diff options
Diffstat (limited to 'libXfont/src/bitmap/snfread.c')
| -rw-r--r-- | libXfont/src/bitmap/snfread.c | 1016 |
1 files changed, 508 insertions, 508 deletions
diff --git a/libXfont/src/bitmap/snfread.c b/libXfont/src/bitmap/snfread.c index d003cc5a5..d0b0dfe3c 100644 --- a/libXfont/src/bitmap/snfread.c +++ b/libXfont/src/bitmap/snfread.c @@ -1,508 +1,508 @@ -/************************************************************************ -Copyright 1989 by Digital Equipment Corporation, Maynard, Massachusetts. - - All Rights Reserved - -Permission to use, copy, modify, and distribute this software and its -documentation for any purpose and without fee is hereby granted, -provided that the above copyright notice appear in all copies and that -both that copyright notice and this permission notice appear in -supporting documentation, and that the name of Digital not be -used in advertising or publicity pertaining to distribution of the -software without specific, written prior permission. - -DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING -ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL -DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR -ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS -SOFTWARE. - -************************************************************************/ - -/* - -Copyright 1994, 1998 The Open Group - -Permission to use, copy, modify, distribute, and sell this software and its -documentation for any purpose is hereby granted without fee, provided that -the above copyright notice appear in all copies and that both that -copyright notice and this permission notice appear in supporting -documentation. - -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 OPEN GROUP 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 Open Group 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 Open Group. - -*/ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#include <ctype.h> -#include <X11/fonts/fntfilst.h> -#include <X11/fonts/bitmap.h> -#include "snfstr.h" - -#include <stdarg.h> - -static void -snfError(const char* message, ...) -{ - va_list args; - - va_start(args, message); - - fprintf(stderr, "SNF Error: "); - vfprintf(stderr, message, args); - va_end(args); -} - -static void snfUnloadFont(FontPtr pFont); - -static int -snfReadCharInfo(FontFilePtr file, CharInfoPtr charInfo, char *base) -{ - snfCharInfoRec snfCharInfo; - -#define Width(m) ((m).rightSideBearing - (m).leftSideBearing) -#define Height(m) ((m).ascent + (m).descent) - - if (FontFileRead(file, (char *) &snfCharInfo, sizeof snfCharInfo) != - sizeof(snfCharInfo)) { - return BadFontName; - } - charInfo->metrics = snfCharInfo.metrics; - if (snfCharInfo.exists) - charInfo->bits = base + snfCharInfo.byteOffset; - else - charInfo->bits = 0; - return Successful; -} - -static int -snfReadxCharInfo(FontFilePtr file, xCharInfo *charInfo) -{ - snfCharInfoRec snfCharInfo; - - if (FontFileRead(file, (char *) &snfCharInfo, sizeof snfCharInfo) != - sizeof(snfCharInfo)) { - return BadFontName; - } - *charInfo = snfCharInfo.metrics; - return Successful; -} - -static void -snfCopyInfo(snfFontInfoPtr snfInfo, FontInfoPtr pFontInfo) -{ - pFontInfo->firstCol = snfInfo->firstCol; - pFontInfo->lastCol = snfInfo->lastCol; - pFontInfo->firstRow = snfInfo->firstRow; - pFontInfo->lastRow = snfInfo->lastRow; - pFontInfo->defaultCh = snfInfo->chDefault; - pFontInfo->noOverlap = snfInfo->noOverlap; - pFontInfo->terminalFont = snfInfo->terminalFont; - pFontInfo->constantMetrics = snfInfo->constantMetrics; - pFontInfo->constantWidth = snfInfo->constantWidth; - pFontInfo->inkInside = snfInfo->inkInside; - pFontInfo->inkMetrics = snfInfo->inkMetrics; - pFontInfo->allExist = snfInfo->allExist; - pFontInfo->drawDirection = snfInfo->drawDirection; - pFontInfo->anamorphic = FALSE; - pFontInfo->cachable = TRUE; - pFontInfo->maxOverlap = 0; - pFontInfo->minbounds = snfInfo->minbounds.metrics; - pFontInfo->maxbounds = snfInfo->maxbounds.metrics; - pFontInfo->fontAscent = snfInfo->fontAscent; - pFontInfo->fontDescent = snfInfo->fontDescent; - pFontInfo->nprops = snfInfo->nProps; -} - -static int -snfReadProps(snfFontInfoPtr snfInfo, FontInfoPtr pFontInfo, FontFilePtr file) -{ - char *strings; - FontPropPtr pfp; - snfFontPropPtr psnfp; - char *propspace; - int bytestoalloc; - int i; - - bytestoalloc = snfInfo->nProps * sizeof(snfFontPropRec) + - BYTESOFSTRINGINFO(snfInfo); - propspace = malloc(bytestoalloc); - if (!propspace) { - snfError("snfReadProps(): Couldn't allocate propspace (%d)\n", bytestoalloc); - return AllocError; - } - - if (FontFileRead(file, propspace, bytestoalloc) != bytestoalloc) { - free(propspace); - return BadFontName; - } - psnfp = (snfFontPropPtr) propspace; - - strings = propspace + BYTESOFPROPINFO(snfInfo); - - for (i = 0, pfp = pFontInfo->props; i < snfInfo->nProps; i++, pfp++, psnfp++) { - pfp->name = MakeAtom(&strings[psnfp->name], - (unsigned) strlen(&strings[psnfp->name]), 1); - pFontInfo->isStringProp[i] = psnfp->indirect; - if (psnfp->indirect) - pfp->value = (INT32) MakeAtom(&strings[psnfp->value], - (unsigned) strlen(&strings[psnfp->value]), 1); - else - pfp->value = psnfp->value; - } - - free(propspace); - return Successful; -} - -static int -snfReadHeader(snfFontInfoPtr snfInfo, FontFilePtr file) -{ - if (FontFileRead(file, (char *) snfInfo, sizeof *snfInfo) != sizeof *snfInfo) - return BadFontName; - - if (snfInfo->version1 != FONT_FILE_VERSION || - snfInfo->version2 != FONT_FILE_VERSION) - return BadFontName; - return Successful; -} - -static int snf_set; -static int snf_bit, snf_byte, snf_glyph, snf_scan; - -void -SnfSetFormat (int bit, int byte, int glyph, int scan) -{ - snf_bit = bit; - snf_byte = byte; - snf_glyph = glyph; - snf_scan = scan; - snf_set = 1; -} - -static void -SnfGetFormat (int *bit, int *byte, int *glyph, int *scan) -{ - if (!snf_set) - FontDefaultFormat (&snf_bit, &snf_byte, &snf_glyph, &snf_scan); - *bit = snf_bit; - *byte = snf_byte; - *glyph = snf_glyph; - *scan = snf_scan; -} - -int -snfReadFont(FontPtr pFont, FontFilePtr file, - int bit, int byte, int glyph, int scan) -{ - snfFontInfoRec fi; - unsigned bytestoalloc; - int i, j; - char *fontspace; - BitmapFontPtr bitmapFont; - int num_chars; - int bitmapsSize; - int ret; - int metrics_off; - int encoding_off; - int props_off; - int isStringProp_off; - int ink_off; - char *bitmaps; - int def_bit, def_byte, def_glyph, def_scan; - - ret = snfReadHeader(&fi, file); - if (ret != Successful) - return ret; - - SnfGetFormat (&def_bit, &def_byte, &def_glyph, &def_scan); - - /* - * we'll allocate one chunk of memory and split it among the various parts - * of the font: - * - * BitmapFontRec CharInfoRec's Glyphs Encoding DIX Properties Ink CharInfoRec's - * - * If the glyphpad is not the same as the font file, then the glyphs - * are allocated separately, to be later realloc'ed when we know - * how big to make them. - */ - - bitmapsSize = BYTESOFGLYPHINFO(&fi); - num_chars = n2dChars(&fi); - bytestoalloc = sizeof(BitmapFontRec); /* bitmapFont */ - metrics_off = bytestoalloc; - bytestoalloc += num_chars * sizeof(CharInfoRec); /* metrics */ - encoding_off = bytestoalloc; - bytestoalloc += NUM_SEGMENTS(num_chars) * sizeof(CharInfoPtr**); - /* encoding */ - props_off = bytestoalloc; - bytestoalloc += fi.nProps * sizeof(FontPropRec); /* props */ - isStringProp_off = bytestoalloc; - bytestoalloc += fi.nProps * sizeof(char); /* isStringProp */ - bytestoalloc = (bytestoalloc + 3) & ~3; - ink_off = bytestoalloc; - if (fi.inkMetrics) - bytestoalloc += num_chars * sizeof(xCharInfo); /* ink_metrics */ - - fontspace = malloc(bytestoalloc); - if (!fontspace) { - snfError("snfReadFont(): Couldn't allocate fontspace (%d)\n", bytestoalloc); - return AllocError; - } - bitmaps = malloc (bitmapsSize); - if (!bitmaps) - { - snfError("snfReadFont(): Couldn't allocate bitmaps (%d)\n", bitmapsSize); - free (fontspace); - return AllocError; - } - /* - * now fix up pointers - */ - - bitmapFont = (BitmapFontPtr) fontspace; - bitmapFont->num_chars = num_chars; - bitmapFont->metrics = (CharInfoPtr) (fontspace + metrics_off); - bitmapFont->encoding = (CharInfoPtr **) (fontspace + encoding_off); - bitmapFont->bitmaps = bitmaps; - bitmapFont->pDefault = NULL; - bitmapFont->bitmapExtra = NULL; - pFont->info.props = (FontPropPtr) (fontspace + props_off); - pFont->info.isStringProp = (char *) (fontspace + isStringProp_off); - if (fi.inkMetrics) - bitmapFont->ink_metrics = (xCharInfo *) (fontspace + ink_off); - else - bitmapFont->ink_metrics = 0; - - /* - * read the CharInfo - */ - - ret = Successful; - memset(bitmapFont->encoding, 0, - NUM_SEGMENTS(num_chars)*sizeof(CharInfoPtr*)); - for (i = 0; ret == Successful && i < num_chars; i++) { - ret = snfReadCharInfo(file, &bitmapFont->metrics[i], bitmaps); - if (bitmapFont->metrics[i].bits) { - if (!bitmapFont->encoding[SEGMENT_MAJOR(i)]) { - bitmapFont->encoding[SEGMENT_MAJOR(i)]= - calloc(BITMAP_FONT_SEGMENT_SIZE, sizeof(CharInfoPtr)); - if (!bitmapFont->encoding[SEGMENT_MAJOR(i)]) { - ret = AllocError; - break; - } - } - ACCESSENCODINGL(bitmapFont->encoding,i) = &bitmapFont->metrics[i]; - } - } - - if (ret != Successful) { - free(bitmaps); - if(bitmapFont->encoding) { - for(j=0; j<SEGMENT_MAJOR(i); j++) - free(bitmapFont->encoding[i]); - } - free(fontspace); - return ret; - } - /* - * read the glyphs - */ - - if (FontFileRead(file, bitmaps, bitmapsSize) != bitmapsSize) { - free(bitmaps); - free(fontspace); - return BadFontName; - } - - if (def_bit != bit) - BitOrderInvert((unsigned char *)bitmaps, bitmapsSize); - if ((def_byte == def_bit) != (bit == byte)) { - switch (bit == byte ? def_scan : scan) { - case 1: - break; - case 2: - TwoByteSwap((unsigned char *)bitmaps, bitmapsSize); - break; - case 4: - FourByteSwap((unsigned char *)bitmaps, bitmapsSize); - break; - } - } - if (def_glyph != glyph) { - char *padbitmaps; - int sizepadbitmaps; - int sizechar; - CharInfoPtr metric; - - sizepadbitmaps = 0; - metric = bitmapFont->metrics; - for (i = 0; i < num_chars; i++) - { - if (metric->bits) - sizepadbitmaps += BYTES_FOR_GLYPH(metric,glyph); - metric++; - } - padbitmaps = malloc(sizepadbitmaps); - if (!padbitmaps) { - snfError("snfReadFont(): Couldn't allocate padbitmaps (%d)\n", sizepadbitmaps); - free (bitmaps); - free (fontspace); - return AllocError; - } - metric = bitmapFont->metrics; - bitmapFont->bitmaps = padbitmaps; - for (i = 0; i < num_chars; i++) { - sizechar = RepadBitmap(metric->bits, padbitmaps, - def_glyph, glyph, - metric->metrics.rightSideBearing - - metric->metrics.leftSideBearing, - metric->metrics.ascent + metric->metrics.descent); - metric->bits = padbitmaps; - padbitmaps += sizechar; - metric++; - } - free(bitmaps); - } - - /* now read and atom'ize properties */ - - ret = snfReadProps(&fi, &pFont->info, file); - if (ret != Successful) { - free(fontspace); - return ret; - } - snfCopyInfo(&fi, &pFont->info); - - /* finally, read the ink metrics if the exist */ - - if (fi.inkMetrics) { - ret = Successful; - ret = snfReadxCharInfo(file, &pFont->info.ink_minbounds); - ret = snfReadxCharInfo(file, &pFont->info.ink_maxbounds); - for (i = 0; ret == Successful && i < num_chars; i++) - ret = snfReadxCharInfo(file, &bitmapFont->ink_metrics[i]); - if (ret != Successful) { - free(fontspace); - return ret; - } - } else { - pFont->info.ink_minbounds = pFont->info.minbounds; - pFont->info.ink_maxbounds = pFont->info.maxbounds; - } - - 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 = &bitmapFont->metrics[r * cols + c]; - } - } - bitmapFont->bitmapExtra = (BitmapExtraPtr) 0; - pFont->fontPrivate = (pointer) bitmapFont; - pFont->get_glyphs = bitmapGetGlyphs; - pFont->get_metrics = bitmapGetMetrics; - pFont->unload_font = snfUnloadFont; - pFont->unload_glyphs = NULL; - pFont->bit = bit; - pFont->byte = byte; - pFont->glyph = glyph; - pFont->scan = scan; - return Successful; -} - -int -snfReadFontInfo(FontInfoPtr pFontInfo, FontFilePtr file) -{ - int ret; - snfFontInfoRec fi; - int bytestoskip; - int num_chars; - - ret = snfReadHeader(&fi, file); - if (ret != Successful) - return ret; - snfCopyInfo(&fi, pFontInfo); - - pFontInfo->props = malloc(fi.nProps * sizeof(FontPropRec)); - if (!pFontInfo->props) { - snfError("snfReadFontInfo(): Couldn't allocate props (%d*%d)\n", fi.nProps, sizeof(FontPropRec)); - return AllocError; - } - pFontInfo->isStringProp = malloc(fi.nProps * sizeof(char)); - if (!pFontInfo->isStringProp) { - snfError("snfReadFontInfo(): Couldn't allocate isStringProp (%d*%d)\n", fi.nProps, sizeof(char)); - free(pFontInfo->props); - return AllocError; - } - num_chars = n2dChars(&fi); - bytestoskip = num_chars * sizeof(snfCharInfoRec); /* charinfos */ - bytestoskip += BYTESOFGLYPHINFO(&fi); - (void)FontFileSkip(file, bytestoskip); - - ret = snfReadProps(&fi, pFontInfo, file); - if (ret != Successful) { - free(pFontInfo->props); - free(pFontInfo->isStringProp); - return ret; - } - if (fi.inkMetrics) { - ret = snfReadxCharInfo(file, &pFontInfo->ink_minbounds); - if (ret != Successful) { - free(pFontInfo->props); - free(pFontInfo->isStringProp); - return ret; - } - ret = snfReadxCharInfo(file, &pFontInfo->ink_maxbounds); - if (ret != Successful) { - free(pFontInfo->props); - free(pFontInfo->isStringProp); - return ret; - } - } else { - pFontInfo->ink_minbounds = pFontInfo->minbounds; - pFontInfo->ink_maxbounds = pFontInfo->maxbounds; - } - return Successful; - -} - -static void -snfUnloadFont(FontPtr pFont) -{ - BitmapFontPtr bitmapFont; - - bitmapFont = (BitmapFontPtr) pFont->fontPrivate; - free (bitmapFont->bitmaps); - free (bitmapFont); - DestroyFontRec (pFont); -} - +/************************************************************************
+Copyright 1989 by Digital Equipment Corporation, Maynard, Massachusetts.
+
+ All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in
+supporting documentation, and that the name of Digital not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.
+
+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.
+
+************************************************************************/
+
+/*
+
+Copyright 1994, 1998 The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+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 OPEN GROUP 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 Open Group 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 Open Group.
