre> + +<h2><a name="Version3.68"></a>Version 3.68 (limited) (5/9/96)</h2> + +<p> +This release cleans up the new Windows files, mostly implements the +high-level driver API for bitmap images, and adds practical strip +(AccurateScreens) halftoning. This is the first "serious beta" fileset for +the next general release. It still has more problems than I would have +liked. + +<h3><a name="V3.68_Documentation"></a>Documentation</h3><pre> +Fixes bugs: + - The names of the executable files for MS Windows were out of date. +(make.doc) + - gxcindex.h still referred to "drawing color". (gxcindex.h) + - The name of the default font directory for Unix systems was +incorrect. (make.doc) + +Moves the list of files required for installation, and some other +installation instructions, from make.doc to install.doc. (install.doc, +make.doc) + +Adds a description of the PNGPredictor filters. (language.doc) + +Updates the documentation of the higher-level driver procedures to match the +specification changes. (drivers.doc) + +Documents the change in the Watcom build procedure. (make.doc) + +Improves the documentation of bitmap IDs. (gxbitmap.h) + +Adds documentation for the new strip_tile_rectangle and strip_copy_rop +driver procedures. (drivers.doc) + +Changes the few remaining direct FTP addresses in README to URLs. (README) + +Notes that zlib does not compile correctly on IRIX 6.n with optimization. +(make.doc) + +Adds references to PDF and TrueType fonts to language.doc. (language.doc) + +Updates fonts.doc to remove references to fonts.mak. (fonts.doc) + +Describes how to substitute an LZW compressor for the LZW-compatible +compressor provided in the standard release. (make.doc) + +</pre><h3><a name="V3.68_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - Some lines had exceeded the 120-character limit of the +MS-DOS shell. (int.mak) + - The configuration files weren't generated correctly when CONFIG +wasn't an empty string. (unixhead.mak) + +Factors out shared DLL makefile rules into a new file. (bcwin.mak, +bcwin32.mak, dwcommon.mak) + +Makes the cp and rm commands into makefile parameters, allowing automatic +generation of build scripts even in the MS-DOS and MS Windows environments +where the shell requires the CALL command for sub-scripts. (*.mak, +genconf.c) + +Adds the PDF writer to the default Unix configurations. (ansihead.mak, +cc-head.mak, gcc-head.mak) + +Adds TrueType support to all Level 2 configurations. (int.mak) + +Removes fonts.mak, which is no longer relevant. (fonts.mak) + +Brings the font compilation procedures up to date. (cfonts.mak, int.mak) + +</pre><h3><a name="V3.68_Utilities"></a>Utilities</h3><pre> + +Fixes bugs: + - There was an extra 'show' in one file. (align.ps) + +</pre><h3><a name="V3.68_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - The bit devices were missing the map_color_rgb procedure. +(gdevbit.c) + - The MS Windows driver sent a redundant message. (gdevmswn.c) + +Adds a device that keeps track of the page bounding box. This device is not +included in any standard configuration. (drivers.doc, gdevbbox.h, +gsmatrix.h, gsstruct.h, gxdevice.h, gdevbbox.c, gdevnfwd.c, gsmatrix.c) + +Updates the PDF writer to track the changes in the high-level driver API, +and to write out images in a reasonable way. NOTE: the current +implementation doesn't write out CIE color space parameters, so CIE-color +images won't be colored accurately. (gdevpdf.c, gdevpdfi.c) + +Adds a forwarding procedure for tile_rectangle. (gxdevice.h, gdevnfwd.c) + +Changes the copyright notices on the PDF writer to be the same as on the +rest of Ghostscript. (gdevpdf*.[ch]) + +Updates Gunther Hess's Epson Stylus Color driver from 1.21 to 1.90. (Aladdin +Enterprises takes no responsibility for this driver: if you have questions, +contact the author.) (devices.doc, devs.mak, gdevstc*.c, gdevstc.h) + +</pre><h3><a name="V3.68_Platforms"></a>Platforms</h3><pre> + +Removes some obsolete MS Windows files and #defines. (gp_mswtx.h, +gp_mswtx.c, gp_mswin.h) + +Works around a memory limitation in the Watcom make utility. (wmakebat.bat) + +</pre><h3><a name="V3.68_Fonts"></a>Fonts</h3><pre> + +Changes the standard Fontmap from using the low-quality fonts converted from +bitmaps to using high-quality fonts recently contributed by URW++. +(Fontmap, Fontmap.GS) + +</pre><h3><a name="V3.68_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - A macro containing an if-else, and a macro generating a compound +statement, could cause incorrect grouping of 'if' statements. (files.h, +ostack.h) + - .setrasterop didn't pop its operand. (zrop.c) + - A rounding inaccuracy could cause bounding box rangecheck errors. +(gsdps1.c) + - CIE-based images in PDF files didn't work. (gs_pdf.ps) + - The page parameter .MediaSize didn't get updated when PageSize was +set. (This is just the most recent manifestation of the setpagedevice +morass.) (gs_setpd.ps) + - %lineedit and %statementedit were limited to 160 characters. +(zfileio.c, ziodev.c) + - Compiled initialization files didn't work properly. (geninit.c, +gs_l2img.ps) + - Attempting to parse a command line with argc = 0 caused a crash. +(imainarg.c) + +Renames some files to allow separating the non-DLL 'main' procedure into a +separate file, and to make the file naming more consistent: + gs.c (except for 'main') => imainarg.c + gsmain.c => imain.c +gs.c now consists only of 'main'. The name gs.c is still inconsistent (it +should be i- something), but at least it's consistent with the name of the +executable. (*.mak, imain.h, iminst.h, imainarg.h, gs.c, gsmain.c, imain.c, +imainarg.c) + +Adds PNGPredictorEncode/Decode filters, and increases the size of filterdict +slightly to make room for them. (iinit.c, zfpngp.c) + +Makes zwrite external, per a customer request. (opextern.h, zfileio.c) + +Updates clients to work with the new API-based bitmap imaging calls. +(iimage.h, zcolor1.c, zimage2.c, zpaint.c) + +Updates clients for the split in gscspace.h. (zcie.c, zcolor1.c, zcolor2.c, +zcsindex.c, zcssepr.c, zimage2.c, zpaint.c, zpcolor.c) + +Updates clients for strip-based halftones. (zpcolor.c) + +Updates the initialization code to pass the correct (system) allocator to +the library initialization. (imain.c) + +</pre><h3><a name="V3.68_Streams"></a>Streams</h3><pre> + +Fixes bugs: + - If a filter reached EOD exactly at the end of reading data for +certain operations, it didn't get closed automatically. (stream.c) + - The LZW-compatible encoding filter reset procedure had an +incorrect return type. (slzwce.c) + +Changes the ASCIIHexEncode filter to insert \ns in fewer places, to be +somewhat more compatible with the Adobe implementation. (sstring.c) + +Adds PNGPredictorEncode/Decode filters that implement the pixel prediction +algorithms in the PNG specification. (We'd like to use the code in the PNG +library, but it's too deeply embedded in the rest of the PNG machinery, and +it also doesn't provide for suspendable I/O.) (spngpx.h, spngp.c) + +</pre><h3><a name="V3.68_Library"></a>Library</h3><pre> + +Fixes bugs: + - A test for pure color was backwards, causing garbage output or +possible address or floating point exceptions. (gxclpath.c) + - A macro containing an if-else could cause incorrect grouping of +'if' statements. (gsrefct.h) + - The default implementation of RasterOp didn't handle the device +depth correctly. (gdevmrop.c) + - The memory device implementation of RasterOp truncated 24-bit +constant source or texture values to 8 bits. (gdevmrop.c) + - A typo caused the garbage collector to miss an internal buffer +used when rendering images. (gximage.h) + - gs_debug_out was only defined if DEBUG was set. (gdebug.h) + - The raster of horizontally replicated tiles was incorrect. +(gxht.c) + - A data type might not be declared, causing a compilation error. +(gscoord.h) + - Empty TrueType glyphs weren't handled properly. (gstype42.c) + - Fonts with a build procedure written in C could cause an invalid +memory access. (gschar.c) + - The initial point of a band list path sometimes didn't get +written, causing excess or missing filled regions. (gxclpath.c) + - Characters between 49 and 56 bits wide were rendered incorrectly +when banding. (gxclbits.c) + +Renames gsimage*.c as gximage*.c, to reflect more accurately the position of +these files in the architecture. (gsimage*.c, gximage*.c) + +Fully implements the high-level bitmap image calls in the driver API. This +includes some driver API changes; however, this part of the API was clearly +documented as not stable enough to rely on. (gxdevice.h, gximage.h, +gdevbbox.c, gdevddrw.c, gdevnfwd.c, gsimage.c, gximage*.c) + +Splits the color space header into client and implementation, as with many +others. (gscspace.h, gxcspace.h, gximage.h, gscie.c, gscolor.c, gscolor1.c, +gscolor2.c, gscsepr.c, gsimage.c, gspcolor.c, gsstate.c, gxcmap.c, +gxpcmap.c) + +Extends band lists to handle high-level images. NOTE: This facility is +patched out because there is not yet a way to pass the necessary color +rendering information through the band list. (gxcldev.h, gxclist.h, +gxclpath.h, gxclimag.c, gxclist.c, gxclpath.c, gxclread.c) + +Implements fixed2float and float2fixed more efficiently on machines with +slow floating point. (gxfixed.h, gscoord.c, gsmisc.c) + +Makes one further NON-BACKWARD-COMPATIBLE change in the existing +higher-level driver procedures (fill_path, stroke_path, fill_mask): we make +the imager state pointer an explicit argument, rather than a member of the +gx_fill/stroke_params structure. We now consider the specification of these +procedures stable, and have removed the "subject to change" notice from the +documentation. (gxdevice.h, gxpaint.h, gdevbbox.c, gdevnfwd.c, gxacpath.c, +gxclpath.c, gxclread.c, gxfill.c, gxpaint.c, gxstroke.c) + +Extends halftone bitmaps to include "strip" and "shift" information, +allowing halftone cells with arbitrary angles to be stored in space +proportional to the number of bits in the cell rather than the square of the +number of bits. This requires adding new (optional) strip_tile_rectangle +and strip_copy_rop driver procedures that are like tile_rectangle and +copy_rop respectively but accept a strip bitmap rather than an ordinary +tile; these procedures supersede tile_rectangle and copy_rop (although these +also remain, defined in terms of the new ones). This also requires making +small but NON-BACKWARD-COMPATIBLE changes in several internal interfaces. +(gdevmem.h, gdevprn.h, gsdcolor.h, gxbcache.h, gxbitmap.h, gxcldev.h, +gxclip2.h, gxclist.h, gxdevice.h, gxdevrop.h, gxdht.h, gxfcache.h, +gxhttile.h, gxpcolor.h, gzht.h; gdevabuf.c, gdevbbox.c, gdevdflt.c, +gdevm*.c, gdevmpla.c, gdevmrop.c, gdevnfwd.c, gsht.c, gsht1.c, gshtscr.c, +gspcolor.c, gsstate.c, gxcht.c, gxclbits.c, gxclip2.c, gxclist.c, +gxclpath.c, gxclread.c, gxcpath.c, gxdcolor.c, gxdither.c, gxht.c, +gximage2.c, gxpcmap.c, ...) + +Adds "no join" as a line join type. NOTE: this is not actually implemented +yet. (gslparam.h) + +Changes the initialization code so that it passes the system allocator as an +argument to module initialization procedures. While this is theoretically a +NON-BACKWARD-COMPATIBLE change, module initialization procedures are not +documented and presumably are not used by any code outside the +implementation. (gscdefs.h, gconf.c, gdevmrop.c, gsinit.c, gxclimag.c, +gxclpath.c) + +Splits up gs_lib_init into two procedures, allowing specification of a +different default allocator for the library. (gslib.h, gsinit.c) + +Adds a resize_object operation to the allocator API. (gsmemory.h, +gsalloc.c, gsmemory.c) + +</pre> + +<h2><a name="Version3.67"></a>Version 3.67 (limited) (4/12/96)</h2> + +<p> +This release restructures the MS Windows and OS/2 code to be primarily DLL- +rather than EXE-based. See under Platforms below for more news. This +release was put out in a hurry in order to get the new DLL code into +testers' hands; it has more rough edges than usual. + +<h3><a name="V3.67_Documentation"></a>Documentation</h3><pre> +Fixes bugs: + - A definition & use comment was incorrect. (scanchar.h) + - William Bader's e-mail address was wrong. (README) + +Adds documentation for the new begin_image, image_data, and end_image +procedures. THIS INTERFACE IS STILL SUBJECT TO CHANGE. (drivers.doc) + +</pre><h3><a name="V3.67_Procedures"></a>Procedures</h3><pre> + +Renames all the *core.dev modules as *lib.dev. (int.mak, *lib.mak, vms.mak, +gdevmrop.c) + +Updates all the remaining makefiles to IJG JPEG version 6a. (*.mak) + +Moves the configuration parameter definitions from gconf.c to a new file +gscdefs.c. (bcwin*.mak, *lib.mak, gs.mak, int.mak, lib.mak, unixtail.mak, +vms.mak, gconf.c, gscdefs.c) + +</pre><h3><a name="V3.67_Platforms"></a>Platforms</h3><pre> + +Restructures the MS Windows and OS/2 code to be primarily DLL- rather than +EXE-based. This involves two minor NON-BACKWARD-COMPATIBLE changes to the DLL +interface, documented near the end of dll.doc: + + - Adding argv and argc as arguments to gsdll_init. + + - Adding a new message type, GSDLL_POLL, to the callback procedure. + +(bcwin*.mak, devs.mak, os2.mak, dll.doc, install.doc, dw*.*, gsdll*.*, +gdevms*.*, gdevpm.c, gdevw*.c, gp_mswin.c, gp_os2.c, gsos2.def, gswin.rc) + +Adds the BMP drivers to the Watcom platform. (watc.mak) + +</pre><h3><a name="V3.67_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - gs.c assumed the presence of stdio. (gs.c) + +Defines a new API entry point that is the equivalent of command line +invocation. (imain.h, imainarg.h, gs.c) + +Changes clients to conform to the changes in gsimage.h. (zimage2.c, +zpaint.c) + +Speeds up the search operator slightly. (zstring.c) + +</pre><h3><a name="V3.67_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre> + +Fixes bugs: + - If the PDF interpreter was present, running a PostScript file +didn't close the file properly if it caused an error. (pdf_main.ps) + +Speeds up embedded font loading by making an internal buffer bigger. +(pdf_font.ps) + +</pre><h3><a name="V3.67_Library"></a>Library</h3><pre> + +Fixes bugs: + - There could be some non-zero garbage between the width and the +next multiple of bitmap_align_mod for copy_alpha. (The driver API +specification explicitly allows this, but it upset one customer.) +(gxccman.c) + - Nibble-swapped alpha values could be displaced in memory by one +pixel, damaging the output. (gdevabuf.c) + +Makes further changes towards adding high-level bitmap image calls to the +driver API. This includes the following minor NON-BACKWARD-COMPATIBLE +changes to the interface defined in gsimage.h: + + - changing MultipleDataSources from a member of the gs_image_t + structure to an argument of gs_image_init; + + - changing the default image parameter values from constant + structures to procedures that initialize the structure. + +As far as we know, this doesn't affect any existing client code. +(gsimage.h, gsiparam.h, gxdevice.h, gdevddrw.c, gdevnfwd.c, gsimage.c, +gspcolor.c, gxccache.c) + +Removes an unnecessary level of call for path filling. (gxpaint.h, +gxfill.c, gxpaint.c) + +</pre> + +<h2><a name="Version3.66"></a>Version 3.66 (limited) (4/8/96)</h2> + +<p> +This release adds support for TrueType fonts and Type 42 (encapsulated +TrueType) PostScript fonts. The MS Windows driver now interacts properly +with the garbage collector. This release also includes a new, high-quality +set of free fonts. + +<h3><a name="V3.66_Documentation"></a>Documentation</h3><pre> +Fixes bugs: + - The list of generic makefiles had gotten out of date. (make.doc) + +Adds a mention of the bmv program, created by a user and available under the +GPL. (README) + +Notes that a bug in gcc 2.7.x prevents these versions from compiling +Ghostscript. (make.doc) + +Clarifies the meaning of "inverted" masks. (gsimage.h) + +Improves the documentation of the stack sizing parameters. (interp.c) + +Improves the documentation of the copy_rop driver procedure. +(drivers.doc) + +Notes that all subclasses of gx_device must explicitly include the +device_finalize finalization procedure. (gxdevice.h) + +Updates the documentation of the high-level driver API to reflect the change +in gx_drawing_color, and the addition of the new polygon and image drawing +procedures. (drivers.doc) + +Updates the documentation for building zlib and libpng. (make.doc) + +</pre><h3><a name="V3.66_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - The environment space overflowed on some inferior Unix systems. +(unixtail.mak) + +Adds a ttfont.dev "feature" for including the TrueType interpreter and the +ability to handle Type 42 fonts. A new procedure, .loadttfont, allows +loading a TrueType font directly (by converting it to a Type 42 on the fly). +(gs.mak, int.mak, lib.mak) + +Updates the makefiles and procedures to libpng 0.88 and zlib 1.0. +(libpng.mak, zlib.mak) + +</pre><h3><a name="V3.66_Utilities"></a>Utilities</h3><pre> + +Fixes bugs: + - pdf2ps could produce lines longer than 255 characters. +(pdf_2ps.ps) + +Removes some unnecessary and error-inviting code from pdf2dsc. (pdf2dsc.ps) + +Updates lines.ps to test the new stroke code more fully. (lines.ps) + +Allows omitting the second argument of ps2pdf, as for ps2epsi. (ps2pdf) + +</pre><h3><a name="V3.66_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - A routine was incorrectly declared "private". (I wish gcc caught +this!) (gdevpdf.c) + - A 'const' was omitted in a parameter list. (gdevpdfp.c) + - Some imported procedures didn't have prototypes declared. +(gdevpdft.c) + - The ProcSet list for PDF files didn't include Text when it was +needed. (gdevpdfx.h, gdevpdf.c, gdevpdft.c) + - Text in PDF output ignored the color setting. (gs_pdfwr.ps, +gdevpdft.c) + - Text in PDF output could be positioned incorrectly. (gdevpdft.c) + - pdfmarks could produce an error when producing PDF output. +(gs_pdfwr.ps) + +Slightly improves the text output of the PDF writer. (gs_pdfwr.ps, +gdevpdft.c) + +Defines driver procedures for filling trapezoids (with the parallel edges +parallel to a coordinate axis), parallelograms (with arbitrary orientation), +triangles (ditto), and minimum-width lines (ditto). (Note that the last of +these obsoletes the former draw_line procedure.) (gdevmem.h, gdevprn.h, +gxdevice.h, gxdraw.h (deleted), gdevddrw.c, gdevdflt.c, gdevht.c, +gdevnfwd.c, gsimage[12345].c, gxacpath.c, gxclist.c, gxclip2.c, gxcpath.c, +gxdraw.c (deleted), gxfill.c, gxpcmap.c, gxstroke.c) + +Adds "sketched" driver procedures for high-level bitmap / pixmap image +drawing. In this release, the argument lists are incomplete, and the +procedures are stubs: don't try to use them! [see previous entry] + +Changes the screen update strategy for the X Windows driver from a +compile-time option to a settable run-time variable. (gdevx.c) + +Patches around a problem with libpng 0.88 that can't be fixed without +editing a configuration file. (gdevpng.c) + +</pre><h3><a name="V3.66_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - %g formats with sscanf don't work on NeXT systems. (gdevpdft.c, +iutil.c, zdouble.c) + - getenv could be declared inconsistently. (gp_unix.c) + +</pre><h3><a name="V3.66_Fonts"></a>Fonts</h3><pre> + +Fixes bugs: + - The Type 1 font interpreter sometimes set the flatness too large. +(gstype1.c) + - Fonts defined by definefont could never be garbage collected. +(gsstruct.h, gxfcache.h, gxfont.h, gxfont0.h, gxfont1.h, gsfont.c, +gsfont0.c) + - Type 0 fonts weren't garbage collected properly. (gsfont0.c) + - Compiled fonts caused a compilation error (bug introduced in +3.65). (ifont.h) + - If a Type 1 font used hint replacement, hints could be applied +more than once, distorting the character shape. (gxtype1.h, gxhint3.c) + - Oversampling wasn't applied to large enough characters. +(gschar.c) + +</pre><h3><a name="V3.66_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - The scanner accepted /[, /], /<<, and />> as literal names (and +similarly for //). It isn't obvious from the Red Book, but the Adobe +implementations don't accept these. What a nuisance! (gs_btokn.ps, +gs_init.ps, pdf_2ps.ps, pdf_base.ps, pdf_main.ps, iscan.c) + - A spurious stackoverflow could occur under unusual conditions. +(istack.c) + - The values of OrigFont and ScaleMatrix in scaled fonts reflected +only the most recent scaling operation, not the original font and the +combined scaling operation. (zfont.c) + - The default size of systemdict had become slightly too small. +(iinit.c) + - Type 1 characters defined by PostScript procedures were called +incorrectly. (zcharout.c) + +Removes the papersize operator from statusdict, since it is not documented +anywhere in the Adobe literature and didn't interact properly with the +various ways of setting the page size. (gs_statd.ps) + +Changes the one client of sskip to match the changed API. (zpaint.c) + +Changes clients to reflect the creation of sstring.h. (iscan.h, zfilter.c) + +Adds PSStringEncode as an accessible filter. (zfilter.c) + +Adds support for TrueType and Type 42 fonts. (gs_fonts.ps, gs_ttf.ps, +gs_typ42.ps, bfont.h, icharout.h, ifont.h, zchar1.c, zchar42.c, zcharout.c, +zfont1.c, zfont2.c, zfont42.c) + +Adds a few ANSI sheet sizes (commented out, for documentation only). +(gs_statd.ps) + +</pre><h3><a name="V3.66_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre> + +Fixes bugs: + - Clients who called pdfopen/close rather than runpdf could get an +error (PSLevel1 undefined). (pdf_main.ps) + - Some masked images were displayed with black and white inverted. +(gs_pdf.ps) + - In Level 1 output produced by pdf2ps, images caused a syntaxerror. +(gs_pdf.ps) + - If a PDF file had multiple xref sections and later sections added +new objects, an error occurred. (pdf_main.ps) + - Some very old Level 1 interpreters couldn't deal with a file +object embedded in a procedure. (gs_pdf.ps) + +</pre><h3><a name="V3.66_Streams"></a>Streams</h3><pre> + +Fixes bugs: + - The PSStringEncode filter didn't always produce printable 7-bit +output. (sstring.c) + - The CCITTFaxDecode filter didn't implement DamagedRowsBeforeError. +(scfx.h, scfd.c) + - Interpolated images displayed nothing if the data stream ended +before the image height was reached. (siscale.h, gsimage5.c, siscale.c) + +Changes the sskip stream procedure so that it takes an additional argument +where it returns the actual number of bytes skipped. THIS IS A +NON-BACKWARD-COMPATIBLE CHANGE in the API. However, as far as we know, +there are no external clients of this procedure. (stream.h, stream.c) + +Splits up sfilter.h so that the headers correspond more directly with the +implementations. (sfilter.h, sstring.h, sstring.c) + +</pre><h3><a name="V3.66_Library"></a>Library</h3><pre> + +Fixes bugs: + - The default device in the library configuration was device 1, not +device 0. (bclib.mak, ugcclib.mak, watclib.mak, gslib.c) + - Patterns could be rendered with small gaps between them. +(gspcolor.c) + - Large characters could render inaccurately because of a numerical +boundary condition. (gxpcopy.c) + - The show_gstate pointer in the graphics state was not managed +properly, possibly leading to dangling pointers or GC errors. (gsstate.c) + - Bitmaps could get shifted to the left if ALPHA_LSB_FIRST was +selected (bug introduced in 3.53). (gsbitops.c) + - The garbage collector could move devices in memory, causing +problems with command list devices. (gxdevice.h, gsdevice.c) + +Continues restructuring the image handling code in preparation for adding a +high-level driver operation. (gsimage[12345].c) + +Starts to implement passing color mapping information (transfer function, +black generation, undercolor removal, CRD, halftoning) in the band list. +(gxfmap.h, gscolor.c, gscolor1.c, gsht1.c, gsstate.c) + +Speeds up the path filling code a little more. (gxdraw.c) + +Removes the workaround for the gcc 2.7.0/1/2 optimizer bug, since this +turned out to cause more trouble than it was worth. (stdpre.h) + +Speeds up stroking dramatically for the case of butt or square caps, bevel +or beveled miter joins, and no fill adjustment, by filling parallelograms +and triangles directly rather than constructing and filling paths. This is +an important common case for CAD drawings. (gxdraw.h, gxdraw.c, gxstroke.c) + +Adds support for TrueType and Type 42 fonts. (gxfont.h, gxfont42.h, +gstype42.c) + +Extends the memory manager to allow allocating objects that the garbage +collector won't move. THIS IS A NON-BACKWARD-COMPATIBLE CHANGE for +implementors of memory managers, but clients aren't supposed to have any of +these. (gsmemory.h, gsmemory.c, gsalloc.c) + +Makes dynamically created instances of registered devices immovable. +(gsdevice.c) + +Unifies gx_drawing_color with (makes it equivalent to) gx_device_color. +THIS IS A NON-BACKWARD-COMPATIBLE CHANGE for implementors of the +higher-level driver procedures (fill_path, stroke_path, fill_mask). We +regret that this was necessary, but the documentation in drivers.doc does +warn the reader: "DO NOT ASSUME THESE OPERATIONS WILL REMAIN UNCHANGED IN +FUTURE RELEASES." These three procedures, at least, should now be stable. +(gsdcolor.h, gxcindex.h, gxdcolor.h, gxdevice.h, gximage.h, gxpaint.h, +gxpcolor.h, gdevdflt.c, gdevpdf.c, gdevpdfi.c, gdevxalt.c, gsimage.c, +gsimage2.c, gspcolor.c, gxacpath.c, gxccache.c, gxcht.c, gxclpath.c, +gxclread.c, gxdcconv.c, gxdither.c, gxfill.c, gxdraw.c, gxht.c, gxpaint.c, +gxpcmap.c, gxstroke.c) + +</pre> + +<h2><a name="Version3.65"></a>Version 3.65 (limited) (3/9/96)</h2> + +<p> +This release adds garbage collection for device instances. ****** NOTE: +Because of changes in memory management, if you are using the MS Windows +driver (mswin), you must run with -dNOGC. This is a temporary problem which +will be fixed before the next beta release. + +<h3><a name="V3.65_Documentation"></a>Documentation</h3><pre> +Documents the C API equivalent of a -d switch for setting a flag like +NOPAUSE. (imain.h) + +Splits off the NEWS entries for versions 3.0 through 3.33 into a new +file. (history3.doc) + +Adds a man page for ps2pdf. (ps2pdf.1) + +Documents the new memory management aspects of device drivers, and corrects +many other aspects of driver documentation that had become inaccurate. +(drivers.doc) + +Updates the documentation for the gs_*.ps files. (psfiles.doc) + +Replaces .type1addpath with .type1execchar. (language.doc) + +Adds some more documentation on how band lists do read/write switching. +(gxclist.h) + +Adds a reference to the new Genscript program, a free Ghostscript-based +replacement for enscript. (README) + +Notes that no further changes will be accepted for the gdevcdj.c file, which +has gotten completely out of hand. (gdevcdj.c). + +Documents the TextAlphaBits and GraphicsAlphaBits device parameters. +(language.doc) + +</pre><h3><a name="V3.65_Procedures"></a>Procedures</h3><pre> +Fixes bugs: + - gs_pdfwr.ps and pdf2ps.1 weren't installed on Unix systems. +(unix-end.mak) + - The pdf2ps shell script didn't accept any options. (pdf2ps) + - The rule for srle.$(OBJ) incorrectly specified a dependency on +srld.c. (lib.mak) + - The rule for command lists didn't include stream.$(OBJ). +(lib.mak) + - The stack size for one configuration was set too small. +(watclib.mak) + +Speeds up genconf by eliminating redundant file reading and processing. +(genconf.c) + +Moves the pixel-difference filters from int.mak to lib.mak. (int.mak, +lib.mak) + +Moves the library parts of the HSB color and Level 1 path (arcs, pathbbox, +path enumeration) options from int.mak to lib.mak, and adds them to the +library makefiles. (int.mak, lib.mak; bclib.mak. ugcclib.mak, watclib.mak) + +</pre><h3><a name="V3.65_Utilities"></a>Utilities</h3><pre> + +Fixes bugs: + - pdf2ps would fail if it encountered a font with a standard +encoding. (pdf_2ps.ps) + +Adds new switches to pdf2ps: + -dPSBinaryOK allows writing binary image data in the output. +(pdf_2ps.ps) + -dPSLevel1 forces Level 1 compatible output. (int.mak, +unix-end.mak, gs_l2img.ps, gs_pdf.ps, pdf_2ps.ps, pdf_main.ps) + -dPSNoProcSet causes the ProcSet to be loaded at run time, not at +conversion time -- primarily useful for debugging. (pdf_2ps.ps) + +Adds a utility for viewing PCX files, so we can preview high-resolution +output in a reasonable compressed format. (unix-end.mak, viewpcx.ps) + +</pre><h3><a name="V3.65_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - Some compilers require an extra #include to define structures even +if they are only referenced by pointers. (int.mak, gdevpdf.c, gdevpdfp.c) + - A procedure name was duplicated. (gdevpdfi.c) + - A pdfmark between a gsave and a grestore could cause a +rangecheck error. (gdevpdfp.c) + - A pdfmark between a gsave and a grestore could cause the +grestore to do an inappropriate initgraphics. (gs_pdfwr.ps) + - The pdfwrite driver could reinitialize the output file +unpredictably. (gdevpdfp.c) + - The PCX drivers didn't clear padding bytes at the ends of scan +lines. (gdevpcx.c) + - The PCX drivers didn't set the "version" field correctly (this was +OK in 2.6.1, bug introduced sometime since then). (gdevpcx.c) + - Whoever last touched the color inkjet drivers completely broke the +handling of the BitsPerPixel parameter, again. We were able to half-fix it, +but the code is impossible to understand, let alone modify safely. +(gdevcdj.c) + - Anti-aliased characters didn't work with banding. (gxclpath.c) + - The PGM/PPM drivers didn't recognize black-and-white pages for +optimization to PBM, only gray or colored. (gdevpbm.c) + - The color inkjet drivers initialized the params_size field of the +static instance incorrectly, resulting in garbage in the last few structure +members when instances were copied. (gdevcdj.c) + - The 24-bit PCX driver didn't pad each scan line to an even number +of bytes. (gdevpcx.c) + - The svga16 driver initialized its procedures incorrectly. +(gdevpcfb.c) + +Adds text writing capability to the PDF writer. In its present form, this +is a very bad hack: it only works for the 14 built-in fonts with their +standard encodings. (gdevpdfx.h, gdevpdf.c, gdevpdfp.c, gdevpdft.c) + +Adds garbage collection and finalization for device instances (gscdefs.h, +gsdevice.h, gxdevice.h, gconf.c, gdevmrop.c, gsdevice.c, gslib.c, gsmain.c). +(See the "Driver instance allocation" section of drivers.doc for more +details about what is required to make this work.) + + - When an open device is freed (explicitly, by garbage collection, +or by 'restore'), if the device was allocated dynamically by Ghostscript's +standard allocator, the device's close procedure will be called. THIS IS A +NON-BACKWARD-COMPATIBLE CHANGE for dynamically created devices, which +formerly were not closed automatically, even when Ghostscript exited. + + - Device instances allocated in GC-able space will be traced +like other objects, assuming they have proper structure descriptors. + +Provides a (very slow but correct) default implementation of copy_alpha. +(gxcindex.h, gdevdflt.c, gsimage4.c) + +Removes the implementation of copy_alpha in gdevpbm.c, since this is now +implemented (more efficiently) in gdevm24.c. (gdevpbm.c) + +Adds TextAlphaBits and GraphicsAlphaBits as readable parameters for all +devices. (gsdparam.c, gdevpbm.c, gdevsvga.c) + +</pre><h3><a name="V3.65_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - There were some attempts to coerce long to short pointers +on segmented platforms. (gsdparam.c, gstype1.c) + - The stack could overflow on the 16-bit MS Windows platform. +(gxfill.c, gxclread.c) + - The DLL callback parameter for window resize events was computed +incorrectly on 16-bit systems. (gdevwdib.c) + - A file included gxdevice.h unnecessarily. (bcwin.mak, +bcwin32.mak, msvcwint.mak, gp_mswin.c) + +</pre><h3><a name="V3.65_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - Storing into a read-only dictionary with def or store was +allowed. (dstack.h) + - If the interpreter allocated extra space for a dictionary +to round its storage size up to a power of 2, it was possible for +length to exceed maxlength. (idict.c, iinit.c) + - The if and ifelse operators didn't check that their +'procedure' arguments were actually procedures. (interp.c, zcontrol.c) + - The undef operator was defined even in Level 1 +configurations. (We need this capability for all configurations, so +we always define .undef.) (zdict.c, gs_*.ps, pdf_*.ps) + - In Level 1 configurations, copying a dictionary should copy the +access attributes, but it didn't. We have to work around this +compatibility quirk in a lot of places. (gs_cidfn.ps, gs_cmap.ps, +gs_dps1.ps, gs_fonts.ps, gs_init.ps, gs_l2img.ps, gs_lev2.ps, gs_pdf.ps, +gs_pfile.ps, gs_res.ps, gs_setpd.ps, gs_type1.ps, zdict.c) + - DSC comments that crossed a buffer boundary didn't call the +scan_dsc_proc. (iscan.c) + - "statusdict /setpage get exec" caused an error. (gs_statd.ps) + - The default size of systemdict had become slightly too small. +(iinit.c) + - Doing a showpage or copypage would cause the equivalent of a +setpagedevice at the next restore or grestore. We aren't entirely sure that +the fix we made doesn't have bad side-effects. (gs_setpd.ps) + - Not all filters accepted (and ignored) an optional dictionary +parameter on the stack. (ifilter.h, zfbcp.c, zfdecode.c, zfilter.c, +zfilterx.c, zfzlib.c, zmisc1.c) + - The PixelDifference filters required a Columns parameter, rather +than defaulting it to 1. (spdiffx.h, zfdecode.c) + - Contrary to the NEWS entry for release 3.60, the LZW filters did +not implement pixel differencing. (zfdecode.c, zfilter2.c) + - readstring with a 0-length string didn't signal a rangecheck. +This doesn't make a lot of sense to me, but it's what the Adobe +documentation specifies. Unfortunately, we have to work around this in a +number of places that assumed the sensible definition (return () true +without reading anything). (gs_l2img.ps, pdf_font.ps, zfileio.c) + - Encoded number strings didn't work (bug introduced in 3.64). +(ibnum.c) + - The allocator could produce spurious "free large 0x...... chunk +not found" messages. (These didn't cause any harm, but they were +disturbing.) (gsalloc.c) + +Changes the default transfer function for high-resolution devices so +that it is the identity function if the device is continuous-tone. +(gs_init.ps) + +Undoes the "subversion" of zgetdevice noted in release 3.61, since it +is now possible to copy devices safely. (zdevice.c) + +Changes the implementation of the garbage collector and restore so that +object finalization code may safely free objects. (igc.c, isave.c) + +Reimplements essentially all of Type 1 BuildChar in C. (gs_init.ps, +gs_type0.ps (deleted), gs_type1.ps, ifont.h, zchar.c, zchar1.c, zfont.c) + +Reimplements DISKFONTS as a separate feature (diskfont.dev), and changes it +to use Type 4 fonts rather than special machinery. Currently this feature +is included only in the makefiles for 16-bit architectures. (bc.mak, +bcwin.mak, int.mak, tc.mak, gs_diskf.ps, gs_fonts.ps, gs_type1.ps) + +Converts the library search path from a list of strings to a (PostScript) +array of strings, one string per directory. (iminst.h, main.h, gs.c, +gsmain.c, zfile.c) + +Adds a hook procedure scan_comment_proc for processing all comments, +similar to scan_dsc_proc. If both are set, scan_comment_proc is used only +for non-DSC comments. (iscan.h, iscan.c) + +</pre><h3><a name="V3.65_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre> + +Fixes bugs: + - Encrypted PDF files produced a random error (usually ioerror in +--token--) rather than a meaningful message. (pdf_main.ps) + - Color space setting didn't work. (gs_pdf.ps) + - The algorithm for skipping a possible blank line following the +'stream' keyword wasn't robust enough. (We aren't sure the new algorithm is +exactly right, either.) (pdf_base.ps) + +Gets rid of the special handling of the LZW decoding filter, since the +filter itself now handles the Predictor facility. (pdf_base.ps) + +</pre><h3><a name="V3.65_Streams"></a>Streams</h3><pre> + +Fixes bugs: + - Configurations with LZW encoding but not decoding had an +undefined reference. (lib.mak, slzwc.c, slzwd.c) + - The LZW-compatible encoder didn't provide a 'reset' procedure. +(slzwce.c) + - The PixelDifference filters didn't work for most parameter +combinations in which each pixel took up more than 1 byte. (spdiff.c) + - Temporary write streams could cause an infinite loop. (We only +need such streams for the Predictor = 2 case of LZWEncode: this is why the +bug never showed up before.) (stream.c) + +Adds an optional reinitialization procedure to the stream template. Note +that this is not the same as the PostScript 'reset' operation or the stream +resetting operation invoked by sreset: the reinit procedure in the template +reinitializes any internal state of the encoder or decoder without affecting +buffered data. (scommon.h, strimpl.h, sbcp.c, sbhc.c, slzwce.c, slzwd.c, +slzwe.c, smtf.c, spdiff.c, srle.c) ****** NOT DONE YET: sbwbs.c, szlibd.c, +szlibe.c + +Adds a decoding stream for the run-length compression used in PCX. +(spcxx.h, spcxd.c) + +</pre><h3><a name="V3.65_Library"></a>Library</h3><pre> + +Fixes bugs: + - A recent edit introduced an extraneous right parenthesis. +(gpcheck.h) + - A minor nit in a macro could cause incorrect grouping of 'if' +statements under implausible conditions. (gsmdebug.h) + - The first data plane buffer of an image enumerator didn't get +marked during garbage collection. (gsimage.c) + - The Watcom C compiler required