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-rw-r--r--Build/source/libs/freetype/freetype-1.5/lib/ttload.c1598
1 files changed, 0 insertions, 1598 deletions
diff --git a/Build/source/libs/freetype/freetype-1.5/lib/ttload.c b/Build/source/libs/freetype/freetype-1.5/lib/ttload.c
deleted file mode 100644
index 0cf2894aa71..00000000000
--- a/Build/source/libs/freetype/freetype-1.5/lib/ttload.c
+++ /dev/null
@@ -1,1598 +0,0 @@
-
-/*******************************************************************
- *
- * ttload.c 1.0
- *
- * TrueType Tables Loader.
- *
- * Copyright 1996-2001, 2002 by
- * David Turner, Robert Wilhelm, and Werner Lemberg.
- *
- * This file is part of the FreeType project, and may only be used
- * modified and distributed under the terms of the FreeType project
- * license, LICENSE.TXT. By continuing to use, modify, or distribute
- * this file you indicate that you have read the license and
- * understand and accept it fully.
- *
- ******************************************************************/
-
-#include "tttypes.h"
-#include "ttdebug.h"
-#include "ttcalc.h"
-#include "ttfile.h"
-
-#include "tttables.h"
-#include "ttobjs.h"
-
-#include "ttmemory.h"
-#include "tttags.h"
-#include "ttload.h"
-
-/* required by the tracing mode */
-#undef TT_COMPONENT
-#define TT_COMPONENT trace_load
-
-/* In all functions, the stream is taken from the 'face' object */
-#define DEFINE_LOCALS DEFINE_LOAD_LOCALS( face->stream )
-#define DEFINE_LOCALS_WO_FRAME DEFINE_LOAD_LOCALS_WO_FRAME( face->stream )
-
-
-/*******************************************************************
- *
- * Function : LookUp_TrueType_Table
- *
- * Description : Looks for a TrueType table by name.
- *
- * Input : face face table to look for
- * tag searched tag
- *
- * Output : Index of table if found, -1 otherwise.
- *
- ******************************************************************/
-
- FT_EXPORT_FUNC( Long )
- TT_LookUp_Table( PFace face,
- ULong tag )
- {
- UShort i;
-
-
- PTRACE4(( "TT_LookUp_Table( %08lx, %c%c%c%c )\n",
- (Long)face,
- (Char)(tag >> 24),
- (Char)(tag >> 16),
- (Char)(tag >> 8),
- (Char)(tag) ));
-
- for ( i = 0; i < face->numTables; i++ )
- if ( face->dirTables[i].Tag == tag )
- return i;
-
- PTRACE4(( " Could not find table!\n" ));
- return -1;
- }
-
-
-/*******************************************************************
- *
- * Function : Load_TrueType_Collection
- *
- * Description : Loads the TTC table directory into face table.
- *
- * Input : face face record to look for
- *
- * Output : Error code.
- *
- ******************************************************************/
-
- static TT_Error Load_TrueType_Collection( PFace face )
- {
- DEFINE_LOCALS;
-
- ULong n;
-
-
- PTRACE3(( "Load_TrueType_Collection( %08lx )\n", (long)face ));
-
- if ( FILE_Seek ( 0L ) ||
- ACCESS_Frame( 12L ) )
- return error;
-
- face->ttcHeader.Tag = GET_Tag4();
- face->ttcHeader.version = GET_Long();
- face->ttcHeader.DirCount = GET_Long();
-
- FORGET_Frame();
-
- if ( face->ttcHeader.Tag != TTAG_ttcf )
- {
- face->ttcHeader.Tag = 0;
- face->ttcHeader.version = 0;
- face->ttcHeader.DirCount = 0;
-
- face->ttcHeader.TableDirectory = NULL;
-
- PTRACE3(("skipped.\n"));
-
- return TT_Err_File_Is_Not_Collection;
- }
-
- if ( ALLOC_ARRAY( face->ttcHeader.TableDirectory,
- face->ttcHeader.DirCount,
- ULong ) ||
- ACCESS_Frame( face->ttcHeader.DirCount * 4L ) )
- return error;
-
- for ( n = 0; n < face->ttcHeader.DirCount; n++ )
- face->ttcHeader.TableDirectory[n] = GET_ULong();
-
- FORGET_Frame();
-
- PTRACE3(( "collections directory loaded.\n" ));
- return TT_Err_Ok;
- }
-
-
-/*******************************************************************
- *
- * Function : Load_TrueType_Directory
- *
- * Description : Loads the table directory into face table.
- *
- * Input : face face record to look for
- *
- * faceIndex the index of the TrueType font, when
- * we're opening a collection.
- *
- * Output : SUCCESS on success. FAILURE on error.
