+++ /dev/null
-/* $XConsortium: pcfread.c /main/18 1996/09/28 16:48:33 rws $ */
-
-/*
-
-Copyright (c) 1990 X Consortium
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be included
-in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR
-OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
-ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
-OTHER DEALINGS IN THE SOFTWARE.
-
-Except as contained in this notice, the name of the X Consortium shall
-not be used in advertising or otherwise to promote the sale, use or
-other dealings in this Software without prior written authorization
-from the X Consortium.
-
-*/
-
-/*
- * Author: Keith Packard, MIT X Consortium
- */
-
-#include "fntfilst.h"
-#include "bitmap.h"
-#include "pcf.h"
-#ifndef MAX
-#define MAX(a,b) (((a)>(b)) ? a : b)
-#endif
-
-/* Read PCF font files */
-
-void pcfUnloadFont();
-static int position;
-
-static int
-pcfGetLSB32(file)
- FontFilePtr file;
-{
- int c;
-
- c = FontFileGetc(file);
- c |= FontFileGetc(file) << 8;
- c |= FontFileGetc(file) << 16;
- c |= FontFileGetc(file) << 24;
- position += 4;
- return c;
-}
-
-static int
-pcfGetINT32(file, format)
- FontFilePtr file;
- CARD32 format;
-{
- int c;
-
- if (PCF_BYTE_ORDER(format) == MSBFirst) {
- c = FontFileGetc(file) << 24;
- c |= FontFileGetc(file) << 16;
- c |= FontFileGetc(file) << 8;
- c |= FontFileGetc(file);
- } else {
- c = FontFileGetc(file);
- c |= FontFileGetc(file) << 8;
- c |= FontFileGetc(file) << 16;
- c |= FontFileGetc(file) << 24;
- }
- position += 4;
- return c;
-}
-
-static int
-pcfGetINT16(file, format)
- FontFilePtr file;
- CARD32 format;
-{
- int c;
-
- if (PCF_BYTE_ORDER(format) == MSBFirst) {
- c = FontFileGetc(file) << 8;
- c |= FontFileGetc(file);
- } else {
- c = FontFileGetc(file);
- c |= FontFileGetc(file) << 8;
- }
- position += 2;
- return c;
-}
-
-#define pcfGetINT8(file, format) (position++, FontFileGetc(file))
-
-static PCFTablePtr
-pcfReadTOC(file, countp)
- FontFilePtr file;
- int *countp;
-{
- CARD32 version;
- PCFTablePtr tables;
- int count;
- int i;
-
- position = 0;
- version = pcfGetLSB32(file);
- if (version != PCF_FILE_VERSION)
- return (PCFTablePtr) NULL;
- count = pcfGetLSB32(file);
- tables = (PCFTablePtr) xalloc(count * sizeof(PCFTableRec));
- if (!tables)
- return (PCFTablePtr) NULL;
- for (i = 0; i < count; i++) {
- tables[i].type = pcfGetLSB32(file);
- tables[i].format = pcfGetLSB32(file);
- tables[i].size = pcfGetLSB32(file);
- tables[i].offset = pcfGetLSB32(file);
- }
- *countp = count;
- return tables;
-}
-
-/*
- * PCF supports two formats for metrics, both the regular
- * jumbo size, and 'lite' metrics, which are useful
- * for most fonts which have even vaguely reasonable
- * metrics
- */
-
-static
-pcfGetMetric(file, format, metric)
- FontFilePtr file;
- CARD32 format;
- xCharInfo *metric;
-{
