diff options
author | marha <marha@users.sourceforge.net> | 2011-09-12 11:27:51 +0200 |
---|---|---|
committer | marha <marha@users.sourceforge.net> | 2011-09-12 11:27:51 +0200 |
commit | dafebc5bb70303f0b5baf0b087cf4d9a64b5c7f0 (patch) | |
tree | bdf833cc6a4fc9035411779e10dd9e8478201885 /libXfont/src/bitmap | |
parent | 0b40f5f4b54453a77f4b09c431f8efc6875da61f (diff) | |
download | vcxsrv-dafebc5bb70303f0b5baf0b087cf4d9a64b5c7f0.tar.gz vcxsrv-dafebc5bb70303f0b5baf0b087cf4d9a64b5c7f0.tar.bz2 vcxsrv-dafebc5bb70303f0b5baf0b087cf4d9a64b5c7f0.zip |
Synchronised line endinge with release branch
Diffstat (limited to 'libXfont/src/bitmap')
-rw-r--r-- | libXfont/src/bitmap/bdfread.c | 1910 | ||||
-rw-r--r-- | libXfont/src/bitmap/bdfutils.c | 672 | ||||
-rw-r--r-- | libXfont/src/bitmap/bitmap.c | 314 | ||||
-rw-r--r-- | libXfont/src/bitmap/bitmapfunc.c | 512 | ||||
-rw-r--r-- | libXfont/src/bitmap/bitmaputil.c | 450 | ||||
-rw-r--r-- | libXfont/src/bitmap/bitscale.c | 3384 | ||||
-rw-r--r-- | libXfont/src/bitmap/fontink.c | 432 | ||||
-rw-r--r-- | libXfont/src/bitmap/pcfread.c | 1560 | ||||
-rw-r--r-- | libXfont/src/bitmap/pcfwrite.c | 932 | ||||
-rw-r--r-- | libXfont/src/bitmap/snfread.c | 1016 | ||||
-rw-r--r-- | libXfont/src/bitmap/snfstr.h | 364 |
11 files changed, 5773 insertions, 5773 deletions
diff --git a/libXfont/src/bitmap/bdfread.c b/libXfont/src/bitmap/bdfread.c index 1ae3b85cd..2464c03cc 100644 --- a/libXfont/src/bitmap/bdfread.c +++ b/libXfont/src/bitmap/bdfread.c @@ -1,955 +1,955 @@ -/************************************************************************
-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/fontutil.h>
-/* use bitmap structure */
-#include <X11/fonts/bitmap.h>
-#include <X11/fonts/bdfint.h>
-
-#if HAVE_STDINT_H
-#include <stdint.h>
-#elif !defined(INT32_MAX)
-#define INT32_MAX 0x7fffffff
-#endif
-
-#define INDICES 256
-#define MAXENCODING 0xFFFF
-#define BDFLINELEN 1024
-
-static Bool bdfPadToTerminal(FontPtr pFont);
-extern int bdfFileLineNum;
-
-/***====================================================================***/
-
-static Bool
-bdfReadBitmap(CharInfoPtr pCI, FontFilePtr file, int bit, int byte,
- int glyph, int scan, CARD32 *sizes)
-{
- int widthBits,
- widthBytes,
- widthHexChars;
- int height,
- row;
- int i,
- inLineLen,
- nextByte;
- unsigned char *pInBits,
- *picture,
- *line = NULL;
- unsigned char lineBuf[BDFLINELEN];
-
- widthBits = GLYPHWIDTHPIXELS(pCI);
- height = GLYPHHEIGHTPIXELS(pCI);
-
- widthBytes = BYTES_PER_ROW(widthBits, glyph);
- if (widthBytes * height > 0) {
- picture = malloc(widthBytes * height);
- if (!picture) {
- bdfError("Couldn't allocate picture (%d*%d)\n", widthBytes, height);
- goto BAILOUT;
- }
- } else
- picture = NULL;
- pCI->bits = (char *) picture;
-
- if (sizes) {