- *
- ******************************************************************/
-
- FT_INTERNAL_FUNC( TT_Error )
- Load_TrueType_Directory( PFace face,
- ULong faceIndex )
- {
- DEFINE_LOCALS;
-
- UShort n, limit;
- TTableDir tableDir;
-
- PTableDirEntry entry;
-
-
- PTRACE2(("Load_TT_Directory( %08lx, %ld )\n", (long)face, faceIndex));
-
- error = Load_TrueType_Collection( face );
-
- if ( error )
- {
- if ( error != TT_Err_File_Is_Not_Collection )
- return error;
-
- /* the file isn't a collection, exit if we're asking */
- /* for a collected font */
- if ( faceIndex != 0 )
- return error;
-
- /* Now skip to the beginning of the file */
- if ( FILE_Seek( 0L ) )
- return error;
- }
- else
- {
- /* The file is a collection. Check the font index */
- if ( faceIndex >= face->ttcHeader.DirCount )
- return TT_Err_Invalid_Argument;
-
- /* select a TrueType font in the ttc file */
- if ( FILE_Seek( face->ttcHeader.TableDirectory[faceIndex] ) )
- return error;
- }
-
- if ( ACCESS_Frame( 12L ) )
- return error;
-
- tableDir.version = GET_Long();
- tableDir.numTables = GET_UShort();
-
- tableDir.searchRange = GET_UShort();
- tableDir.entrySelector = GET_UShort();
- tableDir.rangeShift = GET_UShort();
-
- FORGET_Frame();
-
- PTRACE2(( "-- Tables count : %12u\n", tableDir.numTables ));
- PTRACE2(( "-- Format version : %08lx\n", tableDir.version ));
-
- /* Check that we have a 'sfnt' format there */
-
- if ( tableDir.version != 0x00010000 && /* MS fonts */
- tableDir.version != 0x74727565 && /* Mac fonts */
- tableDir.version != 0x00000000 ) /* some Korean fonts */
- {
- PERROR(( "!! invalid file format" ));
- return TT_Err_Invalid_File_Format;
- }
-
- face->numTables = tableDir.numTables;
-
- if ( ALLOC_ARRAY( face->dirTables,
- face->numTables,
- TTableDirEntry ) )
- return error;
-
- if ( ACCESS_Frame( face->numTables * 16L ) )
- return error;
-
- limit = face->numTables;
- entry = face->dirTables;
-
- for ( n = 0; n < limit; n++ )
- { /* loop through the tables and get all entries */
- entry->Tag = GET_Tag4();
- entry->CheckSum = GET_ULong();
- entry->Offset = GET_Long();
- entry->Length = GET_Long();
-
- PTRACE2(( " %c%c%c%c - %08lx - %08lx\n",
- (Char)(entry->Tag >> 24),
- (Char)(entry->Tag >> 16),
- (Char)(entry->Tag >> 8 ),
- (Char)(entry->Tag),
- entry->Offset,
- entry->Length ));
- entry++;
- }
-
- FORGET_Frame();
-
- PTRACE2(( "Directory loaded\n\n" ));
- return TT_Err_Ok;
- }
-
-
-/*******************************************************************
- *
- * Function : Load_TrueType_MaxProfile
- *
- * Description : Loads the maxp table into face table.
- *
- * Input : face face table to look for
- *
- * Output : Error code.
- *
- ******************************************************************/
-
- FT_INTERNAL_FUNC( TT_Error )
- Load_TrueType_MaxProfile( PFace face )
- {
- DEFINE_LOCALS;
-
- Long i;
- PMaxProfile maxProfile = &face->maxProfile;
-
-
- PTRACE2(( "Load_TT_MaxProfile( %08lx )\n", (long)face ));
-
- if ( ( i = TT_LookUp_Table( face, TTAG_maxp ) ) < 0 )
- return TT_Err_Max_Profile_Missing;
-
- if ( FILE_Seek( face->dirTables[i].Offset ) ) /* seek to maxprofile */
- return error;
-
- if ( ACCESS_Frame( 32L ) ) /* read into frame */
- return error;
-
- /* read frame data into face table */
- maxProfile->version = GET_ULong();
-
- maxProfile->numGlyphs = GET_UShort();
-
- maxProfile->maxPoints = GET_UShort();
- maxProfile->maxContours = GET_UShort();
- maxProfile->maxCompositePoints = GET_UShort();
- maxProfile->maxCompositeContours = GET_UShort();
-
- maxProfile->maxZones = GET_UShort();
- maxProfile->maxTwilightPoints = GET_UShort();
-
- maxProfile->maxStorage = GET_UShort();
- maxProfile->maxFunctionDefs = GET_UShort();
- maxProfile->maxInstructionDefs = GET_UShort();
- maxProfile->maxStackElements = GET_UShort();
- maxProfile->maxSizeOfInstructions = GET_UShort();
- maxProfile->maxComponentElements = GET_UShort();
- maxProfile->maxComponentDepth = GET_UShort();
-
- FORGET_Frame();
-
- /* XXX : an adjustement that is necessary to load certain */
- /* broken fonts like "Keystrokes MT" :-( */
- /* */
- /* We allocate 64 function entries by default when */
- /* the maxFunctionDefs field is null. */
-
- if (maxProfile->maxFunctionDefs == 0)
- maxProfile->maxFunctionDefs = 64;
-
- face->numGlyphs = maxProfile->numGlyphs;
-
- face->maxPoints = MAX( maxProfile->maxCompositePoints,
- maxProfile->maxPoints );
- face->maxContours = MAX( maxProfile->maxCompositeContours,
- maxProfile->maxContours );
- face->maxComponents = maxProfile->maxComponentElements +
- maxProfile->maxComponentDepth;
-
- /* XXX: Some fonts have maxComponents set to 0; we will */
- /* then use 16 of them by default. */
- if ( face->maxComponents == 0 )
- face->maxComponents = 16;
-
- /* We also increase maxPoints and maxContours in order to support */
- /* some broken fonts. */
- face->maxPoints += 8;
- face->maxContours += 4;
-
- PTRACE2(( "GASP loaded.\n" ));
- return TT_Err_Ok;
- }
-
-
-/*******************************************************************
- *
- * Function : Load_TrueType_Gasp
- *
- * Description : Loads the TrueType Gasp table into the face
- * table.
- *
- * Input : face face table to look for
- *
- * Output : Error code.