- metric->leftSideBearing = pcfGetINT16(file, format);
- metric->rightSideBearing = pcfGetINT16(file, format);
- metric->characterWidth = pcfGetINT16(file, format);
- metric->ascent = pcfGetINT16(file, format);
- metric->descent = pcfGetINT16(file, format);
- metric->attributes = pcfGetINT16(file, format);
-}
-
-static
-pcfGetCompressedMetric(file, format, metric)
- FontFilePtr file;
- CARD32 format;
- xCharInfo *metric;
-{
- metric->leftSideBearing = pcfGetINT8(file, format) - 0x80;
- metric->rightSideBearing = pcfGetINT8(file, format) - 0x80;
- metric->characterWidth = pcfGetINT8(file, format) - 0x80;
- metric->ascent = pcfGetINT8(file, format) - 0x80;
- metric->descent = pcfGetINT8(file, format) - 0x80;
- metric->attributes = 0;
-}
-
-/*
- * Position the file to the begining of the specified table
- * in the font file
- */
-static Bool
-pcfSeekToType(file, tables, ntables, type, formatp, sizep)
- FontFilePtr file;
- PCFTablePtr tables;
- int ntables;
- CARD32 type;
- CARD32 *formatp;
- CARD32 *sizep;
-{
- int i;
-
- for (i = 0; i < ntables; i++)
- if (tables[i].type == type) {
- if (position > tables[i].offset)
- return FALSE;
- if (!FontFileSkip(file, tables[i].offset - position))
- return FALSE;
- position = tables[i].offset;
- *sizep = tables[i].size;
- *formatp = tables[i].format;
- return TRUE;
- }
- return FALSE;
-}
-
-static Bool
-pcfHasType (tables, ntables, type)
- PCFTablePtr tables;
- int ntables;
- CARD32 type;
-{
- int i;
-
- for (i = 0; i < ntables; i++)
- if (tables[i].type == type)
- return TRUE;
- return FALSE;
-}
-
-/*
- * pcfGetProperties
- *
- * Reads the font properties from the font file, filling in the FontInfo rec
- * supplied. Used by by both ReadFont and ReadFontInfo routines.
- */
-
-static Bool
-pcfGetProperties(pFontInfo, file, tables, ntables)
- FontInfoPtr pFontInfo;
- FontFilePtr file;
- PCFTablePtr tables;
- int ntables;
-{
- FontPropPtr props = 0;
- int nprops;
- char *isStringProp = 0;
- CARD32 format;
- int i;
- int size;
- int string_size;
- char *strings;
-
- /* font properties */
-
- if (!pcfSeekToType(file, tables, ntables, PCF_PROPERTIES, &format, &size))
- goto Bail;
- format = pcfGetLSB32(file);
- if (!PCF_FORMAT_MATCH(format, PCF_DEFAULT_FORMAT))
- goto Bail;
- nprops = pcfGetINT32(file, format);
- props = (FontPropPtr) xalloc(nprops * sizeof(FontPropRec));
- if (!props)
- goto Bail;
- isStringProp = (char *) xalloc(nprops * sizeof(char));
- if (!isStringProp)
- goto Bail;
- for (i = 0; i < nprops; i++) {
- props[i].name = pcfGetINT32(file, format);
- isStringProp[i] = pcfGetINT8(file, format);
- props[i].value = pcfGetINT32(file, format);
- }
- /* pad the property array */
- /*
- * clever here - nprops is the same as the number of odd-units read, as
- * only isStringProp are odd length
- */
- if (nprops & 3)
- {
- i = 4 - (nprops & 3);
- FontFileSkip(file, i);