- for (i = 0; i < GLYPHPADOPTIONS; i++)
- sizes[i] += BYTES_PER_ROW(widthBits, (1 << i)) * height;
- }
- nextByte = 0;
- widthHexChars = BYTES_PER_ROW(widthBits, 1);
-
-/* 5/31/89 (ef) -- hack, hack, hack. what *am* I supposed to do with */
-/* 0 width characters? */
-
- for (row = 0; row < height; row++) {
- line = bdfGetLine(file, lineBuf, BDFLINELEN);
- if (!line)
- break;
-
- if (widthBits == 0) {
- if ((!line) || (bdfIsPrefix(line, "ENDCHAR")))
- break;
- else
- continue;
- }
- pInBits = line;
- inLineLen = strlen((char *) pInBits);
-
- if (inLineLen & 1) {
- bdfError("odd number of characters in hex encoding\n");
- line[inLineLen++] = '0';
- line[inLineLen] = '\0';
- }
- inLineLen >>= 1;
- i = inLineLen;
- if (i > widthHexChars)
- i = widthHexChars;
- for (; i > 0; i--, pInBits += 2)
- picture[nextByte++] = bdfHexByte(pInBits);
-
- /* pad if line is too short */
- if (inLineLen < widthHexChars) {
- for (i = widthHexChars - inLineLen; i > 0; i--)
- picture[nextByte++] = 0;
- } else {
- unsigned char mask;
-
- mask = 0xff << (8 - (widthBits & 0x7));
- if (mask && picture[nextByte - 1] & ~mask) {
- picture[nextByte - 1] &= mask;
- }
- }
-
- if (widthBytes > widthHexChars) {
- i = widthBytes - widthHexChars;
- while (i-- > 0)
- picture[nextByte++] = 0;
- }
- }
-
- if ((line && (!bdfIsPrefix(line, "ENDCHAR"))) || (height == 0))
- line = bdfGetLine(file, lineBuf, BDFLINELEN);
-
- if ((!line) || (!bdfIsPrefix(line, "ENDCHAR"))) {
- bdfError("missing 'ENDCHAR'\n");
- goto BAILOUT;
- }
- if (nextByte != height * widthBytes) {
- bdfError("bytes != rows * bytes_per_row (%d != %d * %d)\n",
- nextByte, height, widthBytes);
- goto BAILOUT;
- }
- if (picture != NULL) {
- if (bit == LSBFirst)
- BitOrderInvert(picture, nextByte);
- if (bit != byte) {
- if (scan == 2)
- TwoByteSwap(picture, nextByte);
- else if (scan == 4)
- FourByteSwap(picture, nextByte);
- }
- }
- return (TRUE);
-BAILOUT:
- if (picture)
- free(picture);
- pCI->bits = NULL;
- return (FALSE);
-}
-
-/***====================================================================***/
-
-static Bool
-bdfSkipBitmap(FontFilePtr file, int height)
-{
- unsigned char *line;
- int i = 0;
- unsigned char lineBuf[BDFLINELEN];
-
- do {
- line = bdfGetLine(file, lineBuf, BDFLINELEN);
- i++;
- } while (line && !bdfIsPrefix(line, "ENDCHAR") && i <= height);
-
- if (i > 1 && line && !bdfIsPrefix(line, "ENDCHAR")) {
- bdfError("Error in bitmap, missing 'ENDCHAR'\n");
- return (FALSE);
- }
- return (TRUE);
-}
-
-/***====================================================================***/
-
-static void
-bdfFreeFontBits(FontPtr pFont)
-{
- BitmapFontPtr bitmapFont;
- BitmapExtraPtr bitmapExtra;
- int i, nencoding;
-
- bitmapFont = (BitmapFontPtr) pFont->fontPrivate;
- bitmapExtra = (BitmapExtraPtr) bitmapFont->bitmapExtra;