- *
- ******************************************************************/
-
- FT_INTERNAL_FUNC( TT_Error )
- Load_TrueType_Gasp( PFace face )
- {
- DEFINE_LOCALS;
-
- Long i;
- UShort j;
- TGasp* gas;
- GaspRange* gaspranges;
-
-
- PTRACE2(( "Load_TT_Gasp( %08lx )\n", (long)face ));
-
- if ( ( i = TT_LookUp_Table( face, TTAG_gasp ) ) < 0 )
- return TT_Err_Ok; /* gasp table is not required */
-
- if ( FILE_Seek( face->dirTables[i].Offset ) ||
- ACCESS_Frame( 4L ) )
- return error;
-
- gas = &face->gasp;
-
- gas->version = GET_UShort();
- gas->numRanges = GET_UShort();
-
- FORGET_Frame();
-
- PTRACE3(( "number of ranges = %d\n", gas->numRanges ));
-
- if ( ALLOC_ARRAY( gaspranges, gas->numRanges, GaspRange ) ||
- ACCESS_Frame( gas->numRanges * 4L ) )
- goto Fail;
-
- face->gasp.gaspRanges = gaspranges;
-
- for ( j = 0; j < gas->numRanges; j++ )
- {
- gaspranges[j].maxPPEM = GET_UShort();
- gaspranges[j].gaspFlag = GET_UShort();
-
- PTRACE3(( " [max:%d flag:%d]",
- gaspranges[j].maxPPEM,
- gaspranges[j].gaspFlag ));
- }
- PTRACE3(("\n"));
-
- FORGET_Frame();
-
- PTRACE2(( "GASP loaded\n" ));
- return TT_Err_Ok;
-
- Fail:
- FREE( gaspranges );
- gas->numRanges = 0;
- return error;
- }
-
-
-/*******************************************************************
- *
- * Function : Load_TrueType_Header
- *
- * Description : Loads the TrueType header table into the face
- * table.
- *
- * Input : face face table to look for
- *
- * Output : Error code.
- *
- ******************************************************************/
-
- FT_INTERNAL_FUNC( TT_Error )
- Load_TrueType_Header( PFace face )
- {
- DEFINE_LOCALS;
-
- Long i;
- TT_Header* header;
-
-
- PTRACE2(( "Load_TT_Header( %08lx )\n", (long)face ));
-
- if ( ( i = TT_LookUp_Table( face, TTAG_head ) ) < 0 )
- {
- PTRACE0(( "Font Header is missing !!\n" ));
- return TT_Err_Header_Table_Missing;
- }
-
- if ( FILE_Seek( face->dirTables[i].Offset ) ||
- ACCESS_Frame( 54L ) )
- return error;
-
- header = &face->fontHeader;
-
- header->Table_Version = GET_ULong();
- header->Font_Revision = GET_ULong();
-
- header->CheckSum_Adjust = GET_Long();
- header->Magic_Number = GET_Long();
-
- header->Flags = GET_UShort();
- header->Units_Per_EM = GET_UShort();
-
- header->Created [0] = GET_Long();
- header->Created [1] = GET_Long();
- header->Modified[0] = GET_Long();
- header->Modified[1] = GET_Long();
-
- header->xMin = GET_Short();
- header->yMin = GET_Short();
- header->xMax = GET_Short();
- header->yMax = GET_Short();
-
- header->Mac_Style = GET_UShort();
- header->Lowest_Rec_PPEM = GET_UShort();
-
- header->Font_Direction = GET_Short();
- header->Index_To_Loc_Format = GET_Short();
- header->Glyph_Data_Format = GET_Short();
-
- FORGET_Frame();
-
- PTRACE2(( " Units per EM : %8u\n", header->Units_Per_EM ));
- PTRACE2(( " IndexToLoc : %8d\n", header->Index_To_Loc_Format ));
- PTRACE2(( "Font Header Loaded.\n" ));
- return TT_Err_Ok;
- }
-
-
-/*******************************************************************
- *
- * Function : Load_TrueType_Metrics
- *
- * Description : Loads the horizontal or vertical metrics table
- * into face object.
- *
- * Input : face
- * vertical set to true when loading the vmtx table,
- * or false for hmtx
- *
- * Output : Error code.
- *
- ******************************************************************/
-
- static
- TT_Error Load_TrueType_Metrics( PFace face,
- Bool vertical )
- {
- DEFINE_LOCALS;
-
- Long n, num_shorts, num_shorts_checked, num_longs;
-
- PLongMetrics* longs;
- PShortMetrics* shorts;
-
- PLongMetrics long_metric;
-
-
- PTRACE2(( "Load_TT_%s_Metrics( %08lx )\n",
- vertical ? "Vertical" : "Horizontal",
- (long)face ));
-
- if ( vertical )
- {
- /* The table is optional, quit silently if it wasn't found */
- /* XXX : Some fonts have a valid vertical header with a non-null */
- /* "number_of_VMetrics" fields, but no corresponding */
- /* 'vmtx' table to get the metrics from (e.g. mingliu) */
- /* */
- /* For safety, we set the field to 0 ! */
- /* */
- n = TT_LookUp_Table( face, TTAG_vmtx );
- if ( n < 0 )
- {
- /* Set the number_Of_VMetrics to 0! */
- PTRACE2(( " no vertical header in file.\n" ));
- face->verticalHeader.number_Of_VMetrics = 0;
- return TT_Err_Ok;
- }
-
- num_longs = face->verticalHeader.number_Of_VMetrics;
- longs = (PLongMetrics*)&face->verticalHeader.long_metrics;
- shorts = (PShortMetrics*)&face->verticalHeader.short_metrics;
- }
- else
- {
- if ( ( n = TT_LookUp_Table( face, TTAG_hmtx ) ) < 0 )