+
+*/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <ctype.h>
+#include <X11/fonts/fntfilst.h>
+#include <X11/fonts/bitmap.h>
+#include "snfstr.h"
+
+#include <stdarg.h>
+
+static void
+snfError(const char* message, ...)
+{
+ va_list args;
+
+ va_start(args, message);
+
+ fprintf(stderr, "SNF Error: ");
+ vfprintf(stderr, message, args);
+ va_end(args);
+}
+
+static void snfUnloadFont(FontPtr pFont);
+
+static int
+snfReadCharInfo(FontFilePtr file, CharInfoPtr charInfo, char *base)
+{
+ snfCharInfoRec snfCharInfo;
+
+#define Width(m) ((m).rightSideBearing - (m).leftSideBearing)
+#define Height(m) ((m).ascent + (m).descent)
+
+ if (FontFileRead(file, (char *) &snfCharInfo, sizeof snfCharInfo) !=
+ sizeof(snfCharInfo)) {
+ return BadFontName;
+ }
+ charInfo->metrics = snfCharInfo.metrics;
+ if (snfCharInfo.exists)
+ charInfo->bits = base + snfCharInfo.byteOffset;
+ else
+ charInfo->bits = 0;
+ return Successful;
+}
+
+static int
+snfReadxCharInfo(FontFilePtr file, xCharInfo *charInfo)
+{
+ snfCharInfoRec snfCharInfo;
+
+ if (FontFileRead(file, (char *) &snfCharInfo, sizeof snfCharInfo) !=
+ sizeof(snfCharInfo)) {
+ return BadFontName;
+ }
+ *charInfo = snfCharInfo.metrics;
+ return Successful;
+}
+
+static void
+snfCopyInfo(snfFontInfoPtr snfInfo, FontInfoPtr pFontInfo)
+{
+ pFontInfo->firstCol = snfInfo->firstCol;
+ pFontInfo->lastCol = snfInfo->lastCol;
+ pFontInfo->firstRow = snfInfo->firstRow;
+ pFontInfo->lastRow = snfInfo->lastRow;
+ pFontInfo->defaultCh = snfInfo->chDefault;
+ pFontInfo->noOverlap = snfInfo->noOverlap;
+ pFontInfo->terminalFont = snfInfo->terminalFont;
+ pFontInfo->constantMetrics = snfInfo->constantMetrics;
+ pFontInfo->constantWidth = snfInfo->constantWidth;
+ pFontInfo->inkInside = snfInfo->inkInside;
+ pFontInfo->inkMetrics = snfInfo->inkMetrics;
+ pFontInfo->allExist = snfInfo->allExist;
+ pFontInfo->drawDirection = snfInfo->drawDirection;
+ pFontInfo->anamorphic = FALSE;
+ pFontInfo->cachable = TRUE;
+ pFontInfo->maxOverlap = 0;
+ pFontInfo->minbounds = snfInfo->minbounds.metrics;
+ pFontInfo->maxbounds = snfInfo->maxbounds.metrics;
+ pFontInfo->fontAscent = snfInfo->fontAscent;
+ pFontInfo->fontDescent = snfInfo->fontDescent;
+ pFontInfo->nprops = snfInfo->nProps;
+}
+
+static int
+snfReadProps(snfFontInfoPtr snfInfo, FontInfoPtr pFontInfo, FontFilePtr file)
+{
+ char *strings;
+ FontPropPtr pfp;
+ snfFontPropPtr psnfp;
+ char *propspace;
+ int bytestoalloc;
+ int i;
+
+ bytestoalloc = snfInfo->nProps * sizeof(snfFontPropRec) +
+ BYTESOFSTRINGINFO(snfInfo);
+ propspace = malloc(bytestoalloc);
+ if (!propspace) {
+ snfError("snfReadProps(): Couldn't allocate propspace (%d)\n", bytestoalloc);
+ return AllocError;
+ }
+
+ if (FontFileRead(file, propspace, bytestoalloc) != bytestoalloc) {
+ free(propspace);
+ return BadFontName;
+ }
+ psnfp = (snfFontPropPtr) propspace;
+
+ strings = propspace + BYTESOFPROPINFO(snfInfo);
+
+ for (i = 0, pfp = pFontInfo->props; i < snfInfo->nProps; i++, pfp++, psnfp++) {