splitting up a declaration. +(gxcmap.h) + - The extern declarations for the tables in gconf.c weren't gathered +together in one place. (gscdefs.h, gxiodev.h, gconf.c, gsdevice.c, gslib.c, +gsinit.c, gsiodev.c) + - charpath and show produced different output. We fixed this by +undoing a "bug fix", introduced in version 2.9, which suppressed hinting and +coordinate rounding for charpath; we aren't sure this won't cause some +obscure problems to reappear. (gstype1.c) + - Clipping with a rectangle usually created a 3-rectangle clipping +list, slowing down all drawing operations (performance bug only). +(gxacpath.c) + - stroking in a rotated coordinate system sometimes thought lines +were always thin when they actually weren't. (gxstroke.c) + - An unsigned quantity wasn't properly converted to signed, possibly +causing band path coordinates to get mangled. (gxclread.c) + - A bug in the Borland compiler caused an unsigned quantity to be +interpreted as signed, causing band path coordinates to get mangled. +(gxclread.c) + +Changes structure type pointers on 16-bit segmented systems to full +32-bit pointers. This will increase time and space requirements very +slightly on these systems. (gsmemory.h, gxobj.h) + +Changes the memory manager so that object finalization code may safely free +objects. (gsmemory.h, gsstruct.h, gsalloc.c, gsmemory.c) + +Refactors the Type 1 CharString interpreter so it can be included in +the imager library. (gstype1.h, gxtype1.h, gstype1.c) + +Starts to refactor the implementation of band lists in memory so that it can +use any encoding/decoding filter. Currently this choice is made at compile +time, but it could easily be made dynamic. (gxclmem.h, gxclmem.c) + +Starts to refactor image rendering so that, like path filling and stroking, +it only uses imager state and can be done after banding. (gxcmap.h, +gxdraw.h, gximage.h, gsimage*.c, gxcmap.c) + +Speeds up copy_mono for 2-bit-per-pixel devices a little. (gdevm2.c) + +Implements an optimized copy_alpha for 24-bit memory devices. (gdevmem.h, +gdevm24.c) + +Speeds up filling rectangles significantly. (gsbitops.c) + +Changes the band list rasterizer to use the memory space of the device +rather than the C heap: our allocator is considerably faster than malloc. +(gxclread.c) + +Speeds up stroking a little, especially in 90 degree rotated coordinate +systems. (gxstroke.c) + +</pre> + +<h2><a name="Version3.64"></a>Version 3.64 (limited, incremental) (1/27/96)</h2> + +<p> +This release fixes a few more bugs, including some serious bugs in band +lists, and adds pdfmark processing to the PDF writer. The PDF writer is +still not fit for real use, since it converts all text characters into 720 +dpi bitmaps and turns images into zillions of tiny rectangles (!), but it +should be producing legal output. + +<h3><a name="V3.64_Documentation"></a>Documentation</h3><pre> +Fixes bugs: + - Frans van Hoesel's e-mail address was incorrect. (gdevdjet.c) + - The man page for ansi2knr was out of date. (ansi2knr.1) + - The description of a procedure was out of date. (gxdcolor.h) + +Notes that several "optional" features are required in order to obtain the +full PostScript Level 1 functionality at the library level. (lib.doc) + +Documents the top-level interpreter API. (imain.h) + +Adds details on differences between the imager API and the PostScript +graphics operators. (lib.doc) + +Notes (here, in NEWS) that the change for device prototypes in 3.61 made the +protection attributes of a device significant for the first time. Only the +writable attribute is significant so far. (news) + +</pre><h3><a name="V3.64_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - The .dev rules in the library makefiles didn't list echogs as a +dependency. (jpeg.mak, libpng.mak, zlib.mak) + - The install rule tried to install gs.1.1 etc. rather than gs.1 +etc. (unix-end.mak) + - The install rule tried to install some nonexistent *.1 files. +(unix-end.mak) + +Adds 'help' and '?' procedures to assist users who don't read the +documentation. (gs_init.ps) + +Adds -A-, -E-, and -Z-... to turn off debugging flags. (gs.c) + +Adds a -dDELAYBIND switch to delay binding operators, to allow special +packages like pstotext to redefine them. (gs_init.ps) + +</pre><h3><a name="V3.64_Utilities"></a>Utilities</h3><pre> + +Fixes bugs: + - Fonts produced by rollconv.ps left a couple of items on the +operand stack, and left array packing set to true. (rollconv.ps) + +Makes ansi2knr require that the first token after a function header be a +left brace on the next line, so it can cope with some macros in IJG release +6a. Also updates it to work better without the GNU configure machinery, and +on some old compilers. (ansi2knr.c) + +Changes align.ps so it can be used directly to determine the margin +parameters. (align.ps, psfiles.doc) + +</pre><h3><a name="V3.64_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - The TIFF/F (G3 and G4) drivers were broken (bug introduced in +3.60). (gdevtfax.c) + - The PDF writer produced invalid output for 0-width, 0-height +images. (gdevpdfi.c) + - The PDF writer wasn't a page device. (gdevpdf.c) + - The PDF writer assigned the Contents node rather than the Pages +node as the Parent of each page. (gdevpdfx.h, gdevpdf.c) + +Corrects the margin information for the DeskJet printers to be the actual +values observed on a printer; all of the values in the file were wrong. +(gdevdjet.c) + +Adds pdfmark recognition and conversion to the PDF writer. All documented +pdfmarks (ANN, ARTICLE, DEST, DOCINFO, DOCVIEW, LNK, OUT, PAGE, PAGES, PS) +are recognized and converted, but some of them are not converted correctly. +(gs_pdfwr.ps, gdevpdfx.h, gdevpdf.c, gdevpdfm.c) + +Adds recognition of all Distiller parameters, except *ImageDict, to the PDF +writer. Currently only ASCII85EncodePages actually has any effect. +(gs_pdfwr.ps, gdevpdfx.h, gdevpdfp.c) + +Ensures that PDF output files include at least a default Info dictionary. +(gdevpdf.c) + +Changes the handling of coordinates in PDF output files so that the scale is +always 72 dpi, and so that each graphics operator is on a line by itself, +for compatibility with Adobe Illustrator. (gdevpdfx.h, gdevpdf*.c) + +Adds a driver for ImageMagick's MIFF format. The driver currently only +produces 24-bit, direct color, RLE compressed output. (gdevmiff.c) + +</pre><h3><a name="V3.64_Platforms"></a>Platforms</h3><pre> + +Changes the gp_check_interrupts platform procedure so that instead of just +returning a Boolean, it can now also return a negative error code. THIS IS +(THEORETICALLY) A NON-BACKWARD-COMPATIBLE CHANGE. However, since all +implementations of this procedure should only have been returning 0 or 1 up +to now, no existing code should need to be changed. (gpcheck.h, gsmisc.c) + +</pre><h3><a name="V3.64_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - devicenames was accidentally deleted. (gs_init.ps) + - -dFAKEFONTS could cause the memory manager to waste a lot of time. +(gs_dps1.ps) + - Using -r or -dFIXEDMEDIA with a non-page device caused an error. +(gs_init.ps) + - A VMS compiler reserves the word "readonly", which was used as a +parameter name. (imain.h, gsmain.c) + - A garbage collection during the execution of x/y/xyshow with an +array providing the values could get confused. (ibnum.h, ichar.h, stream.h, +ibnum.c, iscanbin.c, zchar.c, zchar2.c, zdps1.c, zupath.c) + - Errors in encoded number strings produced a typecheck rather than +a rangecheck error. (ibnum.c, zupath.c) + +Updates the DCT filters for IJG release 6a. (zfdctc.c) + +Provides an API call for getting the real stdio files. (imain.h, +gs.c, gsmain.c) + +</pre><h3><a name="V3.64_Streams"></a>Streams</h3><pre> + +Fixes bugs: + - If the CCITTFaxEncode stream encountered an output buffer boundary +while processing the last scan line of input, it could fail to process some +the scan line. (scfe.c) + - A couple of pointers weren't always initialized, possibly +confusing the garbage collector. (stream.c) + - The weighting coefficient structures used for image scaling +weren't declared properly for the garbage collector. (siscale.h, siscale.c) + +</pre><h3><a name="V3.64_Library"></a>Library</h3><pre> + +Fixes bugs: + - Unrotated patterns always used the bounding box size as the step, +rather than XStep/YStep. (gspcolor.c) + - Alpha computations for graphics could be seriously incorrect (bug +introduced in 3.6x). (gdevabuf.c) + - The length of the next_data_x command for the fill_mask operation +was incorrect, causing the band list to become confused (bug introduced in +3.63). (gxclpath.c) + - An extern was omitted, causing linker warnings. (gxdevice.h) + - RasterOps could cause an invalid access because the palette +for a memory device wasn't set. (gdevmrop.c) + - gximage.h was included unnecessarily. (gspaint.c) + - Color screens caused a segmentation fault (bug introduced in +3.6x). (gxcht.c) + - cshow returned the width in an incorrect coordinate system. +(gscoord.h, gschar.c) + - Filling or stroking a path that lay entirely off the page in the ++X or +Y direction could corrupt memory (bug introduced in 3.6x). +(gxclpath.c) + - When banding, painting characters with halftones produced random +results (bug introduced in 3.6x). (gxclpath.c) + - When banding, characters could get clipped when they shouldn't be +(bug introduced in 3.6x). (gxclpath.c) + - The default implementation of fill_mask could discard clipped +bitmaps (bug introduced in 3.6x). (gdevdflt.c) + - Non-halftoned 24-bit colors could get garbled when banding (bug +introduced in 3.6x). (gxclist.c) + - When banding, if a stroked path had subpaths that fell entirely +outside the current band, the rest of the path was drawn in the wrong place +(bug introduced in 3.6x). (gxclpath.c) + +Speeds up image interpolation on machines with slow floating point. +(siscale.h, siscale.c) + +Speeds up interpolated images when using device color spaces. (gxcvalue.h, +gxfrac.h, gdevht.c, gxcmap.c, gsimage.c, gsimage3.c) + +Speeds up color mapping a little by removing tests and calls in favor of +code copying. (gxcmap.c) + +Implements RasterOp for 24-bit RGB devices. (gdevm8.c, gdevm24.c, +gdevmrop.c) + +</pre> + +<h2><a name="Version3.63"></a>Version 3.63 (limited, incremental) (1/14/96)</h2> + +<p> +This release has the usual collection of bug fixes, and two significant +additions: AccurateScreens, and the first draft of a PostScript->PDF +converter ("distiller"). + +<h3><a name="V3.63_Documentation"></a>Documentation</h3><pre> +Fixes bugs: + - Some documentation for pstoppm.ps was out of date. (psfiles.doc) + - Documentation for acctest.ps, view*.ps, and zeroline.ps was +missing. (psfiles.doc) + - The documentation for rollconv.ps omitted the .CSR file. +(rollconv.ps) + +Removes an inappropriate RCS Id line. (gs.1) + +Adds a list of paper sizes to the man page. (gs.1) + +Suggests that driver authors use parameterization rather than copying when +possible. (drivers.doc) + +Adds an announcement of Ghostscript support on CompuServe. (README) + +Documents the new -dCOLORSCREEN switch and the existing -dDITHERPPI=lpi +switch. (use.doc) + +Notes that the OS/2 implementation now requires EMX/GCC 0.9b rather than +0.9a. (install.doc) + +Adds some new man pages. (pdf2ps.1, ps2ascii.1) + +Greatly expands lib.doc. (lib.doc) + +</pre><h3><a name="V3.63_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - The pg target for Unix platforms didn't include some necessary +additional X11 libraries. (unix-end.mak) + - The Unix library makefile didn't define CCAUX or CCLEAF. +(ugcclib.mak) + - Unix systems didn't `install' some .ps files. (unix-end.mak) + +Extends genconf so that features at the library level can have +initialization procedures. (gconf.c, genconf.c, gsinit.c) + +Adds a -dCOLORSCREEN[=false] switch to force enabling or disabling of +4-color screens. (gs_init.ps, gs_setpd.ps) + +</pre><h3><a name="V3.63_Utilities"></a>Utilities</h3><pre> + +Fixes bugs: + - The prfont utility didn't leave enough of a margin on the left. +(prfont.ps) + - The ps2ascii utility still created files _temp_.out and _temp_.err +even though they are no longer used. (ps2ascii.ps) + - The acctest.ps file was empty, rather than including a test +program. (acctest.ps) + +Adds ps2pdf[.bat] scripts for invoking the new pdfwrite driver. (ps2pdf, +ps2pdf.bat, unix-end.mak) + +</pre><h3><a name="V3.63_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - The x11alpha driver had a patch that suppressed output in many +cases. (gdevxalt.c) + - The X driver set up a parameter incorrectly in copy_color. +(gdevx.c) + - An explicit cast was needed to handle a 'const' problem. +(gdevpng.c) + +Adds a pdfwrite driver that creates syntactically correct PDF output. The +output is only reasonable for fill/stroke graphics, not for text or images. +(iscan.h, sa85x.h, sfilter.h, gdevpdf.c, sfilter2.c, zfdecode.c) + +</pre><h3><a name="V3.63_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - The test for WinExec failure on Win32 was incorrect. (gp_mswin.c) + - getenv was declared redundantly on OS/2. (gp_os2.c) + - gs16spl.c was missing <string.h>. (gs16spl.c) + +</pre><h3><a name="V3.63_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - Images read data in smaller and smaller increments (performance +bug only). (zpaint.c) + - Images with MultipleDataSources=true and two or more DataSources +referencing the same stream could get confused. (zpaint.c) + - Invoking setpagedevice with an undefined key, even with Policy = +1, caused an error. (gs_setpd.ps) + - IEEE floats in binary tokens or encoded number strings were read +incorrectly on CPUs that use non-IEEE floating point. (ibnum.c) + +Adds a 'const' to the second parameter of zimage_setup. (zimage2.c, +zpaint.c) + +Encapsulates the filling of free memory blocks in a macro. (igc.c, +igcstr.c) + +</pre><h3><a name="V3.63_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre> + +Fixes bugs: + - If the first line of a file began with % but the line was longer +than 255 characters, an error occurred. (pdf_main.ps) + - Masked images didn't set the color before drawing. (gs_pdf.ps) + - Extraneous blank lines in the trailer or cross-reference region +caused an error. (pdf_base.ps, pdf_main.ps) + +</pre><h3><a name="V3.63_Streams"></a>Streams</h3><pre> + +Speeds up image interpolation a little. Much more could be still be done. +(siscale.c) + +</pre><h3><a name="V3.63_Library"></a>Library</h3><pre> + +Fixes bugs: + - An error in handling a boundary condition could cause a horizontal +streak of pixels to be turned on or off when it shouldn't be. (gxfill.c) + - The new scan-line-based filling loop could write pixels twice. +(The old trapezoid-based loop still does write pixels twice.) (gxfill.c) + - For multi-plane images, gs_image_next only sets *pused for the +last plane; this wasn't documented. (gsimage.h) + - Images with MultipleDataSources=true and two or more DataSources +referencing the same stream could get confused. (gsimage.h, gsimage0.c) + - 12-bit gray images caused an invalid memory access. (gsimage.c) + - Nearly-zero-thickness lines didn't get filled, because the hack +that compensates for this peculiarity of the MS Windows PostScript driver +accidentally got disabled. (gxfill.c) + - Some casts to remove 'const' were omitted. (gxclread.c) + - 1-line-high bitmaps could get written in the band list with an +inconsistent number of bytes, causing errors when reading. (gxcldev.h, +gxclbits.c, gxclist.c, gxclpath.c, gxclread.c) + - Isolated dots produced by round caps usually disappeared. (They +still disappear sometimes.) (gxstroke.c) + - On 16-bit platforms, the computation of t2 and t3 in +gx_curve_x_at_y could overflow, leading to incorrect output. (gxpcopy.c) + - Stroking horizontal or vertical lines could produce variations of +1 pixel in the line width. (gxstroke.c) + - The default clipping region for band rendering was too large, +leading to wasted work. (gxclread.c) + - Guarantees no double pixel writing when necessary, i.e., when a +non-idempotent RasterOp is selected. (gsropt.h, gxfill.c) + - For unrotated black-and-white images, one column of pixels at the +right edge of the image might be incorrect. (gsimage1.c) + - A const pointer was passed inappropriately. (gxistate.h, +gscoord.c) + - CIE color conversion could address 1 element beyond the end of an +array, with unpredictable results. (gscie.c) + +Separates out the higher-level band list facilities, so they can be an +optional feature. (lib.mak, gxcldev.h, gxclpath.h, gxclbits.c, gxclist.c, +gxclpath.c, gxclread.c) + +Implements bitmap (fill_mask) clipping in the band list. (gxcldev.h, +gxclpath.h, gxclist.c, gxclpath.c, gxclread.c) + +Starts to separate out the RasterOp facility as an optional feature. +(lib.mak, gxdevice.h, gxdevrop.h, gdevdflt.c, gdevmrop.c) + +Encapsulates the filling of free memory blocks in a macro, at the request of +a licensee. (gdebug.h, gsmdebug.h, gsmemory.h, gs.c, gsalloc.c, gsmemory.c, +gxbcache.c) + +Speeds up fill_rectangle for 32-bit devices. (gdevm32.c) + +Speeds up path writing in band lists a little. (gxclpath.c) + +Implements AccurateScreens along the lines described in the Adobe +documentation. The current implementation can produce very large +super-cells, so it will not always be able to actually increase the screen +accuracy. (gxdht.h, gsht.c, gshtscr.c) + +</pre> + +<h2><a name="Version3.62"></a>Version 3.62 (limited, incremental) (12/26/95)</h2> + +<p> +This release makes some licensee-requested improvements in the garbage +collector and fixes a couple of minor bugs. It also constitutes a +checkpoint for the forthcoming forked 3.53 release. + +<h3><a name="V3.62_Documentation"></a>Documentation</h3><pre> +Notes that for Win32s, gs16spl.exe must be in the same directory as +gswin32.exe. (install.doc) + +Changes `3.N' to a real version number in the man page. (gs.1) + +Adds a reference to dos-psv, another "dumb terminal" user interface for +Ghostscript intended for MS-DOS users. (README) + +</pre><h3><a name="V3.62_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - The stack size for some of the PC platforms was set too small. +(watc.mak, watcwin.mak) + +Changes the default value of ORIENT1 from false to true, i.e., assumes that +a value of 1 for the orientation parameter of setpageparams indicates +portrait orientation. THIS IS A NON-BACKWARD-COMPATIBLE CHANGE. It only +affects files created for roll-media imagesetters. (gs_init.ps, use.doc) + +</pre><h3><a name="V3.62_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - The definition of the op_index_op_array_table macro had an +incorrect trailing semicolon. (opdef.h) + - Setting the PageSize policy to 1 and then trying to set the page +size caused an error if FIXEDMEDIA was selected. (gs_setpd.ps) + +Changes the garbage collector marking phase so that instead of just using a +single block (allocated, free, or default) for the mark stack, it can chain +all three types of block together. (igc.h, igc.c, igcstr.c, ilocate.c) + +Refactors the garbage collector slightly to reduce inter-module +dependencies. (int.mak, igc.h, igcstr.h, igcstr.c) + +Changes the garbage collector to keep track of ranges within each chunk that +must be scanned if the mark stack overflows. (gxalloc.h, igc.c) + +Adds [write]===[only] procedures, which act like == but also print the +contents of dictionaries, and ppstack, which acts like pstack but uses ===. +Changes ESTACKPRINT and OSTACKPRINT to use === rather than ==. (gs_init.ps, +gs_setpd.ps) + +</pre><h3><a name="V3.62_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre> + +Fixes bugs: + - If a PDF file substituted a calibrated color space for the +DeviceGray or DeviceRGB color space using a ColorSpace resource, the +PostScript file that pdf2ps produced from that PDF file caused an error. +(gs_pdf.ps) + +</pre><h3><a name="V3.62_Library"></a>Library</h3><pre> + +Fixes bugs: + - The debugging code for checking the sorting of line lists didn't +check for an empty list. (gxfill.c) + +</pre> + +<h2><a name="Version3.61"></a>Version 3.61 (limited) (12/10/95)</h2> + +<p> +This limited release fixes a few bugs (including a couple that significantly +affected character quality) and also includes some substantial performance +improvements. + +<h3><a name="V3.61_Documentation"></a>Documentation</h3><pre> +Fixes bugs: + - The directory name for the PNG library was incorrect. +(libpng.mak) + - The analysis of curve monotonocity in gxpcopy.c had an error. +(gxpcopy.c) + +Changes the subdirectory names for zlib and libpng to be consistent. +(make.doc) + +Documents a possible problem with object file format incompatibilities in +certain versions of GNU/Linux. (make.doc) + +Documents the new distinction between devices and device prototypes. +(language.doc) + +Adds a pointer to DEC's free pstotext utility. (README) + +</pre><h3><a name="V3.61_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - zlib.mak omitted some files in the encoding module dependencies. +(zlib.mak) + - os2.mak referred to png.mak rather than libpng.mak. (os2.mak) + - The png devices didn't include gdevpccm.$(OBJ) as a required file. +(devs.mak) + - Some modules in lib.mak referred to stream.h, which was defined in +int.mak. (int.mak, lib.mak) + - Quite a few dependencies on header files were missing from the +makefiles. (int.mak, lib.mak, *.mak) + +Adds a 'pg' target to the Unix makefiles, for building profiling +configurations. (unix-end.mak) + +</pre><h3><a name="V3.61_Utilities"></a>Utilities</h3><pre> + +Fixes bugs: + - Type 1 fonts in which some characters are defined by PostScript +procedures couldn't be compiled. (ccfont.h, iccfont.c, font2c.ps) + - pdf2ps didn't write Widths or Encoding in the converted file, +producing incorrect spacing and incorrect characters. (pdf_2ps.ps) + - markhint.ps didn't handle the Type 1 'div' operator, causing +typecheck errors. (markhint.ps) + - markhint.ps ignored the hstem3 and vstem3 hints. (markhint.ps) + +Changes the rollconv.ps utility to produce files whose names conform to the +8.3 length restriction, and to reduce the fixed RAM overhead for Kanji +fonts. (rollconv.ps) + +Adds a utility for detecting compiler problems that affect Ghostscript. +(bughunt.sh) + +</pre><h3><a name="V3.61_Drivers"></a>Drivers</h3><pre> + +Adds anti-aliasing capability (-dTextAlphaBits and -dGraphicsAlphaBits) to +the PGM and PPM drivers. (gdevpbm.c) + +Declares the static_procs member of the device structure as const *. This +should have been done a long time ago! (drivers.doc, gxdevice.h) + +</pre><h3><a name="V3.61_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - Printing didn't work in 32-bit MS Windows environments. +(bcwin32.mak, gdevmswn.c, gp_mswin.c) + - There were some compatibility problems with IBM C. (os2.mak, +gsdll.h, gdevpm.c, gp_os2.c) + +Adds the PNG drivers to the 32-bit MS Windows and OS/2 makefiles. +(bcwin32.mak, os2.mak) + +Adds a conditional to work around a bug in gcc 2.7.x (it didn't recognize +that the target of a const T * might still be mutable through aliasing). +(stdpre.h) + +</pre><h3><a name="V3.61_Fonts"></a>Fonts</h3><pre> + +Fixes bugs: + - Rasterizing a character in a Type 1 font with an invalid FontBBox +left some garbage on the operand stack (bug introduced in 3.52 or 3.60). +(gs_type1.ps) + - The font substitution algorithm could fail or loop. (gs_fonts.ps) + +Adds a little more support for CID fonts and CMaps. (gs_cidfn.ps, +gs_cmap.ps) + +</pre><h3><a name="V3.61_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - An #include <memory_.h> was missing. (ziodev.h) + - Scanner-detected errors (primarily syntaxerror) didn't report the +file position. (gs_init.ps) + - Rotated characters were rendered incorrectly (bug introduced in +3.52). (gstype1.c) + - Some compilers got upset about the use of 'dict' as a variable +name. (zdict.c) + - Operand stack overflows sometimes didn't set the "requested" field +correctly. (interp.c) + - Using -dBufferSpace= with a non-printer device caused an error. +(gs_init.ps) + +Adds zlibEncode/Decode filters. (int.mak, zfzlib.c) + +Separates devices from device prototypes. Prototypes, which lack the +writable attribute, cannot be installed as the current device or have their +parameters changed. This change allows Ghostscript to be exited and +restarted without being reloaded, which solves some problems with DLL +usage. ****** WE HAD TO SUBVERT THIS CHANGE BECAUSE OF MEMORY MANAGER +PROBLEMS, by making zgetdevice return a writable reference to the +prototype. (We finally fixed this in release 3.65.) (gs_init.ps, iref.h, +opcheck.h, zdevice.c, ztype.c, zwppm.c) + +Extends the client API to allow for pushing values onto the operand stack. +(imain.h, gs.c, gsmain.c) + +Defines a .setdefaultscreen procedure that sets the default halftone screen, +transfer function, and stroke adjustment for the current device. Changes +selectdevice and setpagedevice so that they call .setdefaultscreen; +setpagedevice calls .setdefaultscreen before calling the Install procedure, +so that Install can set different parameters if it wishes. Note that +setdevice does not do this. (gs_init.ps, gs_setpd.ps) + +</pre><h3><a name="V3.61_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre> + +Fixes bugs: + - Tf set the current text font twice, and interacted with pdf2ps in +an awkward way. (gs_pdf.ps, pdf_2ps.ps, pdf_font.ps) + - If a font had variant Widths, it could get confused in the cache +with the underlying font. (pdf_font.ps) + - If a character appeared twice in an encoding and the font +specified different Widths values for the two occurrences, the last Width +would be used. We patched this to ignore zero Widths, which is not the +correct solution but which almost always produces correct output. +(pdf_font.ps) + - Arrays containing nulls didn't print out correctly (bug introduced +in 3.60). (gs_init.ps) + - Some PDF files contain very large dictionaries, which caused a +stackoverflow. (pdf_base.ps) + +Speeds up the initial processing of PDF files by caching the map from page +numbers to page objects, and by not scanning the outlines if we aren't +producing PostScript output. (pdf_2ps.ps, pdf_base.ps, pdf_main.ps) + +</pre><h3><a name="V3.61_Streams"></a>Streams</h3><pre> + +Adds zlibEncode/Decode filters. (lib.mak, szlibx.h, szlibc.c, szlibd.c, +szlibe.c) + +</pre><h3><a name="V3.61_Library"></a>Library</h3><pre> + +Fixes bugs: + - glyphshow displayed a character with code 0 rather than the +requested character (bug introduced in 3.60.) (gschar.c) + - If trimming white space around a character reduced its raster, the +character was garbled in the cache (bug introduced in 3.60.) (gxccman.c) + - colorimage would incorrectly convert white pixels to black if the +image color space was CMYK, the current color space was not CMYK, and the +number of bits per pixel was 4 or 8. (gsimage2.c) + - One of the clipping tests for images was backwards (bug introduced +in 3.60). (gsimage.c) + - Type 1 fonts that used the Flex feature applied hints to the path +multiple times, causing dropouts, uneven stems, and other problems (bug +probably introduced in 3.21). (gstype1.c) + - If a Type 1 font used the Flex feature within the accent of an +accented character defined with seac, the shape of the accent could be +distorted. (gxtype1.h, gstype1.c) + - If a Type 1 font changed hints using the hint replacement facility +when the last operation was a closepath, the old hints would be applied a +second time, distorting the shape. (gxhint3.c) + - Band lists could read garbage beyond the end of data for a band, +causing unpredictable errors (bug introduced in 3.60). (gxclread.c) + - If the bounding box of the path for fill_path or stroke_path went +outside the device page boundary when banding, out-of-bounds memory +references occurred (bug introduced in 3.60). (gxdevice.h, gxclpath.c) + +Adds an alternative implementation of the core path filling algorithm that +is much faster on objects with curves but doesn't handle Y fattening. This +is the implementation that will normally be used for rasterizing characters. +This implementation rasterizes curves directly, without flattening them. +(gxfixed.h, gxpath.h, gzpath.h, gsdps1.c, gxfill.c, gxpcopy.c, gxpdash.c) + +Speeds up the flattening of curves substantially by omitting more redundant +points. (gxpcopy.c) + +Speeds up character bitmap compression a little more. (gsbitops.h, +gdevabuf.c, gsbitops.c, gxccman.c) + +Speeds up anti-aliased graphics a bit by computing a bounding box before +converting from oversampling to alpha values, and by speeding up the +bounding box computation itself. (gsbitops.h, gdevabuf.c, gsbitops.c, +gxccman.c) + +</pre> + +<h2><a name="Version3.60"></a>Version 3.60 (limited) (11/20/95)</h2> + +<p> +(Note: release numbers 3.54 through 3.59 were deliberately skipped.) This +internal release includes a major redesign of band lists in order to reduce +their size for embedded implementations, to move towards supporting "vector" +output formats, and to further separate the imager library from the language +interpreters. + +<h3><a name="V3.60_Documentation"></a>Documentation</h3><pre> +Fixes bugs: + - A comment was incorrect. (viewpbm.ps) + - The PixelDifference filters were not documented. (language.doc) + - The change from currenttime to .currenttime wasn't documented. +(language.doc) + - gs.1 incorrectly stated that the default font directory name +included the version number. (gs.1) + - The -g and -r switches didn't specify that the units for their +arguments are pixels and pixels per inch respectively. (use.doc) + - The PageOffset page device parameter wasn't listed. +(language.doc) + +Changes copy_mono and copy_color to optional procedures. (drivers.doc) + +Adds a reference to ps_view.ps, a "dumb terminal" user interface for +Ghostscript intended for MS-DOS users. (README) + +Splits off the documentation on installing Ghostscript into a separate file. +(readme, install.doc, use.doc) + +Adds documentation on the data format produced by the standard LZWEncode +filter. (readme, lzwce.doc) + +Clarifies XLIBDIR vs. XLIBDIRS. (make.doc) + +Adds user-contributed documentation on building Ghostscript under QNX. +(make.doc) + +</pre><h3><a name="V3.60_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - The rule for building dfaxhigh.dev had a typo. (devs.mak) + - The dependencies for gdevpipe.h were missing errno__h and +string__h. (unixtail.mak) + - The geninit program (the implementation of COMPILE_INITS=1) didn't +parse the command line properly, and didn't check for PostScript files +properly. (geninit.c) + - ccfontab.c was omitted from the fileset. The easiest way to fix +this was to rename it to icfontab.c. (gs.mak, int.mak, ccfontab.c) + - The Unix makefiles installed caption.ls (a typo) rather than +caption.ps. (unix-end.mak) + - XLIBDIR, for dynamic library access, wasn't defined. (*head.mak, +*tail.mak, ugcclib.mak) + +Adds the PNG and ZLIB makefiles to the fileset. (*.mak, png.mak, zlib.mak, +tar_cat) + +Puts the PixelDifference filters in the standard Level 2 set, since the LZW +filters may invoke them (a post-Red Book addition to the PostScript language +definition). (int.mak) + +Adds -Wcast-qual to the gcc compiler flags. (gcc-head.mak) + +Adds the PNG drivers to the standard Unix configurations. +(ansi/cc-/gcc-head.mak) + +Adds a -dNOFONTPATH switch to suppress any consultation of the FONTPATH +variable or the GS_FONTPATH environment variable. (gs_fonts.ps, gs_init.ps) + +</pre><h3><a name="V3.60_Utilities"></a>Utilities</h3><pre> + +Fixes bugs: + - The default scaling for viewing PBM files was computed +incorrectly. (viewpbm.ps) + - ps2ascii left a value on the stack for each unrecognized character +it processed, eventually causing a stackoverflow. (ps2ascii.ps) + +Changes viewpbm.ps so that it simply defines P1 through P6, allowing PBM +files to be executed with 'run'. (viewpbm.ps) + +Adds a small benchmark to crudely measure hardware/system performance. The +same file can either be compiled as a C program or executed as a PostScript +program. (bench.c) + +Adds a few PPD files to the distribution. There will probably be more as +time goes on. (tar_gs, unix-end.mak) + +Updates the Unix lpr scripts to handle a wider variety of device options. +(unix-lpr.doc, lprsetup.sh, unix-lpr.sh) + +Adds a utility for converting files produced by Macromedia's Rollup program +to a Type 0 form directly usable by Ghostscript. (rollconv.ps) + +</pre><h3><a name="V3.60_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - Forwarding devices passed an incorrect first argument when +forwarding a copy_rop operation. (gsdevice.c) + - Because of a typo, the LaserJet drivers had incorrect margins. +This was probably a new bug in 3.5x. (gdevdjet.c) + - A private name was duplicated. (gdevtfax.c) + - The x11alpha driver passed invalid colors to the X library. +(gdevxalt.c) + - The x11alpha driver set the blue component of colors incorrectly. +(gdevxalt.c) + - Some `const' declarations were missing. (gdevtifs.c, gdevtfnx.c, +gdevxxf.c) + - The size of A4 paper was slightly inconsistent across drivers. +(gdevdjet.c, gdevl256.c) + +Provides default implementations of copy_mono and copy_color in terms of +fill_rectangle. (gxdevice.h, gsdevice.c) + +Adds forwarders for sync_output and output_page. (gxdevice.h, gsdevice.c) + +Adds new optional procedures to the driver interface: + - fill_path for filling a path with a color; + - stroke_path for stroking a path; + - fill_mask for painting a color through a mask. +The default implementations use the existing rasterizer algorithms. This +involves a NON-BACKWARD-COMPATIBLE change to the parameters of a few +internal routines: + gs_currentlineparams + gx_fill_path, gx_fill_path_only, gx_path_expand_dashes, gx_path_flatten +and two externally visible routines not part of standard PostScript: + gs_setfilladjust, gs_currentfilladjust +(gdevmem.h, gdevprn.h, gspath.h, gspenum.h, gxcpath.h, gxdevice.h, gxdraw.h, +gxpaint.h, gxpath.h, gscoord.c, gsdevice.c, gspaint.c, gsstate.c, +gxacpath.c, gxclist.c, gxclread.c, gxcpath.c, gxdraw.c, gxfill.c, gxpaint.c, +gxpcmap.c, gxpcopy.c, gxstroke.c) + +Makes major changes to the dithering algorithm for the color DeskJet and +BubbleJet drivers, contributed by a user. (gdevcdj.c) + +Adds a contributed 12-bit RGB TIFF driver. (gdevtfnx.c) + +</pre><h3><a name="V3.60_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - The printjob created by Ghostscript was called "Ghostscirpt" +instead of "Ghostscript". (gp_os2.c) + - An "export" declaration was omitted from DllInit. (gp_mswin.c) + +Removes gp_get_clock (its interface was changed from calendar +days/milliseconds to epoch seconds/nanoseconds in an undocumented, +NON-BACKWARD-COMPATIBLE change in 3.51), and adds a new gp_get_realtime +procedure that returns epoch seconds/nanoseconds. This too is a +NON-BACKWARD-COMPATIBLE change; it is required because we overlooked the +prior change in a batch of user-contributed code. (gp.h, gp_*.c) + +</pre><h3><a name="V3.60_Fonts"></a>Fonts</h3><pre> + +Adds Heavy as a synonym for Bold when doing intelligent font substitution. +(gs_fonts.ps) + +</pre><h3><a name="V3.60_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - The setup for the CCITTFax filters set the 'raster' element +redundantly. (zfdecode.c) + - currentscreen and currentcolorscreen could give an error if the +current screen was set with sethalftone (or, for currentscreen, +setcolorscreen). (gs_dps1.ps) + - The font operators didn't work properly if a PostScript file +redefined certain operator names. (gs_res.ps) + - The CCITTFax filters imposed a limit of 9999 Rows or Columns. The +new limit is 32000. (zfdecode.c) + - Streams could get removed from a bookkeeping list prematurely, and +wind up dangling. (zfile.c) + - The garbage collector didn't ask for large enough a mark stack, +and only used half of what it got. (This was only a performance problem.) +(igc.c) + - Two private names duplicated names in a vendor library. (zbseq.c) + - Type 1 fonts didn't enforce the maximum value of BlueScale, which +caused some faulty fonts produced by Fontographer to produce incorrect +output. (zfont1.c) + - cvs / cvrs / = didn't produce Adobe-compatible output. +(gs_init.ps, iutil.h, iutil.c, zfileio.c) + - Multiple -I switches set the search path incorrectly. (gsmain.c) + - Many `const' declarations were missing. (icie.h, idparam.h, +iref.h, iutil.h, idparam.c, iinit.c, ilocate.c, iname.c, interp.c, iparam.c, +iutil.c, zcie.c, zfile.c, zgstate.c, ziodev.c, ztype.c) + - Fonts could wind up with a pointer to the wrong VM space, causing +potential GC or save/restore confusion. (zfont2.c) + - upath could leave garbage on the stack if it failed. (gs_dps1.ps) + +Speeds up rasterizing characters into the cache a little. (gs_type0.ps) + +Changes the default limit on the size of cached characters from the maximum +of (18 points or 5 times the "average" character size) to (18 points or 1% +of the total cache size). (gs_init.ps) + +Adds the DecodedByteAlign parameter to the CCITTFax filters. (zfdecode.c) + +Updates some code for compatibility with the new fill_path driver procedure. +(zupath.c) + +Replaces .set/currentfilladjust with .set/currentfilladjust2, and defines +the former in terms of the latter. (gs_init.ps, zgstate.c) + +Extends the make[word]imagedevice operators to accept palette values of 16, +24, and 32, for creating true-color image devices. (zdevice.c) + +Changes