- {
- PERROR(( "!! No Horizontal metrics in file !!\n" ));
- return TT_Err_Hmtx_Table_Missing;
- }
-
- num_longs = face->horizontalHeader.number_Of_HMetrics;
- longs = (PLongMetrics*)&face->horizontalHeader.long_metrics;
- shorts = (PShortMetrics*)&face->horizontalHeader.short_metrics;
- }
-
- /* never trust derived values! */
-
- num_shorts = face->maxProfile.numGlyphs - num_longs;
- num_shorts_checked = ( face->dirTables[n].Length - num_longs * 4 ) / 2;
-
- if ( num_shorts < 0 ) /* sanity check */
- {
- PERROR(( "!! more metrics than glyphs!\n" ));
- if ( vertical )
- return TT_Err_Invalid_Vert_Metrics;
- else
- return TT_Err_Invalid_Horiz_Metrics;
- }
-
- if ( ALLOC_ARRAY( *longs, num_longs, TLongMetrics ) ||
- ALLOC_ARRAY( *shorts, num_shorts, TShortMetrics ) )
- return error;
-
- if ( FILE_Seek( face->dirTables[n].Offset ) ||
- ACCESS_Frame( face->dirTables[n].Length ) )
- return error;
-
- long_metric = *longs;
- for ( n = 0; n < num_longs; n++ )
- {
- long_metric->advance = GET_UShort();
- long_metric->bearing = GET_Short();
- long_metric++;
- }
-
- /* do we have an inconsistent number of metric values? */
-
- if ( num_shorts > num_shorts_checked )
- {
- for ( n = 0; n < num_shorts_checked; n++ )
- (*shorts)[n] = GET_Short();
-
- /* we fill up the missing left side bearings with the */
- /* last valid value. Since this will occur for buggy CJK */
- /* fonts usually, nothing serious will happen. */
-
- for ( n = num_shorts_checked; n < num_shorts; n++ )
- (*shorts)[n] = (*shorts)[num_shorts_checked - 1];
- }
- else
- {
- for ( n = 0; n < num_shorts; n++ )
- (*shorts)[n] = GET_Short();
- }
-
- FORGET_Frame();
-
- PTRACE2(( "loaded\n" ));
- return TT_Err_Ok;
- }
-
-
-/*******************************************************************
- *
- * Function : Load_TrueType_Metrics_Header
- *
- * Description : Loads either the "hhea" or "vhea" table in memory
- *
- * Input : face face table to look for
- * vertical a boolean. When set, queries the optional
- * "vhea" table. Otherwise, load the mandatory
- * "hhea" horizontal header.
- *
- * Output : Error code.
- *
- * Note : This function now loads the corresponding metrics table
- * (either hmtx or vmtx) and attaches it to the header.
- *
- ******************************************************************/
-
- FT_INTERNAL_FUNC( TT_Error )
- Load_TrueType_Metrics_Header( PFace face,
- Bool vertical )
- {
- DEFINE_LOCALS;
-
- Long i;
-
- TT_Horizontal_Header* header;
-
-
- PTRACE2(( vertical ? "Vertical header" : "Horizontal header " ));
-
- if ( vertical )
- {
- face->verticalInfo = 0;
-
- /* The vertical header table is optional, so return quietly if */
- /* we don't find it.. */
- if ( ( i = TT_LookUp_Table( face, TTAG_vhea ) ) < 0 )
- return TT_Err_Ok;
-
- face->verticalInfo = 1;
- header = (TT_Horizontal_Header*)&face->verticalHeader;
- }
- else
- {
- /* The orizontal header is mandatory, return an error if we */
- /* don't find it. */
- if ( ( i = TT_LookUp_Table( face, TTAG_hhea ) ) < 0 )
- return TT_Err_Horiz_Header_Missing;
-
- header = &face->horizontalHeader;
- }
-
- if ( FILE_Seek( face->dirTables[i].Offset ) ||
- ACCESS_Frame( 36L ) )
- return error;
-
- header->Version = GET_ULong();
- header->Ascender = GET_Short();
- header->Descender = GET_Short();
- header->Line_Gap = GET_Short();
-
- header->advance_Width_Max = GET_UShort();
-
- header->min_Left_Side_Bearing = GET_Short();
- header->min_Right_Side_Bearing = GET_Short();
- header->xMax_Extent = GET_Short();
- header->caret_Slope_Rise = GET_Short();
- header->caret_Slope_Run = GET_Short();
-
- header->Reserved0 = GET_Short(); /* this is caret_Offset for
- vertical headers */
- header->Reserved1 = GET_Short();
- header->Reserved2 = GET_Short();
- header->Reserved3 = GET_Short();
- header->Reserved4 = GET_Short();
-
- header->metric_Data_Format = GET_Short();
- header->number_Of_HMetrics = GET_UShort();
-
- FORGET_Frame();
-
- header->long_metrics = NULL;
- header->short_metrics = NULL;
-
- PTRACE2(( "loaded\n" ));
-
- /* Now try to load the corresponding metrics */
-
- return Load_TrueType_Metrics( face, vertical );
- }
-
-
-/*******************************************************************
- *
- * Function : Load_TrueType_Locations
- *
- * Description : Loads the location table into face table.
- *
- * Input : face face table to look for
- *
- * Output : Error code.
- *
- * NOTE:
- * The Font Header *must* be loaded in the leading segment
- * calling this function.