- free(bitmapFont->ink_metrics);
- if(bitmapFont->encoding) {
- nencoding = (pFont->info.lastCol - pFont->info.firstCol + 1) *
- (pFont->info.lastRow - pFont->info.firstRow + 1);
- for(i=0; i<NUM_SEGMENTS(nencoding); i++)
- free(bitmapFont->encoding[i]);
- }
- free(bitmapFont->encoding);
- for (i = 0; i < bitmapFont->num_chars; i++)
- free(bitmapFont->metrics[i].bits);
- free(bitmapFont->metrics);
- if (bitmapExtra)
- {
- free (bitmapExtra->glyphNames);
- free (bitmapExtra->sWidths);
- free (bitmapExtra);
- }
- free(pFont->info.props);
- free(bitmapFont);
-}
-
-
-static Bool
-bdfReadCharacters(FontFilePtr file, FontPtr pFont, bdfFileState *pState,
- int bit, int byte, int glyph, int scan)
-{
- unsigned char *line;
- register CharInfoPtr ci;
- int i,
- ndx,
- nchars,
- nignored;
- unsigned int char_row, char_col;
- int numEncodedGlyphs = 0;
- CharInfoPtr *bdfEncoding[256];
- BitmapFontPtr bitmapFont;
- BitmapExtraPtr bitmapExtra;
- CARD32 *bitmapsSizes;
- unsigned char lineBuf[BDFLINELEN];
- int nencoding;
-
- bitmapFont = (BitmapFontPtr) pFont->fontPrivate;
- bitmapExtra = (BitmapExtraPtr) bitmapFont->bitmapExtra;
-
- if (bitmapExtra) {
- bitmapsSizes = bitmapExtra->bitmapsSizes;
- for (i = 0; i < GLYPHPADOPTIONS; i++)
- bitmapsSizes[i] = 0;
- } else
- bitmapsSizes = NULL;
-
- bzero(bdfEncoding, sizeof(bdfEncoding));
- bitmapFont->metrics = NULL;
- ndx = 0;
-
- line = bdfGetLine(file, lineBuf, BDFLINELEN);
-
- if ((!line) || (sscanf((char *) line, "CHARS %d", &nchars) != 1)) {
- bdfError("bad 'CHARS' in bdf file\n");
- return (FALSE);
- }
- if (nchars < 1) {
- bdfError("invalid number of CHARS in BDF file\n");
- return (FALSE);
- }
- if (nchars > INT32_MAX / sizeof(CharInfoRec)) {
- bdfError("Couldn't allocate pCI (%d*%d)\n", nchars,
- sizeof(CharInfoRec));
- goto BAILOUT;
- }
- ci = calloc(nchars, sizeof(CharInfoRec));
- if (!ci) {
- bdfError("Couldn't allocate pCI (%d*%d)\n", nchars,
- sizeof(CharInfoRec));
- goto BAILOUT;
- }
- bitmapFont->metrics = ci;
-
- if (bitmapExtra) {
- bitmapExtra->glyphNames = malloc(nchars * sizeof(Atom));
- if (!bitmapExtra->glyphNames) {
- bdfError("Couldn't allocate glyphNames (%d*%d)\n",
- nchars, sizeof(Atom));
- goto BAILOUT;
- }
- }
- if (bitmapExtra) {
- bitmapExtra->sWidths = malloc(nchars * sizeof(int));
- if (!bitmapExtra->sWidths) {
- bdfError("Couldn't allocate sWidth (%d *%d)\n",
- nchars, sizeof(int));
- return FALSE;
- }
- }
- line = bdfGetLine(file, lineBuf, BDFLINELEN);
- pFont->info.firstRow = 256;
- pFont->info.lastRow = 0;
- pFont->info.firstCol = 256;
- pFont->info.lastCol = 0;
- nignored = 0;
- for (ndx = 0; (ndx < nchars) && (line) && (bdfIsPrefix(line, "STARTCHAR"));) {
- int t;
- int wx; /* x component of width */
- int wy; /* y component of width */
