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authorKarl Berry <karl@freefriends.org>2006-01-17 21:41:51 +0000
committerKarl Berry <karl@freefriends.org>2006-01-17 21:41:51 +0000
commit487ca4806cc046076293cf6cc5fbba0db282bac7 (patch)
tree847b412ab5158dd7bdd7ed7e5a4cc3fbca94be32 /Build/source/texk/ttfdump/libttf/hmtx.c
parenta3d3111bfe26b8e5f5bc6049dfb2a4ca2edc7881 (diff)
texk 1
git-svn-id: svn://tug.org/texlive/trunk@1485 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/texk/ttfdump/libttf/hmtx.c')
-rw-r--r--Build/source/texk/ttfdump/libttf/hmtx.c111
1 files changed, 111 insertions, 0 deletions
diff --git a/Build/source/texk/ttfdump/libttf/hmtx.c b/Build/source/texk/ttfdump/libttf/hmtx.c
new file mode 100644
index 00000000000..4d71edfe956
--- /dev/null
+++ b/Build/source/texk/ttfdump/libttf/hmtx.c
@@ -0,0 +1,111 @@
+/* hmtx.c -- Horizontal Metrics Table
+ * Copyright (C) 1997 Li-Da Lho, All right reserved
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include "config.h"
+#include "ttf.h"
+#include "ttfutil.h"
+
+#ifdef MEMCHECK
+#include <dmalloc.h>
+#endif
+
+/* $Id: hmtx.c,v 1.1.1.1 1998/06/05 07:47:52 robert Exp $ */
+
+#ifndef lint
+static char vcid[] = "$Id: hmtx.c,v 1.1.1.1 1998/06/05 07:47:52 robert Exp $";
+#endif /* lint */
+
+static HMTXPtr ttfAllocHMTX(TTFontPtr font);
+static void ttfLoadHMTX(FILE *fp,HMTXPtr hmtx,ULONG offset);
+
+/* Caution: Because of interdependency between tables,
+ * table hhea and maxp should be well initalized before
+ * ttfInitHMTX is been called
+ */
+void ttfInitHMTX(TTFontPtr font)
+{
+ ULONG tag = 'h' | 'm' << 8 | 't' << 16 | 'x' << 24;
+ TableDirPtr ptd;
+
+ if ((ptd = ttfLookUpTableDir(tag,font)) != NULL)
+ {
+ font->hmtx = ttfAllocHMTX(font);
+ font->hmtx->numberOfHMetrics = font->hhea->numberOfHMetrics;
+ font->hmtx->numberOfLSB = font->maxp->numGlyphs -
+ font->hhea->numberOfHMetrics;
+ ttfLoadHMTX(font->fp,font->hmtx,ptd->offset);
+ }
+}
+static HMTXPtr ttfAllocHMTX(TTFontPtr font)
+{
+ HMTXPtr hmtx;
+
+ if ((hmtx = (HMTXPtr) calloc(1,sizeof(HMTX))) == NULL)
+ {
+ ttfError("Out of Memory in __FILE__:__LINE__\n");
+ return NULL;
+ }
+ return hmtx;
+}
+static void ttfLoadHMTX(FILE *fp,HMTXPtr hmtx,ULONG offset)
+{
+ USHORT i,n = hmtx->numberOfHMetrics,m=hmtx->numberOfLSB;
+
+ if (fseek(fp,offset,SEEK_SET) !=0)
+ ttfError("Fseek Failed in ttfLOADHMTX \n");
+
+ if ((hmtx->hMetrics = (longHorMetric *) calloc(n,sizeof(longHorMetric))) != NULL)
+ {
+ for (i=0;i<n;i++)
+ {
+ (hmtx->hMetrics+i)->advanceWidth = ttfGetuFWord(fp);
+ (hmtx->hMetrics+i)->lsb = ttfGetFWord(fp);
+ }
+ }
+ else
+ {
+ ttfError("Out Of Memory in __FILE__ : __LINE__\n");
+ }
+
+ /* codes dealing with leftSideBearing entry */
+ if (m && ((hmtx->leftSideBearing = (FWord *) calloc(m,sizeof(FWord))) != NULL))
+ {
+ for (i=0;i<m;i++)
+ {
+ (hmtx->leftSideBearing)[i] = ttfGetFWord(fp);
+ }
+ }
+}
+
+void ttfPrintHMTX(FILE *fp,HMTXPtr hmtx)
+{
+ int i;
+
+ fprintf(fp,"'hmtx' Table - Horizontal Metrics\n");
+ fprintf(fp,"---------------------------------\n");
+
+ for (i=0;i<hmtx->numberOfHMetrics;i++)
+ {
+ fprintf(fp,"\t %4d. advWid: %4d, LSBear: %4d\n",i,
+ (hmtx->hMetrics+i)->advanceWidth,
+ (hmtx->hMetrics+i)->lsb);
+ }
+
+ for (i=0;i<hmtx->numberOfLSB;i++)
+ {
+ fprintf(fp,"\t %4d. LSbear: %4d\n",i+hmtx->numberOfHMetrics,
+ (hmtx->leftSideBearing)[i]);
+ }
+}
+
+void ttfFreeHMTX(HMTXPtr hmtx)
+{
+ free(hmtx->hMetrics);
+
+ if (hmtx->numberOfLSB)
+ free(hmtx->leftSideBearing);
+
+ free(hmtx);
+}