- *
- ******************************************************************/
-
- FT_INTERNAL_FUNC( TT_Error )
- Load_TrueType_Locations( PFace face )
- {
- DEFINE_LOCALS;
-
- Long n, limit;
- Short LongOffsets;
-
-
- PTRACE2(( "Locations " ));
-
- LongOffsets = face->fontHeader.Index_To_Loc_Format;
-
- if ( ( n = TT_LookUp_Table( face, TTAG_loca ) ) < 0 )
- return TT_Err_Locations_Missing;
-
- if ( FILE_Seek( face->dirTables[n].Offset ) )
- return error;
-
- if ( LongOffsets != 0 )
- {
- face->numLocations = face->dirTables[n].Length >> 2;
-
- PTRACE2(( "(32 bit offsets): %12lu ",
- face->numLocations ));
-
- if ( ALLOC_ARRAY( face->glyphLocations,
- face->numLocations,
- Long ) )
- return error;
-
- if ( ACCESS_Frame( face->numLocations * 4L ) )
- return error;
-
- limit = face->numLocations;
-
- for ( n = 0; n < limit; n++ )
- face->glyphLocations[n] = GET_Long();
-
- FORGET_Frame();
- }
- else
- {
- face->numLocations = face->dirTables[n].Length >> 1;
-
- PTRACE2(( "(16 bit offsets): %12lu ",
- face->numLocations ));
-
- if ( ALLOC_ARRAY( face->glyphLocations,
- face->numLocations,
- Long ) )
- return error;
-
- if ( ACCESS_Frame( face->numLocations * 2L ) )
- return error;
-
- limit = face->numLocations;
-
- for ( n = 0; n < limit; n++ )
- face->glyphLocations[n] =
- (Long)((ULong)GET_UShort() * 2);
-
- FORGET_Frame();
- }
-
- PTRACE2(( "loaded\n" ));
-
- return TT_Err_Ok;
- }
-
-
-/*******************************************************************
- *
- * Function : Load_TrueType_Names
- *
- * Description : Loads the name table into face table.
- *
- * Input : face face table to look for
- *
- * Output : Error code.
- *
- ******************************************************************/
-
- FT_INTERNAL_FUNC( TT_Error )
- Load_TrueType_Names( PFace face )
- {
- DEFINE_LOCALS;
-
- UShort i, bytes;
- Long n;
- PByte storage;
-
- TName_Table* names;
- TNameRec* namerec;
-
-
- PTRACE2(( "Names " ));
-
- if ( ( n = TT_LookUp_Table( face, TTAG_name ) ) < 0 )
- {
- /* The name table is required so indicate failure. */
- PTRACE2(( "is missing!\n" ));
-
- return TT_Err_Name_Table_Missing;
- }
-
- /* Seek to the beginning of the table and check the frame access. */
- /* The names table has a 6 byte header. */
- if ( FILE_Seek( face->dirTables[n].Offset ) ||
- ACCESS_Frame( 6L ) )
- return error;
-
- names = &face->nameTable;
-
- /* Load the initial names data. */
- names->format = GET_UShort();
- names->numNameRecords = GET_UShort();
- names->storageOffset = GET_UShort();
-
- FORGET_Frame();
-
- /* Allocate the array of name records. */
- if ( ALLOC_ARRAY( names->names,
- names->numNameRecords,
- TNameRec ) ||
- ACCESS_Frame( names->numNameRecords * 12L ) )
- {
- names->numNameRecords = 0;
- goto Fail;
- }
-
- /* Load the name records and determine how much storage is needed */
- /* to hold the strings themselves. */
-
- for ( i = bytes = 0; i < names->numNameRecords; i++ )
- {
- namerec = names->names + i;
- namerec->platformID = GET_UShort();
- namerec->encodingID = GET_UShort();
- namerec->languageID = GET_UShort();
- namerec->nameID = GET_UShort();
- namerec->stringLength = GET_UShort();
- namerec->stringOffset = GET_UShort();
-
-#if 0
- /* check the ids */
- if ( namerec->platformID <= 3 )
- {
-#endif
- /* this test takes care of 'holes' in the names tables, as */
- /* reported by Erwin */
- if ( (namerec->stringOffset + namerec->stringLength) > bytes )
- bytes = namerec->stringOffset + namerec->stringLength;
-#if 0
- }
-#endif
- }
-
- FORGET_Frame();
-
- /* Allocate storage for the strings if they exist. */
-
- names->storage = NULL;
-
- if ( bytes > 0 )
- {
- if ( ALLOC( storage, bytes ) ||
- FILE_Read_At( face->dirTables[n].Offset + names->storageOffset,
- (void*)storage,
- bytes ) )
- goto Fail_Storage;
-
- names->storage = storage;
-
- /* Go through and assign the string pointers to the name records. */
-
- for ( i = 0; i < names->numNameRecords; i++ )
- {
- namerec = names->names + i;
- namerec->string = storage + names->names[i].stringOffset;
-
-/* It is possible (but rather unlikely) that a new platform ID will be */
-/* added by Apple, so we can't rule out IDs > 3. */
-
-#if 0
- if ( namerec->platformID <= 3 )
- namerec->string = storage + names->names[i].stringOffset;
- else
- {
- namerec->string = NULL;
- namerec->stringLength = 0;
- }
-#endif
- }
- }
-
-#ifdef DEBUG_LEVEL_TRACE
-
- for ( i = 0; i < names->numNameRecords; i++ )
- {
- int j;
-
-
- PTRACE2(( "%d %d %x %d ",
- names->names[i].platformID,
- names->names[i].encodingID,
- names->names[i].languageID,
- names->names[i].nameID ));
-
- /* I know that M$ encoded strings are Unicode, */
- /* but this works reasonable well for debugging purposes. */
- for ( j = 0; j < names->names[i].stringLength; j++ )
- {
- if (names->names[i].string)
- {
- Char c = *(names->names[i].string + j);
-
-
- if ( (Byte)c < 128 )
- PTRACE2(( "%c", c ));
- }
- }
-
- PTRACE2(( "\n" ));
- }
-
-#endif /* DEBUG_LEVEL_TRACE */
-
- PTRACE2(( "loaded\n" ));
- return TT_Err_Ok;
-
- Fail_Storage:
- FREE( storage );
-
- Fail:
- Free_TrueType_Names( face );
- return error;
- }
-
-
-/*******************************************************************
- *
- * Function : Free_TrueType_Names
- *
- * Description : Frees a name table.