+ pfp->name = MakeAtom(&strings[psnfp->name],
+ (unsigned) strlen(&strings[psnfp->name]), 1);
+ pFontInfo->isStringProp[i] = psnfp->indirect;
+ if (psnfp->indirect)
+ pfp->value = (INT32) MakeAtom(&strings[psnfp->value],
+ (unsigned) strlen(&strings[psnfp->value]), 1);
+ else
+ pfp->value = psnfp->value;
+ }
+
+ free(propspace);
+ return Successful;
+}
+
+static int
+snfReadHeader(snfFontInfoPtr snfInfo, FontFilePtr file)
+{
+ if (FontFileRead(file, (char *) snfInfo, sizeof *snfInfo) != sizeof *snfInfo)
+ return BadFontName;
+
+ if (snfInfo->version1 != FONT_FILE_VERSION ||
+ snfInfo->version2 != FONT_FILE_VERSION)
+ return BadFontName;
+ return Successful;
+}
+
+static int snf_set;
+static int snf_bit, snf_byte, snf_glyph, snf_scan;
+
+void
+SnfSetFormat (int bit, int byte, int glyph, int scan)
+{
+ snf_bit = bit;
+ snf_byte = byte;
+ snf_glyph = glyph;
+ snf_scan = scan;
+ snf_set = 1;
+}
+
+static void
+SnfGetFormat (int *bit, int *byte, int *glyph, int *scan)
+{
+ if (!snf_set)
+ FontDefaultFormat (&snf_bit, &snf_byte, &snf_glyph, &snf_scan);
+ *bit = snf_bit;
+ *byte = snf_byte;
+ *glyph = snf_glyph;
+ *scan = snf_scan;
+}
+
+int
+snfReadFont(FontPtr pFont, FontFilePtr file,
+ int bit, int byte, int glyph, int scan)
+{
+ snfFontInfoRec fi;
+ unsigned bytestoalloc;
+ int i, j;
+ char *fontspace;
+ BitmapFontPtr bitmapFont;
+ int num_chars;
+ int bitmapsSize;
+ int ret;
+ int metrics_off;
+ int encoding_off;
+ int props_off;
+ int isStringProp_off;
+ int ink_off;
+ char *bitmaps;
+ int def_bit, def_byte, def_glyph, def_scan;
+
+ ret = snfReadHeader(&fi, file);
+ if (ret != Successful)
+ return ret;
+
+ SnfGetFormat (&def_bit, &def_byte, &def_glyph, &def_scan);
+
+ /*
+ * we'll allocate one chunk of memory and split it among the various parts
+ * of the font:
+ *
+ * BitmapFontRec CharInfoRec's Glyphs Encoding DIX Properties Ink CharInfoRec's
+ *
+ * If the glyphpad is not the same as the font file, then the glyphs
+ * are allocated separately, to be later realloc'ed when we know
+ * how big to make them.
+ */
+
+ bitmapsSize = BYTESOFGLYPHINFO(&fi);
+ num_chars = n2dChars(&fi);
+ bytestoalloc = sizeof(BitmapFontRec); /* bitmapFont */
+ metrics_off = bytestoalloc;
+ bytestoalloc += num_chars * sizeof(CharInfoRec); /* metrics */
+ encoding_off = bytestoalloc;
+ bytestoalloc += NUM_SEGMENTS(num_chars) * sizeof(CharInfoPtr**);
+ /* encoding */
+ props_off = bytestoalloc;
+ bytestoalloc += fi.nProps * sizeof(FontPropRec); /* props */
+ isStringProp_off = bytestoalloc;
+ bytestoalloc += fi.nProps * sizeof(char); /* isStringProp */
+ bytestoalloc = (bytestoalloc + 3) & ~3;
+ ink_off = bytestoalloc;
+ if (fi.inkMetrics)
+ bytestoalloc += num_chars * sizeof(xCharInfo); /* ink_metrics */
+
+ fontspace = malloc(bytestoalloc);
+ if (!fontspace) {
+ snfError("snfReadFont(): Couldn't allocate fontspace (%d)\n", bytestoalloc);
+ return AllocError;
+ }
+ bitmaps = malloc (bitmapsSize);