- position += i;
- }
- string_size = pcfGetINT32(file, format);
- strings = (char *) xalloc(string_size);
- if (!strings) {
- goto Bail;
- }
- FontFileRead(file, strings, string_size);
- position += string_size;
- for (i = 0; i < nprops; i++) {
- props[i].name = MakeAtom(strings + props[i].name,
- strlen(strings + props[i].name), TRUE);
- if (isStringProp[i]) {
- props[i].value = MakeAtom(strings + props[i].value,
- strlen(strings + props[i].value), TRUE);
- }
- }
- xfree(strings);
- pFontInfo->isStringProp = isStringProp;
- pFontInfo->props = props;
- pFontInfo->nprops = nprops;
- return TRUE;
-Bail:
- xfree(isStringProp);
- xfree(props);
- return FALSE;
-}
-
-
-/*
- * pcfReadAccel
- *
- * Fill in the accelerator information from the font file; used
- * to read both BDF_ACCELERATORS and old style ACCELERATORS
- */
-
-static Bool
-pcfGetAccel(pFontInfo, file, tables, ntables, type)
- FontInfoPtr pFontInfo;
- FontFilePtr file;
- PCFTablePtr tables;
- int ntables;
- CARD32 type;
-{
- CARD32 format;
- int size;
-
- if (!pcfSeekToType(file, tables, ntables, type, &format, &size))
- goto Bail;
- format = pcfGetLSB32(file);
- if (!PCF_FORMAT_MATCH(format, PCF_DEFAULT_FORMAT) &&
- !PCF_FORMAT_MATCH(format, PCF_ACCEL_W_INKBOUNDS))
- {
- goto Bail;
- }
- pFontInfo->noOverlap = pcfGetINT8(file, format);
- pFontInfo->constantMetrics = pcfGetINT8(file, format);
- pFontInfo->terminalFont = pcfGetINT8(file, format);
- pFontInfo->constantWidth = pcfGetINT8(file, format);
- pFontInfo->inkInside = pcfGetINT8(file, format);
- pFontInfo->inkMetrics = pcfGetINT8(file, format);
- pFontInfo->drawDirection = pcfGetINT8(file, format);
- pFontInfo->anamorphic = FALSE;
- pFontInfo->cachable = TRUE;
- /* natural alignment */ pcfGetINT8(file, format);
- pFontInfo->fontAscent = pcfGetINT32(file, format);
- pFontInfo->fontDescent = pcfGetINT32(file, format);
- pFontInfo->maxOverlap = pcfGetINT32(file, format);
- pcfGetMetric(file, format, &pFontInfo->minbounds);
- pcfGetMetric(file, format, &pFontInfo->maxbounds);
- if (PCF_FORMAT_MATCH(format, PCF_ACCEL_W_INKBOUNDS)) {
- pcfGetMetric(file, format, &pFontInfo->ink_minbounds);
- pcfGetMetric(file, format, &pFontInfo->ink_maxbounds);
- } else {
- pFontInfo->ink_minbounds = pFontInfo->minbounds;
- pFontInfo->ink_maxbounds = pFontInfo->maxbounds;
- }
- return TRUE;
-Bail:
- return FALSE;
-}
-
-int
-pcfReadFont(pFont, file, bit, byte, glyph, scan)
- FontPtr pFont;
- FontFilePtr file;
- int bit,
- byte,
- glyph,
- scan;
-{
- CARD32 format;
- CARD32 size;
- BitmapFontPtr bitmapFont = 0;
- int i;
- PCFTablePtr tables = 0;
- int ntables;
- int nmetrics;
- int nbitmaps;
- int sizebitmaps;
- int nink_metrics;
- CharInfoPtr metrics = 0;
- xCharInfo *ink_metrics = 0;
- char *bitmaps = 0;
- CharInfoPtr *encoding = 0;
- int nencoding;
- int encodingOffset;