- *
- * Input : face face table to look for
- *
- * Output : TT_Err_Ok.
- *
- ******************************************************************/
-
- FT_INTERNAL_FUNC( TT_Error )
- Free_TrueType_Names( PFace face )
- {
- TName_Table* names = &face->nameTable;
-
-
- /* free strings table */
- FREE( names->names );
-
- /* free strings storage */
- FREE( names->storage );
-
- names->numNameRecords = 0;
- names->format = 0;
- names->storageOffset = 0;
-
- return TT_Err_Ok;
- }
-
-
-/*******************************************************************
- *
- * Function : Load_TrueType_CVT
- *
- * Description : Loads cvt table into resident table.
- *
- * Input : face face table to look for
- *
- * Output : Error code.
- *
- ******************************************************************/
-
- FT_INTERNAL_FUNC( TT_Error )
- Load_TrueType_CVT( PFace face )
- {
- DEFINE_LOCALS;
-
- Long n, limit;
-
-
- PTRACE2(( "CVT " ));
-
- if ( ( n = TT_LookUp_Table( face, TTAG_cvt ) ) < 0 )
- {
- PTRACE2(( "is missing!\n" ));
-
- face->cvtSize = 0;
- face->cvt = NULL;
- return TT_Err_Ok;
- }
-
- face->cvtSize = face->dirTables[n].Length / 2;
-
- if ( ALLOC_ARRAY( face->cvt,
- face->cvtSize,
- Short ) )
- return error;
-
- if ( FILE_Seek( face->dirTables[n].Offset ) ||
- ACCESS_Frame( face->cvtSize * 2L ) )
- return error;
-
- limit = face->cvtSize;
-
- for ( n = 0; n < limit; n++ )
- face->cvt[n] = GET_Short();
-
- FORGET_Frame();
-
- PTRACE2(( "loaded\n" ));
-
- return TT_Err_Ok;
- }
-
-
-/*******************************************************************
- *
- * Function : Load_TrueType_CMap
- *
- * Description : Loads the cmap directory in memory.
- * The cmaps themselves are loaded in ttcmap.c .
- *
- * Input : face
- *
- * Output : Error code.
- *
- ******************************************************************/
-
- FT_INTERNAL_FUNC( TT_Error )
- Load_TrueType_CMap( PFace face )
- {
- DEFINE_LOCALS;
-
- Long off, table_start;
- Long n, limit;
-
- TCMapDir cmap_dir;
- TCMapDirEntry entry_;
- PCMapTable cmap;
-
-
- PTRACE2(( "CMaps " ));
-
- if ( ( n = TT_LookUp_Table( face, TTAG_cmap ) ) < 0 )
- return TT_Err_CMap_Table_Missing;
-
- table_start = face->dirTables[n].Offset;
-
- if ( ( FILE_Seek( table_start ) ) ||
- ( ACCESS_Frame( 4L ) ) ) /* 4 bytes cmap header */
- return error;
-
- cmap_dir.tableVersionNumber = GET_UShort();
- cmap_dir.numCMaps = GET_UShort();
-
- FORGET_Frame();
-
- off = FILE_Pos(); /* save offset to cmapdir[] which follows */
-
- /* save space in face table for cmap tables */
- if ( ALLOC_ARRAY( face->cMaps,
- cmap_dir.numCMaps,
- TCMapTable ) )
- return error;
-
- face->numCMaps = cmap_dir.numCMaps;
-
- limit = face->numCMaps;
- cmap = face->cMaps;
-
- for ( n = 0; n < limit; n++ )
- {
- if ( FILE_Seek( off ) ||
- ACCESS_Frame( 8L ) )
- return error;
-
- /* extra code using entry_ for platxxx could be cleaned up later */
- cmap->loaded = FALSE;
- cmap->platformID = entry_.platformID = GET_UShort();
- cmap->platformEncodingID = entry_.platformEncodingID = GET_UShort();
-
- entry_.offset = GET_Long();
-
- FORGET_Frame();
-
- off = FILE_Pos();
-
- if ( FILE_Seek( table_start + entry_.offset ) ||
- ACCESS_Frame( 6L ) )
- return error;
-
- cmap->format = GET_UShort();
- cmap->length = GET_UShort();
- cmap->version = GET_UShort();
-
- FORGET_Frame();
-
- cmap->offset = FILE_Pos();
-
- cmap++;
- }
-
- PTRACE2(( "loaded\n" ));
-
- return TT_Err_Ok;
- }
-
-
-/*******************************************************************
- *
- * Function : Load_TrueType_Programs
- *
- * Description : Loads the font (fpgm) and cvt programs into the
- * face table.
- *
- * Input : face
- *
- * Output : Error code.
- *
- ******************************************************************/
-
- FT_INTERNAL_FUNC( TT_Error )
- Load_TrueType_Programs( PFace face )
- {
- DEFINE_LOCALS_WO_FRAME;
-
- Long n;
-
-
- PTRACE2(( "Font program " ));
-
- /* The font program is optional */
- if ( ( n = TT_LookUp_Table( face, TTAG_fpgm ) ) < 0 )
- {
- face->fontProgram = NULL;
- face->fontPgmSize = 0;
-
- PTRACE2(( "is missing!\n" ));
- }
- else
- {
- face->fontPgmSize = face->dirTables[n].Length;
-
- if ( ALLOC( face->fontProgram,
- face->fontPgmSize ) ||
- FILE_Read_At( face->dirTables[n].Offset,
- (void*)face->fontProgram,
- face->fontPgmSize ) )
- return error;
-
- PTRACE2(( "loaded, %12d bytes\n", face->fontPgmSize ));
- }
-
- PTRACE2(( "Prep program " ));
-
- if ( ( n = TT_LookUp_Table( face, TTAG_prep ) ) < 0 )
- {
- face->cvtProgram = NULL;
- face->cvtPgmSize = 0;
-
- PTRACE2(( "is missing!\n" ));
- }
- else
- {
- face->cvtPgmSize = face->dirTables[n].Length;
-
- if ( ALLOC( face->cvtProgram,
- face->cvtPgmSize ) ||
- FILE_Read_At( face->dirTables[n].Offset,
- (void*)face->cvtProgram,
- face->cvtPgmSize ) )
- return error;
-
- PTRACE2(( "loaded, %12d bytes\n", face->cvtPgmSize ));
- }
-
- return TT_Err_Ok;
- }
-
-
-/*******************************************************************
- *
- * Function : Load_TrueType_OS_2
- *
- * Description : Loads the OS2 Table.