realtime to match the definition of gp_get_realtime. (zmisc.c) + +Removes the [.]currenttime operator. realtime provides interval timing in +milliseconds; the %Calendar% IODevice provides calendar times. (zmisc.c) + +Extends the LZW filters to handle the PDF Predictor (pixel-differencing) +option. (zfdecode.c, zfilter2.c, zfpdiff.c (deleted)) + +</pre><h3><a name="V3.60_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre> + +Fixes bugs: + - The length of an image's data was sometimes calculated +incorrectly, causing an error when converting PDF to PostScript. +(pdf_draw.ps) + - If word spacing and/or text spacing was non-zero, an error could +occur. (gs_pdf.ps) + - Text that was both filled and stroked caused an error. +(gs_pdf.ps) + +</pre><h3><a name="V3.60_Streams"></a>Streams</h3><pre> + +Fixes bugs: + - When closing an encoding filter stream whose target was also a +filter, the latter could get called incorrectly with last = 1, possibly more +than once, leading to premature EOD markers. (stream.c) + - The LZW-compatible encoder put out an incorrect end-of-data code. +(slzwce.c) + - The LZW-compatible encoder didn't put out a reset code soon +enough. (slzwce.c) + - Some `const' declarations were missing. (siscale.c) + - Doing a sgets on a closed stream could call sreadbuf, possibly +causing an error. (stream.c) + +Adds a new (optional) set_defaults procedure to the stream template, which +sets the stream parameters to default values. We only implement it for a +few stream types. (scfx.h, scommon.h, slzwx.h, spdiffx.h, srlx.h, +strimpl.h, scfd.c, scfe.c, slzwce.c, slzwd.c, slzwe.c, spdiff.c, srld.c, +srle.c) + +Adds a new parameter to the CCITTFax filters, DecodedByteAlign. This is an +integer N, which must be a power of 2 between 1 (2^0) and 16 (2^4), that +specifies that decoded data scan lines are always a multiple of N bytes. +The encoding filter skips data in each scan line from Columns to the next +multiple of N bytes; the decoding filter pads each scan line to a multiple +of N bytes. Default value: 1. (scfx.h, scfd.c, scfe.c) + +Increases the maximum width of a scan line for the CCITTFaxEncode filter to +32000 pixels. (scf.h) + +</pre><h3><a name="V3.60_Library"></a>Library</h3><pre> + +Fixes bugs: + - Cached characters sometimes had extra blank space on the left, +leading to some unnecessary bit-shuffling when imaging them. (gxccman.c) + - In rare cases, gray halftones called gx_color_load unnecessarily. +(gxdither.c) + - The list of all-bands commands wasn't initialized/reset properly. +(gxclist.c, gxclread.c) + - Rendering an anti-aliased character to a non-anti-aliased device +didn't free the temporary bitmap, causing memory to be lost. (gxccache.c) + - Dash patterns where the offset exactly reached a run of length 0 +skipped over the 0-length run. (gsline.c) + - Rectangles closed with both lineto and closepath weren't +recognized as rectangles. This is only a performance bug. (gxpath2.c) + - Because of a typo in a macro formal parameter list, a private name +was duplicated. (gsstruct.h) + - Text display operations didn't update the current character in the +enumerator structure during the fastest path through the code. This only +matters to one very unusual commercial client. (gschar.c) + - Some `const' declarations were missing. (gsparam.h, gxistate.h, +stdpre.h; gdevm1.c, gsalloc.c, gsfont.c, gsimage3.c, gsmemory.c, gsmisc.c, +gspcolor.c, gstype1.c, gxfill.c, gxpcopy.c) + +Changes the header files to assume that gcc on Solaris defines +__svr4__ and that, in this case, <string.h> has the right stuff in it. +(memory_.h) + +Refactors the character cache to share structures with a similar cache +used by band lists. Eventually the band list may be able to reference +the character cache directly, saving a lot of copying. (gxbcache.h, +gxfcache.h, gsfont.c, gxbcache.c, gxccache.c, gxccman.c) + +Speeds up getting the side bearing and width of a Type 1 charstring a +little. (gxtype1.h, gstype1.c) + +Redesigns band lists so that they can cache character bitmaps as well as +halftone bitmaps. Characters may be written for all bands, not just the +band(s) they appear in, depending on the setting of the CHAR_ALL_BANDS_COUNT +parameter in gxclbits.c. (gxcldev.h, gxclist.h, gxclbits.c, gxclist.c, +gxclread.c) + +Adds G4 fax compression for band list bitmaps. (gxcldev.h, gxclist.c, +gxclread.c) + +Incorporates the new set_defaults procedure into the memory-based band list +implementation. (gxclmem.c) + +Implements a halftoning device that can be used in a device pipeline. +(gdevht.h, gzht.h, gdevht.c, gxcht.c) + +Factors out imager state from the full graphics state. This division is +preliminary and subject to change. (gxistate.h, gxop1.h, gzstate.h, +gsline.c, gsstate.c, gstype1.c, gxhint*.c) + +Implements passing fill operations in the band list, except for pattern +color or colored halftones. (gxcldev.h, gxclist.h, gxclist.c, gxclread.c) + +Implements passing stroke operations in the band list, except for pattern +color or colored halftones. (gsline.h, gslparam.h, gxline.h, gzline.h, +gsline.c; gxcldev.h, gxclist.h, gxclist.c, gxclread.c) + +Implements the ability to represent halftoned characters in the band list. +(gxccache.c) + +Starts to implement the ability to do halftoning during the rendering phase +rather than before writing the band list (currently for black-and-white +devices only). Doing this required NON-BACKWARD-COMPATIBLE changes to the +interfaces of a few internal procedures: + gx_check_tile_size, gx_render_device_{color,gray} +(gxdcolor.h, gxdht.h, gzht.h, gsht.c, gsimage1.c, gsmisc.c, gspcolor.c, +gsstate.c, gxcht.c, gxclbits.c, gxdither.c, gxht.c) + +Implements passing clipping information in the band list. (gzcpath.h, +gxacpath.c, gxclpath.c, gxclread.c, gxcpath.c) + +Removes the gs_state * parameter from the device color fill_rectangle +procedures and many of their callers, since it is no longer needed. This is +a non-backward-compatible change to an internal API. (gdevmrop.h, +gxdcolor.h, gxdraw.h, gxpaint.h, gdevmrop.c, gsimage.c, gspcolor.c, gxcht.c, +gxclread.c, gxdraw.c, gxfill.c, gxht.c, gxpaint.c, gxstroke.c) + +Removes gxdevice.h from gzstate.h, since not all modules requiring access to +the graphics state need to know the implementation of devices. This entails +adding gxdevice.h to the include lists for some modules. (gxchar.h, +gxcpath.h, gxcvalue.h, gxdevice.h, gxtype1.h, gzstate.h; gschar.c, +gscoord.c, gsdevice.c, gsimage1.c, gsimage2.c, gsimage3.c, gspaint.c, +gspath.c, gsstate.c, gstype1.c, gxccache.c, gxccman.c, gxhint1.c, gxhint2.c, +gxhint3.c, gxpaint.c) + +Adds a compile-time option, ALPHA_LSB_FIRST, which causes alpha-sampled +characters to be nibble-reversed in the cache. This was created for a +specialized application and does not interact well with the rest of the +code. (gsbitops.c) + +Substantially reduces the space required to represent 24- or 32-bit colors +in the band list, by using more aggressive color differencing. (gxcldev.h, +gxclist.c, gxclread.c) + +Changes the allocation of unique IDs for halftone tiles to use the gray +level rather than the number of 1-bits as the increment to a base ID; this +allows more efficient (delta) representation of halftone indices in the band +list. (gxcldev.h, gxclist.c, gxclread.c, gxht.c) + +Substantially speeds up entering anti-aliased characters in the cache, by +removing white space before compressing rather than vice versa. +(gsbitops.c, gxccman.c) + +</pre> + +<hr> + +<h2><a name="Version3.53"></a>Version 3.53 (1/10/96)</h2> + +<p> +This is an anomalous, out-of-sequence release requested by a commercial +licensee. It consists of 3.52 plus the following retrofits from 3.60 +through 3.63: + - PDF interpreter and pdf2ps; + - Type 1 rasterizer fixes; + - Type 1 rasterizer and polygon fill performance improvements; + - MS Windows and OS/2 fixes; + - A few other important fixes. +It does NOT fix all problems reported since 3.52. + +<p> +The list of changes below indicates which subsequent release was the source +of each change. In several cases, minor editing of the change was required +to make it compatible with 3.52. + +<h3><a name="V3.53_Documentation"></a>Documentation</h3><pre> +Fixes bugs: + [3.61] The analysis of curve monotonocity in gxpcopy.c had an error. +(gxpcopy.c) + +[3.63] Notes that the OS/2 implementation now requires EMX/GCC 0.9b rather +than 0.9a. (use.doc) + +[3.62] Notes that for Win32s, gs16spl.exe must be in the same directory as +gswin32.exe. (use.doc) + +[3.62] Adds a reference to dos-psv, another "dumb terminal" user interface +for Ghostscript intended for MS-DOS users. (README) + +[3.61] Adds a pointer to DEC's free pstotext utility. (README) + +[3.60] Adds a reference to ps_view.ps, a "dumb terminal" user interface for +Ghostscript intended for MS-DOS users. (README) + +</pre><h3><a name="V3.53_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + [3.60] The geninit program (the implementation of COMPILE_INITS=1) +didn't parse the command line properly, and didn't check for PostScript +files properly. (geninit.c) + [3.60] ccfontab.c was omitted from the fileset. The easiest way to +fix this was to rename it to icfontab.c. (gs.mak, int.mak, ccfontab.c) + [3.60] The definition of pdfread.dev did an ADDMOD, not a SETMOD. +(int.mak) + +[3.60] Adds a -dNOFONTPATH switch to suppress any consultation of the +FONTPATH variable or the GS_FONTPATH environment variable. (gs_fonts.ps, +gs_init.ps) + +</pre><h3><a name="V3.53_Utilities"></a>Utilities</h3><pre> + +Fixes bugs: + [3.61] pdf2ps didn't write Widths or Encoding in the converted file, +producing incorrect spacing and incorrect characters. (pdf_2ps.ps) + [3.60] ps2ascii left a value on the stack for each unrecognized +character it processed, eventually causing a stackoverflow. (ps2ascii.ps) + +[3.61] Changes the rollconv.ps utility to produce files whose names conform +to the 8.3 length restriction, and to reduce the fixed RAM overhead for +Kanji fonts. (rollconv.ps) + +[3.60] Adds a utility for converting files produced by Macromedia's Rollup +program to a Type 0 form directly usable by Ghostscript. (rollconv.ps) + +</pre><h3><a name="V3.53_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + [3.60] Because of a typo, the LaserJet drivers had incorrect +margins. This was probably a new bug in 3.5x. (gdevdjet.c) + [3.60] A private name was duplicated. (gdevtfax.c) + [3.60] The x11alpha driver passed invalid colors to the X library. +(gdevxalt.c) + [3.60] The x11alpha driver set the blue component of colors +incorrectly. (gdevxalt.c) + +</pre><h3><a name="V3.53_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + [3.63] The test for WinExec failure on Win32 was incorrect. +(gp_mswin.c) + [3.63] getenv was declared redundantly on OS/2. (gp_os2.c) + [3.63] gs16spl.c was missing <string.h>. (gs16spl.c) + [3.61] Printing didn't work in 32-bit MS Windows environments. +(bcwin32.mak, gdevmswn.c, gp_mswin.c) + [3.61] There were some compatibility problems with IBM C. (os2.mak, +gsdll.h, gdevpm.c, gp_os2.c) + [3.60] The printjob created by Ghostscript was called "Ghostscirpt" +instead of "Ghostscript". (gp_os2.c) + [3.60] An "export" declaration was omitted from DllInit. +(gp_mswin.c) + +[3.61] Adds a conditional to work around a bug in gcc 2.7.x (it didn't +recognize that the target of a const T * might still be mutable through +aliasing). (stdpre.h) + +</pre><h3><a name="V3.53_Fonts"></a>Fonts</h3><pre> + +Fixes bugs: + [3.61] Rasterizing a character in a Type 1 font with an invalid +FontBBox left some garbage on the operand stack (bug introduced in 3.52 or +3.60). (gs_type1.ps) + [3.61] The font substitution algorithm could fail or loop. +(gs_fonts.ps) + +[3.60] Adds Heavy as a synonym for Bold when doing intelligent font +substitution. (gs_fonts.ps) + +</pre><h3><a name="V3.53_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + [3.63] Invoking setpagedevice with an undefined key, even with +Policy = 1, caused an error. (gs_setpd.ps) + [3.62] Setting the PageSize policy to 1 and then trying to set the +page size caused an error if FIXEDMEDIA was selected. (gs_setpd.ps) + [3.61] Rotated characters were rendered incorrectly (bug introduced +in 3.52). (gstype1.c) + [3.60] currentscreen and currentcolorscreen could give an error if +the current screen was set with sethalftone (or, for currentscreen, +setcolorscreen). (gs_dps1.ps) + [3.60] Streams could get removed from a bookkeeping list +prematurely, and wind up dangling. (zfile.c) + [3.60] Multiple -I switches set the search path incorrectly. +(gsmain.c) + [3.60] Fonts could wind up with a pointer to the wrong VM space, +causing potential GC or save/restore confusion. (zfont2.c) + [3.60] upath could leave garbage on the stack if it failed. +(gs_dps1.ps) + +[3.61] Extends the client API to allow for pushing values onto the operand +stack. (imain.h, gs.c, gsmain.c) + +[3.61] Defines a .setdefaultscreen procedure that sets the default halftone +screen, transfer function, and stroke adjustment for the current device. +Changes selectdevice and setpagedevice so that they call .setdefaultscreen; +setpagedevice calls .setdefaultscreen before calling the Install procedure, +so that Install can set different parameters if it wishes. Note that +setdevice does not do this. (gs_init.ps, gs_setpd.ps) + +[3.60] Speeds up rasterizing characters into the cache a little. +(gs_type0.ps) + +[3.60] Changes the default limit on the size of cached characters from the +maximum of (18 points or 5 times the "average" character size) to (18 points +or 1% of the total cache size). (gs_init.ps) + +[3.60] Implements parts of the Type 1 BuildChar callout in C. (gs_type1.ps, +zchar.c) + +</pre><h3><a name="V3.53_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre> + +Fixes bugs: + [3.62] If a PDF file substituted a calibrated color space for the +DeviceGray or DeviceRGB color space using a ColorSpace resource, the +PostScript file that pdf2ps produced from that PDF file caused an error. +(gs_pdf.ps) + [3.61] Tf set the current text font twice, and interacted with +pdf2ps in an awkward way. (gs_pdf.ps, pdf_2ps.ps, pdf_font.ps) + [3.61] If a font had variant Widths, it could get confused in the +cache with the underlying font. (pdf_font.ps) + [3.61] If a character appeared twice in an encoding and the font +specified different Widths values for the two occurrences, the last Width +would be used. We patched this to ignore zero Widths, which is not the +correct solution but which almost always produces correct output. +(pdf_font.ps) + [3.61] Arrays containing nulls didn't print out correctly (bug +introduced in 3.60). (gs_init.ps) + [3.61] Some PDF files contain very large dictionaries, which caused +a stackoverflow. (pdf_base.ps) + [3.60] The length of an image's data was sometimes calculated +incorrectly, causing an error when converting PDF to PostScript. +(pdf_draw.ps) + [3.60] If word spacing and/or text spacing was non-zero, an error +could occur. (gs_pdf.ps) + [3.60] Text that was both filled and stroked caused an error. +(gs_pdf.ps) + +[3.61] Speeds up the initial processing of PDF files by caching the map from +page numbers to page objects, and by not scanning the outlines if we aren't +producing PostScript output. (pdf_2ps.ps, pdf_base.ps, pdf_main.ps) + +</pre><h3><a name="V3.53_Streams"></a>Streams</h3><pre> + +Fixes bugs: + [3.60] When closing an encoding filter stream whose target was also +a filter, the latter could get called incorrectly with last = 1, possibly +more than once, leading to premature EOD markers. (stream.c) + [3.60] The LZW-compatible encoder put out an incorrect end-of-data +code. (slzwce.c) + [3.60] The LZW-compatible encoder didn't put out a reset code soon +enough. (slzwce.c) + [3.60] Doing a sgets on a closed stream could call sreadbuf, +possibly causing an error. (stream.c) + +</pre><h3><a name="V3.53_Library"></a>Library</h3><pre> + +Fixes bugs: + [3.63] On 16-bit platforms, the computation of t2 and t3 in +gx_curve_x_at_y could overflow, leading to incorrect output. (gxpcopy.c) + [3.61] glyphshow displayed a character with code 0 rather than the +requested character (bug introduced in 3.60.) (gschar.c) + [3.61] If trimming white space around a character reduced its +raster, the character was garbled in the cache (bug introduced in 3.60.) +(gxccman.c) + [3.61] colorimage would incorrectly convert white pixels to black if +the image color space was CMYK, the current color space was not CMYK, and +the number of bits per pixel was 4 or 8. (gsimage2.c) + [3.61] Type 1 fonts that used the Flex feature applied hints to the +path multiple times, causing dropouts, uneven stems, and other problems (bug +probably introduced in 3.21). (gstype1.c) + [3.61] If a Type 1 font used the Flex feature within the accent of +an accented character defined with seac, the shape of the accent could be +distorted. (gxtype1.h, gstype1.c) + [3.61] If a Type 1 font changed hints using the hint replacement +facility when the last operation was a closepath, the old hints would be +applied a second time, distorting the shape. (gxhint2.c, gxhint3.c) + [3.60] Cached characters sometimes had extra blank space on the +left, leading to some unnecessary bit-shuffling when imaging them. +(gxccman.c) + [3.60] The list of all-bands commands wasn't initialized/reset +properly. (gxclist.c) + [3.60] Because of a typo in a macro formal parameter list, a private +name was duplicated. (gsstruct.h) + [3.60] Text display operations didn't update the current character +in the enumerator structure during the fastest path through the code. This +only matters to one very unusual commercial client. (gschar.c) + +[3.61] Adds an alternative implementation of the core path filling algorithm +that is much faster on objects with curves but doesn't handle Y fattening. +This is the implementation that will normally be used for rasterizing +characters. This implementation rasterizes curves directly, without +flattening them. (gxfixed.h, gxpath.h, gzpath.h, gxdraw.c, gxfill.c, +gxpcopy.c) + +[3.61] Speeds up the flattening of curves substantially by omitting more +redundant points. (gxpcopy.c) + +[3.61] Speeds up character bitmap compression a little more. (gsbitops.h, +gdevabuf.c, gsbitops.c, gxccman.c) + +[3.61] Speeds up anti-aliased graphics a bit by computing a bounding box +before converting from oversampling to alpha values, and by speeding up the +bounding box computation itself. (gsbitops.h, gdevabuf.c, gsbitops.c, +gxccman.c) + +[3.60] Speeds up getting the side bearing and width of a Type 1 charstring a +little. (gxtype1.h, gstype1.c) + +[3.60] Adds a compile-time option, ALPHA_LSB_FIRST, which causes +alpha-sampled characters to be nibble-reversed in the cache. This was +created for a specialized application and does not interact well with the +rest of the code. (gsbitops.c) + +[3.60] Substantially speeds up entering anti-aliased characters in the +cache, by removing white space before compressing rather than vice versa. +(gsbitops.c, gxccman.c) + +</pre> + +<h2><a name="Version3.52"></a>Version 3.52 (limited) (10/6/95)</h2> + +<p> +This is an incremental release to fix a few problems in 3.51. Since it is +being made in an environment with no network connectivity, it will probably +not be released to the general public. ****** THE CHANGES MARKED WITH *** +BELOW WERE LOST IN THE PROCESS OF SHUFFLING FILESETS BETWEEN ENVIRONMENTS. +THEY ARE INCORPORATED IN 3.60 BUT NOT IN 3.52. ****** + +<h3><a name="V3.52_Procedures"></a>Procedures</h3><pre> +Fixes bugs: + - The fileset included a meaningless empty file. (acctest.ps) + *** The definition of pdfread.dev did an ADDMOD, not a SETMOD. +(int.mak) + +</pre><h3><a name="V3.52_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - The RunLengthEncode filter used with a dictionary argument could +give a spurious error. (zfilter.c) + - The fast form of the 'dup' operator failed to check for stack +overflow, which could lead to memory smashing. (interp.c) + *** Level 1 configurations gave errors during initialization. +(ialloc.c, iinit.c, ireclaim.c) + *** Attempting to look up or insert a noaccess string as a +dictionary key converted the string to a name rather than giving an error. +(idict.h, idict.c) + +Adds a C implementation of the .dicttomark (>>) procedure. (gs_init.ps, +zdict.c) + +*** Implements parts of the Type 1 BuildChar callout in C. (gs_type1.ps, +ifont.h, zchar.c, zfont1.c, zfont2.c) + +</pre><h3><a name="V3.52_Library"></a>Library</h3><pre> + +Fixes bugs: + - Braces were missing in an initializer. (gxdcolor.h) + - Composite fonts with a non-zero translation in the FontMatrix +positioned characters incorrectly. (gschar.c) + *** gsparam.c wouldn't compile with some versions of the Borland +compiler. (gsparam.c) + +Speeds up the handling of curve segments in Type 1 fonts a little. +(gstype1.c) + +Speeds up displaying very short strings a little. (gschar.c) + +*** Implements parts of the Type 1 BuildChar callout in C. (gxfont.h) + +</pre> + +<h2><a name="Version3.51"></a>Version 3.51 (9/27/95)</h2> + +<p> +This is the first public release since 3.33. Its main features are a +working setpagedevice, a working PDF interpreter, and a working PDF to PS +converter. + +<h3><a name="V3.51_Documentation"></a>Documentation</h3><pre> + +Fixes bugs: + - The -dSHORTERRORS switch wasn't documented in enough places. +(current.doc, use.doc) + - The DLL documentation was internally inconsistent. (dll.doc) + - The %pipe% file name syntax wasn't documented. (language.doc) + +</pre><h3><a name="V3.51_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - caption.ps wasn't installed properly. (unix-end.mak) + - geninit depended on $(gconfig_h) in an improper way. (geninit.c, +int.mak, *.mak) + - One script lacked the #!/bin/sh header. (gsdj500) + +Adds the 24-bit color TIFF driver to all configurations that support +black-and-white TIFF. (*.mak) + +</pre><h3><a name="V3.51_Utilities"></a>Utilities</h3><pre> + +Fixes bugs: + - align.ps was omitted from the fileset. (psfiles.doc, align.ps, +unix-end.mak) + +</pre><h3><a name="V3.51_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - A driver had some \s in formal parameter lists. (gdevcdj.c) + - A driver had some improper &s. (gdevtifs.c) + - The default MS Windows printer driver was very slow. (gdevwpr2.c) + - The (newly restructured) TIFF drivers could produce a memory +access error. (gdevtifs.c) + - The CGM drivers referred to an obsolete structure member. +(gdevcgm.c) + - The black-and-white H-P drivers didn't set the margins properly +(again). (gdevdjet.c) + - Several of the most common printer drivers omitted some scan lines +at the bottom of the page. (gdevprn.h, gdevprn.c) + +At the request of the main OS/2 developer, adds a printer device for OS/2. +(gdevos2p.c, os2.mak) + +Makes many changes to the stcolor driver, submitted by the developer just +before the release. (devices.doc, unix-end.mak, gdevstc.h, gdevstc*.c, +stcinfo.ps, stcolor.ps, stcinfo.ps) + +</pre><h3><a name="V3.51_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - usertime (and realtime) were broken on VMS. (gp_vms.c) + - The 32-bit MS Windows DLL control file had a typo. (gsdll32.def) + +Removes the color inkjet drivers from the 16-bit Windows executable, because +they overflow the 64K default data segment; adds PCX, TIFF, and BMP output +formats. (bcwin.mak) + +</pre><h3><a name="V3.51_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - A routine was declared 'private' inconsistently. (zcie.c) + - -dSHORTERRORS didn't remove enough non-Adobe error output. +(gs_init.ps) + +</pre><h3><a name="V3.51_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre> + +Fixes bugs: + - The ProcSet relied on the presence of NullFont. (gs_pdf.ps) + +</pre><h3><a name="V3.51_Library"></a>Library</h3><pre> + +Fixes bugs: + - There was an extraneous \ outside a macro. (gsline.c) + - Scaling up a black-and-white image could caused many scan lines to +be inverted. (gsimage1.c) + - The initial clipping path did not take Margins into account +properly. (gxdevice.h, gdevxalt.c, gscoord.c, gsdevice.c, gsdevmem.c, +gsdparam.c, gspath.c) + - If banding was required, characters could come out as solid black +rectangles. (gxclist.c, gxclread.c) + +</pre> + +<h2><a name="Version3.50"></a>Version 3.50 (limited) (9/24/95)</h2> + +<p> +This is the last limited bug-fix release during beta test. The color +DeskJet drivers are broken (they sometimes produce black rectangles instead +of characters); we will fix this in the next release. +<p> +The following issues have been postponed to an unspecified future release: +<ul> +<li> - Filling areas often writes pixels twice, causing incorrect +output +with certain unusual RasterOp values. [1.814] +<li> - The tar.gz archives should include a subdirectory like +gs-3.46/ in +the file names. +<li> - The CCITTFaxDecode filter should skip initial junk if +EndOfLine = +true. [1844 8/24/95, NRE] +</ul> + +<h3><a name="V3.50_Procedures"></a>Procedures</h3><pre> +Fixes bugs: + - The name of the new 24-bit TIFF driver was incorrect in one place. +(vms.mak) + +</pre><h3><a name="V3.50_Utilities"></a>Utilities</h3><pre> + +Adds a new utility to put a caption in a box at the bottom of each page. +(caption.ps) + +</pre><h3><a name="V3.50_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - The PC display devices weren't page devices. Probably all the +other display and window system devices should be made page devices too, but +we aren't going to bother tracking them down. (gdevpcfb.c) + - There was a lot of duplicated code in the TIFF drivers. +(gdevtifs.h, gdevtfax.c, gdevtfnx.c, gdevtifs.c) + +Updates the bjc600 / bjc800 drivers with changes from the author. +(devices.doc, gdevbjc.h, gdevcdj.c) + +</pre><h3><a name="V3.50_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - Building with COMPILE_INITS=1 produced a stackunderflow error. +(gs_pdf_e.ps) + - An internal operator didn't have a name. (ztoken.c) + - Some error and information messages weren't in the Adobe format. +(gs_fonts.ps, gs_init.ps) + - Some common Adobe compatibility operators weren't implemented: +pagemargin, pageparams, setpagemargin. (gs_statd.ps, gs_lev2.ps) + - setpageparams set Margins rather than PageOffset. (gs_lev2.ps) + - setpage and setpageparams didn't set Orientation. (gs_lev2.ps) + - If the end of an input buffer fell just after the / of a literal +name, a memory access error could occur. (iscan.c) + - When the interpreter returned from gs_[main_]run_string_continue, +there could be an extra value on the operand stack. (iscan.h, istream.h, +interp.c, iscan.c, zfileio.c, zfproc.c, zpaint.c, ztoken.c) + - If the character cache was disabled, or if a character was too +large to be cached, returning from a font BuildChar procedure could do an +erasepage. (zchar.c) + +A minor change was required for compatibility with the library change for +image devices. (zdevice.c) + +Adds a -dSHORTERRORS switch that changes some of the common error and +warning messages for greater Adobe compatibility. (gs_init.ps, gs_fonts.ps) + +</pre><h3><a name="V3.50_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre> + +Fixes bugs: + - If a CharProc for a Type 3 font did a BT/ET, the graphics state +could get confused. (gs_pdf.ps) + - If a Tf occurred inside a BT/ET, it didn't take effect on +subsequent BT/ETs. (gs_pdf.ps) + +</pre><h3><a name="V3.50_Library"></a>Library</h3><pre> + +Fixes bugs: + - There was no way to control whether an image device was a page +device. Fixing this required a NON-BACKWARD-COMPATIBLE CHANGE to +gs_makewordimagedevice and gs_initialize_wordimagedevice to take a Boolean +page_device argument. Fortunately, this change affects only a few obscure +library clients. (gsdevice.h, gsdevmem.c) + +Adds translation capability to clipping devices. This isn't used anywhere +yet. (gxcpath.h, gxcpath.c) + +Adds procedures for doing unaligned copy_xxx operations. These were added +for a customer. (gxdevice.h, gsdevice.c) + +Changes the (undocumented) return value of gs_setcachedevice[2]: they used +to return 1 if the current show operation was a non-displaying one +(stringwidth or cshow), and now return 1 if the cache device was just +installed. This change was required to fix the BuildChar page clearing bug +in the interpreter. THIS IS A NON-BACKWARD-COMPATIBLE CHANGE, but as far as +I know, there aren't any external clients of these routines. (gschar.h, +gschar.c) + +</pre> + +<hr> + +<h2><a name="Version3.49"></a>Version 3.49 (limited) (9/20/95)</h2> + +<p> +This is another bug-fix release during beta test. There are other bugs +outstanding, but the ones I know about right now are all platform-specific. + +<h3><a name="V3.49_Documentation"></a>Documentation</h3><pre> +Fixes bugs: + - make.doc didn't mention that the .def files are needed to build a +MS Windows executable. (make.doc) + +</pre><h3><a name="V3.49_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - There were some forward references to macro definitions in the +makefiles. (int.mak, lib.mak) + - The default device for library configurations was the null page +device, not the first device in DEVICE_DEVS. (ugcclib.mak) + +</pre><h3><a name="V3.49_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - The BJC600 / BJC800 drivers were missing a header file. +(gdevbjc.h, gdevcdj.c) + - A procedure name was used in two different files. (gdevcdj.c) + - The PCX driver didn't return an error code in case of failure. +(gdevpcx.c) + - The X Windows driver produced some confusing warning messages. +(gdevxini.c) + - Some names were duplicated between drivers. (gdevepsc.c) + - The X driver maintained its own, peculiar initial matrix even if +Ghostview wasn't involved. (gdevx.c) + +With the permission of the author, changes the 24-bit TIFF license from GNU +to Aladdin. (gdevtfnx.c) + +</pre><h3><a name="V3.49_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - The VMS build scripts were out of sync with the makefiles (again). +(modules.lis, vms.mak) + +</pre><h3><a name="V3.49_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - When the requested media size matched an available size exactly +with a 90 degree rotation, Orientation was ignored. (zmedia2.c) + +Makes zcurrentdevice extern. (opextern.h, zdevice.c) + +</pre><h3><a name="V3.49_Library"></a>Library</h3><pre> + +Fixes bugs: + - A couple of places used memcpy instead of memmove. (gxclread.c) + - If a bitmap image was compressed with RLE compression in a band +list, it would cause an error on decompression. (gxclread.c) + - The representation of colors in the band list was needlessly +inefficient. (gxcldev.h, gxclist.c, gxclread.c) + - When using colored halftones, snowflak.ps crashed with an invalid +memory access. More generally, any use of halftones could cause the garbage +collector to make an invalid access. (gsstate.c) + +Adds some more code for paths in band lists, but again doesn't activate it. +(gxcldev.h, gxpath.h, gzline.h, gsline.c, gspath1.c, gxclist.c, gxclread.c, +gxpath.c) + +</pre> + +<h2><a name="Version3.48"></a>Version 3.48 (limited) (9/17/95)</h2> + +<p> +This is the second bug-fix release during beta test. Among other things, it +fixes a bug introduced in 3.47 that caused all PDF files to give an error. + +<p> +******NOTE: the BJC600 and BCJ800 drivers do not work in this release, +because we didn't get a file from the author in time. They will compile, +but not run. This will be fixed in the next round. + +<h3><a name="V3.48_Documentation"></a>Documentation</h3><pre> +Fixes bugs: + - Alan Barclay's contact information was wrong. (README) + +</pre><h3><a name="V3.48_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - The linker path for Watcom C++ 10.5 was wrong. (wccommon.mak) + - There was a syntax error in a batch file. (pdf2ps.bat) + - The VMS build script didn't have entries for some printers. +(vms.mak) + +Adds the bjc600 and bjc800 devices on all platforms that already include the +color DeskJet devices. (*.mak) + +</pre><h3><a name="V3.48_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - The H-P drivers didn't reposition the cursor properly at the +beginning of pages after the first page, causing the image to be shifted +down slightly and cut off at the bottom. (gdevdjet.c) + - The x11alpha driver was extremely slow. (gdevxalt.c) + - The -g switch by itself didn't work for the X Windows driver. +(gdevxini.c) + - .installpagedevice can get a rangecheck on MS Windows because the +HWColorMap can change spontaneously. (gs_setpd.ps) + +Updates the bjc600 and bjc800 drivers with new versions from Yves Arrouye. +(gdevcdj.c) + +Adds a user-contributed driver that writes uncompressed 24-bit RGB TIFF +images in a format that is standard on NeXT platforms. This driver is +governed by the GNU license and is therefore separated from the rest of the +Aladdin distribution. (gdevtfnx.c) + +</pre><h3><a name="V3.48_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - There was an undefined reference to clock_gettime on some Unix +systems. (gp_unix.c) + - The new gp_fopen routine had several errors. (gp_vms.c) + +</pre><h3><a name="V3.48_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - Some routines that should be main-instance-specific weren't. +(imain.h, main.h, gsmain.c) + - sethalftone with a Type 2 or Type 4 halftone didn't work on CMYK +devices. (zht2.c) + - Setting A4 paper as the default in gs_init.ps, or specifying +-dPAPERSIZE, conflicted with -g. (gs_init.ps) + - The maximum value of a single-precision float wasn't correct on +VAX systems. (math_.h, iscannum.c) + - Some integer expressions were passed as floating point arguments. +(gs.c, zmedia2.c) + - Media selection in setpagedevice was broken (again), as of 3.46. +(gs_setpd.ps, zmedia2.c) + +</pre><h3><a name="V3.48_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre> + +Fixes bugs: + - Substituted color spaces caused an error. (gs_pdf.ps, +pdf_draw.ps) + +</pre><h3><a name="V3.48_Library"></a>Library</h3><pre> + +Fixes bugs: + - If a halftone had no non-default components that matched the +device's primary colors, the result would be a solid color rather than a +halftone using the default screen. (gsht.c) + - sethalftone with a Type 2 or Type 4 halftone didn't work on CMYK +devices. (gxht.h, gsht.c, gsht1.c) + - The new gp_fopen routine wasn't being used. (gsiodev.c) + - A mixing of float and fixed values caused a clipping region to be +possibly incorrect by up to 1 pixel. (gspaint.c) + - A function definition was inconsistent with the prototype. +(gspath1.c) + +Adds preliminary code for including paths in band lists, but doesn't +activate any of it. (lib.mak, gxcldev.h, gxclist.c, gxclread.c) + +</pre> + +<h2><a name="Version3.47"></a>Version 3.47 (limited) (9/14/95)</h2> + +<p> +This is a bug-fix release during beta test. It is meant to have no new +functionality, although in the case of setpagedevice that's stretching +things a little. + +<h3><a name="V3.47_Documentation"></a>Documentation</h3><pre> +Fixes bugs: + - The Mac documentation still referred to IJG JPEG v5a rather than +v6. (make.doc) + - The RasterOp texture device was identified incorrectly. +(gdevmrop.c) + - use.doc and psfiles.doc didn't mention the PDF-related files. +(psfiles.doc, use.doc) + - psview is no longer available. (README) + - current.doc didn't document the recognized setpagedevice keys. +(current.doc) + +</pre><h3><a name="V3.47_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - Many utility programs weren't included in the Unix 'install' list. +(unix-end.mak) + - It wasn't at all convenient to make configurations without the BCP +or other non-standard filters. (*.mak, int.mak, modules.lis, zfilter2.c, +zfilterx.c) + - The gconfig.c and iconfig.c files weren't deleted after +compilation. (int.mak, lib.mak) + - unix-end.mak referred to the nonexistent macros INT{1,2}_MAK. +(unix-end.mak) + - The rules for building the dfax drivers were incorrect. (devs.mak) + - Omitting filter.dev produced an undefined reference. (int.mak) + +Adds a customer-contributed makefile for Microsoft Visual C++ 2.n under +Windows NT. (msvcwint.mak) + +</pre><h3><a name="V3.47_Utilities"></a>Utilities</h3><pre> + +Fixes bugs: + - The JPEG utility didn't support the new progressive JPEG modes, +and didn't invert Adobe Photoshop output as needed. (viewjpeg.ps) + - The printafm utility had a single font name wired in. (printafm, +printafm.ps) + - The CIE lookup simulation had several bugs. (docie.ps) + - pdf2ps[.bat] were missing from the fileset. + - Files produced by pdf_2ps didn't include the GS_PDF ProcSet. +(gs_pdf.ps, pdf_2ps.ps, pdf_base.ps, pdf_main.ps) + +</pre><h3><a name="V3.47_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - Bits read back from an EGA or VGA device were incorrect. +(gdevpcfb.c) + - The 24-bit PCX run length compressor used a slow algorithm. +(gdevpcx.c) + - gdevstc.c wouldn't compile with the Borland compiler. (gdevstc.c) + - There was a typo in the OS/2 PM driver. (gdevpm.c) + - .installpagedevice gets a rangecheck on X Windows because the +HWColorMap can change spontaneously. (gs_setpd.ps) + - The left margin for the DeskJet 500 was wrong. (gdevdjet.c) + - The two notions of "margin" (offset of 0,0 from physical page +corner vs. unprintable area around edges of physical page) were still +confused. We've now fixed this for the H-P monochrome printers, but it's +probably still confused for all other