- CARD32 bitmapSizes[GLYPHPADOPTIONS];
- CARD32 *offsets = 0;
- Bool hasBDFAccelerators;
-
- pFont->info.props = 0;
- if (!(tables = pcfReadTOC(file, &ntables)))
- goto Bail;
-
- /* properties */
-
- if (!pcfGetProperties(&pFont->info, file, tables, ntables))
- goto Bail;
-
- /* Use the old accelerators if no BDF accelerators are in the file */
-
- hasBDFAccelerators = pcfHasType (tables, ntables, PCF_BDF_ACCELERATORS);
- if (!hasBDFAccelerators)
- if (!pcfGetAccel (&pFont->info, file, tables, ntables, PCF_ACCELERATORS))
- goto Bail;
-
- /* metrics */
-
- if (!pcfSeekToType(file, tables, ntables, PCF_METRICS, &format, &size)) {
- goto Bail;
- }
- format = pcfGetLSB32(file);
- if (!PCF_FORMAT_MATCH(format, PCF_DEFAULT_FORMAT) &&
- !PCF_FORMAT_MATCH(format, PCF_COMPRESSED_METRICS)) {
- goto Bail;
- }
- if (PCF_FORMAT_MATCH(format, PCF_DEFAULT_FORMAT))
- nmetrics = pcfGetINT32(file, format);
- else
- nmetrics = pcfGetINT16(file, format);
- metrics = (CharInfoPtr) xalloc(nmetrics * sizeof(CharInfoRec));
- if (!metrics) {
- goto Bail;
- }
- for (i = 0; i < nmetrics; i++)
- if (PCF_FORMAT_MATCH(format, PCF_DEFAULT_FORMAT))
- pcfGetMetric(file, format, &(metrics + i)->metrics);
- else
- pcfGetCompressedMetric(file, format, &(metrics + i)->metrics);
-
- /* bitmaps */
-
- if (!pcfSeekToType(file, tables, ntables, PCF_BITMAPS, &format, &size))
- goto Bail;
- format = pcfGetLSB32(file);
- if (!PCF_FORMAT_MATCH(format, PCF_DEFAULT_FORMAT))
- goto Bail;
-
- nbitmaps = pcfGetINT32(file, format);
- if (nbitmaps != nmetrics)
- goto Bail;
-
- offsets = (CARD32 *) xalloc(nbitmaps * sizeof(CARD32));
- if (!offsets)
- goto Bail;
-
- for (i = 0; i < nbitmaps; i++)
- offsets[i] = pcfGetINT32(file, format);
-
- for (i = 0; i < GLYPHPADOPTIONS; i++)
- bitmapSizes[i] = pcfGetINT32(file, format);
- sizebitmaps = bitmapSizes[PCF_GLYPH_PAD_INDEX(format)];
- /* guard against completely empty font */
- bitmaps = (char *) xalloc(sizebitmaps ? sizebitmaps : 1);
- if (!bitmaps)
- goto Bail;
- FontFileRead(file, bitmaps, sizebitmaps);
- position += sizebitmaps;
-
- if (PCF_BIT_ORDER(format) != bit)
- BitOrderInvert(bitmaps, sizebitmaps);
- if ((PCF_BYTE_ORDER(format) == PCF_BIT_ORDER(format)) != (bit == byte)) {
- switch (bit == byte ? PCF_SCAN_UNIT(format) : scan) {
- case 1:
- break;
- case 2:
- TwoByteSwap(bitmaps, sizebitmaps);
- break;
- case 4:
- FourByteSwap(bitmaps, sizebitmaps);
- break;
- }
- }
- if (PCF_GLYPH_PAD(format) != glyph) {
- char *padbitmaps;
- int sizepadbitmaps;
- int old,
- new;
- xCharInfo *metric;
-
- sizepadbitmaps = bitmapSizes[PCF_SIZE_TO_INDEX(glyph)];
- padbitmaps = (char *) xalloc(sizepadbitmaps);
- if (!padbitmaps) {
- goto Bail;
- }
- new = 0;
- for (i = 0; i < nbitmaps; i++) {
- old = offsets[i];
- metric = &metrics[i].metrics;
- offsets[i] = new;
- new += RepadBitmap(bitmaps + old, padbitmaps + new,