- int bw; /* bounding-box width */
- int bh; /* bounding-box height */
- int bl; /* bounding-box left */
- int bb; /* bounding-box bottom */
- int enc,
- enc2; /* encoding */
- unsigned char *p; /* temp pointer into line */
- char charName[100];
- int ignore;
-
- if (sscanf((char *) line, "STARTCHAR %s", charName) != 1) {
- bdfError("bad character name in BDF file\n");
- goto BAILOUT; /* bottom of function, free and return error */
- }
- if (bitmapExtra)
- bitmapExtra->glyphNames[ndx] = bdfForceMakeAtom(charName, NULL);
-
- line = bdfGetLine(file, lineBuf, BDFLINELEN);
- if (!line || (t = sscanf((char *) line, "ENCODING %d %d", &enc, &enc2)) < 1) {
- bdfError("bad 'ENCODING' in BDF file\n");
- goto BAILOUT;
- }
- if (enc < -1 || (t == 2 && enc2 < -1)) {
- bdfError("bad ENCODING value");
- goto BAILOUT;
- }
- if (t == 2 && enc == -1)
- enc = enc2;
- ignore = 0;
- if (enc == -1) {
- if (!bitmapExtra) {
- nignored++;
- ignore = 1;
- }
- } else if (enc > MAXENCODING) {
- bdfError("char '%s' has encoding too large (%d)\n",
- charName, enc);
- } else {
- char_row = (enc >> 8) & 0xFF;
- char_col = enc & 0xFF;
- if (char_row < pFont->info.firstRow)
- pFont->info.firstRow = char_row;
- if (char_row > pFont->info.lastRow)
- pFont->info.lastRow = char_row;
- if (char_col < pFont->info.firstCol)
- pFont->info.firstCol = char_col;
- if (char_col > pFont->info.lastCol)
- pFont->info.lastCol = char_col;
- if (bdfEncoding[char_row] == (CharInfoPtr *) NULL) {
- bdfEncoding[char_row] = malloc(256 * sizeof(CharInfoPtr));
- if (!bdfEncoding[char_row]) {
- bdfError("Couldn't allocate row %d of encoding (%d*%d)\n",
- char_row, INDICES, sizeof(CharInfoPtr));
- goto BAILOUT;
- }
- for (i = 0; i < 256; i++)
- bdfEncoding[char_row][i] = (CharInfoPtr) NULL;
- }
- if (bdfEncoding[char_row] != NULL) {
- bdfEncoding[char_row][char_col] = ci;
- numEncodedGlyphs++;
- }
- }
-
- line = bdfGetLine(file, lineBuf, BDFLINELEN);
- if ((!line) || (sscanf((char *) line, "SWIDTH %d %d", &wx, &wy) != 2)) {
- bdfError("bad 'SWIDTH'\n");
- goto BAILOUT;
- }
- if (wy != 0) {
- bdfError("SWIDTH y value must be zero\n");
- goto BAILOUT;
- }
- if (bitmapExtra)
- bitmapExtra->sWidths[ndx] = wx;
-
-/* 5/31/89 (ef) -- we should be able to ditch the character and recover */
-/* from all of these. */
-
- line = bdfGetLine(file, lineBuf, BDFLINELEN);
- if ((!line) || (sscanf((char *) line, "DWIDTH %d %d", &wx, &wy) != 2)) {
- bdfError("bad 'DWIDTH'\n");
- goto BAILOUT;
- }
- if (wy != 0) {
- bdfError("DWIDTH y value must be zero\n");
- goto BAILOUT;
- }
- line = bdfGetLine(file, lineBuf, BDFLINELEN);
- if ((!line) || (sscanf((char *) line, "BBX %d %d %d %d", &bw, &bh, &bl, &bb) != 4)) {
- bdfError("bad 'BBX'\n");
- goto BAILOUT;
- }
- if ((bh < 0) || (bw < 0)) {