printers. (gdevprn.h, gdevdjet.c) + +</pre><h3><a name="V3.47_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - The Windows print spooler header file wasn't included when it +needed to be, and some other Win32-specific changes were missing. +(gsdll32.def, gp_mswin.c) + - Windows DLLs didn't parse "s in the command "arguments" correctly. +(gsdll.c) + +</pre><h3><a name="V3.47_Fonts"></a>Fonts</h3><pre> + +Fixes bugs: + - FAKEFONTS could get the font directories into inconsistent states. +(gs_dps1.ps, gs_fonts.ps) + - The substitutions for Adobe's Myriad and Minion fonts weren't +appropriate. (gs_fonts.ps) + +</pre><h3><a name="V3.47_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - If pathforall got an error computing the user-space points on a +path, it could cause an invalid access. (zpath1.c) + - A 'private' declaration were omitted. (Why doesn't gcc catch +this??) (zcie.c) + - Setting GS_FONTPATH produced a stackunderflow error. +(gs_fonts.ps) + - currentscreen caused a typecheck if the screen had been set by +setcolorscreen. (gs_dps1.ps) + - setcolorrendering tried to cache values computed from the color +space even if the current color space wasn't a CIE space. (zcrd.c) + - Out-of-range numbers like 10E38 caused a floating point exception. +(iscannum.c) + - Giving a closed readable file as input for a filter caused an +invalidaccess. (files.h, interp.c, zfilter.c) + - setpagedevice opened the default device even with -dNODISPLAY. +(gs_init.ps, gs_setpd.ps) + - realtime returned the same value as usertime. (gs_lev2.ps, +zmisc.c) + - Storing a local value into systemdict caused some redundant code +to be executed. (zdict.c) + - Files with a very long first line could cause a rangecheck error. +(gs_init.ps) + - The PageOffset page device parameter was ignored. (gs_setpd.ps) + - The Orientation page device parameter wasn't handled properly. +(gs_setpd.ps, idparam.h, idparam.c, zmedia2.c) + - setpagedevice could set device parameters twice, with an +incomplete update the first time. (gs_setpd.ps) + +</pre><h3><a name="V3.47_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre> + +Fixes bugs: + - Readers confused the internal pdfrun procedure with the public +runpdf procedure. (pdf_*.ps) + +</pre><h3><a name="V3.47_Streams"></a>Streams</h3><pre> + +Fixes bugs: + - Closed streams had a NULL state pointer, causing problems for some +clients. (stream.c) + - Group 4 decoding could get an ioerror if an end-of-buffer occurred +in a horizontal code sequence between a makeup code and the termination +code. (scfd.c) + +</pre><h3><a name="V3.47_Library"></a>Library</h3><pre> + +Fixes bugs: + - Some 'private' declarations were omitted. (Why doesn't gcc catch +these??) (gdevmrop.c, gxht.c) + - Patterns could produce bad output in the band list. (gxclist.c) + - RasterOp wasn't implemented at all for 2- or 4-bit devices. (In +this release, we implement only a subset, and without handling transparency +properly.) (gdevm2.c, gdevm4.c, gdevmrop.c) + - Drawing operations and text sometimes didn't apply the RasterOp +when they should, and vice versa. (gxdcolor.h, gxdraw.c) + - setcolorrendering tried to cache values computed from the color +space even if the current color space wasn't a CIE space. (gscie.h, +gscie.c) + - Some CIE color spaces produced very distorted colors. (gscie.c) + - setpagedevice opened a window even with -dNODISPLAY. (gsdevice.c, +gsdparam.c) + - realtime returned the same value as usertime. (gp.h, time_.h, +gp_*.c) + - The library level attempted to handle the Orientation page device +parameter. (gxdevice.h, gdevbit.c, gsdevice.c, gsdparam.c, gspath.c) + - Severely non-linear CIE encoding/decoding functions produced +seriously skewed colors near the ends of the color value range. This +problem can now be alleviated, at a significant cost in performance, by +changing configuration parameters at the beginning of gscie.h. (gscie.h, +gscie.c) + - Files FTP'ed in binary mode weren't being opened properly on VMS. +(gp.h, gp_*.c, gsiodev.c) + - A header file had an inconsistent declaration. (math_.h) + +Adds a new gp_get_usertime procedure to gp.h. THIS IS A +NON-BACKWARD-COMPATIBLE CHANGE, affecting only platform implementors. It +was necessary to fix the realtime/usertime bug. (gp.h, time_.h, gp_*.c) + +Adds a new gp_fopen procedure to gp.h. THIS IS A NON-BACKWARD-COMPATIBLE +CHANGE, affecting only platform implementors. It was necessary to fix the +binary file problem on VMS. (gp.h, gp_*.c) + +</pre> + +<h2><a name="Version3.46"></a>Version 3.46 (limited) (9/4/95)</h2> + +<p> +This is the "serious beta test" release for the next public release. It +finishes implementing RasterOp in the graphics state, and the remaining +commonly used parts of setpagedevice. + +<h3><a name="V3.46_Documentation"></a>Documentation</h3><pre> +Documents some possible problems when building with DJGPP v2.0-beta. +(make.doc) + +Adds documentation on using Ghostscript as a PDF interpreter. (use.doc) + +Notes linking problems with the Watcom 10.0 environment. (make.doc) + +</pre><h3><a name="V3.46_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - The rule for $(ccfonts).dev was wrong. (gs.mak) + +Makes some additional filters into 'features'. (devs.mak, gs.mak) + +Splits off 2 new makefiles from gs.mak, which had gotten very large: lib.mak +(graphics library) and int.mak (interpreters). (tar_cat, tar_cat.bat, +*.mak) + +Adds a new 'config-clean' target that may be helpful in changing +configuration definitions. (gs.mak) + +Notes in the relevant makefiles that on Unix and DVX systems, one should not +edit 'makefile' or the concatenated makefile, but should edit the individual +subfile and run tar_cat. (ansihead.mak, cc-head.mak, dgc-head.mak, +gcc-head.mak, devs.mak) + +Updates the Watcom makefiles to handle Watcom release 10.5, in which many +executables moved to different directories. (watc.mak, watcwin.mak, +wccommon.mak) + +Adds a pdf2ps shell script. (pdf2ps, pdf2ps.bat) + +Adds a -sFONTMAP= switch to specify the name of the Fontmap file. +(gs_fonts.ps) + +Adds a -u<name> switch to undefine a name from systemdict. (interp.h, gs.c, +iinit.c) + +Adds a -dFIXEDRESOLUTION switch to parallel -dFIXEDMEDIA. Makes -g set +FIXEDMEDIA and -r set FIXEDRESOLUTION. (gs_init.ps, gs_setpd.ps, gs.c) + +Changes some build procedures to avoid problems with read-only source files. +(gs.mak, int.mak, lib.mak) + +</pre><h3><a name="V3.46_Utilities"></a>Utilities</h3><pre> + +Adds a utility for emulating the CIE color mapping algorithms. (docie.ps) + +</pre><h3><a name="V3.46_Drivers"></a>Drivers</h3><pre> + +Changes the x11alpha device so that it uses 32-bit pixels with 8 bits of +alpha. (gdevxalt.c) + +Updates the Epson Stylus Color driver to Gunther Hess's release 1.17. +(devs.mak, unix-end.mak, devices.doc, stcolor.ps, gdevstc.h, gdevstc*.c) + +Updates the alternate X drivers for the change from PageSize to MediaSize. +(gdevxalt.c) + +Makes Duplex an optional parameter of printer devices rather than of all +devices. (gdevprn.h, gxdevice.h, gsdparam.c, gdevdjet.c, gdevprn.c) + +</pre><h3><a name="V3.46_Platforms"></a>Platforms</h3><pre> + +Makes pipes (%pipe% file syntax) a selectable option on Unix platforms, +rather than always being included. (ansihead.mak, cc-head.mak, +gcc-head.mak, ugcclib.mak, unixtail.mak) + +</pre><h3><a name="V3.46_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - colorimage, and the dictionary form of image with +MultipleDataSources = true, didn't check that all the data sources were of +the same type. (zpaint.c) + - colorimage, and dictionary-type images with MultipleDataSources = +true, usually didn't work properly with files. (zpaint.c) + - grestoreall left a dangling pointer to the transfer function +cache. (gsstate.c) + - Changes made by setpagedevice could get 'lost' and not installed +in the current page device dictionary. (gs_setpd.ps) + - The Install procedure was called before the new page device +dictionary had gotten installed. (gs_setpd.ps) + - If a grestore/grestoreall/restore/setgstate operation switched +page devices, the new page device didn't get installed properly. +(gs_setpd.ps, opextern.h, zdevice2.c, zdps1.c) + - If the current screen was a Type 1 halftone, currentscreen and +currentcolorscreen returned frequency = 60, angle = 0 rather than the +Frequency and Angle from the halftone (see Adobe TN 5085). (gs_dps1.ps, +gs_init.ps) + - setscreen with a Type 1 halftone dictionary didn't insert the +frequency and angle into the dictionary (see Adobe TN 5085). (gs_dps1.ps) + - upath didn't include a trailing moveto in the bounding box. +(gs_dps1.ps, zpath1.c) + - setpagedevice didn't automatically rotate or scale the image when +necessary. (gs_setpd.ps, zmedia2.c) + +Moves the RasterOp operators to a separate file. (iutil.h, iutil.c, +zgstate.c, zrop.c) + +Eliminates the unnecessary "wrapper" around .setdevice. (zdevice2.c) + +Establishes the convention that all interpreter callbacks into PostScript +code use procedure names that begin with %; documents this in gs_init.ps. +Changes Type1BuildChar and Type1BuildGlyph to %Type1BuildChar and +%Type1BuildGlyph. (gs_init.ps, gs_type1.ps, zfont0.c, zfont1.c) + +Changes image / imagemask / colorimage for the new library API. (zimage2.c, +zpaint.c) + +Reorganizes font loading to make compiled fonts and Fontmap interact better +with each other. (gs_ccfnt.ps, gs_fonts.ps, gs_init.ps, gs_res.ps) + +Implements parameter collection for the new CIEBasedDEF[G] color spaces, but +doesn't actually implement the color spaces themselves. (icie.h, zcie.c, +zcrd.c) + +Renames iconfig.c as iconf.c to avoid problems with read-only source files. +(iconf.c) + +</pre><h3><a name="V3.46_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre> + +Fixes bugs: + - PDF to PostScript conversion didn't work. (pdf_main.ps) + +Shifts most of the work in the PDF interpreter from the reader to the +ProcSet. This simplifies the code considerably and also makes it easier to +modify. (gs_pdf.ps, pdf_draw.ps, pdf_font.ps, pdf_main.ps) + +</pre><h3><a name="V3.46_Library"></a>Library</h3><pre> + +Fixes bugs: + - 'static' was omitted in a place that some compilers require it. +(gxccman.c) + - Some compilers don't allow a variable with the same name as a +preprocessor macro with arguments. (gscie.c) + - Some places did a "return -1" rather than a proper error return. +(gsdevice.c, gxclist.c) + - An external declaration had a typo. (gsrop.h) + - An extra semicolon upset some compilers. (gzpath.h) + - Printer devices that didn't use the standard macros for generating +their procedure vector wound up being considered as non-page devices. +(gdevprn.c) + - Some compilers truncated identifiers longer than 31 characters. +(gscspace.h, zcie.c, gscie.c) + - upath didn't include a trailing moveto in the bounding box. +(gspath.h, gspath1.c) + - RasterOp value 126 returned an incorrect result. (gsroptab.c) + +Finishes implementing RasterOp in the graphics state. (gdevmrop.h, gsrop.h, +gsropt.h, gsstate.h, gxbitmap.h, gxcindex.h, gxdcolor.h, gxdevice.h, +gzstate.h, gdevmrop.c, gscolor.c, gsdevice.c, gsimage.c, gsimage1.c, +gsimage2.c, gsimage3.c, gspcolor.c, gsrop.c, gsstate.c, gxacpath.c, +gxccache.c, gxcht.c, gxcmap.c, gxdither.c, gxdraw.c, gxht.c) + +Changes forwarding devices so they forward get_bits by default. This +probably doesn't affect any existing code. (gxdevice.h, gsdevice.c) + +Changes the API for gs_image[mask]_init to pass a structure rather than a +very large number of scalars. THIS IS A NON-BACKWARD-COMPATIBLE CHANGE, +motivated by the addition of further image parameters to support RasterOp. +Since there are no external clients of the library yet, it shouldn't matter. +(gsimage.h, gsimage.c, gslib.c, gxccache.c) + +Redefines the device "page size" as being the size of the actual media, +changing the name of the gx_device PageSize member to MediaSize, the name of +the PageSize device parameter to .MediaSize (but keeping PageSize as +equivalent, for backward compatibility), and the name of the +gx_device_set_page_size procedure to gx_device_set_media_size (keeping the +old name as a macro). THIS IS A NON-BACKWARD-COMPATIBLE CHANGE. It is +necessary to make setpagedevice work, and to avoid confusion about what +"page size" means. It potentially affects any device driver, but almost +none of the device drivers distributed with Ghostscript are affected, and +those have been updated. (gsparam.h, gxdevice.h, gsdevice.c, gsdparam.c, +gspath.c) + +Renames gconfig.c as gconf.c to avoid problems with read-only source files. +(gconf.c) + +Adds an API procedure for setting a bitmap pattern. (gscolor2.h, +gspcolor.c) + +</pre> + +<h2><a name="Version3.45"></a>Version 3.45 (limited) (8/27/95)</h2> + +<p> +The purpose of this release is to fix some minor bugs reported by commercial +licensees, and to add two enhancements: optional RenderTable interpolation +for CIE color, and reducing the temporary space used during character +caching (also for a licensee). + +<h3><a name="V3.45_Documentation"></a>Documentation</h3><pre> + +Notes that the only valid return values from get_alpha_bits are 1, 2, and 4. +(drivers.doc) + +Notes that the get_bits driver procedure will return a pointer to aligned +data, but does not require the caller's data area to be aligned. +(drivers.doc) + +</pre><h3><a name="V3.45_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - Many of the printer and file output drivers in devs.mak still +included gdevprn.$(OBJ) in their dependencies. (devs.mak) + - PDEVH was used before it was defined. (devs.mak) + - GENCONF_XE was used before it was defined. (unixhead.mak, +unix-end.mak) + +Makes it possible to switch sfile implementations without editing gs.mak. +(gs.mak) + +Makes it possible to specify alternate compiled font tables without editing +gs.mak. (gs.mak) + +Allows quoted arguments in @-files, e.g., + -sOutputFile="a file name with spaces" +(gs.c) + +</pre><h3><a name="V3.45_Utilities"></a>Utilities</h3><pre> + +Fixes bugs: + - The ps2ascii script could fail to delete temporary files in case +of an abnormal exit. (ps2ascii) + +</pre><h3><a name="V3.45_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - The MS Windows printer capability test was wrong. (gdevwpr2.c) + - The MS Windows and OS/2/PM displays weren't page devices. +(gdevwdib.c, gdevpm.c) + +Gets rid of all direct references to dev->PageSize in drivers. (gdevl256.c, +gdevvglb.c) + +</pre><h3><a name="V3.45_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - The 32-bit MS Windows configuration file for the Borland C++ +compiler was missing from the fileset. (bcc32.cfg, tar_gs) + +Makes the printer devices in the OS/2 implementation capable of outputting +directly to the print spooler. (use.doc, gp_os2.c) + +Makes printing on Windows NT and Windows 95 use the printer queue. +(gp_mswin.c, gswin32.rc) + +</pre><h3><a name="V3.45_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - Copying a null device produced an uninitialized pointer. +(gsdevice.c) + - The dictionary returned by deviceinfo wasn't read-only. +(gs_lev2.ps) + - If a filter's init code failed, an entry on the operand stack +(usually the top) could be smashed. (files.h, zfile.c, zfilter.c) + +Adds const in a few places that needed it. (zwppm.c) + +Adds interpolation to the CIE RenderTable lookup. (icie.h, zcie.c, zcrd.c) + +</pre><h3><a name="V3.45_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre> + +Allows PDF files with control-character garbage at the end, and up to 250 +characters of garbage at the beginning. The latter is only supported by +runpdf, not by run. (pdf_base.ps, pdf_main.ps) + +</pre><h3><a name="V3.45_Streams"></a>Streams</h3><pre> + +Fixes bugs: + - A 1-D CCITTFaxDecode stream could give an error if an input buffer +boundary fell just before a 0-length termination code. (scfx.h, scfd.c) + +</pre><h3><a name="V3.45_Library"></a>Library</h3><pre> + +Fixes bugs: + - A variable was used before being set, which could cause band +devices to become confused when processing colored halftones. (gxclist.c) + - Some of the color and tile bookkeeping for band lists was wrong +(as of 3.44), causing tiled areas to be filled with garbage. (gxclist.c, +gxclread.c) + - Colored Patterns showed up blank on devices whose native +representation of `black' was a non-zero value. The fix removes the +'cached' member of the gx_device structure, and requires monobit memory +devices to have a palette; this is a NON-BACKWARD-COMPATIBLE CHANGE for +anyone who was foolish enough to statically initialize a gx_device structure +without using the macros in gxdevice.h or gdevprn.h. (gdevmem.h, +gxdevice.h, gxdevmem.h, gdevm1.c, gdevmrop.c, gsdevice.c, gxcpath.c, +gxdither.c) + +Provides the framework for band devices to implement alpha (anti-aliasing). +(gxcldev.h, gdevprn.c, gsdevice.c, gxclist.c, gxclread.c) + +Implements an efficient API for enumerating paths using device coordinates. +(gspath.h, gxpath.h, gzpath.h, gspath1.c, gxpath2.c) + +Changes the character cache logic so that when rasterizing large +anti-aliased characters, it converts the oversampled bits to alpha values on +the fly rather than waiting until it has rasterized the entire character. +This saves a lot of temporary space, at the expense of some extra time and +lower quality results for Type 3 characters that don't use a single fill or +imagemask operation to draw the character. This enhancement requires adding +a member to the gx_device structure (max_fill_band), which is a +NON-BACKWARD-COMPATIBLE CHANGE for badly written drivers (see above). +(gxchar.h, gxdevice.h, gxpaint.h, gdevabuf.c, gschar.c, gspaint.c, +gxccache.c, gxccman.c, gxfill.c) + +Changes the palette member of memory devices from gs_string to +gs_const_string. (gdevmem.h, gxdevmem.h, gdevmem.c, gdevm1.c) + +Starts to decouple halftoning from the graphics state machinery, so +it can be applied after banding rather than before. (gxdcolor.h, +gxdht.h, gxdither.h, gzht.h, gxcmap.c, gxdither.c, gxdraw.c) + +Starts to decouple path filling from the graphics state machinery, so +that we can pass paths through band lists. (gxpaint.h, gxfill.c) + +Adds interpolation to the CIE RenderTable lookup. This is optional, enabled +by #define CIE_RENDER_TABLE_INTERPOLATE in gscie.h. (gscie.h, gxctable.h, +gscie.c, gxctable.c) + +</pre> + +<h2><a name="Version3.44"></a>Version 3.44 (limited) (8/21/95)</h2> + +<p> +This includes a few bug fixes, but its main purpose is to add two new +features: monobit and 8-bit gray-scale RasterOp (at the driver level, not at +the gstate level yet), and (compressed) band lists in RAM. Of course, these +new features may have introduced new bugs! + +<h3><a name="V3.44_Documentation"></a>Documentation</h3><pre> +Adds contact information for a user working on NeXT machines. (README) + +Notes that Ghostscript runs on FreeBSD. (README) + +Adds copy_rop (the RasterOp operation) to the driver interface. +(drivers.doc) + +Adds FONTPATH information for more operating systems. (use.doc) + +</pre><h3><a name="V3.44_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - The tar_cat script needed a #!/bin/sh to execute correctly on all +platforms. (tar_cat) + - There were a number of minor errors in the makefiles. (gs.mak, +unixhead.mak) + - Level 2 configurations without command lists had two undefined +references. (gs.mak) + - Some shells required an extra ';' to terminate an 'if' command. +(ugcclib.mak, unix-end.mak, unixtail.mak) + +Updates the JPEG code to the officially released version 6 of the IJG +library. See jpeg.mak for information on where to find this library. +(jpeg/*, jpeg.mak, *.mak, modules.lis) + +Adds a definition of XEAUX to the makefiles to parallel CCAUX, primarily for +cross-compilation environments. All references to <some-program>$(XE) must +be replaced by $(<SOME-PROGRAM>_XE), where some-program={$(GS), ansi2knr, +echogs, genarch, genconf, geninit}. This is a NON-BACKWARD-COMPATIBLE +CHANGE, required in order for the makefiles to work in cross-compiled +environments. (For non-cross-compiled environments, it currently doesn't +matter.) (gs.mak, *.mak) + +</pre><h3><a name="V3.44_Utilities"></a>Utilities</h3><pre> + +Updates ps2ai.ps to version 2.13. (ps2ai.ps) + +Changes all the utility shell scripts to include #!/bin/sh, to use exec, and +to pass the original arguments using "$@". (bdftops, font2c, gsbj, gsdj, +gslj, gslp, gsnd, wftopfa) + +</pre><h3><a name="V3.44_Drivers"></a>Drivers</h3><pre> + +Adds the requirement that all page-oriented devices (i.e., those that use +gdevprn.h and implement the print_page procedure) include page.dev in their +dependencies and use $(SETPDEV) rather than $(SETDEV) in their makefile rule +bodies. THIS IS A NON-BACKWARD-COMPATIBLE CHANGE. Without this change, the +command list logic (over 25K of unnecessary object code) would have to be +included in every configuration. (gs.mak, devs.mak, echogs.c) + +Adds a user-contributed driver for the Okidata Microline (IBM compatible) +dot matrix printers. (gdevokii.c) + +Adds copy_rop (the RasterOp operation) to the driver interface. Currently, +only monobit and 8-bit gray-scale devices implement it. (gxdevice.h, +gsdevice.c) + +Adds the ability to read back bits from the display to the x11 devices. +(x_.h, gdevx.c, gdevxalt.c) + +</pre><h3><a name="V3.44_Platforms"></a>Platforms</h3><pre> + +Makes some minor changes to support QNX. (stat_.h) + +Removes the mswinprn driver from the 16-bit Windows configuration, because +the 64K default data segment overflowed. (bcwin.mak) + +</pre><h3><a name="V3.44_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - Type 1 fonts didn't accept packed arrays for Subrs or OtherSubrs. +(zchar1.c, zfont1.c) + - TBCP-encoded files (yes, I know there isn't supposed to be any +such thing) didn't automatically activate TBCP decoding. (gs_init.ps) + - Fonts with invalid FID entries weren't detected. (zfont.c) + +Speeds up dictionary operations slightly by removing redundant checks for +nulls. (zdict.c) + +Starts adding support for the new CIEBasedDEF and CIEBasedDEFG color spaces. +(gs_l2img.ps, gs_lev2.ps, igstate.h, zcrd.c) + +Adds access operators for RasterOp and transparency in the graphics state. +(They don't actually do anything yet.) (zgstate.c) + +</pre><h3><a name="V3.44_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre> + +Fixes bugs: + - PDFDocEncoding was missing characters 24-31. (gs_pdf_e.ps) + +Moves the definition of pdfmark from systemdict to userdict so that Adobe +PostScript files won't think the interpreter is a distiller. (gs_pdf.ps) + +</pre><h3><a name="V3.44_Library"></a>Library</h3><pre> + +Fixes bugs: + - Some JPEG images had bands of garbage alternating with bands of +valid data. IJG v6 fixed this -- see above. + - With FPU_TYPE = -1, the cosine routine returned incorrect values +for angles above 270 degrees. (gsmisc.c) + - CIE color conversion didn't work on 16-bit systems. (gscie.h, +gscie.c) + +Partially implements reducing the intermediate space for rasterizing +anti-aliased characters by compressing the oversampled representation to an +alpha array incrementally. (gdevmem.h, gxchar.h, gxdevmem.h, gdevabuf.c, +gschar.c, gspaint.c, gxccman.c) + +Starts adding support for the new CIEBasedDEF and CIEBasedDEFG color spaces. +(gscie.h, gscspace.h, gscie.c) + +Completes the implementation of band lists in RAM. To select this feature, +change the definition of cl_impl in gs.mak from clfile to clmem. (Someday +we'll make this easier.) (gxclmem.h, gxclmem.c) + +Finishes implementing RasterOp and transparency at the driver level for +monobit and 8-bit gray-scale devices, and implements some of the framework +for general multiple-bit-per-pixel devices. See drivers.doc for +documentation. (gsropt.h, gxcldev.h, gxclist.h, gdevm1.c, gdevm8.c, +gdevmem.c, gdevmrop.c, gschar.c, gxclist.c, gxclread.c) + +Implements the ability to include commands applicable to all bands, rather +than an individual band, in the band list. Eventually this will be used for +passing halftones through the band list. (gxcldev.h, gxclist.h, gxclist.c) + +Adds support for 2-bit-deep 'word' memory devices. (gdevmem.h, gxdevmem.c, +gdevm2.c) + +Changes the initialization for memory devices so that they determine their +polarity from the device for which they are buffering the image (if any). +This is a subtle change. (gdevmem.h, gdevmem.c, gdevm1.c, gsdevmem.c) + +</pre> + +<h2><a name="Version3.43"></a>Version 3.43 (limited) (8/10/95)</h2> + +<p> +Fixes a few more minor bugs, and changes FEATURE selection back to +essentially the way it was before 3.41. + +<h3><a name="V3.43_Documentation"></a>Documentation</h3><pre> +Fixes bugs: + - A ~ was missing in a URL. (README) + +Adds information about an Amiga port of Ghostscript. (README) + +Removes a file called gs.1.c, which appears to be an obsolete version of +gs.1. + +Adds DCX documentation to the PCX driver. (We don't support DCX yet, but we +might in the future.) (gdevpcx.c) + +Adds information about getting Type 1 fonts from H-P if you have an H-P +PostScript printer. (use.doc) + +</pre><h3><a name="V3.43_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - The auxiliary programs wouldn't compile with ANSI compilers that +don't accept K&R syntax. (ccgs, gs.mak, ugcclib.mak, *head.mak, +unixtail.mak, echogs.c, genarch.c, genconf.c, geninit.c) + +Reinstates FEATURE_DEVS in the makefiles, getting rid of FEATURE1..10. THIS +IS A NON-BACKWARD-COMPATIBLE CHANGE, but it puts things back the way they +were before 3.41, with one exception: compiling the PostScript +initialization code into the executable is now a separate macro +COMPILE_INITS with a definition of 0 or 1, instead of the ccinit 'feature'. +(gs.mak, *.mak, fonts.doc, make.doc) + +Adds a CCLEAF macro to the makefiles, for optimizing the compilation of +modules containing only leaf procedures. (gs.mak, *.mak) + +Adds a CONFIG makefile variable that helps in maintaining multiple variants +in a single directory. (gs.mak, *.mak) + +</pre><h3><a name="V3.43_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - An extern for exit() (in <stdlib.h>) was omitted. (gp_vms.c) + +</pre><h3><a name="V3.43_Fonts"></a>Fonts</h3><pre> + +Reorganizes the compiled font facility so that fonts can be compiled and +turned into a library by third parties. (gs.mak, font2c.ps, gs_ccfnt.ps, +ccfont.h, iccfont.c, ccfontab.c) + +</pre><h3><a name="V3.43_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - internaldict was implemented as a dictionary in systemdict and an +operator in userdict, rather than as an operator in systemdict. This caused +a noaccess error when loading certain Type 1 fonts. (gs_init.ps, +gs_type1.ps) + - xfonts couldn't handle modified encodings. (zfont2.c) + +Changes the build date printout in the help message to YYYY-MM-DD. (gs.c) + +Adds native support for Multiple Master fonts (WeightVector). (zfont1.c) + +Implements sin and cos more efficiently (by table lookup with linear +interpolation) on machines with slow (or no) floating point. (zmath.c) + +Separates out the code for 'reading' the .ps initialization files, for the +new COMPILE_INITS arrangement. (imain.h, gconfig.c, gsmain.c, iconfig.c, +iccinit0.c, iinit.c) + +</pre><h3><a name="V3.43_Streams"></a>Streams</h3><pre> + +Fixes bugs: + - The CCITTFaxDecode filter could read up to 3 bytes beyond EOD. +This fix doesn't quite cover all cases, but at least it makes things better. +(ghc.h, sbhc.c, scfd.c) + +</pre><h3><a name="V3.43_Library"></a>Library</h3><pre> + +Fixes bugs: + - After a nocurrentpoint error from a show operation with a +composite font, the bookkeeping was confused and could cause an access +error. (gschar.c) + - xfonts couldn't handle modified encodings. (gsccode.h, gxchar.h, +gxfont.h, gxxfont.h, gschar.c, gxccache.c) + +Makes .charboxpath able to use cached character information. (gxchar.h, +gschar.c) + +Adds native support for Multiple Master fonts (OtherSubrs 14-18). +(gxfont1.h, gstype1.c) + +Improves the hashing functions for the character cache. (gxfcache.h, +gxccman.c) + +Adjusts the character oversampling algorithm to reduce thickening for +devices with alpha capability. (gsbitops.c) + +Improves the encoding of the band list for certain kinds of small +rectangles. (gxcldev.h, gxclist.c, gxclread.c) + +Implements sin and cos efficiently on machines with slow (or no) floating +point. (gxfarith.h, gsmatrix.c, gsmisc.c, gspath1.c) + +</pre> + +<h2><a name="Version3.42"></a>Version 3.42 (limited) (8/2/95)</h2> + +<p> +Fixes a few significant problems in 3.41, and brings the DLL code up to +date. + +<h3><a name="V3.42_Documentation"></a>Documentation</h3><pre> +Fixes bugs: + - language.doc still referred to rectappend rather than .rectappend. +(language.doc) + +Adds documentation on the Macintosh port. (readme, make.doc) + +Updates the DLL documentation. (dll.doc) + +Documents the BCP and TBCP filters as non-experimental. (language.doc) + +</pre><h3><a name="V3.42_Procedures"></a>Procedures</h3><pre> + +Changes the build date printout to YYYY-MM-DD. (gs_init.ps) + +</pre><h3><a name="V3.42_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - The VMS build script had gotten out of sync with the makefiles +(again). (vms.mak, modules.lis) + +Brings the MS Windows and OS/2 platforms up to date with the rest of the +code, including DLL support for OS/2. (os2.mak, gsdll*.def, gdevswn.c, +gdevpm.c, gdevwdib.c, gp_mswin.c, gp_os2.c, gsdll.c, gsmain.c) + +Adds a new platform-specific routine gp_do_exit, as an alias for the C +library `exit' call. (gp.h, gsdll.c, gsmain.c, gp_*.c) + +</pre><h3><a name="V3.42_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - .forgetsave at the outermost level didn't clear the l_new bit, +causing changes to be undone improperly. (isave.c) + - A 'void' formal parameter list upset some compilers (as it should +have). (gsmain.c) + +Adds a .charboxpath operator that appends to the current path the bounding +boxes of the characters of a string. (zchar.c, zchar1.c) + +</pre><h3><a name="V3.42_Streams"></a>Streams</h3><pre> + +Fixes bugs: + - A procedure was declared private inconsistently. (siscale.c) + +</pre><h3><a name="V3.42_Library"></a>Library</h3><pre> + +Fixes bugs: + - The library test program didn't do a necessary initial gsave. +(gslib.c) + - The fix for landscape monobit images in 3.41 could smash memory. +(gsimage1.c) + - 1-pixel-wide lines drawn with image or imagemask still disappeared +sometimes. (gsimage.c) + +Does some more preparatory work for the implementation of command lists in +RAM. (gdevprn.h, gxclio.h, gxclist.h, gxclfile.c, gxclist.c, gxclread.c) + +Adds a gs_charboxpath procedure that appends to the current path the +bounding boxes of the characters of a string. (gschar.h, gscpm.h, +gstype1.h, gxchar.h, gxpath.h, gxtype1.h, gzstate.h, gschar.c, gspaint.c, +gstype1.c, gxpath.c) + +</pre> + +<h2><a name="Version3.41"></a>Version 3.41 (limited) (7/27/95)</h2> +<p> +Another incremental release with bug fixes and customer-requested +enhancements. This release was intended to include the full setpagedevice +media matching and adjustment algorithm, but we discovered some +architectural problems during development, and have postponed it. + +<h3><a name="V3.41_Documentation"></a>Documentation</h3><pre> + +Replaces the build instructions for NeXTSTEP with more up-to-date and +accurate ones. (make.doc) + +Notes that some extra manual steps are required when cross-compiling. +(make.doc) + +Documents how to define new 'features' in the makefile. (gs.mak) + +</pre><h3><a name="V3.41_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - The build rule for ccinit.dev was circular. Fixing this required +a small but NON-BACKWARD-COMPATIBLE change in the way that features are +selected in the makefiles (FEATURE_DEVS replaced by FEATURE1..10). (*.mak, +fonts.doc, make.doc) + +Changes the build rule for gconfig.h to be less likely to overrun MS-DOS's +command line length limit. (gs.mak) + +Adds a -dFIXEDMEDIA switch to indicate that the media size should be +considered fixed after initialization. (gs_init.ps) + +</pre><h3><a name="V3.41_Utilities"></a>Utilities</h3><pre> + +Fixes bugs: + - traceimg.ps incorrectly referred to .stdout. (traceimg.ps) + - prfont.ps didn't display unencoded characters correctly. +(prfont.ps) + - ps2epsi didn't give correct bounding box information. (ps2epsi, +ps2epsi.ps) + - ps2epsi produced DSC comments that didn't fully conform to the +Adobe standard. (ps2epsi, ps2epsi.ps) + +Allows viewpbm.ps to take multiple files on the command line. (viewpbm.ps) + +</pre><h3><a name="V3.41_Drivers"></a>Drivers</h3><pre> + +Adds a preliminary, contributed PNG driver. THIS IS NOT USABLE YET -- DON'T +TRY TO USE IT. (png.mak, gdevpng.c) + +Increases the maximum allowable scan line width for the TIFF drivers from +5183 pixels to 12863 pixels. (scf.h) + +</pre><h3><a name="V3.41_Platforms"></a>Platforms</h3><pre> + +Updates the MS Windows DLL code to export the new, suspendable run_string +interface. (gsdll.h, gsdll.c, dll.doc) + +</pre><h3><a name="V3.41_Fonts"></a>Fonts</h3><pre> + +Fixes bugs: + - There were several errors in cfonts.mak. (cfonts.mak) + - The compiled fonts option didn't offer both free and standard +configurations. (gs.mak) + - A bug in the handling of Encoding resources prevented compiled +fonts from working. (gs_res.ps) + +Adds a little more support for CID-keyed fonts. They still aren't anywhere +near usable. (gs_cidfn.ps, gs_type1.ps) + +Adds a new Fontmap for Solaris 2.3. (Fontmap.Solaris) + +Adds support for Type 4 fonts (Type 1 fonts with their own BuildChar +procedures), including the CCRun procedure in internaldict. (gs_fonts.ps, +gs_res.ps, gs_type1.ps) + +</pre><h3><a name="V3.41_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - showpage and copypage didn't honor NumCopies in a page device. +(gs_setpd.ps, zdevice2.c) + - currentpagedevice returned incorrect information if the current +device wasn't a page device. (gs_setpd.ps) + - currentpagedevice didn't guarantee the presence of InputAttributes +and OutputAttributes. (gs_setpd.ps) + - The l_new bit wasn't set properly when a dictionary changed from +packed to unpacked keys, leading to unnecessary saves. (idict.c) + - Streams requiring intermediate buffering could read ahead too far, +causing input data to be skipped. (zfilter.c) + - cshow didn't reset the font to the base font when calling the +procedure. (zchar2.c) + - The Install procedure in a page device didn't set the default CTM. +(gs_setpd.ps, zmatrix.c) + - findlibfile didn't handle special files like %stdin correctly. +(zfile.c) + - setpagedevice didn't implement media matching. (gs_setpd.ps, +zdevice2.c, zmedia2.c, zmatrix.c) + - Some floating point numbers didn't print out with enough digits to +read back in with the identical value. (iutil.c) + - Integers that overflowed 31 bits (but not 32 bits) were converted +to negative integers rather than correct positive reals. (iscannum.c) + +Removes an experimental operator that called the image scaling/interpolation +code. (zimage2.c) + +Adds a -sSUBSTFONT=<fontname> switch that substitutes the given font for all +unknown fonts, bypassing the normal intelligent substitution algorithm. +(gs_fonts.ps) + +Adds the Revision system parameter. (zmisc2.c) + +Adds a .knownundef operator that does an undef and returns true iff the key +was formerly present. (zdict.c) + +Makes the maximum length of names be 256 if EXTEND_NAMES is being used, 16K +otherwise. (inamedef.h, iname.c) + +Adds internaldict. (gs_init.ps, iinit.c) + +Adds support for Type 4 fonts. (bfont.h, zchar.c, zchar1.c, zfont1.c, +zfont2.c) + +Changes .encodingdict to EncodingDirectory, for compatibility with Adobe +interpreters. (gs_init.ps, gs_kanji.ps, gs_res.ps) + +Adds superexec, an undocumented operator that is equivalent to exec but +suppresses all invalidaccess checks. NOT COMPLETED YET; currently superexec +is equivalent to exec. (zcontrol.c) + +</pre><h3><a name="V3.41_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre> + +Fixes bugs: + - .stderr was used but is no longer defined. (pdf_base.ps) + +</pre><h3><a name="V3.41_Streams"></a>Streams</h3><pre> + +Fixes bugs: + - Not all streams initialized their state pointer. (stream.c, +sfile.c, sfileno.c) + +Adds a filter for the smoothed image scaling algorithm. Eventually this +filter will require very little intermediate storage; right now it still +needs to buffer the entire intermediate image. (siscale.h, siscale.c) + +Increases the maximum allowable scan line width for the CCITTFaxEncode +filter from 5183 pixels to 12863 pixels. (scf.h) + +</pre><h3><a name="V3.41_Library"></a>Library</h3><pre> + +Fixes bugs: + - setpagedevice didn't update NumCopies correctly. (gdevprn.c, +gsdparam.c) + - The newly optimized code for monobit bitmaps could cause an +out-of-bounds memory access and/or make unaligned references. (gsimage1.c) + - setpagedevice with unknown keys could cause an /undefined error. +(gsdparam.c) + - cshow didn't reset the font to the base font when calling the +procedure. (gschar.h, gschar.c) + - The Install procedure in a page device didn't set the default CTM. +(gzstate.h, gschar.c, gscoord.c, gsdevice.c) + - Very non-linear EncodeABC procedures in a color rendering +dictionary could produce very inaccurate results. (gscie.h, gscie.c) + - The line_ptrs pointer in memory devices didn't get relocated if +the bitmap was moved during garbage collection, leading to memory