- PCF_GLYPH_PAD(format), glyph,
- metric->rightSideBearing - metric->leftSideBearing,
- metric->ascent + metric->descent);
- }
- xfree(bitmaps);
- bitmaps = padbitmaps;
- }
- for (i = 0; i < nbitmaps; i++)
- metrics[i].bits = bitmaps + offsets[i];
-
- xfree(offsets);
- offsets = NULL;
-
- /* ink metrics ? */
-
- ink_metrics = NULL;
- if (pcfSeekToType(file, tables, ntables, PCF_INK_METRICS, &format, &size)) {
- format = pcfGetLSB32(file);
- if (!PCF_FORMAT_MATCH(format, PCF_DEFAULT_FORMAT) &&
- !PCF_FORMAT_MATCH(format, PCF_COMPRESSED_METRICS)) {
- goto Bail;
- }
- if (PCF_FORMAT_MATCH(format, PCF_DEFAULT_FORMAT))
- nink_metrics = pcfGetINT32(file, format);
- else
- nink_metrics = pcfGetINT16(file, format);
- if (nink_metrics != nmetrics)
- goto Bail;
- ink_metrics = (xCharInfo *) xalloc(nink_metrics * sizeof(xCharInfo));
- if (!ink_metrics)
- goto Bail;
- for (i = 0; i < nink_metrics; i++)
- if (PCF_FORMAT_MATCH(format, PCF_DEFAULT_FORMAT))
- pcfGetMetric(file, format, ink_metrics + i);
- else
- pcfGetCompressedMetric(file, format, ink_metrics + i);
- }
-
- /* encoding */
-
- if (!pcfSeekToType(file, tables, ntables, PCF_BDF_ENCODINGS, &format, &size))
- goto Bail;
- format = pcfGetLSB32(file);
- if (!PCF_FORMAT_MATCH(format, PCF_DEFAULT_FORMAT))
- goto Bail;
-
- pFont->info.firstCol = pcfGetINT16(file, format);
- pFont->info.lastCol = pcfGetINT16(file, format);
- pFont->info.firstRow = pcfGetINT16(file, format);
- pFont->info.lastRow = pcfGetINT16(file, format);
- pFont->info.defaultCh = pcfGetINT16(file, format);
-
- nencoding = (pFont->info.lastCol - pFont->info.firstCol + 1) *
- (pFont->info.lastRow - pFont->info.firstRow + 1);
-
- encoding = (CharInfoPtr *) xalloc(nencoding * sizeof(CharInfoPtr));
- if (!encoding)
- goto Bail;
-
- pFont->info.allExist = TRUE;
- for (i = 0; i < nencoding; i++) {
- encodingOffset = pcfGetINT16(file, format);
- if (encodingOffset == 0xFFFF) {
- pFont->info.allExist = FALSE;
- encoding[i] = 0;
- } else
- encoding[i] = metrics + encodingOffset;
- }
-
- /* BDF style accelerators (i.e. bounds based on encoded glyphs) */
-
- if (hasBDFAccelerators)
- if (!pcfGetAccel (&pFont->info, file, tables, ntables, PCF_BDF_ACCELERATORS))
- goto Bail;
-
- bitmapFont = (BitmapFontPtr) xalloc(sizeof *bitmapFont);
- if (!bitmapFont)
- goto Bail;
-
- bitmapFont->version_num = PCF_FILE_VERSION;
- bitmapFont->num_chars = nmetrics;
- bitmapFont->num_tables = ntables;
- bitmapFont->metrics = metrics;
- bitmapFont->ink_metrics = ink_metrics;
- bitmapFont->bitmaps = bitmaps;
- bitmapFont->encoding = encoding;
- bitmapFont->pDefault = (CharInfoPtr) 0;
- if (pFont->info.defaultCh != (unsigned short) NO_SUCH_CHAR) {
- unsigned int r,
- c,
- cols;
-
- r = pFont->info.defaultCh >> 8;
- c = pFont->info.defaultCh & 0xFF;
- if (pFont->info.firstRow <= r && r <= pFont->info.lastRow &&