+ if (!bitmaps)
+ {
+ snfError("snfReadFont(): Couldn't allocate bitmaps (%d)\n", bitmapsSize);
+ free (fontspace);
+ return AllocError;
+ }
+ /*
+ * now fix up pointers
+ */
+
+ bitmapFont = (BitmapFontPtr) fontspace;
+ bitmapFont->num_chars = num_chars;
+ bitmapFont->metrics = (CharInfoPtr) (fontspace + metrics_off);
+ bitmapFont->encoding = (CharInfoPtr **) (fontspace + encoding_off);
+ bitmapFont->bitmaps = bitmaps;
+ bitmapFont->pDefault = NULL;
+ bitmapFont->bitmapExtra = NULL;
+ pFont->info.props = (FontPropPtr) (fontspace + props_off);
+ pFont->info.isStringProp = (char *) (fontspace + isStringProp_off);
+ if (fi.inkMetrics)
+ bitmapFont->ink_metrics = (xCharInfo *) (fontspace + ink_off);
+ else
+ bitmapFont->ink_metrics = 0;
+
+ /*
+ * read the CharInfo
+ */
+
+ ret = Successful;
+ memset(bitmapFont->encoding, 0,
+ NUM_SEGMENTS(num_chars)*sizeof(CharInfoPtr*));
+ for (i = 0; ret == Successful && i < num_chars; i++) {
+ ret = snfReadCharInfo(file, &bitmapFont->metrics[i], bitmaps);
+ if (bitmapFont->metrics[i].bits) {
+ if (!bitmapFont->encoding[SEGMENT_MAJOR(i)]) {
+ bitmapFont->encoding[SEGMENT_MAJOR(i)]=
+ calloc(BITMAP_FONT_SEGMENT_SIZE, sizeof(CharInfoPtr));
+ if (!bitmapFont->encoding[SEGMENT_MAJOR(i)]) {
+ ret = AllocError;
+ break;
+ }
+ }
+ ACCESSENCODINGL(bitmapFont->encoding,i) = &bitmapFont->metrics[i];
+ }
+ }
+
+ if (ret != Successful) {
+ free(bitmaps);
+ if(bitmapFont->encoding) {
+ for(j=0; j<SEGMENT_MAJOR(i); j++)
+ free(bitmapFont->encoding[i]);
+ }
+ free(fontspace);
+ return ret;
+ }
+ /*
+ * read the glyphs
+ */
+
+ if (FontFileRead(file, bitmaps, bitmapsSize) != bitmapsSize) {
+ free(bitmaps);
+ free(fontspace);
+ return BadFontName;
+ }
+
+ if (def_bit != bit)
+ BitOrderInvert((unsigned char *)bitmaps, bitmapsSize);
+ if ((def_byte == def_bit) != (bit == byte)) {
+ switch (bit == byte ? def_scan : scan) {
+ case 1:
+ break;
+ case 2:
+ TwoByteSwap((unsigned char *)bitmaps, bitmapsSize);
+ break;
+ case 4:
+ FourByteSwap((unsigned char *)bitmaps, bitmapsSize);
+ break;
+ }
+ }
+ if (def_glyph != glyph) {
+ char *padbitmaps;
+ int sizepadbitmaps;
+ int sizechar;
+ CharInfoPtr metric;
+
+ sizepadbitmaps = 0;
+ metric = bitmapFont->metrics;
+ for (i = 0; i < num_chars; i++)
+ {
+ if (metric->bits)
+ sizepadbitmaps += BYTES_FOR_GLYPH(metric,glyph);
+ metric++;
+ }
+ padbitmaps = malloc(sizepadbitmaps);
+ if (!padbitmaps) {
+ snfError("snfReadFont(): Couldn't allocate padbitmaps (%d)\n", sizepadbitmaps);
+ free (bitmaps);
+ free (fontspace);
+ return AllocError;
+ }
+ metric = bitmapFont->metrics;
+ bitmapFont->bitmaps = padbitmaps;
+ for (i = 0; i < num_chars; i++) {
+ sizechar = RepadBitmap(metric->bits, padbitmaps,
+ def_glyph, glyph,
+ metric->metrics.rightSideBearing -
+ metric->metrics.leftSideBearing,
+ metric->metrics.ascent + metric->metrics.descent);
+ metric->bits = padbitmaps;
+ padbitmaps += sizechar;
+ metric++;
+ }
+ free(bitmaps);
+ }
+