smashing. +(gdevmem.c) + - setpagedevice didn't implement media matching. (gsdparam.c, +gscoord.c) + - 'word' memory devices weren't recognized as memory devices. +(gdevmem.c) + - makeimagedevice allocated, and then didn't free, an unnecessary +palette for monobit devices. (gsdevmem.c) + - The hack for 1-bit-wide images didn't work consistently, +particularly in landscape orientation. (gsimage.c, gsimage0.c) + +Adds an .IgnoreNumCopies page device parameter that causes #copies and +NumCopies to be ignored. (gxdevice.h, gsdevice.c, gsdparam.c) + +Removes the .IsPageDevice device parameter. (gsdparam.c) + +Converts the image scaling/interpolation code to a filter. (gximage.h, +gsimage.c, gsimage0.c, gsimage3.c) + +Adds support for Type 4 fonts. (gxfont.h) + +Adds a default implementation of parameter lists, designed to be usable +easily from C code. (gsparam.h, gsparam.c) + +</pre> + +<h2><a name="Version3.40"></a>Version 3.40 (limited) (6/28/95)</h2> + +<p> +This is another incremental limited release for delivery of a couple of +important bug fixes (pixel 'holes' in rotated images, setpagedevice errors +on some platforms) and an enhancement (architectural support for band lists +in RAM). + +<h3><a name="V3.40_Documentation"></a>Documentation</h3><pre> +Fixes bugs: + - The FTP location of the EMX DLLs was incorrect. (use.doc) + +</pre><h3><a name="V3.40_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - A couple of build rules for IJG v6 were omitted. (jpeg.mak) + +</pre><h3><a name="V3.40_Utilities"></a>Utilities</h3><pre> + +Fixes bugs: + - prfont.ps wouldn't print more than 128 unencoded characters. +(prfont.ps) + +</pre><h3><a name="V3.40_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - setpagedevice often caused /undefined errors on MS Windows and +OS/2 platforms. (gdevmswn.c, gdevpm.c) + - The VMS module list had gotten out of sync with the makefiles +(again). (modules.lis) + +</pre><h3><a name="V3.40_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - A couple of casts betwen char * and byte * were omitted. +(gsmain.c) + - gs_[main_]run_file_open wasn't exported properly. (imain.h, +main.h, gsmain.c) + +</pre><h3><a name="V3.40_Streams"></a>Streams</h3><pre> + +Changes the DCTEncode filter to return an error if it wasn't supplied enough +data before being closed. (sdcte.c) + +</pre><h3><a name="V3.40_Library"></a>Library</h3><pre> + +Fixes bugs: + - The coordinate computations for all filling operations were +slightly inaccurate, leading to pixel 'holes' in rotated images. (gxdda.h, +gximage.h, gsimage*.c, gxdraw.c, gxfill.c) + +Undoes an "optimization" (inlining the normal, fast case of a procedure) +that actually hurt performance. (gxclist.c) + +Refactors the command list code so that it in the future it will be able to +store command lists either in RAM or in the file system. (gdevprn.h, +gxcldev.h, gxclio.h, gxclist.h, gdevprn.c, gxclfile.c, gxclist.c, +gxclread.c) + +Changes the interface to the path filling code to take separate X and Y +adjustment values. (gxpaint.h, gspaint.c, gxfill.c) + +Makes the command list allocate a small tile cache if the device doesn't +need halftones. (gxclist.c) + +</pre> + +<hr> + +<h2><a name="Version3.39"></a>Version 3.39 (limited) (6/24/95)</h2> + +<p> +This is again an incremental release primarily for delivery of enhancements +(suspendable string input in particular) to commercial customers, and with a +few bug fixes. + +<h3><a name="V3.39_Documentation"></a>Documentation</h3><pre> +Notes that PDF files and repositioning PostScript files do not work if +Ghostscript was compiled with VAX C. (use.doc) + +Notes the requirement for EOD lookahead in decoding filters. (strimpl.h) + +</pre><h3><a name="V3.39_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - There were a number of undefined or used-before-defined variables +in the makefiles. (devs.mak, dvx-head.mak, unixhead.mak, gs.mak) + - Some commands in the makefile exceeded the MS-DOS limit of 120 +characters. (gs.mak) + +Adds a -P and -P- switch to control whether the search path automatically +includes `.' as its first element. Moves the default value of this choice +(SEARCH_HERE_FIRST) from gsmain.c to iminst.h. (iminst.h, gs.c, gsmain.c, +use.doc) + +Makes some makefile changes in anticipation of the IJG v6 release. (*.mak) + +</pre><h3><a name="V3.39_Utilities"></a>Utilities</h3><pre> + +Fixes bugs: + - font2c generated invalid C procedure names from font names that +contained non-alphanumerics other then '-'. (font2c.ps) + - font2c generated a single element of incorrect type for numeric +arrays of zero length. (font2c.ps) + +</pre><h3><a name="V3.39_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - The VMS build scripts had gotten out of sync (again). (vms*.mak, +modules.lis) + +</pre><h3><a name="V3.39_Fonts"></a>Fonts</h3><pre> + +Makes the FONTPATH directory scanner accept fonts that begin with +%!PS-AdobeFont or %!FontType1 with no following `-'. (gs_fonts.ps) + +</pre><h3><a name="V3.39_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - eq and ne on arrays or dictionaries required read access. +(zrelbit.c) + - An include was missing. (zcsindex.c) + - .forgetsave at the outermost level didn't reset the l_new flag in +changed slots, leading to an anomalous (although perhaps not harmful) state. +(isave.c) + - Dictionary growing or unpacking would both save and free the old +keys array, leading to a dangling reference. (idict.c) + +Changes gs_interpret so that for .quit with a negative operand <= -100, +gs_interpret returns e_Fatal rather than the operand. THIS IS A +NON-BACKWARD-COMPATIBLE CHANGE, but as far as we know, it doesn't affect +anyone. (interp.c) + +Adds an API to allow feeding string input to the interpreter in pieces. +(errors.h, imain.h, main.h, gs.c, gsmain.c, interp.c, zcontrol.c, zfilter.c) + +Adds new predicates .identeq and .identne that test "pointer equality", even +for numbers and strings. (iutil.h, iutil.c, zrelbit.c) + +Changes a few uses of return_error to return in places that don't lead +directly to a PostScript error. (idict.c) + +</pre><h3><a name="V3.39_Streams"></a>Streams</h3><pre> + +Fixes bugs: + - The logic for skipping up to a 0xff byte when decoding JPEG data +could skip too much. (sdctd.c, sjpegd.c) + - If a buffer boundary fell in the middle of, or just before, an +EOD, some decoding filters could stop reading too soon. (sbcp.c, smtf.c, +sstring.c) + +Makes some minor changes in anticipation of the IJG v6 release. +(gsjmorec.h) + +</pre><h3><a name="V3.39_Library"></a>Library</h3><pre> + +Fixes bugs: + - A declaration should have been removed. (gsdll.c) + - The library initialization/termination API wasn't declared. +(gslib.h, gsinit.c, gsmain.c) + - A variable and a preprocessor macro with the same name confused +VAX C. (gxclist.c) + - Image devices with depth 2-8 and only gray shades in the palette +didn't set color_info correctly. (gsdevice.c) + +Speeds up unrotated black-and-white images further by making them render +directly into a memory device when possible. (gxdevmem.h, gsimage1.c) + +</pre> + +<h2><a name="Version3.38"></a>Version 3.38 (limited) (6/18/95)</h2> + +<p> +This release incorporates several customer-requested enhancements (cleaner +separation of the graphics library from the interpreter, option for >64K +names, true garbage collection of names, better handling of halftones on +band devices). It is intended primarily for those customers, but is +intended as a dry run for the next public release. + +<h3><a name="V3.38_Documentation"></a>Documentation</h3><pre> +Fixes bugs: + - gx_bitmap had not been updated to gx_tile_bitmap. +(drivers.doc) + +</pre><h3><a name="V3.38_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - The man page extension in the Unix makefiles was still $(manext), +not $(man1ext). (unix-end.mak) + - 'make clean' didn't remove gs_init.c. (gs.mak) + +Restructures the makefiles to better separate the language interpreters from +the graphics core. (gs.mak) + +Adds a -dNOPROMPT switch to suppress the end-of-page prompts (but still wait +for the user to type a newline). This is different from -dNOPAUSE, which +suppresses both the prompts and the wait. (gs_init.ps) + +</pre><h3><a name="V3.38_Utilities"></a>Utilities</h3><pre> + +Replaces the mergeini.ps program with an equivalent (actually slightly +better) version written in C. (gs.mak, *.mak, psfiles.doc, use.doc, +geninit.c) + +</pre><h3><a name="V3.38_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - The color DeskJet drivers wouldn't compile with a K&R compiler, +because some of the procedure definitions weren't in the restricted syntax +that ansi2knr requires. (gdevcdj.c) + - The color DeskJet drivers wouldn't compile because of a bug in +Sun's cc. (gdevcdj.c) + +Changes the BJ-10e(x) margins to be identical to those of the BJ-200. +(gdevbj10.c) + +Changes the LaserJet margins in response to a user's request. (gdevdjet.c) + +Changes the psmono driver to produce slightly larger files that execute +faster on typical Level 1 printers. (gdevpsim.c) + +Changes the psmono driver so that it does not scale the image to fit the +page size, but instead scales it to be the same physical size on the page. +THIS IS A NON BACKWARD COMPATIBLE CHANGE. However, for full-page images, it +will not have any visible effect. (gdevpsim.c) + +</pre><h3><a name="V3.38_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - There were some problems associated with printing in 32-bit +Windows environments. (gp_mswin.c) + - The IBM RS/6000 needs both <time.h> and <sys/time.h>. (time_.h) + +Adds the PDF interpreter to the standard MS Windows configuration. +(bcwin.mak) + +</pre><h3><a name="V3.38_Fonts"></a>Fonts</h3><pre> + +Fixes bugs: + - The entry for Courier-BoldItalic in cfonts.mak incorrectly named +it as Courier-Italic. (cfonts.mak) + - The files for Courier-Italic in cfonts.mak were inconsistently +named ncrri instead of ncri. (cfonts.mak) + - The rules in cfonts.mak covered only the fonts distributed with +the free versions of Ghostscript, omitting some of the standard set of 35. +(cfonts.mak) + - The maximum number of stem hints per character in Type 1 fonts +wasn't large enough for complex Asian characters. (gxtype1.h) + +Adds a -dNOFONTMAP switch to suppress loading the Fontmap file. +(gs_init.ps, gs_fonts.ps) + +</pre><h3><a name="V3.38_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - One of the GC marking routines for halftones had a typo, +possibly leading to an invalid access. (zht2.c) + - The GC could store beyond the end of the mark stack, +possibly smashing some characters of a string or name. (igc.c) + - If the allocator allocated a new ref object from a +freelist, the bookkeeping for the current ref object could get +confused. (ialloc.c) + - The GC didn't remove names properly from the hash table. +(iname.c) + - If a DOS editor added a ^Z to the end of an initialization file, +an error occurred during initialization. (gs_init.ps) + - If an initialization file had any lines longer than 128 +characters, .skipeof would get an error. (gs_init.ps) + - makepattern could create structures in global VM pointing to +structures in local VM. (zpcolor.c) + - The default color rendering dictionary didn't specify large enough +ranges for some intermediate values. (gs_lev2.ps) + - Files being freed by a restore weren't unlinked properly, leading +to dangling pointers. (zfile.c) + - The interpreter used strlen without a prototype. (interp.c) + - Indexed or Separation colors with a CIE base or alternate space +didn't work. (zcie.c) + - The Watcom C 10.0 compiler produced incorrect code for an +overlapping structure assignment. (zcsindex.c) + +Removes limit of 64K names, if EXTEND_NAMES is defined at compile +time. (*.mak, idebug.h, iminst.h, iname.h, gs.c, gsmain.c, idebug.c, +iname.c) + +Makes the garbage collector really collect names. (iname.h, inamedef.h, +isstate.h, igc.c, iname.c, isave.c) + +Restructures some files to better separate the language interpreters +from their support code. (gconfig.c, iconfig.c, iinit.c) + +Restructures some files to better separate the language interpreters +from the graphics core. (iastate.h, iastruct.h, ialloc.c) + +Allows the operands of cshow to be in either order on the stack. Adobe +interpreters apparently allow this, even though it's not documented. +(zchar2.c) + +Adds a hack in cvs to truncate non-standard operator names, rather than +giving a rangecheck, to work around the "max err string" problem in some +common error handlers. (ztype.c) + +Changes the print string for unregistered operators from operator_0x... to +@0x.... (iutil.c) + +Changes the garbage collector so it tries to allocate a large mark stack, to +avoid going into its 'slow' mode if the mark stack overflows. (igc.c) + +</pre><h3><a name="V3.38_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre> + +Fixes bugs: + - Stroked text used the text matrix, rather than just the +CTM, for scaling the line width, which could lead to inappropriately +wide lines. (gs_pdf.ps) + - Fonts based on other than a 1000-unit scale (i.e., with a +FontMatrix other than [0.001 0 0 0.001 0 0]) didn't scale Widths to +match the font scaling. (pdf_font.ps) + +Implements the PDF 1.1 color space extensions, except for Lab space. +(gs_pdf.ps, pdf_draw.ps) + +Implements the Rotate key for pages. (pdf_main.ps) + +</pre><h3><a name="V3.38_Streams"></a>Streams</h3><pre> + +Fixes bugs: + - When the garbage collector closed a file stream, the stream +incorrectly attempted to free the buffer. (stream.c) + +Separates out some stream implementations to better distinguish the +graphics core from the language interpreters. (smtf.h, sfilter1.c, +smtf.c, srld.c, srle.c) + +</pre><h3><a name="V3.38_Library"></a>Library</h3><pre> + +Fixes bugs: + - Compressing characters being entered in the cache could cause an +invalid memory access. (gsbitops.c) + - The setbbox bounding box check was slightly inaccurate. +(gsdps1.c) + - makepattern could create structures in global VM pointing to +structures in local VM. (gscolor2.h, gspcolor.c) + - Out-of-range values during CIE color conversion led to random +results. (gscie.c) + - On output devices with non-inverted Y axes (such as MS Windows), +Interpolated images would smash memory. (gsimage.c) + - 90 degree rotated zero-width images caused an invalid memory +access. (gsimage1.c) + - If #copies was zero, showpage could create bogus empty output +files. (gdevprn.c) + - PageCount didn't take #copies into account. (gsdevice.c) + - Indexed or Separation colors with a CIE base or alternate space +didn't work. (gscie.h, gscie.c) + +Implements triangular line caps and joins, in anticipation of adding +a PCL5 interpreter. (gsline.h, gxstroke.c) + +Moves some procedures around for better separation of library from +interpreter. (gsinit.c, gslib.c, gsmain.c, gsmisc.c) + +Moves the standard allocator from the interpreter to the library. +(gsalloc.h, gxalloc.h, gxobj.h, gsalloc.c) + +Starts to change the representation of paths slightly to make it possible to +identify arcs. This change is backward-compatible for all code except +callers of gx_path_add_arc. (gxpath.h, gspath1.c, gxpath.c, gxstroke.c) + +Adds some framework for keeping track of RasterOp and "transparency" in the +graphics state, although these don't actually have any effect yet. +(gsrop.h, gsropt.h, gsstate.h, gxcldev.h, gzstate.h, gsrop.c, gsstate.c, +gxclist.c, gxclread.c) + +Adds a compile-time option for using the Adobe RGB<->CMYK conversion rules. +(gxdcconv.c) + +Adds a driver procedure for identifying band devices. This change is +backward-compatible for all existing devices. (gdevmem.h, gxdevice.h, +gsdevice.c, gxclip2.c, gxclist.c, gxcpath.c) + +Speeds up gray-scale images on devices requiring banding, and enables +further optimizations, by reintroducing the distinction between banded and +non-banded devices. (gxdevice.h, gdevprn.c, gsimage1.c) + +Reduces the size of the band list for halftoned images by encoding tile +indices more compactly. (gxcldev.h, gxclist.h, gxclist.c, gxclread.c) + +Extends the band list so it can cache more than 256 halftone tiles, and to +make better decisions about tile caching. (gxcldev.h, gxclist.h, gxclist.c, +gxclread.c) + +</pre> + +<h2><a name="Version3.37"></a>Version 3.37 (limited) (5/11/95)</h2> + +<p> +Another bug fix release distributed only to customers. + +<h3><a name="V3.37_Documentation"></a>Documentation</h3><pre> +Fixes bugs: + - Some documentation about parameter lists was incorrect. +(gsparam.h) + - The documentation did not note that one cannot "pipe" PDF files +into the interpreter. (use.doc) + +Adds documentation for the BJC-600 to devices.doc. (devices.doc) + +</pre><h3><a name="V3.37_Procedures"></a>Procedures</h3><pre> + +Changes the debugging switch for OS calls from -Z0 to -Ze, and adds -Z0 for +high-level GC tracing. (use.doc, gp_unifs.c, ialloc.c, igc.c) + +</pre><h3><a name="V3.37_Utilities"></a>Utilities</h3><pre> + +Fixes bugs: + - The ps2ascii shell script included an erroneous @d. (ps2ascii) + +Enhances ps2ascii to output color and rectangle fill/stroke information if +COMPLEX is defined. (ps2ascii.ps) + +</pre><h3><a name="V3.37_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - the BJC-600 driver didn't handle BitsPerPixel correctly. +(gdevcdj.c) + +</pre><h3><a name="V3.37_Fonts"></a>Fonts</h3><pre> + +Fixes bugs: + - Some buggy Type 1 fonts confused the Type 1 font reader. +(gs_fonts.ps, gs_type1.ps, pdf_font.ps) + +</pre><h3><a name="V3.37_Interpreter_PostScript"></a>Interpreter (PostScript)</h3><pre> + +Fixes bugs: + - .registerencoding didn't accept mixedarrays, which could cause an +error if an encoding was loaded long after initialization. (zfont2.c) + - If a program did a lot of saves and restores, the garbage +collector could get invoked much too often. (iastate.h, ialloc.c, igc.c, +isave.c) + +Changes the name of the rectappend operator to .rectappend, since it isn't a +standard PostScript operator. (zdps1.c) + +</pre><h3><a name="V3.37_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre> + +Fixes bugs: + - PDF files didn't interact properly with ps2ascii. (gs_pdf.ps) + - setdash wouldn't accept a packed array. (zgstate.c) + - PDF files with incorrect generation numbers in object references +produced an error rather than a warning. (pdf_base.ps) + +</pre> + +<h2><a name="Version3.36"></a>Version 3.36 (limited) (5/4/95)</h2> + +<p> +This is a limited-distribution release for distributing bug fixes to a few +customers. + +<h3><a name="V3.36_Documentation"></a>Documentation</h3><pre> +Adds some environment variables to the man page. (gs.1) + +</pre><h3><a name="V3.36_Procedures"></a>Procedures</h3><pre> + +Adds the psmono device to all 32-bit configurations. (*.mak) + +Moves the psmono and 'bit' devices to DEVICE_DEVS12 to avoid exceeding the +120-character maximum length of the DOS command line. (*.mak) + +</pre><h3><a name="V3.36_Drivers"></a>Drivers</h3><pre> + +Changes the pgm[raw] and ppm[raw] drivers so they do *not* automatically +switch to pbm or pgm/ppm respectively if this is possible for the particular +page being rendered; adds pgnm[raw] and pnm[raw] drivers that *do* do this. +THIS IS A NON-BACKWARD-COMPATIBLE CHANGE. However, existing programs will +still work; they just won't produce the smallest and simplest possible +output. (devs.mak, gdevpbm.c) + +</pre><h3><a name="V3.36_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - A multi-level restore didn't free gstates allocated by +intermediate saves, causing some global VM to be lost until a garbage +collection. (isave.h, isave.c, zvmem.c) + +Speeds up restore by skipping the scan of the character cache if no new +names have been allocated since the save. (zfont.c) + +Extends the client API to allow for popping return values off the operand +stack. (imain.h, gs.c, gsmain.c) + +</pre><h3><a name="V3.36_Library"></a>Library</h3><pre> + +Modifies the character oversampling algorithms to help prevent dropouts. +(gsbitops.c, gschar.c) + +</pre> + +<h2><a name="Version3.35"></a>Version 3.35 (internal) (5/2/95)</h2> + +<p> +This is another internal "snapshot" version. + +<h3><a name="V3.35_Documentation"></a>Documentation</h3><pre> +Fixes bugs: + - Some of the file names in the `man' page had gotten out of date. +(gs.1) + - Two references to .PageCount hadn't been changed to PageCount. +(language.doc, devarch.doc) + +</pre><h3><a name="V3.35_Procedures"></a>Procedures</h3><pre> + +Puts writeppmfile back in the standard Unix and DV/X configurations, since +gsftopk uses it. Also puts the PDF reader in all 32-bit configurations. +(*.mak) + +Moves the BMP devices to DEVICE_DEVS11 to avoid exceeding the 120-character +maximum length of the DOS command line. (bcwin.mak, bcwin32.mak, os2.mak) + +</pre><h3><a name="V3.35_Utilities"></a>Utilities</h3><pre> + +Fixes bugs: + - unix-lpr.sh didn't handle 32-bit devices. (unix-lpr.sh) + - unix-lpr.sh still used the name .PageCount rather than PageCount. +(unix-lpr.sh) + - font2c gave an error when trying to write general procedures in +font dictionaries. (font2c.ps) + +Adds a pdf2dsc.ps utility for writing out fake DSC-compliant PostScript code +to invoke the PDF reader, for the benefit of viewer programs that aren't +PDF-aware. (unix-end.mak, pdf2dsc.ps) + +</pre><h3><a name="V3.35_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - The TIFF drivers put out incorrect PageNumber values. +(gdevtfax.c) + - Printer (and file output) devices got closed and reopened +unnecessarily when changing parameters. (gdevprn.c) + - Printer (and file output) devices didn't check for invalid formats +following a % in OutputFile. (devs.mak, gdevprn.c) + - 1-bit memory devices were not considered page devices, unlike all +other memory devices. (gsdevice.c) + - The black-and-white H-P printers didn't close the printer +properly, causing printing not to happen under MS Windows. (gdevprn.c) + - Some compilers didn't like initializing a const char * to NULL. +(gdevlbp8.c) + +Changes the X Windows driver so that if Ghostview specifies a bounding box, +this also sets ImagingBBox. (gdevxini.c) + +At the request of a customer, adds 1-, 4-, 8-, 24-, and 32-bit-deep memory +devices that store bits in 32-bit units rather than byte units. (gdevmem.h, +gxdevmem.h, gdevmem.c, gdevm1.c, gdevm2.c, gdevm4.c, gdevm8.c, gdevm16.c, +gdevm24.c, gdevm32.c) + +Adds a new MS Windows printer driver, mswinpr2, that uses a DIB rather than +a DDB. (gdevwpr2.c) + +</pre><h3><a name="V3.35_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - A routine wouldn't compile because of a bug in the SGI C compiler. +(zcsindex.c) + - Some declarations were inconsistent when compiling for segmented +environments. (gscie.c) + - A routine wouldn't compile because of a bug in the VAX C compiler. +(gscie.c) + +Turns on compiler optimization for OS/2; adds PDF support and more devices +for Win32 and OS/2. (bcwin.mak, bcwin32.mak, os2.mak) + +</pre><h3><a name="V3.35_Fonts"></a>Fonts</h3><pre> + +Fixes bugs: + - Font loading used 'setglobal' without binding it, which caused +some EPS files to signal errors. (gs_fonts.ps) + - A zero-length string with offset = 0 in a binary object sequence +caused an error. (iscanbin.c) + +Adds a LOCALFONTS switch that causes Ghostscript to load Type 1 fonts into +the current VM, rather than global VM. According to Adobe, this is what +Adobe printers (but not other interpreters, such as DPS and CPSI) do. +(gs_init.ps, gs_fonts.ps) + +</pre><h3><a name="V3.35_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - The 'note' page size command caused pages to be clipped +improperly. (gs_statd.ps) + +Adds "word" image devices. (gs_init.ps, zdevice.c) + +Starts converting the interpreter to use an explicit instance pointer. This +is very fragmentary so far and not really supported. (main.h, gs.c, +gsmain.c, iccinit.c) + +</pre><h3><a name="V3.35_Library"></a>Library</h3><pre> + +Adds "word" image devices. (gsdevice.h, gsdevice.c) + +Removes the requirement that ImagingBBox[0] and [1] be non-negative. (The +Adobe specification requires this, but Ghostscript supports more general +initial CTMs than the Adobe spec.) (gsdparam.c) + +</pre> + +<h2><a name="Version3.34"></a>Version 3.34 (internal) (4/18/95)</h2> + +<p> +This is a "snapshot" version made for internal purposes. It was never +released to anyone. + +<h3><a name="V3.34_Documentation"></a>Documentation</h3><pre> +Updates commprod.doc to be fully consistent with the AGFPL. (commprod.doc) + +</pre><h3><a name="V3.34_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - tar_x was out of date. (tar_x) + - tar_gs assumed that if any PC executables were present, gs.exe +would exist. (tar_gs) + - jpeg.mak said the current IJG version was 5b, but the makefiles +actually referred to version 5a. (jpeg.mak) + - The build rule for the LIPS III driver was incorrect. (devs.mak) + - Some definitions in the makefiles occurred out of order. +(ansihead.mak, cc-head.mak, gcc-head.mak, unixhead.mak, unixtail.mak) + - The build rule for dvx-gcc.mak was incorrect. (unix-end.mak) + +</pre><h3><a name="V3.34_Interpreter"></a>Interpreter</h3><pre> + +Restructures the CIE caches to move much more of the computation from color +mapping time to cache loading time. (zcie.c) + +</pre><h3><a name="V3.34_Library"></a>Library</h3><pre> + +Fixes bugs: + - Color conversion of 12-bit images was very slightly inaccurate. +(gxfrac.h) + +Changes the transfer function, black generation, and undercolor removal +caches so that they sample at 1024 points and don't interpolate, rather than +sampling at 256 points and interpolating. This significantly improves the +speed of colored image rendering. ****** LIMITED TO 256 POINTS BECAUSE OF +O-STACK SIZE LIMIT. ****** (gxfmap.h, gxcmap.c) + +Restructures the CIE caches to move much more of the computation from color +mapping time to cache loading time. (gscie.h, gscie.c) + +</pre> + +<h2><a name="Version3.33"></a>Version 3.33 (4/13/95)</h2> + +<p> +A few more last-minute bug fixes. This is, finally, the first public +release since 3.12. + +<h3><a name="V3.33_Documentation"></a>Documentation</h3><pre> + +Fixes bugs: + - There was a reference to "VAX with OSF/1", which doesn't exist, +and an incorrect reference to VAX with Ultrix. (make.doc) + - The Unix makefiles incorrectly stated that gsdatadir was only +relevant to `make install'. (ansihead.mak, cc-head.mak, dgc-head.mak, +gcc-head.mak) + - Notes that DV/X users should use the zip version of the JPEG +library. (jpeg.mak) + +</pre><h3><a name="V3.33_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - A command line had gotten too long for the MS-DOS shell. +(gs.mak) + - The VMS DEC C script didn't explicitly select DEC C. +(vms-decc.mak) + - The VMS MODULES.LIS omitted SPDIFF and ZFPDIFF. (modules.lis) + - The VMS script had an incorrect entry. (vms.mak) + - The `if' fix in 3.31 broke some Unix systems with different +implementations of sh. (unix-end.mak) + - The makefile definition of gscspace_h was out of order. (gs.mak) + - An extra ; got written in gconfig_.h on DV/X platforms. +(dvx-tail.mak) + - '.' was incorrectly prepended to the library search list on DV/X +platforms. (dgc-head.mak) + - The build rules for unix*.mak didn't work on DV/X. (unix-end.mak) + +Adds a description of the -c quit switch to the help message. (gs.c) + +For the DV/X platform, changes /usr/include to /djgpp/include as the place +to look for header files. I'm not sure this is always correct. +(dvx-tail.mak) + +</pre><h3><a name="V3.33_Utilities"></a>Utilities</h3><pre> + +Fixes bugs: + - ps2ascii would cause an error if given a font that didn't have an +'X' character. (ps2ascii.ps) + - ps2ascii didn't intercept the Level 2 string display operators. +(ps2ascii.ps) + +</pre><h3><a name="V3.33_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - The Stylus Color driver had an incorrect type name. (gdevstc.c) + +</pre><h3><a name="V3.33_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - -dBitsPerPixel= didn't work properly for MS Windows or OS/2 PM. +(gdevmswn.c, gdevpm.c) + - The Win32 platform didn't compile properly. (memory_.h) + +</pre><h3><a name="V3.33_Fonts"></a>Fonts</h3><pre> + +Improves the font substitution algorithm to take the face name into account +in more cases. (gs_fonts.ps) + +</pre><h3><a name="V3.33_Library"></a>Library</h3><pre> + +Fixes bugs: + - Unrotated black-and-white bitmaps with an inverted device X axis +were displaced in X. (gsimage1.c) + +</pre> + +<h2><a name="Version3.32"></a>Version 3.32 (4/7/95)</h2> + +<p> +More bug fixes. This is still not a public release. + +<h3><a name="V3.32_Documentation"></a>Documentation</h3><pre> +Further clarifies the "two-phase commit" algorithm for device put_params +procedures. (drivers.doc, gsparam.h) + +Adds a note about a compiler bug under Ultrix 4.4. (make.doc) + +</pre><h3><a name="V3.32_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - Some installation scripts could fail because some implementations +of sh take the status of an `if' condition as the status of the `if' +command. (unix-end.mak) + +Adds "maintainer-clean" as a synonym for "real-clean". (gs.mak) + +Adds a -dORIENT1 switch that defines orientation = 1 as portrait for +setpage[params]. (use.doc, gs_init.ps, gs_lev2.ps, gs_statd.ps) + +</pre><h3><a name="V3.32_Utilities"></a>Utilities</h3><pre> + +Fixes bugs: + - ps2ascii didn't redirect %stdout completely. (ps2ascii.ps) + - ps2ascii didn't preserve the local/global VM mode. (ps2ascii.ps) + - ps2ascii didn't handle fonts with an all-zero or missing bounding +box correctly. (ps2ascii.ps) + - viewpbm didn't scale the image properly. (viewpbm.ps) + +</pre><h3><a name="V3.32_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - The CGM driver wrote out an incorrect color precision value. +(gdevcgm.c) + - The SGI bitmap driver was named "sgi" rather than "sgirgb". +(gdevsgi.c) + - The PCX driver didn't round up an odd line length for gray-scale +output. (gdevpcx.c) + - The PCX driver produced incorrect output for gray-scale or 4- or +8-bit color. (gdevpcx.c) + +</pre><h3><a name="V3.32_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - The VMS MODULES.LIS file had gotten out of sync with the Unix +makefiles (again). (modules.lis) + +</pre><h3><a name="V3.32_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - Some compilers won't accept '\l', even in the false arm of a +preprocessor conditional. (scanchar.h) + - A procedure was declared with an incorrect argument type. +(zcsindex.c) + - The scaled font cache didn't copy XUIDs properly. (bfont.h, +zfont.c, zfont2.c) + - status could return true even if the file was closed. (zfile.c) + +</pre><h3><a name="V3.32_Streams"></a>Streams</h3><pre> + +Fixes bugs: + - The LZW filters were factored improperly. (modules.lis, gs.mak, +vms.mak, slzwx.h, slzwc.c, slzwd.c) + +Changes the DCTDecode filter for compatibility with Adobe implementations: + - Ignore bytes preceding the 0xff that marks the beginning of the +JPEG data. (sdctd.c) + - Set MAX_BLOCKS_IN_MCU to 64. (jpeg.mak, gsjpglib.h) + +</pre><h3><a name="V3.32_Library"></a>Library</h3><pre> + +Fixes bugs: + - The "two-phase commit" for device parameters wasn't fully +implemented. (gsiodev.c) + - Asking for a device color map before the device was opened could +cause a crash. (gsdparam.c) + - The scaled font cache didn't copy XUIDs properly. (gxfont.h, +gsfont.c) + - 90 or 270 degree rotated black-and-white bitmaps (including +bitmapped fonts such as downloaded TrueType fonts) with an inverted device Y +axis were displaced in Y. (gsimage1.c) + - On high-resolution devices, parts of regions filled with halftones +could fail to be painted. (gxclist.c) + +</pre> + +<h2><a name="Version3.31"></a>Version 3.31 (4/2/95)</h2> + +<p> +A few final bug fixes for the release. Includes significant speed +improvements for CIE color, and a first draft of a low-level CGM driver. + +<h3><a name="V3.31_Documentation"></a>Documentation</h3><pre> +Notes that the BJC600 driver also works for the BJC4000. (devs.mak) + +</pre><h3><a name="V3.31_Procedures"></a>Procedures</h3><pre> + +At the suggestion of a user, changes the default protections for installed +files on Unix and DV/X systems from 775/664 to 755/644. (*head.mak) + +At the suggestion of a user, adds a -dNOCIE switch to substitute DeviceGray +and DeviceRGB color spaces for CIEBasedA and CIEBasedABC spaces +respectively. (gs_init.ps, gs_lev2.ps) + +</pre><h3><a name="V3.31_Utilities"></a>Utilities</h3><pre> + +Changes gslp and its relatives to use ISOLatin1Encoding for output, and to +send almost all printout to stderr rather than stdout (for use as a filter +under Unix). (gslp.ps) + +</pre><h3><a name="V3.31_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - The fax/TIFF driver no longer exported gdev_fax_print_page, which +the DigiFax driver needs. (gdevtfax.c) + - The color DeskJet drivers gave an error for BitsPerPixel=3. +(gdevcdj.c) + - The "Windows printer" driver was setting its margins in points +rather than inches. (gdevwprn.c) + - The BJ10 and BJ200 drivers calculated vertical skip distances +wrong. (gdevbj10.c) + - The BJ10 and BJ200 drivers output two garbage bytes following the +initialization string. (gdevbj10.c) + +Adds a preliminary driver that produces low-level CGM output. (gdevcgml.h, +gdevcgmx.h, gdevcgm.c, gdevcgml.c) + +</pre><h3><a name="V3.31_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - The VMS files had gotten out of sync with the other makefiles +(again). (modules.lis, vms.mak) + - The MS Windows and OS/2-PM drivers hadn't been updated to handle +BitsPerPixel as a standard parameter. (gdevmswn.c, gdevpm.c) + +Removes the TIFF drivers from the Windows platform, and restores the BMP +drivers. (bcwin.mak) + +</pre><h3><a name="V3.31_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - The CIE color mapping cache could produce anomalous results +for the default (all zero values) color if some of the mapping +functions were non-linear. (zcie.c) + - MultiMaster font substitution got confused if substituted +fonts had their FontName changed. (gs_fonts.ps) + - A procedure was declared as private inconsistently. (zdevcal.c) + - Some pointer relocation procedures didn't work correctly on +systems with sizeof(T *) > sizeof(int). (istack.c) + - The freelist vector wasn't large enough to handle graphics state +objects on 64-bit systems, leading to severe memory sandbars. (iastate.h) + - The debugging messages from the allocator had gotten inconsistent +and hard to use. (ialloc.c) + - Mixing save/restore with allocation could cause the GC never to +get run. (isave.c) + +Speeds up the mapping of CIE colors. (zcie.c) + +Adds a .namestring operator for getting the string of a name without having +to copy it. (zstring.c) + +</pre><h3><a name="V3.31_Streams"></a>Streams</h3><pre> + +Fixes bugs: + - The IJG code needed a couple more flags set for IJG v6. +(gsjmorec.h) + - Some pointer relocation procedures didn't work correctly on +systems with sizeof(T *) > sizeof(int). (stream.c) + +</pre><h3><a name="V3.31_Library"></a>Library</h3><pre> + +Fixes bugs: + - The end-test for the fast case of monobit images was wrong, +leading to out-of-range memory accesses. (gsimage1.c) + - Monobit images rotated by 270 degrees displayed incorrectly. +(gsimage1.c) + - If a Type 1 font used hint replacement, some parts of the outline +before the hint replacement ignored the old hints. (gstype1.c) + - Some compilers didn't accept a variable name that was the same as +a macro with parameters. (gxht.c) + - A procedure was declared as private inconsistently. (gdevm1.c) + - Some pointer relocation procedures didn't work correctly on +systems with sizeof(T *) > sizeof(int). (gdevmem.c, gsstate.c) + - The test on FORCE_HINTS_TO_BIG_PIXELS was backwards. This bug was +supposed to have been fixed in 3.30, but somehow the fix got lost. +(gstype1.c) + - 90 degree rotated monobit images could drop some scan lines. +(gsimage*.c) + +Speeds up the mapping of CIE colors. (gscie.h, gxcmap.h, gscie.c, gxcmap.c) + +Speeds up color images (non-interpolated, 1-8 bits per component) by adding +a cache for mapped color values. (gximage.h, gsimage.c, gsimage1.c, +gsimage2.c) + +Shrinks the band list file slightly by using only as many bytes as necessary +for writing out colors, rather than always using 4 bytes. (gxclist.c, +gxclread.c) + +</pre> + +<h2><a name="Version3.30"></a>Version 3.30 (beta) (3/21/95)</h2> + +<p> +More bug fixes. The garbage collector and PDF interpreter finally appear to +work reliably. + +<h3><a name="V3.30_Documentation"></a>Documentation</h3><pre> +Fixes bugs: + - language.doc had gotten out of date. (language.doc) + +</pre><h3><a name="V3.30_Utilities"></a>Utilities</h3><pre> + +Fixes bugs: + - Changes in the handling of %stdout had broken ps2ascii. +(gs_dps1.ps, ps2ascii.ps) + +Improves ps2ascii to skip empty strings and not output redundant font +changes. (ps2ascii.ps) + +</pre><h3><a name="V3.30_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - The fax and TIFF drivers didn't free all their working storage. +(This bug was fixed in 3.27, and the fix somehow got lost.) (gdevtfax.c) + +Adds new drivers: + - sgirgb, to produce SGI RGB raster files. (gdevsgi.c) + - tiffcrle, to produce output in TIFF "CCITT 1-dimensional Huffman +RLE" format (Group 3 fax with no EOLs). (gdevtfax.c) + - tifflzw, to produce output in TIFF LZW format (using the existing +CCITTFaxEncode filter code). (gdevtfax.c) + - tiffpack, to produce output in TIFF PackBits format. (gdevtfax.c) + +</pre><h3><a name="V3.30_Interpreter_PostScript"></a>Interpreter (PostScript)</h3><pre> + +Fixes bugs: + - If the current screen was set with a halftone, setcolorscreen +wouldn't accept what currentcolorscreen returned. (gs_dps1.ps) + - debug_print_full_ref didn't print t_oparray objects correctly. +(idebug.c) + - The internal data for a font could be allocated in a different VM +space from the font dictionary, causing dangling pointers. (zfont2.c) + - definefont became confused if a program failed to delete the FID +from a re-encoded font. (This is questionable PostScript, but dvips does +it.) (zfont2.c) + - If a BuildChar procedure did a save before the setcachedevice and +a restore afterwards, the memory manager would attempt to free the cache +device after it had already been freed by the restore, leading to damaged +freelists. (gschar.c) + - setresolution (in statusdict) was ignored. (gs_lev2.ps, +gs_statd.ps) + - If a string containing a string containing a \ was passed to the +token operator, the \ was not recognized properly in a Level 2 environment. +(iscan.c) + - A couple of default dictionary sizes had become too small. +(iinit.c) + +Makes DOS EOF (control-Z, 0x1a) a self-delimiting token, like left bracket. +THIS IS A NON-BACKWARD-COMPATIBLE CHANGE, but it should not have any adverse +effects. (gs_init.ps, iscan.c, iscantab.c) + +Distinguishes arch_small_memory from arch_ints_are_short, and adds a new +-Z. switch to force small-memory table sizes regardless of actual memory +size. (dstack.h, idict.c, zpcolor.c, zvmem2.c) + +</pre><h3><a name="V3.30_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre> + +Fixes bugs: + - A page with no Contents caused an error. (pdf_main.ps) + - Executing a Form resource caused an error. (pdf_draw.ps) + - Outlines with open entries caused an error. (pdf_main.ps) + - Embedded Type 3 fonts caused an error. (pdf_draw.ps, pdf_font.ps) + - The Widths array of fonts was ignored. (pdf_font.ps) + +</pre><h3><a name="V3.30_Library"></a>Library</h3><pre> + +Fixes bugs: + - Freeing an entry in the pattern cache didn't clear the pointers to +the raster data, producing a dangling reference that confused the garbage +collector. (gxpcmap.c) + - The test on FORCE_HINTS_TO_BIG_PIXELS was backwards. (gstype1.c) + - The pattern cache bookkeeping was incorrect. (gxpcmap.c) + - Depending on the order in which pointers were relocated, the +garbage collector could incorrectly relocate pointers from the character +cache. (gxfcache.h, gsfont.c, gxccache.c, gxccman.c) + +Changes the fast case of black-and-white images so it aligns scaled images +with the device coordinate system, to improve performance. (gsimage1.c) + +Extends the coordinate transformation routines to handle absurdly large +translation values in the CTM as long as the final device device coordinates +are within fixed-point range. (gxmatrix.h, gxpath.h, gschar.c, gscoord.c, +gsmatrix.c, gxhint2.c, gxpath2.c) + +Distinguishes arch_small_memory from arch_ints_are_short, and adds a new +-Z. switch to force small-memory table sizes regardless of actual memory +size. (gdevprn.h, gxpcolor.h, gzht.h, std.h, gsfont.c, gsht1.c, gspaint.c, +gsstate.c, gxcht.c, gxht.c, gxpcmap.c) + +</pre> + +<hr> + +<h2><a name="Version3.29"></a>Version 3.29 (internal) (3/8/95)</h2> + +<p> +Another bug-fix release. This release processes all but 7 of the 500+ files +on the Adobe Acrobat Sampler CD-ROM without giving an error. The garbage +collector finally appears to be stable. This version was created for a +customer; it was not released to the general public or even to the beta test +list. + +<h3><a name="V3.29_Documentation"></a>Documentation</h3><pre> +Documents the possible need to set LD_RUN_PATH on SVR4 platforms. +(make.doc) + +Expands the description of the device life cycle, and of the constraints on +put_params procedures. (drivers.doc) + +Adds an explicit copyright notice to the Aladdin Ghostscript Free Public +License. (PUBLIC) + +Clarifies that the Win32s documentation also applies to Windows NT. +(make.doc) + +</pre><h3><a name="V3.29_Procedures"></a>Procedures</h3><pre> + +Removes the obsolete writeppmfile operator from the standard configurations. +(gs.mak) + +Changes the Watcom makefiles to work properly with Watcom C/C++ 10.0. +(make.doc, msc.mak, watc.mak, watcwin.mak, wccommon.mak) + +</pre><h3><a name="V3.29_Utilities"></a>Utilities</h3><pre> + +Adds a wftopfa utility for converting the Wadalab fonts to usable Type 0 and +Type 1 form. (wftopfa) + +</pre><h3><a name="V3.29_Fonts"></a>Fonts</h3><pre> + +Fixes bugs: + - Entries added automatically by definefont (FontInfo, ExactSize) +could cause a font dictionary to become full. (gs_fonts.ps, gs_type1.ps) + - wrfont.ps couldn't deal with very long CharStrings. (wrfont.ps) + +Makes the name of the Fontmap file an easily editable parameter. +(gs_fonts.ps) + +Adds a utility for converting the Wadalab font to usable Type 0 and Type 1 +form. (wrfont.ps, wftopfa.ps) + +</pre><h3><a name="V3.29_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - The top margin for printer (and fax) devices was computed +incorrectly, using the X resolution rather than the Y resolution. +(gdevprn.h) + - Changing the page size or resolution of a printer device closed +and reopened the device unnecessarily. (gdevprn.c) + - Changing the page size of the X11 device didn't change the initial +matrix, so (0,0) didn't wind up in the lower left corner. (gdevx.c) + - The bit devices didn't allow changing the number of bits per +pixel. (gdevbit.c) + +Adds a settable .IsPageDevice boolean device parameter to the X Windows +driver. The default value is true. (gdevx.h, gdevx.c) + +Changes the PPM driver so that it chooses between PBM/PGM/PPM on a +page-by-page basis, rather retaining the most general format ever required +by any page. (gdevpbm.c) + +</pre><h3><a name="V3.29_Interpreter_PostScript"></a>Interpreter (PostScript)</h3><pre> + +Fixes bugs: + - The current page device could be null, rather than an empty +dictionary. (igstate.h, zchar.c, zdevice.c, zdevice2.c, zgstate.c) + - The scanner didn't signal an error for names or strings that were +too long. (iscan.c) + - A missing header file upset the VAX compilers. (ztype.c) + - Some places expecting dictionary operands didn't check the type, +because they incorrectly assumed that the dict_check_read/write macro did +this. (idict.h, zdevice2.c, zht2.c, zmisc2.c) + - The definition of quit in systemdict wasn't disabled within +encapsulated jobs. (gs_lev2.ps) + - resetfile gave an error if the file was closed, rather than doing +nothing. (zfileio.c) + - The scanner attempted to free an uninitialized pointer if it +reached EOF after a / or //. (iscan.c) + - A restore in a different file than the corresponding save caused +an invalidrestore error. (gs_init.ps) + - The default value of EndOfData in RunLengthDecode streams was set +to false. (zfilter.c) + - .registerencoding didn't invoke the save machinery correctly, +leading to GC problems. (zfont2.c) + - The facility for overriding .printerror didn't work correctly. +(gs_init.ps) + - gs_run_file_open wasn't public. (gsmain.c) + - The interpreter returned e_undefined for undefined error names, +rather than the error code. (interp.c) + - Allocation in system memory (specifically, adding a block to a +stack) couldn't trigger automatic garbage collection. (interp.c, igc.c, +zvmem2.c) + - A restore in a different invocation of gs_run_string than the +corresponding save would stop reading the string. (files.h, gsmain.c, +iccinit.c, zfile.c) + - The Type 1 rasterizer state included a pointer into the middle of +an object, confusing the garbage collector. (zchar1.c, zfont1.c) + - When the garbage collector deleted a name, it didn't zero out the +string pointer. (iname.c) + - On platforms where obj_align_mod > 4, the memory manager could +access 1 beyond the end of its freelists. (iastate.h) + - makefont and scalefont didn't check the type of their font operand +soon enough. (zfont.c) + - restore didn't finalize the objects it freed. (isave.c) + - restore didn't free system VM. (isave.c) + - Freeing a ref array that occupied an entire chunk didn't free the +chunk. (ialloc.c) + +Adds a .runexec operator which implements the 'close if error' function of +run. (zfile.c, zfileio.c) + +Moves the obsolete writeppmfile operator into a separate file. (zfileio.c, +zwppm.c) + +Makes the statistics returned by the memory manager more accurate. +(ialloc.c, zvmem.c) + +Adds a (read-only) %Calendar% IODevice. (zdevcal.c) + +Adds a "hook" in the character operators to allow external code to +intervene; this is needed for a customer. (ichar.h, zchar.c, zchar2.c) + +Makes control-D (0x04) a self-delimiting token, like left bracket. THIS IS +A NON-BACKWARD-COMPATIBLE CHANGE, but it should not have any adverse +effects. (scanchar.h, iscan.c, iscantab.c) + +Changes the error stack printout so that it puts line breaks between items +iff the items are being printed with ==. (gs_init.ps) + +Uses finalization to close streams being freed. (igc.c, zfile.c, ziodev.c) + +</pre><h3><a name="V3.29_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre> + +Fixes bugs: + - Embedded Type 1 fonts that invoked save and restore while being +read caused an error. (pdf_font.ps) + - Large files that referenced a non-alphabetic font for the first +time late in the file could cause an error. (pdf_main.ps) + +</pre><h3><a name="V3.29_Streams"></a>Streams</h3><pre> + +Fixes bugs: + - SubFileDecode streams didn't copy partial matches of the EOD +string into their output. (sfilter1.c) + +Makes switching between read and write modes a stream procedure. (stream.h, +sfile.c, sfileno.c, stream.c, zfileio.c) + +Makes file streams close themselves when finalized. (We can't do this for +other streams, because finalization procedures aren't allowed to free +storage explicitly.) (stream.h, sfile.c, sfileno.c, stream.c) + +</pre><h3><a name="V3.29_Library"></a>Library</h3><pre> + +Fixes bugs: + - The obsolete files gcdefs.h and gsfile.c were still included in +the fileset. + - A number of places didn't deal with null patterns properly (p_tile +== 0). (gxdcolor.h, gspcolor.c, gxpcmap.c) + - The pattern tiling algorithm was numerically unstable, especially +if the X/YStep vectors were close to the axes. (gxcolor2.h, gspcolor.c, +gxpcmap.c) + - setdeviceparams checked the values of read-only byte array +parameters incorrectly. (gsdparam.c) + - The statistics macros in gxfill.c didn't use DO_NOTHING when +disabled. (gxfill.c) + - Changing the orientation of a device closed and reopened the +device unnecessarily. (gsdparam.c) + - ioerrors occurring when writing command lists weren't reported +properly. (gxclist.h, gxclist.c) + - Errors from device procedures weren't always propagated up to +clients. (gsimage1.c, gsimage3.c, gxclip2.c, gxclist.c) + - Overflowing the fixed-point translation values in the CTM caused a +floating point exception rather than a limitcheck. (gxmatrix.h, gscoord.c) + - charpath set the current point correctly, but didn't append a +moveto element to the path. (This mostly affected Mathematica output.) +(gzpath.h) + - Image devices mapped colors incorrectly. (gdevmem.c, gdevm16.c) + - On devices with color capability but fewer than 4 bits per pixel, +color halftones didn't work (and could cause an arithmetic exception). +(gxdither.c) + - Black-on-white memory devices didn't map colors properly. +(gdevprn.h, gxdevice.h, gxdevmem.h, gdevmem.c, gdevm1.c, gsdevice.c) + - Memory devices with a non-zero origin in their initial matrix +clipped the image improperly. (gsdevice.c) + - The Type 1 rasterizer state included a pointer into the middle of +an object, confusing the garbage collector. (gstype1.h, gxfont1.h, +gxtype1.h, gstype1.c, gxhint2.c) + - The band rasterizer could produce garbled output for images +(including characters) on 64-bit architectures. (gxclread.c) + - Bounding boxes (for pathbbox and setbbox) could be slightly +inaccurate. (gsmatrix.c) + - On 64-bit architectures, halftone tiles less than 16 bits wide +were handled incorrectly. (gxclist.c) + +Adds an .IsPageDevice boolean device parameter (normally read-only). +(gsdparam.c) + +Removes the library code for implementing the obsolete writeppmfile +operator. (gswppm.c) + +Makes the default matrix (for initmatrix and defaultmatrix) a settable +parameter in the graphics state. (gscoord.h, gzstate.h, gscoord.c, +gsdevice.c, gsdparam.c) + +Makes the statistics returned by the memory manager more accurate. +(gsmemory.h) + +Adds a compile-time flag to choose whether or not to force Type 1 hints to +"big pixel" boundaries when oversampling. (gstype1.c) + +Changes the .PageCount device parameter back to PageCount, because the +change broke some scripts. (gsdparam.c) + +Adds optimization for 90 degree rotated images with pure colors. +(gximage.h, gsimage.c, gsimage1.c) + +Changes the band rasterizer so that replicated halftone tiles are written on +the band list in unreplicated form. (gsbitops.h, gxcldev.h, gsbitops.c, +gxclist.c, gxclread.c, gxht.c) + +Changes the .HWBitsPerPixel device parameter to BitsPerPixel. (drivers.doc, +language.doc, gdevcdj.c, gdevstc.c, gsdparam.c) + +</pre> + +<h2><a name="Version3.28"></a>Version 3.28 (beta) (2/13/95)</h2> + +<p> +Another bug-fix beta release. The number of bugs being fixed in each of +these sub-releases does exceed the number of new bugs introduced, but the +latter number is discouragingly high. + +<h3><a name="V3.28_Documentation"></a>Documentation</h3><pre> +Adds some information about handling VMS file attributes for files +transferred by FTP. (use.doc) + +</pre><h3><a name="V3.28_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - unix-gcc.mak said the static linkage switch for SunOS was -Bstatic +rather than -static. (unix-gcc.mak) + - Some dependency lists in gs.mak were out of date. (gs.mak) + +</pre><h3><a name="V3.28_Utilities"></a>Utilities</h3><pre> + +Fixes bugs: + - markhint.ps didn't check for protected fonts. (markhint.ps) + +</pre><h3><a name="V3.28_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - The cdj driver had a byte/char agreement problem. (gdevcdj.c) + - The cdj driver attempted to initialize a dynamic array. +(gdevcdj.c) + +Removes the setting of InputAttributes and OutputAttributes from the H-P +drivers, since this causes more problems than it solves. (gdevdjet.c) + +</pre><h3><a name="V3.28_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - makeoperator assigned incorrect attributes to operators. (bug +introduced in 3.27) (opdef.h, iinit.c, iutil.c, zmisc.c) + +</pre><h3><a name="V3.28_Library"></a>Library</h3><pre> + +Fixes bugs: + - gs_makeimagedevice didn't set the caller's pointer to the newly +created device. (bug introduced in 3.27) (gsdevice.c) + - There were still some mismatches between char * and byte * values. +(gsdparam.c) + - The halftone replication algorithm could produce inappropriately +large replicated masks. (gxht.c) + - stroke usually did the wrong thing for degenerate (single-point) +subpaths. (gxstroke.c) + +</pre> + +<h2><a name="Version3.27"></a>Version 3.27 (beta)(withdrawn) (2/8/95)</h2> + +<p> +Yet another bug-fix beta release. This release had so many serious problems +(the most serious being at least one changed file that the release tool +failed to include in the fileset) that it was withdrawn less than a day +after it was issued. + +<h3><a name="V3.27_Documentation"></a>Documentation</h3><pre> +Fixes bugs: + - The NEWS for 3.26 didn't mention the fact that the stdxxx stream +interface used by MS Windows, OS/2, and Macintosh implementations had +changed. (NEWS) + - The file public.doc wasn't distributed with the previous fileset. + +Brings the NeXTSTEP documentation up to date for NeXTSTEP releases 3.2 and +subsequent. (make.doc) + +</pre><h3><a name="V3.27_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - Some dependency lists in gs.mak were out of date. (gs.mak) + - A 'fi;' was missing in the Unix install script. (unix-end.mak) + - There was no VMS build script for the PDF options. (vms.mak) + - The VMS script used CC_QUALI instead of CC_QUAL in several places. +(vms.mak) + +</pre><h3><a name="V3.27_Utilities"></a>Utilities</h3><pre> + +Fixes bugs: + - ps2epsi's usage prompt referred to "pstoepsi". (ps2epsi) + - ps2epsi set PATH and LOCALPATH unilaterally. (ps2epsi) + +Comments out the sample usage line at the end of viewjpeg.ps. (viewjpeg.ps) + +</pre><h3><a name="V3.27_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - The fax and tiff drivers didn't free all of their working storage. +(gdevtfax.c) + +Adds user-contributed drivers for the BJC 600 and ESC/P printers. +(devs.mak, gdevcdj.c) + +</pre><h3><a name="V3.27_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - Some necessary casts of string parameters to (const byte *) were +omitted. (gp_mswin.c, gp_os2.c) + +Adds the psmono and bit* drivers, and removes the p*m drivers, in the OS/2, +32-bit MS-DOS, and 32-bit Windows configurations. (bcwin32.mak, os2.mak, +watc.mak) + +</pre><h3><a name="V3.27_Fonts"></a>Fonts</h3><pre> + +Fixes bugs: + - The Fontmap for Ultrix had somehow become slightly incorrect. +(Fontmap.Ult) + +Removes the font file names from the dependency lists in cfonts.mak. This +makes cfonts.mak readily usable with any set of fonts, but it also means +that it will always run font2c, rather than being able to avoid this if the +.c file is up to date. (cfonts.mak) + +</pre><h3><a name="V3.27_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - Some operators could fail if the stdxxx streams weren't currently +open. (files.h, zfileio.c, ziodev.c) + - setpagedevice didn't handle unrecognized keys properly. +(gs_setpd.ps) + - The value returned for the HWColorMap device parameter was +allocated incorrectly, confusing the garbage collector. (iparam.c) + - Typing ahead at the >>showpage<< prompt no longer caused all +further pages to be processed without stopping. (gs_init.ps) + - Setting DEVICEWIDTHPOINTS or DEVICEHEIGHTPOINTS on the command +line caused a typecheck. (gs_init.ps) + - The garbage collector didn't handle halftone threshold arrays +properly. (zht2.c) + - setdefaulttimeouts caused an error on Level 2 systems. +(gs_lev2.ps) + - cvi and cvr weren't equivalent to token followed by a type check. +(iscan.h, iscannum.h, iscan.c, iscannum.c, ztoken.c, ztype.c) + - In Level 2 systems, image and colorimage didn't allow 12 bits per +sample. (zpaint.c) + - If debugging was enabled, the garbage collector printed spurious +error messages about the allocator objects not being in a chunk. (ialloc.c) + - restore didn't reset the count of operator procedures, so the +operator procedure table could fill up. Fixing this required splitting the +op_array_table into a global table and a local table. (opdef.h, iinit.c, +iutil.c, zmisc.c) + - .forgetsave could leave a dangling pointer in the memory manager, +causing an access error. (ialloc.c, isave.c) + - Freed objects weren't always marked as freed, which could confuse +the memory validator. (ialloc.c) + - .forgetsave didn't mark inner chunk headers as free, leading to +access errors. (isave.c) + +Changes the representation of operator procedures so that they point +directly to their definition in the op_array_table. (iref.h, opdef.h, +idebug.c, igc.c, igcref.c, interp.c, zmisc.c) + +Removes .makeglobaloperator. (zmisc.c) + +Adds patches to discard some common garbage produced by H-P-oriented +applications and drivers. (gs_init.ps) + +Changes the >>showpage<< prompt so that if the input reaches EOF, the +interpreter still stops after the next >>showpage<<, rather than processing +all subsequent pages. This is a consequence of the bug fix that +automatically reopens the stdxxx files. + +Adds an optional dictionary parameter for the RunLengthEncode/Decode +filters, to allow specifying EndOfData. The default is true. (zfilter.c) + +Adds ByteTranslateEncode/Decode filters. (zfilter2.c) + +</pre><h3><a name="V3.27_Streams"></a>Streams</h3><pre> + +Fixes bugs: + - The K > 0 option of the CCITTFaxDecode filter switched back to 2-D +encoding if an output buffer boundary fell in the middle of a 1-D line, and +signalled an error if an input buffer boundary fell in the middle of an EOL. +(scfd.c) + +Adds an EndOfData flag to the RunLengthEncode/Decode filters. If true, RLE +generates 128 as EOD, and RLD recognizes it; if false, RLE does not mark +EOD, and RLD ignores 128. (srlx.h, gxclist.c, gxclread.c, sfilter1.c) + +Adds ByteTranslateEncode/Decode streams. (sbtx.h, sfilter2.c) + +</pre><h3><a name="V3.27_Library"></a>Library</h3><pre> + +Fixes bugs: + - There were some mismatches between char * and byte * values. +(gsdparam.c) + - Failure to round a scaling coordinate caused one-for-one +black-and-white images to render slower than they should. (gsimage.c) + - Setting PageSize without setting HWResolution could cause an +invalid memory access. (gsdparam.c) + - The garbage collector didn't handle halftone threshold arrays +properly. (gxht.h, gsht.c, gsht1.c) + +</pre> + +<h2><a name="Version3.26"></a>Version 3.26 (beta) (2/1/95)</h2> + +<p> +Yet another bug-fix beta release, still not ready for public release. + +<h3><a name="V3.26_Documentation"></a>Documentation</h3><pre> +Fixes bugs: + - The description of device properties had gotten out of sync with +the code. (language.doc) + +Splits off documentation specific to the Aladdin (non-GNU) release into a +separate file. (readme, public.doc, unix-end.mak) + +Adds a pointer to a collection of other free fonts (including some Cyrillic +ones) available on the net. (public.doc) + +</pre><h3><a name="V3.26_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - On VMS systems with both VAX C and DEC C installed, the build script +used VAX C rather than DEC C. (vms.mak) + - zfdecode.c didn't have a build rule. (gs.mak) + - Several macros in the makefile were used before they were defined. +(gs.mak) + - Several macros in the makefile were used without being defined. +(gs.mak) + +Replaces the gssetdev, gssetmod, and gsaddmod scripts with more variants of +echogs. (echogs.c, gs.mak) + +</pre><h3><a name="V3.26_Utilities"></a>Utilities</h3><pre> + +Fixes bugs: + - The ps2ascii shell script passed a -f flag to the shell, which not +all shells recognize. (ps2ascii) + +</pre><h3><a name="V3.26_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - Due to a typo in an initialization string, the H-P printers didn't +reset the top margin to zero. (gdevdjet.c) + +Adds InputAttributes and OutputAttributes entries to the H-P drivers. (This +should probably be generic to all printers.) (gdevdjet.c) + +Replaces the contributed Epson Stylus Color driver with a newer version. +(devices.doc, gdevstc.c) + +</pre><h3><a name="V3.26_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - DEC C complained about 'abs' and 'exit' not being declared. (x_.h) + - gp_mswin.c and gp_os2.c wouldn't compile. (gp_mswin.c, gp_os2.c, +ziodev.c) + +</pre><h3><a name="V3.26_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - The default CIE rendering dictionary gave everything a magenta tint. +(gs_lev2.ps) + - Changing HWResolution and PageSize in the same call of +setpagedevice produced an incorrect HWSize. (gsdparam.c) + - .putdeviceparams didn't accept all the keys that .getdeviceparams +returned. (gsdparam.c) + - The default handler for interrupt and timeout errors didn't push a +current object (command) on the stack. (gs_init.ps) + - The garbage collector didn't handle strings larger than 64K +properly. (iastate.h, ialloc.c, igcstr.c) + +Adds media matching and Policy consultation to the implementation of +setpagedevice. (gs_setpd.ps) + +Adds a MaxGlobalVM system parameter. (zmisc2.c) + +</pre><h3><a name="V3.26_Streams"></a>Streams</h3><pre> + +Fixes bugs: + - The CCITTFaxEncode filter could access a byte beyond the end of +the allocated area. (scfe.c) + - The CCITTFaxDecode filter could get an ioerror if a buffer +boundary fell in exactly the wrong place. (scfd.c) + +</pre><h3><a name="V3.26_Library"></a>Library</h3><pre> + +Fixes bugs: + - The garbage collector didn't trace colored halftones properly. +(gzht.h) + - The garbage collector didn't relocate the bitmap pointers in +halftone caches properly. (gzht.h, gxht.c) + +Adds the ability to transmit dictionaries through the param_list mechanism +(specifically, as device parameters). This change is +non-backward-compatible only for implementors of parameter lists, which only +exist within the Ghostscript core. (gsparam.h, iparam.h, iparam.c) + +Removes the InitialMatrix device property. (gsdparam.c) + +</pre> + +<h2><a name="Version3.25"></a>Version 3.25 (beta) (1/24/95)</h2> + +<p> +Yet another bug-fix beta release. There are still at least half a dozen +significant known bugs to be fixed before a public release. + +<h3><a name="V3.25_Documentation"></a>Documentation</h3><pre> +Notes that on Unix systems, one should not edit 'makefile', but should edit +the individual subfile and run tar_cat. THIS IS A NON-BACKWARD-COMPATIBLE +CHANGE. (make.doc) + +Adds information on the Macintosh implementation. (readme) + +</pre><h3><a name="V3.25_Procedures"></a>Procedures</h3><pre> +Fixes bugs: + - make clean failed on Unix systems where rm -f requires at least one +file name. (gs.mak) + - math_.h was omitted from many dependency lists. (gs.mak) + +</pre><h3><a name="V3.25_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - The X Windows and MS Windows draw-line routines couldn't possibly +produce sufficiently correct output (since the interface only provides integer +coordinates). (gdevx.c, gdevwddb.c) + +In response to patent-related actions by Unisys and CompuServe, removes the +GIF driver. (*.mak) + +Changes dci_std_color (and std_device_std_color_* and prn_device_std_*) so +that if the number of bits per pixel is 32, the device is defined as CMYK +rather than RGB. (gxdevice.h) + +Removes the tseng8 device, which is no longer useful. (devs.mak, gdevsvga.c) + +Adds pseudo-alpha support to the SVGA drivers, via the TextAlphaBits and +GraphicsAlphaBits device parameters. (gdevsvga.h, gdevsvga.c) + +Adds a user-contributed driver for the Epson Stylus Color printer. (devs.mak, +gdevstc.c, devices.doc) + +</pre><h3><a name="V3.25_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - The VMS build scripts had gotten out of sync (again). (vms*.mak) + +</pre><h3><a name="V3.25_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - The emulator name array was incorrectly declared const in one place. +(gs.c) + - A closed file could incorrectly appear to be 'eq' to another file +(open or closed). (iutil.c) + - If %stdin/%stdout/%stderr was ever closed, it couldn't be +reopened. (gs_btokn.ps, gs_init.ps, files.h, zfile.c, zfileio.c, zfilter.c, +zfproc.c, ziodev.c) + +Changes (almost) all the operator routines to 'static'. (z*.c) + +</pre><h3><a name="V3.25_Library"></a>Library</h3><pre> + +Fixes bugs: + - The raster value for replicated tiles in the halftone cache was +incorrect, causing unaligned memory accesses. (gxht.c) + - stroke and strokepath could produce slightly inaccurate output +(leading to slight visible anomalies) as a result of stroke adjustment. +(gxstroke.c) + - Attempting to draw an arc with zero radius could cause a numeric +exception. (gspath1.c) + - Setting the Orientation of a device to null resulted in actually +setting it to a random value. (gsdparam.c) + - charpath, stringwidth, and cshow attempted to remap the current +color unnecessarily. (gschar.c) + +Adds the ability to trace calls on the sqrt function (and possibly other math +functions in the future.) (math_.h, gsmisc.c) + +Adds additional interrupt checks in the banding code. (gxclist.c, gxclread.c) + +</pre> + +<h2><a name="Version3.24"></a>Version 3.24 (beta) (1/17/95)</h2> + +<p> +This was supposed to be a public release, but too many bugs showed up in 3.23, +so this is another bug-fix beta release. This is the first release with a +working PDF reader. + +<h3><a name="V3.24_Documentation"></a>Documentation</h3><pre> +Notes that Solaris requires using installbsd instead of install. (make.doc) + +</pre><h3><a name="V3.24_Procedures"></a>Procedures</h3><pre> + +Changes 'make mostlyclean' so that it doesn't delete the Ghostscript +executable (but deletes everything else that 'make clean' does). (gs.mak) + +Changes the link list generator so it eliminates duplicate library requests. +(genconf.c) + +Factors the interpreter further so as to include less unnecessary PostScript +support in the PDF interpreter. (gs.mak, zpath.c, zpath1.c) + +Adds a printout of the available language interpreters to the -h message. +(genconf.c, gs.c, iinit.c, gs.mak) + +</pre><h3><a name="V3.24_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - The alternate X drivers used a cast in an initializer, causing a +compilation error on some platforms. (gdevxalt.c) + +Adds a driver for the LaserJet IIID, including duplex printing if specified by +the Duplex page device parameter. (gdevdjet.c) + +Adds Orientation to the bit device. (gdevbit.c) + +</pre><h3><a name="V3.24_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - There was an extraneous pfen-> in the NT file system module, causing +a compilation error. (gp_ntfs.c) + - The DLL code referred to an obsolete symbol a_foreign. (gsdll.c) + - The VMS build scripts omitted the LaserJet 4 driver. (vms-*.mak) + - The VMS build scripts had several other minor errors. (vms.mak) + +</pre><h3><a name="V3.24_Fonts"></a>Fonts</h3><pre> + +Fixes bugs: + - Defining a font alias in global VM with a name that was a string in +local VM caused an error. (gs_fonts.ps) + - The font compiler referred to an obsolete symbol a_foreign. +(font2c.ps) + +</pre><h3><a name="V3.24_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - There was an extraneous '#' before an extern declaration. +(gsmain.c) + - The interpreter could (incorrectly) attempt to expand the e-stack. +(istack.h, interp.c, istack.c) + - zfproc.c called memcpy but didn't include memory_.h. (zfproc.c) + - A garbage collection occurring within a 'save' would often smash +memory. (igc.c) + - If the last character returned by the procedure of a procedure-based +filter was \r, readline could get an endless loop. (zfileio.c) + - Saving a change to a ref member of a structure confused the garbage +collector. (isave.h, isave.c, zdict.c) + - The -Zu debugging printout could cause an access error under rare +circumstances. (isave.c) + - Save objects could get allocated in global VM, causing dangling +references. (zvmem.c) + - The vmsave object created by the interpreter for a save didn't get +freed properly if the memory manager created an invisible save level, which +could cause the next garbage collection to crash. (zvmem.c) + - 'run' always printed an error message, rather than letting the +top-level control loop do it. (gs.c, gs_init.ps) + +Adds support for duplex devices. (gxdevice.h, gsdparam.c, gs_statd.ps, +gs_setpd.ps) + +Adds the beginnings of support for CID-keyed fonts. (gs_cidfn.ps) + +Changes the format of the stack dump printed for errors, to make it easier to +read. (gs_init.ps) + +</pre><h3><a name="V3.24_Interpreter_PostScript"></a>Interpreter (PostScript)</h3><pre> + +Fixes bugs: + - The .local/global allocation operators always allocated in system +VM. (zsysvm.c) + - setpage[params] caused an error. (gs_lev2.ps) + - If an error occurred during a cshow or (x|y|xy)show, the interpreter +freed the enumerator twice. (zchar.c, zchar2.c) + +Changes setpageparams so that orientation = 0 means portrait. This is not +compatible with AGFA's convention for roll-feed devices, but it is compatible +with the more common cut-sheet printers. (gs_statd.ps) + +Adds meaningful values for the Emulator resource. (gsmain.c, gs_res.ps) + +Makes -Z? validate the state of memory before and after save and restore. +(ialloc.h, igc.h, ialloc.c, igc.c, ilocate.c, zvmem.c) + +</pre><h3><a name="V3.24_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre> + +Fixes bugs: + - The Unix install script didn't install the PDF files if they were +present. (unix-end.mak) + - PDF to PostScript conversion didn't work at all. (It still doesn't +work very well.) (pdf_2ps.ps, pdf_main.ps) + - Images with an Indexed color space and no Decode entry caused an +error. (pdf_draw.ps) + - The 'Page <n>' messages were printed even if QUIET was set. +(pdf_main.ps) + +Changes the interpreter so that when it encounters an unknown operator, it +prints an error message and continues, rather than signalling an error. +(pdf_base.ps) + +Makes F a synonym for f if there is nothing on the operand stack, to +compensate for a bug in some Adobe software. (pdf_base.ps) + +Changes pdfgetpage so it uses 1-origin rather than 0-origin indexing. THIS IS +A NON-BACKWARD-COMPATIBLE CHANGE. (pdf_main.ps) + +</pre><h3><a name="V3.24_Streams"></a>Streams</h3><pre> + +Fixes bugs: + - The Group 3 2-D and Group 4 encoders produced incorrect output if a +scan line beginning with a black pixel was followed by a scan line beginning +with a white pixel. (scfe.c) + - A SubFileDecode filter with a count of 1 and a non-empty EOD string +would smash memory. (sfilter1.c) + +Updates the DCT filters so they will work with the latest version (5a) of the +IJG library. (*.mak, jpeg.mak, sjpegerr.c) + +</pre><h3><a name="V3.24_Library"></a>Library</h3><pre> + +Fixes bugs: + - A call with integer parameters to a procedure with floating point +arguments didn't work on non-ANSI compilers. (gsimage.c) + - Arcs could get turned into polygons if the scaling values in the CTM +were very large and the radius was (in user space coordinates) very small. +(gspath.c) + - The current point was defined when a BuildChar procedure was called. +(This bug was documented as fixed in version 2.2!) (gschar.c) + +Adds support for Orientation and Duplex page device parameters, for those +devices that support these. (gdevprn.h, gxdevice.h, gsdevice.c, gsdparam.c) + +</pre> + +<h2><a name="Version3.23"></a>Version 3.23 (beta) (1/5/95)</h2> + +<p> +This is almost entirely a bug fix release. It also includes a largely working +PDF reader. This is intended as the beta test release for the next public +release. + +<h3><a name="V3.23_Documentation"></a>Documentation</h3><pre> +Fixes bugs: + - COPYLEFT, COPYING, NEWS, PUBLIC, README, and the standard Fontmap +were omitted from the 3.22 fileset. + +Documents the use of the -oldc switch to work around a compiler crash on +the DECstation. + +Expands and clarifies the documentation for building the DesqView/X version +with djgcc. (make.doc) + +Adds documentation on the "600x300" H-P inkjet printers, explaining why +this alleged higher resolution is not available. (devices.doc) + +Adds to the PUBLIC license a warning that it is not a GNU License, and a +requirement to include a copy of or a pointer to the License in any written +material. (PUBLIC) + +Documents the fact that Ghostscript *does* attempt to look up files in the +current directory first. (use.doc) + +</pre><h3><a name="V3.23_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - In VMS.MAK, .JPEG should have been changed to .JPEG-5 in a few +places. (vms.mak) + +Adds the pjxl300 driver to all configurations that include the other color +DeskJet drivers. Replaces pjet and pjetxl with pj and pjxl. (*.mak) + +Makes 'run' recognize PDF files if the PDF reader is included. +(pdf_main.ps) + +</pre><h3><a name="V3.23_Utilities"></a>Utilities</h3><pre> + +Fixes bugs: + - viewjpeg.ps needed the test for languagelevel = 2 at the +beginning of the file. (viewjpeg.ps) + - prfont.ps used 'min', which isn't a standard PostScript operator. +(prfont.ps) + - prfont.ps created Encoding vectors that weren't 256 elements +long. (prfont.ps) + +Adds the gsdj500 script to the installation list. (unix-end.mak) + +Changes the Unix "line printer" shell scripts to add the date to the page +header. (gsbj, gsdj, gsdj500, gslj) + +Changes ansi2knr so that it will work properly on systems where the ctype +macros don't handle 8-bit characters correctly. (ansi2knr.c) + +</pre><h3><a name="V3.23_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - Some compilers don't allow casts in initialization expressions. +(gdevx.c, gdevxalt.c) + - The cdj drivers didn't initialize the color_info structure +properly. (gdevcdj.c) + +Adds another alternate X Windows driver, x11mono, that is a black-and-white +device. (devs.mak, gdevxalt.c) + +Adds a user-contributed driver for the Apple Imagewriter LQ. (devs.mak, +gdevadmp.c) + +</pre><h3><a name="V3.23_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - The VMS MODULES.LIS file had gotten out of sync with the makefile +(again); GDEVABUF and GSBITOPS were missing. (modules.lis) + - The VMS script file had gotten out of sync with the makefile +(again). (vms.mak) + - The MS Windows platform code didn't recognize Windows 95 (Windows +4.0) as equivalent to Windows NT. (gp_mswin.c) + - File name enumeration didn't work on OS/2 or win32. (gp_ntfs.c, +gp_os2.c) + - -sOutputFile= didn't work under MS Windows. (gp_mswin.c) + +Changes the SCO Unix direct frame buffer driver so it generates in-line +instructions to access the frame buffer, for a dramatic speed improvement. +(gdevpcfb.h, gdevsco.c) + +</pre><h3><a name="V3.23_Fonts"></a>Fonts</h3><pre> + +Fixes bugs: + - If a font couldn't be found in the Fontmap, a recursion loop +sometimes occurred. (gs_fonts.ps) + - Aliases for global fonts weren't automatically created as global, +possibly leading to a recursion loop. (gs_dps1.ps, gs_fonts.ps) + - If a font was loaded into global VM within an inner save, the restore +deleted it from FontDirectory but not from SharedFontDirectory, causing a +possible recursion loop. (gs_dps1.ps, gs_fonts.ps, idict.h, idict.c, zdict.c) + +Further improves the algorithm for substituting for unknown fonts. +(gs_fonts.ps) + +</pre><h3><a name="V3.23_Interpreter_PostScript"></a>Interpreter (PostScript)</h3><pre> + +Fixes bugs: + - zcontrol.c had an assignment of const char * to const byte *, +which some compilers don't like. (zcontrol.c) + - Setting an Indexed color space based on a CIE space caused an +attempt to free a random block of memory. (zcsindex.c) + - Some compilers don't like mixing conditionals and casts in +initialization expressions. (iref.h) + - Some calculations of table sizes for string garbage collection +didn't work if sizeof(long) != 4, leading to smashed strings. (iastate.h, +ialloc.c, igcstr.c) + - Strings longer than about 7000 bytes smashed their chunk header +and confused the garbage collector. (ialloc.c) + - Some compilers needed iccfont.c to include strimpl.h. +(iccfont.c) + - The obsolete file zcspace2.c was still included in the fileset. + - If the command line included any @-files that required searching +the library path, a limitcheck would occur. (zfile.c) + - The insideness testing operators caused a memory access error, +because the procedure vector hadn't been updated to provide a default +get_alpha_bits procedure. (zupath.c) + - gcheck didn't check for stack underflow. (zvmem2.c) + - cleardictstack could fail to clear the dictionary stack if the +stack had overflowed into additional blocks. (zdict.c) + - If the '-' switch was selected, resources weren't released +properly on exit. (gs.c) + - Setting a Pattern color space based on a CIE space caused an +invalid memory access. (zcsindex.c) + - The garbage collector didn't treat refs properly on machines with +short ints. (igcref.c) + - Operators with more than 16 arguments could break the +interpreter. (interp.h, iinit.c, interp.c) + - save/restore didn't restore the setting of the current allocator +VM (local/global). (isstate.h, isave.c) + - stdpre.h declared exit as an extern, instead of letting gsmain.c +declare it. (stdpre.h, gsmain.c) + - gs.c used fputs to print help messages rather than fprintf. +(gs.c) + - Interrupts failed to re-execute the operation that was +interrupted. (interp.c) + - Low-resolution CMYK devices didn't use separate screens for each +color plane as the default. (gs_init.ps) + - filterdict wasn't getting undef'ed at the end of initialization. +(gs_init.ps) + - gstate operations were broken (bug introduced in 3.02). +(zdevice2.c) + - resourceforall didn't remove the resource dictionary from the +dictionary stack when calling the client-supplied procedure. (gs_res.ps) + - currentcolor with an Indexed color space returned a real rather +than an integer. (zcolor2.c) + - setshared / setglobal left the stack in an unobvious state if +they were given a non-Boolean argument. (gs_dps1.ps) + - sethalftone followed by currenthalftone returned an invalid value. +(zht2.c) + - Empty strings produced spurious garbage collector error messages. +(gsstruct.h, scommon.h, igc.c, igcstr.c, iname.c) + - The garbage collector didn't trace Separation color spaces properly. +(gscsepr.c) + +Changes defineresource so that it does not, by default, make instances +read-only. (gs_res.ps) + +Adds .