- *
- * Input : face
- *
- * Output : Error code.
- *
- * NOTE : This function used to be named Load_TrueType_OS2.
- * We changed its name to avoid a name clash (OS2 happens
- * to be a reserved name on some OS/2 compilers...)
- *
- ******************************************************************/
-
- FT_INTERNAL_FUNC( TT_Error )
- Load_TrueType_OS_2( PFace face )
- {
- DEFINE_LOCALS;
-
- Long i;
- TT_OS2* os2;
-
-
- PTRACE2(( "OS/2 Table " ));
-
- /* We now support old Mac fonts where the OS/2 table doesn't */
- /* exist. Simply put, we set the `version' field to 0xFFFF */
- /* and test this value each time we need to access the table. */
- if ( ( i = TT_LookUp_Table( face, TTAG_OS2 ) ) < 0 )
- {
- PTRACE2(( "is missing\n!" ));
- face->os2.version = 0xFFFF;
- error = TT_Err_Ok;
- return TT_Err_Ok;
- }
-
- if ( FILE_Seek( face->dirTables[i].Offset ) ||
- ACCESS_Frame( 78L ) )
- return error;
-
- os2 = &face->os2;
-
- os2->version = GET_UShort();
- os2->xAvgCharWidth = GET_Short();
- os2->usWeightClass = GET_UShort();
- os2->usWidthClass = GET_UShort();
- os2->fsType = GET_Short();
- os2->ySubscriptXSize = GET_Short();
- os2->ySubscriptYSize = GET_Short();
- os2->ySubscriptXOffset = GET_Short();
- os2->ySubscriptYOffset = GET_Short();
- os2->ySuperscriptXSize = GET_Short();
- os2->ySuperscriptYSize = GET_Short();
- os2->ySuperscriptXOffset = GET_Short();
- os2->ySuperscriptYOffset = GET_Short();
- os2->yStrikeoutSize = GET_Short();
- os2->yStrikeoutPosition = GET_Short();
- os2->sFamilyClass = GET_Short();
-
- for ( i = 0; i < 10; i++ )
- os2->panose[i] = GET_Byte();
-
- os2->ulUnicodeRange1 = GET_ULong();
- os2->ulUnicodeRange2 = GET_ULong();
- os2->ulUnicodeRange3 = GET_ULong();
- os2->ulUnicodeRange4 = GET_ULong();
-
- for ( i = 0; i < 4; i++ )
- os2->achVendID[i] = GET_Byte();
-
- os2->fsSelection = GET_UShort();
- os2->usFirstCharIndex = GET_UShort();
- os2->usLastCharIndex = GET_UShort();
- os2->sTypoAscender = GET_Short();
- os2->sTypoDescender = GET_Short();
- os2->sTypoLineGap = GET_Short();
- os2->usWinAscent = GET_UShort();
- os2->usWinDescent = GET_UShort();
-
- FORGET_Frame();
-
- os2->ulCodePageRange1 = 0;
- os2->ulCodePageRange2 = 0;
- os2->sxHeight = 0;
- os2->sCapHeight = 0;
- os2->usDefaultChar = 0;
- os2->usBreakChar = 0;
- os2->usMaxContext = 0;
-
- if ( os2->version >= 0x0001 )
- {
- /* only version 1 tables */
-
- if ( ACCESS_Frame( 8L ) ) /* read into frame */
- return error;
-
- os2->ulCodePageRange1 = GET_ULong();
- os2->ulCodePageRange2 = GET_ULong();
-
- FORGET_Frame();
-
- if ( os2->version >= 0x0002 )
- {
- /* only version 2 tables */
-
- if ( ACCESS_Frame( 10L ) )
- return error;
-
- os2->sxHeight = GET_Short();
- os2->sCapHeight = GET_Short();
- os2->usDefaultChar = GET_UShort();
- os2->usBreakChar = GET_UShort();
- os2->usMaxContext = GET_UShort();
-
- FORGET_Frame();
- }
- }
-
- PTRACE2(( "loaded\n" ));
-
- return TT_Err_Ok;
- }
-
-
-/*******************************************************************
- *
- * Function : Load_TrueType_PostScript
- *
- * Description : Loads the post table into face table.
- *
- * Input : face face table to look for
- *
- * Output : SUCCESS on success. FAILURE on error.