- pFont->info.firstCol <= c && c <= pFont->info.lastCol) {
- cols = pFont->info.lastCol - pFont->info.firstCol + 1;
- r = r - pFont->info.firstRow;
- c = c - pFont->info.firstCol;
- bitmapFont->pDefault = encoding[r * cols + c];
- }
- }
- bitmapFont->bitmapExtra = (BitmapExtraPtr) 0;
- pFont->fontPrivate = (pointer) bitmapFont;
- pFont->get_glyphs = bitmapGetGlyphs;
- pFont->get_metrics = bitmapGetMetrics;
- pFont->unload_font = pcfUnloadFont;
- pFont->unload_glyphs = NULL;
- pFont->bit = bit;
- pFont->byte = byte;
- pFont->glyph = glyph;
- pFont->scan = scan;
- xfree(tables);
- return Successful;
-Bail:
- xfree(ink_metrics);
- xfree(encoding);
- xfree(bitmaps);
- xfree(offsets);
- xfree(metrics);
- xfree(pFont->info.props);
- pFont->info.props = 0;
- xfree(bitmapFont);
- xfree(tables);
- return AllocError;
-}
-
-int
-pcfReadFontInfo(pFontInfo, file)
- FontInfoPtr pFontInfo;
- FontFilePtr file;
-{
- PCFTablePtr tables;
- int ntables;
- CARD32 format;
- CARD32 size;
- int nencoding;
- Bool hasBDFAccelerators;
-
- pFontInfo->isStringProp = NULL;
- pFontInfo->props = NULL;
-
- if (!(tables = pcfReadTOC(file, &ntables)))
- goto Bail;
-
- /* properties */
-
- if (!pcfGetProperties(pFontInfo, file, tables, ntables))
- goto Bail;
-
- /* Use the old accelerators if no BDF accelerators are in the file */
-
- hasBDFAccelerators = pcfHasType (tables, ntables, PCF_BDF_ACCELERATORS);
- if (!hasBDFAccelerators)
- if (!pcfGetAccel (pFontInfo, file, tables, ntables, PCF_ACCELERATORS))
- goto Bail;
-
- /* encoding */
-
- if (!pcfSeekToType(file, tables, ntables, PCF_BDF_ENCODINGS, &format, &size))
- goto Bail;
- format = pcfGetLSB32(file);
- if (!PCF_FORMAT_MATCH(format, PCF_DEFAULT_FORMAT))
- goto Bail;
-
- pFontInfo->firstCol = pcfGetINT16(file, format);
- pFontInfo->lastCol = pcfGetINT16(file, format);
- pFontInfo->firstRow = pcfGetINT16(file, format);
- pFontInfo->lastRow = pcfGetINT16(file, format);
- pFontInfo->defaultCh = pcfGetINT16(file, format);
-
- nencoding = (pFontInfo->lastCol - pFontInfo->firstCol + 1) *
- (pFontInfo->lastRow - pFontInfo->firstRow + 1);
-
- pFontInfo->allExist = TRUE;
- while (nencoding--) {
- if (pcfGetINT16(file, format) == 0xFFFF)
- pFontInfo->allExist = FALSE;
- }
-
- /* BDF style accelerators (i.e. bounds based on encoded glyphs) */
-
- if (hasBDFAccelerators)
- if (!pcfGetAccel (pFontInfo, file, tables, ntables, PCF_BDF_ACCELERATORS))
- goto Bail;
-
- xfree(tables);
- return Successful;
-Bail:
- xfree (pFontInfo->props);
- xfree (pFontInfo->isStringProp);
- xfree(tables);
- return AllocError;
-}
-
-void
-pcfUnloadFont(pFont)
- FontPtr pFont;
-{
- BitmapFontPtr bitmapFont;
-
- bitmapFont = (BitmapFontPtr) pFont->fontPrivate;
- xfree(bitmapFont->ink_metrics);
- xfree(bitmapFont->encoding);
- xfree(bitmapFont->bitmaps);
- xfree(bitmapFont->metrics);
- xfree(pFont->info.isStringProp);