- bdfError("character '%s' has a negative sized bitmap, %dx%d\n",
- charName, bw, bh);
- goto BAILOUT;
- }
- line = bdfGetLine(file, lineBuf, BDFLINELEN);
- if ((line) && (bdfIsPrefix(line, "ATTRIBUTES"))) {
- for (p = line + strlen("ATTRIBUTES ");
- (*p == ' ') || (*p == '\t');
- p++)
- /* empty for loop */ ;
- ci->metrics.attributes = (bdfHexByte(p) << 8) + bdfHexByte(p + 2);
- line = bdfGetLine(file, lineBuf, BDFLINELEN);
- } else
- ci->metrics.attributes = 0;
-
- if (!line || !bdfIsPrefix(line, "BITMAP")) {
- bdfError("missing 'BITMAP'\n");
- goto BAILOUT;
- }
- /* collect data for generated properties */
- if ((strlen(charName) == 1)) {
- if ((charName[0] >= '0') && (charName[0] <= '9')) {
- pState->digitWidths += wx;
- pState->digitCount++;
- } else if (charName[0] == 'x') {
- pState->exHeight = (bh + bb) <= 0 ? bh : bh + bb;
- }
- }
- if (!ignore) {
- ci->metrics.leftSideBearing = bl;
- ci->metrics.rightSideBearing = bl + bw;
- ci->metrics.ascent = bh + bb;
- ci->metrics.descent = -bb;
- ci->metrics.characterWidth = wx;
- ci->bits = NULL;
- bdfReadBitmap(ci, file, bit, byte, glyph, scan, bitmapsSizes);
- ci++;
- ndx++;
- } else
- bdfSkipBitmap(file, bh);
-
- line = bdfGetLine(file, lineBuf, BDFLINELEN); /* get STARTCHAR or
- * ENDFONT */
- }
-
- if (ndx + nignored != nchars) {
- bdfError("%d too few characters\n", nchars - (ndx + nignored));
- goto BAILOUT;
- }
- nchars = ndx;
- bitmapFont->num_chars = nchars;
- if ((line) && (bdfIsPrefix(line, "STARTCHAR"))) {
- bdfError("more characters than specified\n");
- goto BAILOUT;
- }
- if ((!line) || (!bdfIsPrefix(line, "ENDFONT"))) {
- bdfError("missing 'ENDFONT'\n");
- goto BAILOUT;
- }
- if (numEncodedGlyphs == 0)
- bdfWarning("No characters with valid encodings\n");
-
- nencoding = (pFont->info.lastRow - pFont->info.firstRow + 1) *
- (pFont->info.lastCol - pFont->info.firstCol + 1);
- bitmapFont->encoding = calloc(NUM_SEGMENTS(nencoding),sizeof(CharInfoPtr*));
- if (!bitmapFont->encoding) {
- bdfError("Couldn't allocate ppCI (%d,%d)\n",
- NUM_SEGMENTS(nencoding),
- sizeof(CharInfoPtr*));
- goto BAILOUT;
- }
- pFont->info.allExist = TRUE;
- i = 0;
- for (char_row = pFont->info.firstRow;
- char_row <= pFont->info.lastRow;
- char_row++) {
- if (bdfEncoding[char_row] == (CharInfoPtr *) NULL) {
- pFont->info.allExist = FALSE;
- i += pFont->info.lastCol - pFont->info.firstCol + 1;
- } else {
- for (char_col = pFont->info.firstCol;
- char_col <= pFont->info.lastCol;
- char_col++) {
- if (!bdfEncoding[char_row][char_col])
- pFont->info.allExist = FALSE;
- else {
- if (!bitmapFont->encoding[SEGMENT_MAJOR(i)]) {
- bitmapFont->encoding[SEGMENT_MAJOR(i)]=
- calloc(BITMAP_FONT_SEGMENT_SIZE,
- sizeof(CharInfoPtr));
- if (!bitmapFont->encoding[SEGMENT_MAJOR(i)])
- goto BAILOUT;
- }
- ACCESSENCODINGL(bitmapFont->encoding,i) =