{local,global}{array,dict,packedarray,string} operators for creating +objects in a specific VM space. (zsysvm.c, gs_dps1.ps) + +Adds definitions of setpage and setpageparams to statusdict. (gs_setpd.ps, +gs_statd.ps) + +Alleviates some performance problems in the garbage collector. (igc.c) + +</pre><h3><a name="V3.23_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre> + +Fixes bugs: + - PDF files that used filters with parameters caused a typecheck +error because the arguments to 'filter' were reversed. (pdf_base.ps) + - The (undocumented) PDF 1.1 ability to specify link and annotation +destinations indirectly was not supported. (pdf_main.ps) + - The (undocumented) PDF ability to specify a null page in a link +destination was not supported. (pdf_main.ps) + - The PDF encodings weren't loaded properly in a system with both +PS Level 2 and PDF features. (gs_res.ps, gs_init.ps) + - If the next line after a stream keyword was blank, the line +wasn't skipped, which matters for binary data. (pdf_base.ps) + - A Q operator with no matching q operator caused an error. +(pdf_draw.ps) + - The text position wasn't preserved across a fill or stroke +operator. (gs_pdf.ps, pdf_draw.ps) + - Embedded Type 3 fonts didn't work. (pdf_base.ps, pdf_draw.ps, +pdf_main.ps) + - Masked images with no Decode value had their polarity inverted. +(pdf_draw.ps) + - Embedded Type 1 fonts referenced from within a stream didn't +work. (pdf_font.ps) + +Changes the PDF code so that it automatically recognizes PDF files as such. +(pdf_main.ps) + +Splits out the PixelDifference filters as a separate "feature". (gs.mak) + +</pre><h3><a name="V3.23_Streams"></a>Streams</h3><pre> + +Fixes bugs: + - Closing the primary input stream caused an invalid memory access. +(stream.c) + - Increasing the size of a buffer within a save resulted in a +dangling reference after the restore. (files.h, sfilter.h, zfile.c, +zfilter.c) + - The garbage collector didn't properly trace streams that referenced +strings directly. (stream.h, stream.c, ziodev.c) + +</pre><h3><a name="V3.23_Library"></a>Library</h3><pre> + +Fixes bugs: + - An extraneous \ upset some compilers. (gdevabuf.c) + - Uncolored Patterns that completely filled their bounding box +caused an invalid memory access. (gspcolor.c) + - If a color image required clipping, black or white pixels might +be rendered with incorrect (random) colors. (gxcpath.c) + - Reference counts for color spaces were sometimes set too high, so +they would only be freed by restore or garbage collection. (gscolor.c) + - The character cache could get confused if the Encoding for the +character wasn't a name. (gschar.c) + - Character outlines were always rendered with flatness = 0, +causing very bad performance for large characters. (gzstate.h, gschar.c, +gsimage.c, gxfill.c, gxstroke.c) + - If a device (presumably uninitialized) had a +color_info.num_components of zero, an invalid memory access could occur. +(gsdparam.c) + - Intersecting clipping paths that are not both rectangular didn't +properly set the outer box of new clipping path, leading to unnecessary +computation. (gxcpath.h, gxacpath.c, gxcpath.c) + - A call passed false instead of NULL. (gschar.c) + - On machines where sizeof returns a long, genarch.c failed. +(genarch.c) + - xfonts were consulted, incorrectly, even for stroked characters. +(gxccman.c) + - gstate/currentgstate/setgstate didn't work properly. (gsline.c, +gsstate.c) + - On CMYK devices needing halftoning, colors with C = M = Y were +always converted to gray shades. (gxcmap.c) + - Isolated horizontal lines, or the horizontal edges of rectangles, +could get drawn with one or both end pixels missing. (gxfill.c) + +Changes the character cache back so it oversamples characters at small +sizes. (gschar.c) + +Changes all occurrences of (void)x to discard(x), and defines discard in +stdpre.h as a cast to void, to make it possible to pacify compilers that +don't accept this construct for some kinds of x. (gpcheck.h, stdpre.h, +store.h, gdevmswn.c, gp_mswin.c, gscoord.c, gxclread.c, igc.c, sfile.c, +sfileno.c, zcie.c, zht2.c, ziodev.c, zmisc1.c) + +Increases the size of the halftone cache on large-memory machines from 35K +to 100K. This substantially improves halftoning performance at higher +resolutions. (gxht.c) + +</pre> + +<h2><a name="Version3.22"></a>Version 3.22 (beta) (11/30/94)</h2> + +<p> +This is primarily a bug fix release. It also includes limited anti-aliased +graphics capability. This release was not distributed to the public. + +<h3><a name="V3.22_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - The definition of ghost_h was misplaced, so changes in it or its +antecedents didn't force recompilation of its dependents. (gs.mak) + +Actually implements the -Z+ switch, for forcing small stack blocks. +(interp.c) + +Makes the -dSAFER switch disable the %pipe syntax for file names, even for +reading. (gs_init.ps) + +</pre><h3><a name="V3.22_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - The dfax drivers incorrectly set EncodedByteAlign to false. +(gdevdfax.c) + - softwareValue and dateTimeValue were declared as byte rather than +char. (gdevtfax.c) + +</pre><h3><a name="V3.22_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - The VMS DEC C compilers declare delete in unixio.h, and doesn't +declare unlink anywhere. (stdio_.h) + - The VMS compilers declare malloc and free in stdlib.h, which +wasn't being included in malloc_.h. (malloc_.h) + - The SCO Unix C compiler needs both <sys/time.h> and <time.h>. +(time_.h) + - The VMS compilers declare abs in stdlib.h, which wasn't being +included anywhere. (gshtscr.c) + - The definition for A4 paper in VMS-AXP.MAK was incorrect. +(vms-axp.mak) + +Renames VMS-AXP.MAK as VMS-DECC.MAK, with some changes that make it +appropriate for DEC C on both VAX and AXP platforms. (vms-axp.mak => +vms.decc.mak) + +</pre><h3><a name="V3.22_Fonts"></a>Fonts</h3><pre> + +Fixes bugs: + - gs_kanji.ps got an invalidaccess error. (gs_kanji.ps) + +</pre><h3><a name="V3.22_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - An off-by-1 test in the roll operator caused it to smash the +stack if the operand stack had overflowed into additional blocks. +(zstack.c) + - The default CIE color rendering dictionary didn't assume a +reasonable intermediate (XYZ) space. (gs_lev2.ps) + - CIE color mapping tables weren't traced properly by the garbage +collector. (gscie.h, gscie.c, zcie.c) + - If the very last character of a file was a ^M, the scanner +(incorrectly) signaled a syntaxerror. (iscan.c) + - If an operator could return both a typecheck and a +stackunderflow, it always returned a stackunderflow, which doesn't match +the behavior of Adobe interpreters. (opcheck.h, idparam.c, interp.c, +iutil.c, z*.c) + - astore, dictstack, and execstack could return a spurious +invalidaccess error (or fail to detect an invalid access) if the operand +stack had overflowed into additional blocks. (istack.c) + - The garbage collector didn't relocate pointers to names! (Bug +introduced in 3.20.) (iname.h) + - If the dictionary stack overflowed into additional blocks, the +cached value pointer for a name could get set incorrectly, and also not get +relocated by the garbage collector. (idict.c) + - If the dictionary stack overflowed into additional blocks, the +post-GC fixup of cached value pointers in names could cause an addressing +error. (igc.c) + - With the -Z? switch set, the garbage collector could incorrectly +report that objects or strings weren't in any chunk. (igc.c) + - << /a 1 /a 2 >> /a get gave the value 2 rather than 1. +(gs_init.ps) + - Numbers in binary object sequences and encoded number arrays +didn't work properly on machines where sizeof(short) != 2 or sizeof(long) +!= 4. (ibnum.c) + - The put operator for dictionaries allowed null as a key. +(idict.h, idict.c) + - >> didn't give an error if there were an odd number of values on +the stack above the next mark. (gs_init.ps) + - Operations that explicitly freed ref objects (setting a CIE +colorspace, resizing a dictionary, popping a block off a stack) could +corrupt storage. (ialloc.c) + - The -Z@ switch, which fills freed blocks with a recognizable bit +pattern, could incorrectly overwrite freed blocks in previous save levels, +causing invalid memory accesses. (ialloc.c) + - Since streams freed by a restore weren't marked as free, they +could confuse the garbage collector and lead to invalid memory accesses. +(zfile.c) + - If one of the built-in dictionaries overflowed during +initialization, no error was reported -- entries were simply discarded. +(iinit.c) + - If the level2.dev feature was combined with certain other +features, the current languagelevel was 2 when some gs_*.ps files were +loaded, causing them to load incorrectly. (gs_btokn.ps, gs_setpd.ps) + - If readline read a line that ended with only a CR (no LF) +followed by an end-of-file, it incorrectly closed the stream. (zfileio.c) + +Adds a .cond operator, similar to the Lisp multi-arm conditional. +(zcontrol.c) + +Adds a .makeglobaloperator operator, allowing the definition of operator +procedures in local VM that turn into global operators, provided the save +level is zero. (iref.h, opdef.h, iinit.c, interp.c, zmisc.c) + +Note: the fix for returning typecheck vs. stackunderflow requires that all +operators (or other code) that uses return_error(e_typecheck) to indicate +an incorrect object type on the operand stack must change this to +return_op_typecheck(op), where op points to the operand. THIS IS A +NON-BACKWARD-COMPATIBLE CHANGE. + +Implements string array and name array parameters for parameter lists. +(gsparam.h, iparam.c) + +Brings filterdict inside the INITIAL_DICTIONARIES conditional. (iinit.c) + +Adds a .currentscreenlevels operator that returns the number of +distinguishable halftone levels. (zht.c) + +</pre><h3><a name="V3.22_Streams"></a>Streams</h3><pre> + +Fixes bugs: + - The 2-D case of CCITTFaxDecode could get confused by an input +data buffer boundary that fell immediately after a horizontal code. +(scfd.c) + - The LZW decoder didn't detect invalid data unless DEBUG was +selected at build time. (slzwd.c) + +</pre><h3><a name="V3.22_Library"></a>Library</h3><pre> + +Fixes bugs: + - The clipping region accumulator could refer to a clipping +rectangle even after it had been freed. (No effect on execution unless the +-Z@ switch was selected.) (gxacpath.c) + - setbbox expanded the bounding box, but didn't place a limit on +further path elements, if the current path wasn't empty. (gsdps1.c) + - setbbox didn't make sufficient allowance for rounding. +(gsdps1.c) + +Implements the ProcessColorModel parameter (read-only) for all devices. +(gsdparam.c) + +Adds a gs_currentscreenlevels procedure that returns the number of +distinguishable halftone levels. (gsht.c) + +</pre> + +<h2><a name="Version3.21"></a>Version 3.21 (beta) (11/17/94)</h2> + +<p> +This is primarily a bug fix release. It also includes a substantial +improvement in the Type 1 font hinting algorithms. This release was not +distributed to the public. + +<h3><a name="V3.21_Documentation"></a>Documentation</h3><pre> +Fixes bugs: + - The `man' page referred to gnu.ghostscript.bug rather than +comp.lang.postscript. (gs.1) + +Documents the special entries in operator definition tables that allow +switching dictionaries. (opdef.h) + +</pre><h3><a name="V3.21_Procedures"></a>Procedures</h3><pre> + +Moves the definition of JSRCDIR to the individual platform makefiles, to +make it easier to change on platforms that don't have file links. (*.mak) + +</pre><h3><a name="V3.21_Utilities"></a>Utilities</h3><pre> + +Fixes bugs: + - ansi2knr didn't recognize that a line ending with } couldn't be a +function definition. (ansi2knr.c) + - ps2epsi always returned an empty bounding box. (ps2epsi, +ps2epsi.bat) + +</pre><h3><a name="V3.21_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - The bitrgb device had an invalid depth of 3. (gdevbit.c) + +Replaces the color mapping code in the X driver with a much faster +algorithm, courtesy of Tim Theisen. (gdevx.h, gdevx.c, gdevxini.c) + +</pre><h3><a name="V3.21_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - Two variable names were misspelled. (gdevpm.c, gp_mswin.c) + - It wasn't possible to compile a non-DLL configuration under OS/2. +(os2.mak) + - Compilation under Microsoft C/C++ 8.0 gave errors. (gp_mswin.h, +gp_mswin.c, gshtscr.c) + +Adds some more devices to the OS/2 makefile. (os2.mak) + +</pre><h3><a name="V3.21_Fonts"></a>Fonts</h3><pre> + +Fixes bugs: + - wrfont.ps, and hence bdftops, didn't write out the FontType or +PaintType. (Bug introduced since 2.6.1) (wrfont.ps) + - wrfont.ps omitted a 'begin' and 'end', causing -! or -| to be +undefined when the font was loaded. (Bug introduced since 2.6.1) +(wrfont.ps) + +</pre><h3><a name="V3.21_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - make_tasv_old called make_tasv_new with extra arguments. +(store.h) + - currentcacheparams only returned 2 values instead of 3. +(zfont.c) + - ustroke popped one element too many off the stack if a matrix was +supplied. (zupath.c) + - inu[eo]fill popped one element too many off the stack. +(zupath.c) + - The color rendering dictionary was initialized to null rather +than a valid dictionary. (gs_lev2.ps) + - An invalid IODevice resource named "9" got created. (gs_res.ps) + - bytesavailable often caused an error rather than returning -1. +(zfileio.c, stream.c) + - The insideness testing operators always returned true if the +aperture was defined by a user path rather than a point. (zupath.c) + - If INITIAL_DICTIONARIES was defined in the makefile, the +definition of the initial_dictionaries array was missing a comma. +(iinit.c) + - Even if userdict appeared in INITIAL_DICTIONARIES, gs_init.ps set +its maxlength to 200. (gs_init.ps) + - Setting a CIE color space left a garbage value on the stack. +(zcie.c) + - If a file or filter was opened and then closed, opening a file +subsequently within a 'save' could lead to a memory access error in the +garbage collector. (zfile.c) + - Setting an Indexed or Separation color space could cause a crash +either in the garbage collector or when printing out the e-stack. +(icsmap.h, zcsindex.c, zcssepr.c) + - Invoking a filter with an invalid data source or sink could cause +a memory access error (bug introduced in 3.20). (zfilter.c) + - Invoking stringwidth on a font whose BuildChar procedure did a +save could cause a memory manager error or infinite loop, because +stringwidth attempted to use an inapplicable shortcut. (gschar.c) + - The bounding box for rendering stroked Type 1 characters didn't +take square caps and miter joins into account. (gs_type1.ps) + - Invoking filter with DCTDecode or DCTEncode could cause an +addressing error if no dictionary argument was supplied. (zfdctd.c, +zfdcte.c) + - The Generic resource, the Font resource, and half a dozen +resources with no predefined instances all shared the same Instances +dictionary. (gs_res.ps) + - The temporary null device allocated for stringwidth was never +freed. (gschar.h, gschar.c, zchar.c) + - Internal operators, and structures that might be freed on stack +unwinding, could "escape" from the e-stack. (zcontrol.c, ztype.c) + - makefont and scalefont didn't properly handle a font whose +Encoding had been changed. (bfont.h, zfont.c, zfont2.c) + - Type 1 fonts with PaintType = 2 incorrectly checked for an xfont. +(gxfont.h, gschar.c, gsfont.c, zchar1.c, zfont1.c, zfont2.c) + - Specifying a string argument with -d...=(...) or -d...=<...> +would cause an invalidaccess error. (gs.c) + - The environment for encapsulated jobs didn't rebind quit to stop +in userdict. (gs_lev2.ps) + - restore didn't deal properly with open files on the e-stack. +(zvmem.c) + - Even with the '-' switch, Ghostscript would try to read ahead in +the input stream rather than processing input character-by-character. +(ziodev.c) + - If an error occurred with a unreadable dictionary on any stack, +the standard error printer would get into an error loop and exit the +interpreter. (gs_init.ps) + - The for_roots macro in igc.c used ap rather than mem as its +second formal parameter. (This typo had no effect on the executable +program.) (igc.c) + - If saving the stacks for an error caused a GC request, a value +could get stored into an improper variable on the C stack, causing havoc. +(interp.c) + - setdash checked to make sure that the distance array had read +access; Adobe interpreters don't check this. (zgstate.c) + - The roots for gs_run_string and gs_interpret weren't registered +properly, which could cause a dangling reference in the case of a restore +whose save had been done earlier. (gsmain.c, interp.c) + +Adds an OpenOutputFile Boolean device parameter for printer devices; if +true, the device opens the OutputFile at the time the device is opened, +instead of waiting for the first showpage. This helps with synchronization +when the OutputFile is a pipe. (gdevprn.h, gdevprn.c) + +Changes the BEGIN/END_OP_DEFS macros to require an explicit { and } at each +use. (gsmain.c, interp.c, z*.c) + +Arranges things so that the operators that the interpreter handles +specially are assigned the first N operator indices [internal change only]. +(interp.h, iinit.c, interp.c) + +Changes the operators max and min to .max and .min, to avoid conflicts with +PostScript programs that use these names for variables and also use 'bind'. +THIS IS A NON-BACKWARD-COMPATIBLE CHANGE from programs that depend on +'bind' binding in these operators; however, we have also defined procedures +max and min that just call the operators, which should take care of any +ordinary code. (*.ps, zrelbit.c) + +</pre><h3><a name="V3.21_Streams"></a>Streams</h3><pre> + +Fixes bugs: + - The pfb_state pointer in the eexecDecode filter state wasn't +marked as traceable for the garbage collector. (sfilter.h) + - The eexec decoding filter could access invalid memory or return +garbage under some conditions. (Bug introduced in 3.12.) (zmisc1.c) + - The eexec decoding filter would incorrectly ask for more input if +the output buffer was full. (seexec.c) + +</pre><h3><a name="V3.21_Library"></a>Library</h3><pre> + +Fixes bugs: + - Some compilers reserve the word 'try'. (gshtscr.c) + - Some compilers don't like line continuations (\) within a +preprocessor macro formal parameter list. (gdevprn.h, gxdevice.h) + - Memory devices created with an inverted palette (0=white, +1=black) interchanged white and black in fill operations. (gdevmem1.c) + - The 'bits' variable in mem_mono_copy_mono was unused on +little-endian machines. (gdevmem1.c) + - Some garbage collector procedures were declared 'private' +inconsistently. (gscie.c) + - The new anti-aliased text capability accidentally caused all +characters to be oversampled. (gschar.c) + - Type 1 fonts with PaintType = 2 and StrokeWidth = 0 came out with +many pixels missing because of oversampling. (gschar.c) + - Type 1 font stem hints were not being processed correctly. +(gstype1.h, gxtype1.h, gstype1.c, gxhint2.c, gxhint3.c, gxpath.c) + - The tracing message for 9/7 composite fonts incorrectly +identified them as 1/7 fonts. (gschar0.c) + - If a 1/7 or 9/7 composite font was a child of a non-modal font, +the font number of the child font was computed incorrectly. (gschar0.c) + +Splits up the various memory devices into one file per depth [internal +change only]. (gdevm*.c) + +</pre> + +<h2><a name="Version3.20"></a>Version 3.20 (beta) (10/31/94)</h2> + +<p> +This version contains some support for a PDF interpreter; however, the PDF +code itself is not ready for release yet. It also includes anti-aliased text +capability. This release was not distributed to the public. + +<h3><a name="V3.20_Documentation"></a>Documentation</h3><pre> +Notes that the FAQ has moved to smallo.ruhr.de:pub/ghost/gs.faq. (readme) + +Documents various implementation limits. (language.doc) + +</pre><h3><a name="V3.20_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - bcp.dev wasn't included in the list of dependencies for +level1.dev. (gs.mak) + +Changes the printout of version numbers so that it is always A.BC, +rather than A.B if C is zero. (gs.c, gs_init.ps) + +</pre><h3><a name="V3.20_Utilities"></a>Utilities</h3><pre> + +Fixes bugs: + - font2c didn't correctly handle Metrics or Metrics2 dictionaries +whose entries were arrays rather than scalars. (font2c.ps, ccfont.h, +iccfont.c) + - font2c didn't handle CDevProc. (font2c.ps, ccfont.h, iccfont.c) + - genconf could get a stack overflow on small machines. +(genconf.c) + +Changes mergeini.ps so it can take arguments on the command line specifying +the input and output files. (mergeini.ps) + +Adds a gsdj500 shell script to parallel gsdj500.bat. (gsdj500) + +</pre><h3><a name="V3.20_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - The X driver didn't mask dynamically assigned colors properly, so +it could request the same color over and over again. (gdevx.c) + +Adds two alternate X Windows drivers, for helping debug drivers with other +color models: + - x11alpha, an RGB device with 4-bit alpha capability (for + copy_alpha only); + - x11cmyk, a 1-bit-per-component CMYK device. +(devs.mak, gdevxalt.c) + +Changes the left margin of the lj4dith driver to 0.26". (gdevcdj.c) + +</pre><h3><a name="V3.20_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - If <sys/time.h> didn't exist, time_.h didn't always include +<time.h>. (time_.h) + - The OS/2 platform wouldn't compile. (gdevpm.c) + - The auxiliary VMS command files sometimes got blank lines +inserted when going through EOL conversion. (vms.mak; delete gs_.com) + - The VMS makefiles didn't include the Level 1 operators in +level1.dev. (vms.mak) + - The VMS gcc makefile didn't handle undefined DEVICE_DEVSn +variables properly. (vms*.mak) + - The VMS makefiles didn't recognize DEVICE_DEVS{1,2,5,7}. +(vms.mak) + +At the request of a Unix expert, changes all the Unix shell scripts to use +exec gs ... "$@" rather than gs ... $*. (gsnd, gsbj, gsdj, gslj, gslp) + +Modifies the JPEG library so that it uses 4K less of the automatic data +segment in 16-bit environments. (bcwin.mak, jpeg.mak, sjpeg.c, sjpegerr.c) + +Adds the bmp drivers back into the 16-bit MS Windows executable, since they +will fit now. (bcwin.mak) + +</pre><h3><a name="V3.20_Fonts"></a>Fonts</h3><pre> + +Makes the font substitution algorithm recognize the word Roman as calling +for a serif font. (gs_fonts.ps) + +</pre><h3><a name="V3.20_Interpreters"></a>Interpreters</h3><pre> + +Fixes bugs: + - The fix in 3.13 for the inexact function values at 0 didn't work. +(zcontrol.c) + - Level 1 configurations referenced an undefined procedure +gs_currenthalftone. (gsht.c, gsht1.c) + - Specifying any device properties (including -r and -g) on the +command line caused an error. (gs_init.ps) + - The forward declaration of cfont_name_array_create was +incorrect. (iccfont.c) + - save and restore could get called before the graphics state stack +had been initialized properly. (gs_mex_e.ps) + - Some encodings weren't loaded properly. (gs.mak, gs_mex_e.ps, +gs_mro_e.ps, gs_pdf_e.ps, gs_wan_e.ps) + - Zero-height images were allowed, but zero-width images +weren't. (zpaint.c) + - Neither zero-width nor zero-height images popped their +arguments from the operand stack. (zpaint.c) + - lib_file_fopen overwrote its file name argument, causing havoc +with @-files. (gxiodev.h, gdevpipe.c, gsiodev.c, zfile.c) + - The garbage collector got confused if there were any arrays or +dictionaries with 8K or more elements. (igcref.c) + - >> could leave the stacks in a questionable state if it failed. +(gs_init.ps) + - The Category resource category didn't implement undefineresource. +(gs_res.ps) + - When the token operator read the last token from a string, it +left an unchanged string on the stack instead of an empty string. +(stream.c) + - noaccess didn't give an invalidaccess error when applied to the +permanent dictionaries. (dstack.h, idict.c, ztype.c) + - Overflowing the exec stack wasn't handled properly. (istack.h, +istack.c) + - The garbage collector cleared the cached value pointers in names, +causing interpretation to slow down substantially. (idict.c, igc.c, +iname.c) + - 0 dict created a dictionary with a maxlength of 1. (idict.c) + +Changes the default size of the execution stack from 150 to 250, to match +the Adobe "typical" value. (interp.c) + +Moves the operator definitions out of the automatic data segment. +(opdef.h, iinit.c, z*.c) + +Adds operators that allow creation of objects in system space: +.systemvmstring, .systemvmarray, .systemvmpackedarray, .systemvmdict, +.systemvmcheck. (zsysvm.c) + +Renames gcdefs.h as gscdefs.h. + +Allocates names in system space rather than global space. (gsmain.c) + +Changes the memory manager so that it allows programs to create objects in +system space. (iref.h, iutil.h, ivmspace.h, ...) + +Changes the implementation of filters so they appear in their own +dictionary named filterdict. (gs_init.ps, z*.c) + +Changes the implementation of color spaces so each one has its own +setcolorspace procedure, defined in a new dictionary named +colorspacedict. (gs_lev2.ps, z*.c) + +Adds a new debugging switch, $, that always initializes all fields in a +ref, in order to keep Purify happy. (store.h) + +</pre><h3><a name="V3.20_Library"></a>Library</h3><pre> + +Fixes bugs: + - The page size for image devices was always set to (0, 0). +(gsdevice.c) + - The PageSize computation in gx_default_put_params could overflow +on 16-bit machines. (gsdparam.c) + - An omitted 'static' on an initialized array caused a compiler +error. (gxccman.c) + - If interpolated image rendering was requested but not +actually carried out, gs_image_cleanup could attempt to free a random +pointer. (gsimage.c) + - Some compilers only retain 23 characters of procedure names, but +some procedure names weren't unique in the first 23 characters. (gscie.c, +gscolor.c, gscolor1.c, gxcmap.c) + - The garbage collector didn't trace device colors properly. +(gxdcolor.h, gzht.h, gsimage1.c, gspcolor.c, gxcht.c, gxcmap.c, gxdraw.c, +gxht.c) + - For CMYK devices, the transfer functions were being applied to +the CMYK values rather than the complemented RGBW values. (gxcmap.c) + - Memory devices used their own color mapping procedures rather +than those of the target; this could cause incorrect colors for patterns on +devices with more than 1 bit per pixel. (gxdevmem.h, gdevmem1.c, gdevpm.c, +gdevprn.c, gdevwdib.c, gschar.c, gsdevice.c, gxccache.c, gxccman.c, +gxclip2.c, gxclread.c, gxpcmap.c) + - The garbage collector didn't trace image enumerators properly in +the image_render_simple case. (gsimage.c) + - stroke produced different-looking output for thin (zero-width) +lines depending on whether or not clipping was invoked. (gxstroke.c) + - If a clipping list changed from multiple rectangles to a single +rectangle, it could fail to clip properly thereafter. (gxacpath.c) + +Adds two new device procedures: alpha_bits and copy_alpha. This change is +backward-compatible for all existing devices. (gdevmem.h, gxdevice.h, +gsdevice.c, gxclip2.c, gxclist.c, gxcpath.c) + +Changes the implementation of color halftones so that, when appropriate, it +generates a single cell and uses the device tile_rectangle procedure. +(gzht.h, gsht.c, gxcht.c, gxclist.c, gxclread.c) + +Adds partial support for the Orientation page device parameter. +(gsdevice.c) + +Adds support for anti-aliased characters using 2 or 4 bits of alpha. +(gxfcache.h, gschar.c, gxccache.c) + +</pre> + +<hr> + +<h2><a name="Version3.13"></a>Version 3.13(private) (10/3/94)</h2> + +<p> +This release was created for a customer; it was not distributed to the +public. + +<h3><a name="V3.13_Documentation"></a>Documentation</h3><pre> +Notes in make.doc that the file names in the IJG archive distributed with +Ghostscript do not include the gsA.BC/ prefix. (make.doc) + +Adds a cross-reference to make.doc to the Watcom makefiles. (watc.mak, +watcwin.mak, wccommon.mak) + +</pre><h3><a name="V3.13_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - The makefile rule for gconfig.h et al had a couple of blank lines +in the middle of it. (gs.mak) + +</pre><h3><a name="V3.13_Utilities"></a>Utilities</h3><pre> + +Fixes bugs: + - wrfont.ps didn't add a lenIV entry to the Private dictionary if +it was needed. (wrfont.ps) + +Adds a packfile.ps utility that allows compressing multiple files into a +single file for environments with very little permanent storage. +(gs_pfile.ps, packfile.ps, wrfont.ps) + +</pre><h3><a name="V3.13_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - The {tiff,fax}{g32d,g4} devices could produce incorrect output. +See under Streams below. + - The dfax drivers referred to the obsolete structure member +EncodedEOLAlign. (gdevdfax.c) + +Changes the default bit order for TIFF/F output to little-endian, which is +apparently what the majority of TIFF decoders like best. The bit order for +the fax drivers is still big-endian. (gdevdfax.c, gdevtfax.c) + +</pre><h3><a name="V3.13_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - The VMS build script used -a rather than -w for creating +gconfig_.h. (vms.mak) + - The VMS build script didn't create gconfigv.h. (vms.mak) + - The VMS Fontmap had incorrect entries for the Bitstream Charter +fonts. (fontmap.vms) + - The VMS MODULES.LIS file assumed the JPEG library files were in +directory JPEG rather than JPEG-5. (modules.lis) + +</pre><h3><a name="V3.13_Fonts"></a>Fonts</h3><pre> + +Fixes bugs: + - Using DISKFONTS resulted in an invalidaccess error. +(gs_fonts.ps) + +</pre><h3><a name="V3.13_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - The standard transfer function considered gray values above +roughly 0.994 equivalent to white; 0.999 is a better value. (gs_init.ps) + - The transfer, black generation, and undercolor removal functions +gave slightly inexact results for an input value of 0. (zcolor.c, +zcontrol.c) + - setpagedevice gave an /undefined error if it did not recognize a +key, rather than ignoring the key. (zdevice.c, gs_init.ps, gs_lev2.ps, +gs_setpd.ps) + +Changes .putdeviceparams to take an additional argument, a Boolean that +says whether or not unrecognized keys should be reported as /undefined +errors. THIS IS A NON-BACKWARD-COMPATIBLE CHANGE; however, no user-written +code should be calling .putdeviceparams. (zdevice.c) + +</pre><h3><a name="V3.13_Streams"></a>Streams</h3><pre> + +Fixes bugs: + - The Group 3 2-D and Group 4 fax encoders could emit incorrect +output. (scfe.c) + - The algorithm for constructing optimal Huffman codes could +produce invalid codes in some rare cases. (shcgen.c) + +</pre><h3><a name="V3.13_Library"></a>Library</h3><pre> + +Fixes bugs: + - Rectangles closed with lineto rather than closepath weren't +recognized as rectangles. (This only affected performance, not +functionality.) (gxpath2.c) + - The xfont lookup_font procedure could get called with a matrix +whose translation components had never been initialized. (gxccman.c) + - Some compilers don't allow \ in the formal argument list of a +preprocessor macro. (gdevprn.h, gxdevice.h) + +</pre> + +<h2><a name="Version3.12"></a>Version 3.12 (9/29/94)</h2> + +<p> +This is another bug fix release, the first Level 2 release that we believe +is reasonably reliable. + +<h3><a name="V3.12_Documentation"></a>Documentation</h3><pre> + +Adds some text warning about making copies of the makefile. (make.doc) + +</pre><h3><a name="V3.12_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - There were a number of unnecessary dependencies on $(MAKEFILE) in +gs.mak, left over from before the existence of gconfigv.h. (gs.mak) + - JPEGSRC was defined in gs.mak rather than in jpeg.mak. (gs.mak, +jpeg.mak) + +Changes the version numbering scheme back to A.BC, since people seem to be +adapting to the change, and this allows using the version number directly +as a MS-DOS directory name. (gconfig.c, gdevtfax.c, gs.c, gs_init.ps) + +Updates the JPEG library to version 5 (official release) of the IJG code. +(jpeg/*, jpeg.mak) + +</pre><h3><a name="V3.12_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - The TIFF/F driver put out invalid PageNumber and Software +entries. (gdevtifs.h, gdevtfax.c) + - The TIFF/F and fax Group 3 2-D drivers used K=3 and K=5 instead +of K=2 and K=4. (gdevtfax.c) + - The TIFF/F and fax Group 3 2-D drivers emitted improperly aligned +output. (See under Streams below.) + - The MS Windows driver didn't resize the window properly in +response to changing the device parameters. (gdevmswn.c) + +Because of complementary bugs in various C compilers, changes all the +non-printer devices to use a different set of macros. (gdevmem.h, +gdevpcfb.h, gdevprn.h, gdevsvga.h, gxdevice.h, gdev{3b1, bgi, herc, l256, +pe, pm, sun, vglb, wddb, wdib, wprn, x}.c, gsdevice.c, gxacpath.c, +gxclip2.c, gxcpath.c, gxpcmap.c, zupath.c) + +Changes the X11 driver to ignore the "margins" specified by Ghostview. +This is apparently necessary for Ghostview to handle landscape display +properly. (gdevxini.c) + +Adds a WindowID parameter to the X11 device, to allow setting the window +for the output. (gdevx.h, gdevx.c, gdevxini.c) + +</pre><h3><a name="V3.12_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - The definition of BEGINFILES in os2.mak occurred too late in the +file to have the desired effect. (os2.mak) + +</pre><h3><a name="V3.12_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - Updating the list of allocated file objects at a restore didn't +clear the prev pointer of the new head, which could cause the garbage +collector to encounter an invalid pointer. (Bug introduced by .forgetsave +in 3.0.3.) (zfile.c) + +</pre><h3><a name="V3.12_Streams"></a>Streams</h3><pre> + +Fixes bugs: + - The CCITTFaxEncode filter with K > 0 and EncodedByteAlign = true +incorrectly