- xfree(pFont->info.props);
- xfree(bitmapFont);
- xfree(pFont->devPrivates);
- xfree(pFont);
-}
-
-int
-pmfReadFont(pFont, file, bit, byte, glyph, scan)
- FontPtr pFont;
- FontFilePtr file;
- int bit,
- byte,
- glyph,
- scan;
-{
- CARD32 format;
- CARD32 size;
- BitmapFontPtr bitmapFont = 0;
- int i;
- PCFTablePtr tables = 0;
- int ntables;
- int nmetrics;
- int sizebitmaps;
- int nink_metrics;
- CharInfoPtr metrics = 0;
- xCharInfo *ink_metrics = 0;
- char *bitmaps = 0;
- CharInfoPtr *encoding = 0;
- int nencoding;
- int encodingOffset;
- CARD32 bitmapSizes[GLYPHPADOPTIONS];
- Bool hasBDFAccelerators;
- CharInfoPtr pci;
-
- pFont->info.props = 0;
- if (!(tables = pcfReadTOC(file, &ntables)))
- goto Bail;
-
- /* properties */
-
- if (!pcfGetProperties(&pFont->info, file, tables, ntables))
- goto Bail;
-
- /* Use the old accelerators if no BDF accelerators are in the file */
-
- hasBDFAccelerators = pcfHasType (tables, ntables, PCF_BDF_ACCELERATORS);
- if (!hasBDFAccelerators)
- if (!pcfGetAccel (&pFont->info, file, tables, ntables, PCF_ACCELERATORS))
- goto Bail;
-
- /* metrics */
-
- if (!pcfSeekToType(file, tables, ntables, PCF_METRICS, &format, &size)) {
- goto Bail;
- }
- format = pcfGetLSB32(file);
- if (!PCF_FORMAT_MATCH(format, PCF_DEFAULT_FORMAT) &&
- !PCF_FORMAT_MATCH(format, PCF_COMPRESSED_METRICS)) {
- goto Bail;
- }
- if (PCF_FORMAT_MATCH(format, PCF_DEFAULT_FORMAT))
- nmetrics = pcfGetINT32(file, format);
- else
- nmetrics = pcfGetINT16(file, format);
- metrics = (CharInfoPtr) xalloc(nmetrics * sizeof(CharInfoRec));
- if (!metrics) {
- goto Bail;
- }
- for (i = 0; i < nmetrics; i++)
- if (PCF_FORMAT_MATCH(format, PCF_DEFAULT_FORMAT))
- pcfGetMetric(file, format, &(metrics + i)->metrics);
- else
- pcfGetCompressedMetric(file, format, &(metrics + i)->metrics);
-
- /* Set the bitmaps to all point to the same zero filled array
- * that is the size of the largest bitmap.
- */
-
- pci = metrics;
- sizebitmaps = 0;
- for (i = 0; i < nmetrics; i++)
- {
- sizebitmaps = MAX(sizebitmaps,BYTES_FOR_GLYPH(pci, glyph));
- pci++;
- }
-
- sizebitmaps = BUFSIZ;
- /* guard against completely empty font */
- bitmaps = (char *) xalloc(sizebitmaps);
- if (!bitmaps)
- goto Bail;
-
- memset(bitmaps,0,sizebitmaps);
- for (i = 0; i < nmetrics; i++)
- metrics[i].bits = bitmaps;
-
- /* ink metrics ? */
-
- ink_metrics = NULL;
- if (pcfSeekToType(file, tables, ntables, PCF_INK_METRICS, &format, &size)) {
- format = pcfGetLSB32(file);
- if (!PCF_FORMAT_MATCH(format, PCF_DEFAULT_FORMAT) &&
- !PCF_FORMAT_MATCH(format, PCF_COMPRESSED_METRICS)) {
- goto Bail;
- }
- if (PCF_FORMAT_MATCH(format, PCF_DEFAULT_FORMAT))
- nink_metrics = pcfGetINT32(file, format);
- else
- nink_metrics = pcfGetINT16(file, format);
- if (nink_metrics != nmetrics)
- goto Bail;
- ink_metrics = (xCharInfo *) xalloc(nink_metrics * sizeof(xCharInfo));