- *
- ******************************************************************/
-
- FT_INTERNAL_FUNC( TT_Error )
- Load_TrueType_PostScript( PFace face )
- {
- DEFINE_LOCALS;
-
- Long i;
-
- TT_Postscript* post = &face->postscript;
-
-
- PTRACE2(( "PostScript " ));
-
- if ( ( i = TT_LookUp_Table( face, TTAG_post ) ) < 0 )
- return TT_Err_Post_Table_Missing;
-
- if ( FILE_Seek( face->dirTables[i].Offset ) ||
- ACCESS_Frame( 32L ) )
- return error;
-
- /* read frame data into face table */
-
- post->FormatType = GET_ULong();
- post->italicAngle = GET_ULong();
- post->underlinePosition = GET_Short();
- post->underlineThickness = GET_Short();
- post->isFixedPitch = GET_ULong();
- post->minMemType42 = GET_ULong();
- post->maxMemType42 = GET_ULong();
- post->minMemType1 = GET_ULong();
- post->maxMemType1 = GET_ULong();
-
- FORGET_Frame();
-
- /* we don't load the glyph names, we do that in a */
- /* library extension (ftxpost). */
-
- PTRACE2(( "loaded\n" ));
-
- return TT_Err_Ok;
- }
-
-
-/*******************************************************************
- *
- * Function : Load_TrueType_Hdmx
- *
- * Description : Loads the horizontal device metrics table.
- *
- * Input : face face object to look for
- *
- * Output : SUCCESS on success. FAILURE on error.
- *
- ******************************************************************/
-
- FT_INTERNAL_FUNC( TT_Error )
- Load_TrueType_Hdmx( PFace face )
- {
- DEFINE_LOCALS;
-
- TT_Hdmx_Record* rec;
- TT_Hdmx hdmx;
- Long table;
- UShort n, num_glyphs;
- Long record_size;
-
-
- hdmx.version = 0;
- hdmx.num_records = 0;
- hdmx.records = 0;
-
- face->hdmx = hdmx;
-
- if ( ( table = TT_LookUp_Table( face, TTAG_hdmx ) ) < 0 )
- return TT_Err_Ok;
-
- if ( FILE_Seek( face->dirTables[table].Offset ) ||
- ACCESS_Frame( 8L ) )
- return error;
-
- hdmx.version = GET_UShort();
- hdmx.num_records = GET_Short();
- record_size = GET_Long();
-
- FORGET_Frame();
-
- /* Only recognize format 0 */
-
- if ( hdmx.version != 0 )
- return TT_Err_Ok;
-
- if ( ALLOC( hdmx.records, sizeof ( TT_Hdmx_Record ) * hdmx.num_records ) )
- return error;
-
- num_glyphs = face->numGlyphs;
- record_size -= num_glyphs+2;
- rec = hdmx.records;
-
- for ( n = 0; n < hdmx.num_records; n++ )
- {
- /* read record */
-
- if ( ACCESS_Frame( 2L ) )
- goto Fail;
-
- rec->ppem = GET_Byte();
- rec->max_width = GET_Byte();
-
- FORGET_Frame();
-
- if ( ALLOC( rec->widths, num_glyphs ) ||
- FILE_Read( rec->widths, num_glyphs ) )
- goto Fail;
-
- /* skip padding bytes */
- if ( record_size > 0 )
- if ( FILE_Skip( record_size ) )
- goto Fail;
-
- rec++;
- }
-
- face->hdmx = hdmx;
-
- return TT_Err_Ok;
-
- Fail:
- for ( n = 0; n < hdmx.num_records; n++ )
- FREE( hdmx.records[n].widths );
-
- FREE( hdmx.records );
- return error;
- }
-
-
-/*******************************************************************
- *
- * Function : Free_TrueType_Hdmx
- *
- * Description : Frees the horizontal device metrics table.
- *
- * Input : face face object to look for
- *
- * Output : TT_Err_Ok.
- *
- ******************************************************************/
-
- FT_INTERNAL_FUNC( TT_Error )
- Free_TrueType_Hdmx( PFace face )
- {
- UShort n;
-
-
- if ( !face )
- return TT_Err_Ok;
-
- for ( n = 0; n < face->hdmx.num_records; n++ )
- FREE( face->hdmx.records[n].widths );
-
- FREE( face->hdmx.records );
- face->hdmx.num_records = 0;
-
- return TT_Err_Ok;
- }
-
-
-/*******************************************************************
- *
- * Function : Load_TrueType_Any
- *
- * Description : Loads any font table into client memory. Used by
- * the TT_Get_Font_Data() API function.
- *
- * Input : face face object to look for
- *
- * tag tag of table to load. Use the value 0 if you
- * want to access the whole font file, else set
- * this parameter to a valid TrueType table tag
- * that you can forge with the MAKE_TT_TAG
- * macro.
- *
- * offset starting offset in the table (or the file
- * if tag == 0 )
- *
- * buffer address of target buffer
- *
- * length address of decision variable :
- *
- * if length == NULL :
- * load the whole table. returns an
- * an error if 'offset' == 0 !!
- *
- * if *length == 0 :
- * exit immediately, returning the
- * length of the given table, or of
- * the font file, depending on the
- * value of 'tag'
- *
- * if *length != 0 :
- * load the next 'length' bytes of
- * table or font, starting at offset
- * 'offset' (in table or font too).
- *
- * Output : Error condition
- *
- ******************************************************************/
-
- FT_INTERNAL_FUNC( TT_Error )
- Load_TrueType_Any( PFace face,
- ULong tag,
- Long offset,
- void* buffer,
- Long* length )
- {
- TT_Stream stream;
- TT_Error error;
- Long table;
- ULong size;
-
-
- if ( tag != 0 )
- {
- /* look for tag in font directory */
- table = TT_LookUp_Table( face, tag );
- if ( table < 0 )
- return TT_Err_Table_Missing;
-
- offset += face->dirTables[table].Offset;
- size = face->dirTables[table].Length;
- }
- else
- /* tag = 0 -- the use want to access the font file directly */
- size = TT_Stream_Size( face->stream );
-
- if ( length && *length == 0 )
- {
- *length = size;
- return TT_Err_Ok;
- }
-
- if ( length )
- size = *length;
-
- if ( !USE_Stream( face->stream, stream ) )
- (void)FILE_Read_At( offset, buffer, size );
- DONE_Stream( stream );
-
- return error;
- }
-
-
-/* END */