+ /* now read and atom'ize properties */
+
+ ret = snfReadProps(&fi, &pFont->info, file);
+ if (ret != Successful) {
+ free(fontspace);
+ return ret;
+ }
+ snfCopyInfo(&fi, &pFont->info);
+
+ /* finally, read the ink metrics if the exist */
+
+ if (fi.inkMetrics) {
+ ret = Successful;
+ ret = snfReadxCharInfo(file, &pFont->info.ink_minbounds);
+ ret = snfReadxCharInfo(file, &pFont->info.ink_maxbounds);
+ for (i = 0; ret == Successful && i < num_chars; i++)
+ ret = snfReadxCharInfo(file, &bitmapFont->ink_metrics[i]);
+ if (ret != Successful) {
+ free(fontspace);
+ return ret;
+ }
+ } else {
+ pFont->info.ink_minbounds = pFont->info.minbounds;
+ pFont->info.ink_maxbounds = pFont->info.maxbounds;
+ }
+
+ 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 = &bitmapFont->metrics[r * cols + c];
+ }
+ }
+ bitmapFont->bitmapExtra = (BitmapExtraPtr) 0;
+ pFont->fontPrivate = (pointer) bitmapFont;
+ pFont->get_glyphs = bitmapGetGlyphs;
+ pFont->get_metrics = bitmapGetMetrics;
+ pFont->unload_font = snfUnloadFont;
+ pFont->unload_glyphs = NULL;
+ pFont->bit = bit;
+ pFont->byte = byte;
+ pFont->glyph = glyph;
+ pFont->scan = scan;
+ return Successful;
+}
+
+int
+snfReadFontInfo(FontInfoPtr pFontInfo, FontFilePtr file)
+{
+ int ret;
+ snfFontInfoRec fi;
+ int bytestoskip;
+ int num_chars;
+
+ ret = snfReadHeader(&fi, file);
+ if (ret != Successful)
+ return ret;
+ snfCopyInfo(&fi, pFontInfo);
+
+ pFontInfo->props = malloc(fi.nProps * sizeof(FontPropRec));
+ if (!pFontInfo->props) {
+ snfError("snfReadFontInfo(): Couldn't allocate props (%d*%d)\n", fi.nProps, sizeof(FontPropRec));
+ return AllocError;
+ }
+ pFontInfo->isStringProp = malloc(fi.nProps * sizeof(char));
+ if (!pFontInfo->isStringProp) {
+ snfError("snfReadFontInfo(): Couldn't allocate isStringProp (%d*%d)\n", fi.nProps, sizeof(char));
+ free(pFontInfo->props);
+ return AllocError;
+ }
+ num_chars = n2dChars(&fi);
+ bytestoskip = num_chars * sizeof(snfCharInfoRec); /* charinfos */
+ bytestoskip += BYTESOFGLYPHINFO(&fi);
+ (void)FontFileSkip(file, bytestoskip);
+
+ ret = snfReadProps(&fi, pFontInfo, file);
+ if (ret != Successful) {
+ free(pFontInfo->props);
+ free(pFontInfo->isStringProp);
+ return ret;
+ }
+ if (fi.inkMetrics) {
+ ret = snfReadxCharInfo(file, &pFontInfo->ink_minbounds);
+ if (ret != Successful) {
+ free(pFontInfo->props);
+ free(pFontInfo->isStringProp);
+ return ret;
+ }
+ ret = snfReadxCharInfo(file, &pFontInfo->ink_maxbounds);
+ if (ret != Successful) {
+ free(pFontInfo->props);
+ free(pFontInfo->isStringProp);
+ return ret;
+ }
+ } else {
+ pFontInfo->ink_minbounds = pFontInfo->minbounds;
+ pFontInfo->ink_maxbounds = pFontInfo->maxbounds;
+ }
+ return Successful;
+
+}
+
+static void
+snfUnloadFont(FontPtr pFont)
+{
+ BitmapFontPtr bitmapFont;
+
+ bitmapFont = (BitmapFontPtr) pFont->fontPrivate;
+ free (bitmapFont->bitmaps);
+ free (bitmapFont);
+ DestroyFontRec (pFont);
+}
+
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