- if (!ink_metrics)
- goto Bail;
- for (i = 0; i < nink_metrics; i++)
- if (PCF_FORMAT_MATCH(format, PCF_DEFAULT_FORMAT))
- pcfGetMetric(file, format, ink_metrics + i);
- else
- pcfGetCompressedMetric(file, format, ink_metrics + i);
- }
-
- /* encoding */
-
- if (!pcfSeekToType(file, tables, ntables, PCF_BDF_ENCODINGS, &format, &size))
- goto Bail;
- format = pcfGetLSB32(file);
- if (!PCF_FORMAT_MATCH(format, PCF_DEFAULT_FORMAT))
- goto Bail;
-
- pFont->info.firstCol = pcfGetINT16(file, format);
- pFont->info.lastCol = pcfGetINT16(file, format);
- pFont->info.firstRow = pcfGetINT16(file, format);
- pFont->info.lastRow = pcfGetINT16(file, format);
- pFont->info.defaultCh = pcfGetINT16(file, format);
-
- nencoding = (pFont->info.lastCol - pFont->info.firstCol + 1) *
- (pFont->info.lastRow - pFont->info.firstRow + 1);
-
- encoding = (CharInfoPtr *) xalloc(nencoding * sizeof(CharInfoPtr));
- if (!encoding)
- goto Bail;
-
- pFont->info.allExist = TRUE;
- for (i = 0; i < nencoding; i++) {
- encodingOffset = pcfGetINT16(file, format);
- if (encodingOffset == 0xFFFF) {
- pFont->info.allExist = FALSE;
- encoding[i] = 0;
- } else
- encoding[i] = metrics + encodingOffset;
- }
-
- /* BDF style accelerators (i.e. bounds based on encoded glyphs) */
-
- if (hasBDFAccelerators)
- if (!pcfGetAccel (&pFont->info, file, tables, ntables, PCF_BDF_ACCELERATORS))
- goto Bail;
-
- bitmapFont = (BitmapFontPtr) xalloc(sizeof *bitmapFont);
- if (!bitmapFont)
- goto Bail;
-
- bitmapFont->version_num = PCF_FILE_VERSION;
- bitmapFont->num_chars = nmetrics;
- bitmapFont->num_tables = ntables;
- bitmapFont->metrics = metrics;
- bitmapFont->ink_metrics = ink_metrics;
- bitmapFont->bitmaps = bitmaps;
- bitmapFont->encoding = encoding;
- bitmapFont->pDefault = (CharInfoPtr) 0;
- if (pFont->info.defaultCh != (unsigned short) NO_SUCH_CHAR) {
- unsigned int r,
- c,
- cols;
-
- r = pFont->info.defaultCh >> 8;
- c = pFont->info.defaultCh & 0xFF;
- if (pFont->info.firstRow <= r && r <= pFont->info.lastRow &&
- pFont->info.firstCol <= c && c <= pFont->info.lastCol) {
- cols = pFont->info.lastCol - pFont->info.firstCol + 1;
- r = r - pFont->info.firstRow;
- c = c - pFont->info.firstCol;
- bitmapFont->pDefault = encoding[r * cols + c];
- }
- }
- bitmapFont->bitmapExtra = (BitmapExtraPtr) 0;
- pFont->fontPrivate = (pointer) bitmapFont;
- pFont->get_glyphs = bitmapGetGlyphs;
- pFont->get_metrics = bitmapGetMetrics;
- pFont->unload_font = pcfUnloadFont;
- pFont->unload_glyphs = NULL;
- pFont->bit = bit;
- pFont->byte = byte;
- pFont->glyph = glyph;
- pFont->scan = scan;
- xfree(tables);
- return Successful;
-Bail:
- xfree(ink_metrics);
- xfree(encoding);
- xfree(metrics);
- xfree(pFont->info.props);
- xfree(bitmapFont);
- pFont->info.props = 0;
- xfree(tables);
- return AllocError;
-}
projects / rdpsrv / blobdiff