aligned the 1-D/2-D bit as the last bit of a byte, rather than +the first bit. (scfx.h, scfe.c) + - eexec could loop indefinitely under certain conditions. +(seexec.c) + - eexec's algorithm for recognizing text vs. binary encoding didn't +work properly in some cases that don't conform to the Adobe Type 1 Font +Format documentation. (seexec.c) + - Closing a stream didn't clear out the strm and state pointers, +which could cause invalid accesses by the garbage collector. (stream.c) + +</pre><h3><a name="V3.12_Library"></a>Library</h3><pre> + +Fixes bugs: + - fill_loop could loop indefinitely under certain conditions. +(Introduced by a bug fix in 3.1.) (gxfill.c) + - fill/eofill sometimes failed to paint parts of a region. +(Introduced by a bug fix in 3.1.1.) (gxfill.c) + - Non-convex clipping paths sometimes omitted thin horizontal +slivers of the region. (Probably introduced by the "thin graphics" fix in +3.1.) (gxacpath.c) + +</pre> + +<h2><a name="Version3.1.1"></a>Version 3.1.1 (9/25/94)</h2> + +<p> +This is primarily a bug fix release. It was originally intended for some +commercial licensees, but beta testers found too many problems with it. + +<h3><a name="V3.1.1_Documentation"></a>Documentation</h3><pre> + +Fixes bugs: + - NEWS didn't indicate that there was a non-backward-compatible +change in the gx_device structure -- specifically, that l_margin, +b_margin, r_margin, and t_margin were replaced by macros named +dev_l_margin(dev), etc. (news) + +Describes the two-phase commit requirement for device put_params +procedures. (drivers.doc, gsparam.h) + +</pre><h3><a name="V3.1.1_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - The new S macro in genarch.c didn't work on compilers that do +macro substitution within string constants (which is forbidden by the ANSI +standard). (genarch.c) + +</pre><h3><a name="V3.1.1_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - Driver put_params implementations didn't observe a "two-phase +commit" discipline; this could lead to the current device in the graphics +state being closed, and other inconsistencies. (gsparam.h, gxdevice.h, +iparam.h, gdevbit.c, gdevcdj.c, gdevmswn.c, gdevpcfb.c, gdevpm.c, +gdevprn.c, gdevx.c, gsdevice.c, gsdparam.c, zdevice.c, ziodev2.c, zmisc2.c) +THIS IS A NON-BACKWARD-COMPATIBLE CHANGE; however, it only affects +put_params implementations, of which there are few. + +NOTE THE NON-BACKWARD-COMPATIBLE CHANGE IN THE gx_device STRUCTURE UNDER +'Documentation' ABOVE. (gdevescp.c, gdevsj48.c, gdevsppr.c, gdevxini.c) + +</pre><h3><a name="V3.1.1_Platforms"></a>Platforms</h3><pre> + +Ensures that the Unix makefiles all include all the variants of TIFF/F and +fax drivers. (ansihead.mak, cc-head.mak, gcc-head.mak) + +</pre><h3><a name="V3.1.1_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - Most of the contents of statusdict were missing when +running a Level 2 system in Level 1 mode. (zmisc2.c) + +</pre> + +<h2><a name="Version3.1"></a>Version 3.1 (9/20/94)</h2> + +<p> +This release finally includes a usable subset implementation of +setpagedevice, including all the machinery needed to address the +long-standing "margins" problems. + +<h3><a name="V3.1_Documentation"></a>Documentation</h3><pre> + +Fixes bugs: + - t_oparray objects weren't identified as behaving differently +depending on whether they were marked executable. (iref.h) + - drivers.doc had gx_color_value instead of gx_color_index in +the description of color mapping. (drivers.doc) + +Updates drivers.doc to reflect the change from static_procs to +std_procs in the gx_device structure. (drivers.doc) + +</pre><h3><a name="V3.1_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - The commands for building the JPEG library used rm instead +of rm -f. (jpeg.mak) + +</pre><h3><a name="V3.1_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - The X Windows driver hadn't been updated to reflect some +name changes in members of the gx_color_info structure. (gdevx.h, +gdevx.c, gdevxini.c) + +Changes all non-printer drivers so that they use the new std_device_body +macros. (gdev*.c) + +Adds a print_page_copies procedure for printer drivers, allowing the +driver to receive num_copies. (gdevprn.h, gdevprn.c) + +</pre><h3><a name="V3.1_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - ref_memory_enum/reloc_ptrs were declared inconsistently. +(ialloc.c) + - If the operand of restore was invalid, the restore did +nothing, instead of giving a typecheck. (zvmem.c) + - In Level 2, the margins and setmargins compatibility +operators were defined incorrectly in terms of current/setpagedevice. +(gs_lev2.ps) + +Enables .makeoperator to make local operators as well as global ones. +(opdef.h, iinit.c, zmisc.c, zpacked.c) + +Finishes implementing the TransferFunction entry in halftone +dictionaries. (zht1.c, zht2.c) + +Adds .set/currentfilladjust operators for access to the fill +adjustment parameter in the graphics state. (zgstate.h) + +Removes the deviceinitialmatrix operator. (zdevice.c) + +Changes defaultmatrix from a procedure to an operator. (zmatrix.c) + +Sets the fill adjustment to 0.5 for high-resolution devices, effectively +implementing Adobe's any-part-of-pixel filling rule. (gs_init.ps) + +Implements a small but useful subset of setpagedevice. (gs_lev2.ps) + +</pre><h3><a name="V3.1_Streams"></a>Streams</h3><pre> + +Fixes bugs: + - The eexec decoder incorrectly concluded that its data was +in hex form if the first data character was whitespace. (seexec.c) + +</pre><h3><a name="V3.1_Library"></a>Library</h3><pre> + +Fixes bugs: + - Thin graphics (e.g., lines or rectangles) with small angles +relative to the X axis rendered with many points missing. (gxdraw.c, +gxfill.c) + - The character cache rejected oversampled characters if the +scaled-up size was too large, even if the scaled-down size wasn't. +(gxchar.h, gschar.c, gxccache.c, gxccman.c) + - A call on sqrt with an integer argument didn't promote it +explicitly to double, which is required for non-ANSI compilers. +(gshtscr.c) + +Finishes implementing the TransferFunction entry in halftone +dictionaries. (gsht1.c) + +Modifies the character oversampler so it can produce gray scale +output instead of a 1-bit mask. We don't actually make use of this +ability yet. (gxccman.c) + +Adds gs_set/currentfilladjust for access to the fill adjustment +parameter in the graphics state. (gsstate.h, gsstate.c) + +Changes the names of the last few routines beginning with gz_ to +begin with gx_ instead. (gzdraw.h => gxdraw.h, gsimage*.c, gxdraw.c, +gxfill.c, gxstroke.c) + +Properly implements the PageSize, Margins, .HWMargins, and ImagingBBox +device parameters for all devices. (gscoord.c, gsdparam.c, gspath2.c) +Implements the NumCopies device parameter for printer devices. +(gdevprn.c) + +Implements std_device_body macros to help insulate statically initialized +non-printer devices from future changes in the gx_device structure. +(gxdevice.h, ... many .c files ...) + +</pre> + +<hr> + +<h2><a name="Version3.0.3"></a>Version 3.0.3 (9/16/94)</h2> + +<p> +This is primarily a bug fix release; it also implements most of the +remaining Level 2 loose ends (except for setpagedevice). + +<h3><a name="V3.0.3_Documentation"></a>Documentation</h3><pre> + +Changes code that refers to "Ghostscript" to use the correct product +name from gs_product. (gs.mak, gdevpbm.c, gdevsun.c, gswppm.c) + +Documents the new .forgetsave operator. (language.doc) + +Clarifies the distinction between commercial licensing and single-copy +end-user sales. (readme) + +</pre><h3><a name="V3.0.3_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - The compilation rule for gdevadmp.c was missing from the +makefile. (devs.mak) + +Changes the version numbering scheme back to A.B.C, since too many +people got confused by the change to A.BC. (gconfig.c, gs.c, +gs_init.ps) + +Adds a -dNOGC switch to prevent the garbage collector from being +enabled. (gs_init.ps) + +</pre><h3><a name="V3.0.3_Utilities"></a>Utilities</h3><pre> + +Removes the ps2image utility, since the new psmono driver replaces it. + +</pre><h3><a name="V3.0.3_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - The TIFF drivers incorrectly assumed that short and ulong +were the same size as TIFF_short and TIFF_ulong, causing problems on +64-bit systems. (gdevtfax.c) + - The EGA/VGA driver didn't do gray halftones properly if it +was configured as a monochrome or 8-color device. (gdevpcfb.h) + - The comment in gdevevga.c incorrectly identified the file +as gdevpcfb.c. (gdevevga.c) + +Changes the PC display drivers to save and restore more of the BIOS +state. (gdevpcfb.h, gdevevga.c, gdevpcfb.c, gdevsco.c) + +Adds a new psmono driver that does the same thing as ps2image, faster +and more conveniently. (gdevpsim.c) + +Replaces the X11 driver with the one from 3.01, since the color +handling rewrite in 3.02 introduced serious bugs. (gdevx.h, gdevx.c, +gdevxini.c) + +</pre><h3><a name="V3.0.3_Platforms"></a>Platforms</h3><pre> + +Changes the definition of gx_no_color_index to work around one of the +bugs in the SGI Irix compiler. (gxdcolor.h) + +Rewrites the installation commands in unix-end.mak so they don't have +very long lines. (unix-end.mak) + +</pre><h3><a name="V3.0.3_Fonts"></a>Fonts</h3><pre> + +Fixes bugs: + - Fonts that used 2- or 4-element arrays in the Metrics dictionary +interpreted the width and side bearing interchanged with each other. +(gs_type1.ps) + - Setting FONTPATH on the command line didn't work. (gs_fonts.ps) + +</pre><h3><a name="V3.0.3_Streams"></a>Streams</h3><pre> + +Fixes bugs: + - The stream position wasn't updated properly if sgets +crossed a buffer boundary. (stream.c) + +Extends the BoundedHuffman filters so they can encode and decode runs of +zeros specially, and so they mark and detect EOD. (sbhc.h, shc.h, sbhc.c, +zfilter2.c) + +Provides an alternate implementation of file streams which doesn't use +stdio buffering and which works around the System V "interrupted system +call" problem. (stream.c, sfile.c, sfileno.c) + +Increases the maximum LZW output code from 3000 to 4095. (slzwe.c) + +</pre><h3><a name="V3.0.3_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - Opening a filter on a file of the wrong access type (read +vs. write) didn't cause an error. (stream.h, sbasic.c, zfile.c, zfileio.c) + - save performed an extra, unnecessary gsave. (zvmem.c) + - sethalftone always gave a /undefined error. (zht2.c) + - eexec decryption read too much data from the input -- in +Level 2, it isn't allowed to read 512 characters ahead. (sfilter.h, +strimpl.h, seexec.c, sstring.c, zfileio.c, zmisc1.c) + - The scanner was too aggressive about allocating additional +space for strings on small machines. (iscan.c) + - The AccurateScreens flag in Type 1 and Type 2 halftone +dictionaries was being ignored. (zht2.c) + - The Level 2 definition of margins in statusdict didn't +allow for Margins being undefined in the current page device. +(gs_lev2.ps) + - The Interpolate flag was being ignored in image +dictionaries. [implemented in library] + - The TransferFunction option was being ignored in halftone +dictionaries. (zht2.c) + - Type 5 halftones usually didn't work, because they called +the wrong (or an invalid) spot function. (zht2.c) + +Implements a .forgetsave operator that effectively causes a given save (and +all more recent saves) to disappear. (isave.h, stream.h, isave.c, zfile.c, +zvmem.c) + +</pre><h3><a name="V3.0.3_Library"></a>Library</h3><pre> + +Fixes bugs: + - In the 1-operand form of the image operator, a Decode value of [1 +0] with 8-bit sample values and a single data source was treated the same +as [0 1]. (gsimage1.c) + - Some Monotype fonts put a callsubr between an OtherSubr call and +the following 'pop' opcodes (which the Adobe documentation forbids); The +Type 1 font interpreter gave an invalidfont error rather than allowing +this. (gxtype1.h, gstype1.c) + - Patterns didn't implement XStep and YStep properly. +(gxpcolor.h, gspcolor.c, gxclip2.c) + - Clipping regions were sometimes 1 pixel too small at the edges; +this could cause vertical and horizontal lines produced by certain Windows +drivers to disappear. (gzpath.h, gxacpath.c, gxcpath.c, gxfill.c) + - Oversampling cached rotated characters produced very bad +results (many dropouts). (gschar.c) + - Rendering a DeviceGray color on a DeviceCMYK device applied +the transfer function to all 4 components, not just to the K +component. (gxcmap.c) + - A screen specified with setcolorscreen didn't take effect +properly on CMYK devices. (gsht.c) + +Implements the Interpolate option for images. Currently this is only +implemented for portrait-orientation images (no rotation, skewing, or +X-reflection). (gscspace.h, gximage.h, gscie.c, gscolor.c, gscolor1.c, +gscolor2.c, gspcolor.c, gxcmap.c, gsimage.c, gsimage2.c, gsimage3.c) + +Implements AccurateScreens, but only in the form of a larger limit on +the size of a halftone super-cell. (gxht.h, gsht.c, gsht1.c) + +Starts to implement the TransferFunction option for halftones. +(gzht.h, gzstate.h, gsht.c, ...too many others to list...) + +</pre> + +<h2><a name="Version3.02"></a>Version 3.02 (8/30/94)</h2> + +<p> +This is another bug fix release. It was distributed only to a few people, +since the new X Windows color mapping code is not reliable yet. + +<h3><a name="V3.02_Documentation"></a>Documentation</h3><pre> + +Fixes bugs: + - make.doc, but not unixtail.mak, called for setting PLATFORM=unix_ +on SVR4 platforms. (unixtail.mak) + - drivers.doc contained some wording that suggested that +Ghostscript always used RGB colors internally. (drivers.doc) + - The definition of gx_device in drivers.doc had gotten out of sync +with gxdevice.h. (drivers.doc) + - README claimed that Ghostscript is not compatible with the +VAX/VMS DEC C compiler, which is no longer true. (readme) + +Adds a new section on printer drivers to drivers.doc. (drivers.doc) + +Adds a large number of new display boards to the 800x600 SVGA section of +use.doc. (use.doc) + +Adds a bug report form to the README file. (readme) + +Notes that OSF/1 AXP systems require changing the definition of INSTALL +from install to installbsd. (make.doc) + +</pre><h3><a name="V3.02_Procedures"></a>Procedures</h3><pre> + +Removes -Wno-uninitialized from the gcc flags, and fixes all the places (in +Aladdin's code only) that need to be fixed to pacify gcc after doing this. +(gcc-head.mak, gdevgif.c, gdevmem2.c, gdevpcl.c, gs.c, gsht1.c, gsimpath.c, +gsutil.c, gxclread.c, gxpcopy.c, gxstroke.c, idict.c, iscannum.c, stream.c, +zdevice2.c) (NOT FINISHED YET) + +Adds a FAKEFONTS switch that makes fake entries in FontDirectory for +unloaded fonts, for the benefit of programs that think they can find all +the available fonts by scanning FontDirectory. (gs_fonts.ps, gs_init.ps) + +</pre><h3><a name="V3.02_Utilities"></a>Utilities</h3><pre> + +Fixes bugs: + - ps2epsi didn't work, because setdevice now erases the page. +(ps2epsi.ps) + - ps2epsi didn't work, because -dNODISPLAY installs a null device +with 0 width and height. The fix -- to remove the -dNODISPLAY -- is not +satisfactory, because it opens an unnecessary window. (ps2epsi) + +</pre><h3><a name="V3.02_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - gdev_fax_open was incorrectly declared static in gdevtfax.c, +causing the extern reference in the dfax drivers not to be resolved. +(gdevtfax.c) + - devs.mak included a duplicate definition of gdevmswn_h. +(devs.mak) + - The fax drivers didn't link properly in Level 1 systems, because +shc.c was omitted from their dependency list. (gs.mak, devs.mak) + - The TIFF/F drivers didn't set RowsPerStrip properly. +(gdevtfax.c) + - The TIFF/F drivers didn't byte-align the EOL properly. (scfx.h, +gdevdfax.c, gdevtfax.c, scfe.c, zfilter2.c) + - The rule for compiling gdevpccm.c incorrectly specified +dependency on gs.h rather than gx.h. (devs.mak) + - The rule for compiling gdevtfax.c didn't include time_.h as a +dependency. (devs.mak) + - The mode 2 compression routine for the DeskJet/LaserJet printers +was broken. (gdevpcl.c) + +Removes the -O0 from the compilation rule for gdevsco.c, since it was +misplaced to begin with. (devs.mak) + +Adds a maxDynamicColors X resource to control dynamic allocation in the +color map. Replaces the X color lookup algorithms with completely new +ones, for a substantial performance gain. (gdevx.h, gdevx.c, gdevxini.c) + +Adds PageNumber, Software, and DateTime entries to the TIFF/F drivers. +(gdevtifs.h, gdevtfax.c) + +Changes the margins for the LaserJet 4 to 0. (gdevdjet.c) + +Adds a user-contributed LaserJet 4 driver that does Floyd-Steinberg +dithering. (gdevcdj.c) + +</pre><h3><a name="V3.02_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - The exit codes for Ghostscript should be different on VMS. +(iastate.h, gs.c, gsmain.c, igc.c, igcref.c) + - The VMS DEC C compiler declares malloc and free in stdlib.h, and +delete and unlink in stdlib.h. (malloc_.h, stdio_.h) + - st_prn_device wasn't defined, which upset the VMS linker even +though there were no references. (gdevprn.h) + - stdpre.h didn't bring in the right headers when running gcc on +SCO Unix, causing compilation warnings/errors. (stdpre.h) + - The definition of rename in gp_sysv didn't include const for the +arguments. (gp_sysv.c) + - The definition of gettimeofday in gp_sysv didn't return any +value. (gp_sysv.c) + - time_.h didn't work on MS-DOS systems. (time_.h) + - math_.h didn't include <math.h> when compiling with gcc on VMS +systems. (math_.h) + - DesqView/X doesn't have a 'cat' command, which caused problems in +the linking step. (dvx-tail.mak) + +Changes the definitions of popen in gdevpipe.c and gp_unix.c so they don't +specify the argument list. This is an attempt to get around the fact that +there is no easy way to detect whether the available header files declare +popen correctly (with const arguments), incorrectly (with non-const +arguments), or not at all. (gdevpipe.c, gp_unix.c) + +Replaces VMS.MAK, VMS-CC.MAK, and VMS-AXP.MAK with new versions provided by +a user. (vms.mak, vms-cc.mak, vms-axp.mak) + +Changes the 16-bit Borland makefiles so their standard configuration is +Level 1 plus color.dev (CMYK color and colorimage). (bc.mak, bcwin.mak) + +</pre><h3><a name="V3.02_Fonts"></a>Fonts</h3><pre> + +Fixes bugs: + - cfonts.mak still referred to some .gsf files that have been +replaced by .pfa files. (cfonts.mak) + - Compiled fonts got entered into FontDirectory, but didn't get +registered as resources. (gs_ccfnt.ps) + - The Cyrillic, Kana, Hershey .gsf, and URW fonts didn't include a +necessary systemdict begin/end, which caused them to fail in badly designed +environments. (fonts/f*.gsf, fonts/h*.gsf, fonts/?0*.gsf) + +Changes the default target directory in cfonts.mak from fonts/c to .; +changes the names of the Zapf Chancery compiled font procedures from c* to +zc*. (cfonts.mak) + +Adds more fonts from the Adobe Type Manager package for MS Windows to +Fontmap.ATM. (fontmap.atm) + +Adds the entire set of 35 standard fonts to the ccfonts feature in gs.mak; +removes all the compilation rules for compiled fonts, since these rules are +in cfonts.mak already. (gs.mak) + +</pre><h3><a name="V3.02_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - kshow executed a null, rather than the correct procedure, between +the characters of the string, and got a typecheck error at the end. +(zchar.c) + - MultiMaster fonts computed their side bearing and width +incorrectly, producing incorrect output. (zchar1.c) + - There was no structure definition for gs_type1_state, so a GC +during the execution of an OtherSubrs procedure could scramble pointers in +the saved state. (zchar1.c, zfont1.c; also affects library, see below) + - kshow didn't work properly if the kerning procedure changed the +depth of the operand or dictionary stack. (zchar.c) + - If the element count for roll was too large by only 1 or 2, the +result was a crash rather than a rangecheck. (zstack.c) + - restore didn't undo currentgstate. (igstate.h, store.h, +gsstate.c, zdevice2.c, zdps1.c, ztype.c) + - The scanner didn't set the local bit properly in a suspended +state. (iscan.c) + - copypage disregarded #copies. (gs_init.ps) + - An incorrectly declared pointer led to addressing faults on +16-bit systems. (zchar1.c) + - The cache for Separation colors was allocated with one element +too few. (zcsindex.c) + +Changes `executive' so that if an error other than EOF occurs in the +reading of the statement, the interpreter prints the error message, but +control remains in the executive loop. (This isn't a very good fix; a +better one will require refactoring executive / execute / run.) +(gs_init.ps) + +Changes dictionary undo saving to use the new ref_must_save macro [internal +change only]. (idict.c) + +Moves configuration definitions from iinit.c to gconfig.c. (gcdefs.h, +interp.h, gconfig.c, gs.c, iinit.c, zmisc2.c, gs.mak) + +Moves =string from systemdict to userdict for Adobe compatibility. +(gs_init.ps) + +Starts to implement the Interpolate flag in image dictionaries. See under +Library below for restrictions. (zpaint.c, zimage2.c) + +</pre><h3><a name="V3.02_Streams"></a>Streams</h3><pre> + +Fixes bugs: + - stream_compact attempted to compact a read-only string being used +as the data source of a filter. (sbasic.c, stream.c) + +Adds an EncodedEOLAlign flag to the CCITTFaxEncode stream, to allow direct +generation of TIFF/F output. (scfx.h, scfe.c, zfilter2.c) + +</pre><h3><a name="V3.02_Library"></a>Library</h3><pre> + +Fixes bugs: + - There was no structure definition for gs_type1_state, so a GC +during the execution of an OtherSubrs procedure could scramble pointers in +the saved state. (gxfont1.h, gxtype1.h, gstype1.c, gxhint2.c) + - A couple of calls had to discard const, but didn't include the +necessary cast. (gxpcmap.c) + - makeimagedevice refused to accept an empty image. (gsdevice.c) + - The extra parentheses around arguments in memory_.h caused some +compilers to fail. (memory_.h) + - Floating point overflows during coordinate conversion terminated +Ghostscript. (gxfarith.h, gxfixed.h, gsmatrix.c, gsmisc.c) + - Accents still weren't getting placed properly on characters +created with seac. (gstype1.c, gxhint2.c) + - The SGI C compiler couldn't handle the (perfectly legal) +definitions of dev_init_[open_]misc. (gxdevice.h) + - string_.h caused some problems with gcc on some versions of +Solaris. (string_.h) + - The halftone levels for color screens were computed incorrectly. +(gzht.h, gxdither.c) + - Color screens sometimes had vertical stripes of solid color +interspersed. (gxcht.c) + - Colors could get mapped incorrectly if a compiler aggressively +(and incorrectly) reordered the computation of procedure arguments +involving the unit_frac macro. (gxcmap.c) + - setcachedevice[2] insisted that the corners of the bounding box +be given in the correct order, i.e., llx < urx and lly < ury. (gschar.c) + - The image operator gave a limitcheck on unrotated 1-bit-per-pixel +images whose width in device coordinates exceeded 65529. (gsimage.c) + - The garbage collector didn't trace the input data of an +in-progress image operator correctly. (gsimage.c) + +Changes the max_rgb and dither_rgb members of gx_device_color_info to +max_color and dither_colors, since Ghostscript now uses these for CMYK +devices as well. Also changes dither_gray to dither_grays. (gdevmem.h, +gdevprn.h, gxdevice.h, gdevbit.c, gdevcdj.c, gdevprn.c, gdevxini.c, +gsdparam.c, gxcht.c, gxcmap.c) + +Starts to implement the Interpolate option for images. Currently this is +only implemented for image, not imagemask, and only for rotations that are +multiples of 90 degrees (possibly with reflection). (gsimage.h, +gsiscale.h, gximage.h, gsimage.c, gsimage1.c, gsiscale.c) + +Starts to implement XStep and YStep in pattern dictionaries. (gxdcolor.h, +gxpcolor.h, gspcolor.c, gxpcmap.c) + +</pre> + +<h2><a name="Version3.01"></a>Version 3.01 (8/14/94)</h2> + +<p> +This is a patch release to fix early problems in release 3.0, and to clean +up a few known loose ends. + +<h3><a name="V3.01_Documentation"></a>Documentation</h3><pre> + +Fixes bugs: + - language.doc still documented the devicename procedure, which has +been withdrawn. (language.doc) + - drivers.doc didn't specify under what circumstances each +procedure could be called. (drivers.doc) + - current.doc said that setcachedevice and makeimagedevice wouldn't +accept packed arrays, but neither of these operators takes any array +arguments. (current.doc) + - current.doc said that definefont didn't interact properly with +the resource machinery, which apparently is no longer true. (current.doc) + - make.doc incorrectly gave the name of the DVX makefile as +dvx-djg.mak rather than dvx-gcc.mak. (make.doc) + - In one place, devices.doc incorrectly used -sBitsPerPixel= rather +than -dBitsPerPixel=. (devices.doc) + +Notes that a kernel bug in SCO Unix makes Ghostscript not work correctly in +some circumstances. (use.doc) + +</pre><h3><a name="V3.01_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - devs.mak incorrectly referred to gdevjetp.c instead of +gdev3852.c. (devs.mak) + - The obsolete file gsprops.c was accidentally included in the +fileset. + +Changes the version numbering scheme from A.BCC to A.B[C]. E.g., this +release will be 3.01, not 3.001. (gs_init.ps, gs.c, iinit.c) + +Adds the LaserJet 4 driver to all makefiles that already include the +LaserJet 3 driver. (*.mak) + +Adds the BJ-200 driver to all makefiles that already included the BJ-10e +driver. (*.mak) + +Splits the Unix 'install' target into install-exec and install-data. Moves +the executable scripts from gsdatadir to a new directory scriptdir, which +defaults to bindir. (ansihead.mak, cc-head.mak, gcc-head.mak, +unix-end.mak) + +</pre><h3><a name="V3.01_Utilities"></a>Utilities</h3><pre> + +Fixes bugs: + - genconf had fixed buffer sizes built into it, which it could +overrun its working storage without checking. (genconf.c) + +Removes RCS or SCCS headers from two utility files. (pj-gs.sh, +printafm.ps) + +</pre><h3><a name="V3.01_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - The new dfaxhigh and dfaxlow drivers didn't set +state.EncodedByteAlign to false. (gdevdfax.c) + - The sunview driver assumed that the device would be open before +map_rgb_color was called. (gdevsun.c) + - The CP50 driver incremented page_count itself, rather than +letting the core library do it. (gdevcp50.c) + - The GIF driver(s) could loop indefinitely under certain +circumstances. (gdevgif.c) + - The Group 4 fax drivers incorrectly included end-of-line codes in +the output. (gdevtfax.c, gdevdfax.c) + - The Group 4 fax drivers could put out an EOB in the middle of the +data. (scfe.c) + - The DesignJet 650C driver didn't use the correct compression +mode. (gdevcdj.c) + - The Hercules and EGA/VGA/SVGA drivers computed the page height +incorrectly according to the A4 switch. (gdevherc.c, gdevpcfb.h) + +Changes the page_count and showpage_count members of the device structure +from int to long. (gxdevice.h, gdevprn.c, gsdparam.c) + +Changes the faxg3, faxg32d, and faxg4 drivers so that, like the TIFF and +dfax drivers, they adjust the page size to one of the three CCITT standard +sizes if this is reasonable. (gdevtfax.c) + +Splits the bit driver into bit, bitrgb, and bitcmyk. Adds bitrgb and +bitcmyk to all makefiles that included bit. (*.mak, devs.mak, gdevbit.c) + +Replaces the atiw16, tseng16, and tvga16 SuperVGA drivers with a single +svga16 driver that allows specifying the display mode number. (devs.mak, +gdevpcfb.c) + +</pre><h3><a name="V3.01_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - The MS Windows and OS/2 drivers allocated their terminal input +buffers in a way that could cause the GC to crash. (gp_mswin.c, gp_os2.c) + - The handling of gettimeofday on SVR4 platforms was incorrect. +(time_.h, gp_sysv.c, gp_unix.c) + - On some platforms, function prototypes were not enabled even if +__STDC__ was defined. (stdpre.h) + - The VMS build script referred to an obsolete feature lev2only. +(vms.mak) + +Changes the DVX platform so that stdprn is buffered. This should improve +printing performance dramatically. (gp_dvx.c) + +</pre><h3><a name="V3.01_Fonts"></a>Fonts</h3><pre> + +Fixes bugs: + - Setting DISKFONTS resulted in a reference to FontFileDirectory +before it was defined. (gs_type1.ps, gs_fonts.ps) + - /Font findresource gave an error rather than doing font +substitution. (gs_res.ps) + - FontDirectory wasn't rebound to GlobalFontDirectory when global +VM was current. (gs_res.ps, zdict.c) + - Type 1 fonts weren't loaded into global VM. (gs_fonts.ps) + - In the standard Fontmap, the Utopia fonts had extension .gsf +rather than .pfa. (fontmap.gs) + - Fonts whose FontBBox was [0 0 0 0] were not displayed, or were +displayed as tiny dots. (gs_type1.ps) + +</pre><h3><a name="V3.01_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - dict_put could read from the variable pvslot before it was used. +(This was harmless, since the value was never actually used; it just upset +Purify.) (idict.c) + - Binary object sequences could cause addressing faults. +(iscanbin.c) + - The attributes on names were set incorrectly in binary object +sequences. (iscanbin.c) + - gs.c duplicated (in some cases incorrectly) some definitions in +interp.h. (gs.c) + - gs_lib_paths was declared const in one place and non-const in +another. (zfile.c) + - file_restore and font_restore had inconsistent const declarations +for their argument. (isave.c) + - iodev_os_open_file was missing its last formal parameter. +(ziodev.c) + - gs.c declared gs_devicename with an incorrect extern. (gs.c) + - undefinefont didn't interact properly with the resource +machinery. (gs_lev2.ps) + - The declaration for swap_entry used a typedef name as a formal +parameter, which upset some compilers. (zmisc2.c) + - Including the ccinit feature could cause the garbage collector to +make an invalid access. (stream.c) + - The check for t_[a]struct types in ztype.c was incorrect. +(ztype.c) + - After the collection of halftone samples, temporary data +structures were freed incorrectly. (gzht.h, gsht1.c, zht.c) + - Images with source width between 489 and 492 crashed the +memory manager. (iastate.h) + +Makes it possible to define SEARCH_HERE_FIRST (gsmain.c) in the makefile. +(gsmain.c) + +Splits the Level 2 resource machinery into a separate file. (gs_lev2.ps, +gs_res.ps, gs.mak, unix-end.mak, vms.mak). + +Changes the names of the DiffEncode/Decode filters to +PixelDifferenceEncode/Decode, and splits them off into a separate +"feature". (gs.mak, zfilter2.c, zfpdiff.c, spdiff.c, spdiffx.h) + +Adds experimental code for filtered image scaling. DON'T USE THIS CODE. +(zimage2.c) + +</pre><h3><a name="V3.01_Streams"></a>Streams</h3><pre> + +Fixes bugs: + - The CCITTFaxEncode filter could put out an EOB in the middle of +the data. (scfe.c) + +Splits off the PixelDifferenceEncode/Decode filters into a separate +"feature". (gs.mak) + +</pre><h3><a name="V3.01_Library"></a>Library</h3><pre> + +Fixes bugs: + - gs_setcachedevice could return a garbage error code. (gschar.c) + - joins on stroked lines were incorrect if the device coordinate +system mapped +Y to +Y. (gxstroke.c) + - If gsmisc.c supplied versions of missing library routines, they +could clash with the names of the real ones if those were present +unexpectedly. (memory_.h, gsmisc.c) + - The initialization expression for is_open in the +dev_init_misc_open macro included a cast, which some compilers don't allow. +(gxdevice.h, gsdevice.c, gxclip2.c, gxpcmap.c) + - In Type 1 fonts, character that specified their side bearing and +width with sbw rather than hsbw gave an invalidfont error. (gstype1.c) + - Some procedures were declared inconsistently with regard to const +arguments. (gscie.c, gxpcmap.c, gxacpath.c, gxcmap.c) + - A few places still assumed that pointers occupied 4 bytes. +(gxclist.c) + - Rendering a gray halftone on a CMYK device called the device's +map_rgb_color procedure instead of map_cmyk_color. (gxdither.c) + +Renames gsfile.c as gswppm.c. (gsfile.c, gswppm.c) + +Implements the ability to cache arbitrarily transformed characters. This +is currently enabled by a compile-time flag in gschar.c. (gschar.c) + +</pre> + +<h2><a name="Version3.0"></a>Version 3.0 (8/1/94)</h2> + +<p> +This is the first full Level 2 version released to the public. +Unfortunately, we were not able to include setpagedevice in this release. + +<h3><a name="V3.0_Documentation"></a>Documentation</h3><pre> + +Fixes bugs: + - README didn't mention Aladdin's European distributor. + - psfiles.doc didn't describe some of the newer gs_*.ps files. + +Notes that gcc -O2 (version 2.5.8 of gcc) generates incorrect code for some +modules on the H-P RISC architecture. + +Notes that on AXP platforms running VMS, DEC C V4.0 is required. + +</pre><h3><a name="V3.0_Procedures"></a>Procedures</h3><pre> + +Fixes bugs: + - 'make clean' didn't delete devs.tr or t.tr. + - devs.mak was missing the entry for faxg32d. + - unixansi.mak omitted some drivers that were included in +unix-cc.mak and unix-gcc.mak. + +Updates jpeg.mak to reference version 5beta1 of the IJG JPEG code. + +Changes the version numbering scheme from A.B.C to A.B[CC]. I.e., the +first sub-release after 3.0 will be 3.01 or 3.001, not 3.0.1. + +</pre><h3><a name="V3.0_Utilities"></a>Utilities</h3><pre> + +Fixes bugs: + - ps2ascii didn't do a setglobal. + +Adds an option to ansi2knr to convert ... to va_alist/va_dcl. + +</pre><h3><a name="V3.0_Drivers"></a>Drivers</h3><pre> + +Fixes bugs: + - The newly added faxg32d driver didn't have an entry in devs.mak. + - The BMP, GIF, and PCX drivers wrote out an incorrect color +palette (the blue values were too small). + - The vgalib driver had some compilation problems. + - The TIFF drivers didn't produce correct multi-page output. + +Adds faxg32d and tiffg32d drivers. + +Reinstates the DigiFax drivers, which were withdrawn when the new fax +drivers were added. + +</pre><h3><a name="V3.0_Platforms"></a>Platforms</h3><pre> + +Fixes bugs: + - gs_btokn.ps and gs_ccfnt.ps weren't installed on Unix platforms. + - The VMS module list omitted SBHC, included a non-existent GXDASH, +and had incorrect names for some of the IJG JPEG files. + - The VMS build scripts (vms*.mak) had incorrect "boilerplate". + - The VMS script file gssetmod.com had \r characters in it, as well +as \n characters. + - The echogs and genarch utilities didn't return the correct exit +codes under VMS. + - The VMS Fontmap had incorrect entries for the Courier and Charter +fonts. + - When running under Ghostview, Ghostscript didn't drain the input +pipe. (We fixed this with a temporary patch in gs.c; this isn't a good +solution for the longer term.) + +</pre><h3><a name="V3.0_Fonts"></a>Fonts</h3><pre> + +Fixes bugs: + - The free AvantGarde, Bookman, and Palatino font families had +incorrect FontBBox values. + - The 'f' and 'j' in the free AvantGarde-DemiOblique, +Bookman-DemiItalic, Bookman-LightItalic, and Palatino-Italic fonts were +chopped off on the right. (The bitmaps were chopped off in the original +BDF fonts from which these fonts were made.) ****** THIS PROBLEM WAS NOT +ACTUALLY FIXED. ****** + +</pre><h3><a name="V3.0_Interpreter"></a>Interpreter</h3><pre> + +Fixes bugs: + - gs -h and gs -v didn't print the tertiary version number correctly. + - Binary object sequences with no strings or names didn't read in +correctly. + - Binary object sequences that crossed an input buffer boundary +didn't read in correctly. + - Binary object sequences read in as {[e1 .. en] e1 ... en} instead +of {[e1 ... en]}. (New bug in 2.9.x.) + - setpattern didn't set the current color space correctly if the +current color space wasn't a Pattern space. + - If the current color space was an uncolored Pattern space but the +current color was a colored Pattern, currentcolor returned extra values on +the operands stack. + - .buildfont1 in gs_type1.ps didn't force binding of the old +definition, causing ps2ascii to loop endlessly. + +Adds a facility for writing and reading dictionaries in binary object +sequences. This is experimental and subject to change in the future. + +</pre><h3><a name="V3.0_Streams"></a>Streams</h3><pre> + +Fixes bugs: + - gs_run_string and ccinit didn't have any way to mark the string +as "foreign", which confused the GC. + +</pre><h3><a name="V3.0_Library"></a>Library</h3><pre> + +Fixes bugs: + - gxchar.h had an extra comma after the last element of the +show_width_status enum, which upset some compilers. + - stroke and strokepath didn't correctly skip zero-length segments +if the line width was less than one pixel, or if there was a closed subpath +consisting entirely of zero-length segments. + - strokepath sometimes incorrectly added a moveto at the end of the +path. +</pre> + +<!-- [3.0 begin visible trailer] =========================================== --> +<hr> + +<p> +<small>Copyright © 1996, 1997, 1998 Aladdin Enterprises. +All rights reserved.</small> + +<p> +This software is provided AS-IS with no warranty, either express or +implied. + +This software is distributed under license and may not be copied, +modified or distributed except as expressly authorized under the terms +of the license contained in the file LICENSE in this distribution. + +<p> +<small>Ghostscript version 7.07, 17 May 2003 + + +<!-- [3.0 end visible trailer] ============================================= --> + +</body> +</html> |