- bdfEncoding[char_row][char_col];
- }
- i++;
- }
- }
- }
- for (i = 0; i < 256; i++)
- if (bdfEncoding[i])
- free(bdfEncoding[i]);
- return (TRUE);
-BAILOUT:
- for (i = 0; i < 256; i++)
- if (bdfEncoding[i])
- free(bdfEncoding[i]);
- /* bdfFreeFontBits will clean up the rest */
- return (FALSE);
-}
-
-/***====================================================================***/
-
-static Bool
-bdfReadHeader(FontFilePtr file, bdfFileState *pState)
-{
- unsigned char *line;
- char namebuf[BDFLINELEN];
- unsigned char lineBuf[BDFLINELEN];
-
- line = bdfGetLine(file, lineBuf, BDFLINELEN);
- if (!line || sscanf((char *) line, "STARTFONT %s", namebuf) != 1 ||
- !bdfStrEqual(namebuf, "2.1")) {
- bdfError("bad 'STARTFONT'\n");
- return (FALSE);
- }
- line = bdfGetLine(file, lineBuf, BDFLINELEN);
- if (!line || sscanf((char *) line, "FONT %[^\n]", pState->fontName) != 1) {
- bdfError("bad 'FONT'\n");
- return (FALSE);
- }
- line = bdfGetLine(file, lineBuf, BDFLINELEN);
- if (!line || !bdfIsPrefix(line, "SIZE")) {
- bdfError("missing 'SIZE'\n");
- return (FALSE);
- }
- if (sscanf((char *) line, "SIZE %f%d%d", &pState->pointSize,
- &pState->resolution_x, &pState->resolution_y) != 3) {
- bdfError("bad 'SIZE'\n");
- return (FALSE);
- }
- if (pState->pointSize < 1 ||
- pState->resolution_x < 1 || pState->resolution_y < 1) {
- bdfError("SIZE values must be > 0\n");
- return (FALSE);
- }
- line = bdfGetLine(file, lineBuf, BDFLINELEN);
- if (!line || !bdfIsPrefix(line, "FONTBOUNDINGBOX")) {
- bdfError("missing 'FONTBOUNDINGBOX'\n");
- return (FALSE);
- }
- return (TRUE);
-}
-
-/***====================================================================***/
-
-static Bool
-bdfReadProperties(FontFilePtr file, FontPtr pFont, bdfFileState *pState)
-{
- int nProps, props_left,
- nextProp;
- char *stringProps;
- FontPropPtr props;
- char namebuf[BDFLINELEN],
- secondbuf[BDFLINELEN],
- thirdbuf[BDFLINELEN];
- unsigned char *line;
- unsigned char lineBuf[BDFLINELEN];
- BitmapFontPtr bitmapFont = (BitmapFontPtr) pFont->fontPrivate;
-
- line = bdfGetLine(file, lineBuf, BDFLINELEN);
- if (!line || !bdfIsPrefix(line, "STARTPROPERTIES")) {
- bdfError("missing 'STARTPROPERTIES'\n");
- return (FALSE);
- }
- if (sscanf((char *) line, "STARTPROPERTIES %d", &nProps) != 1) {
- bdfError("bad 'STARTPROPERTIES'\n");
- return (FALSE);
- }
- pFont->info.isStringProp = NULL;
- pFont->info.props = NULL;
- pFont->info.nprops = 0;
-
- stringProps = malloc((nProps + BDF_GENPROPS) * sizeof(char));
- pFont->info.isStringProp = stringProps;
- if (stringProps == NULL) {
- bdfError("Couldn't allocate stringProps (%d*%d)\n",
- (nProps + BDF_GENPROPS), sizeof(Bool));
- goto BAILOUT;
- }
- pFont->info.props = props = calloc(nProps + BDF_GENPROPS,
- sizeof(FontPropRec));
- if (props == NULL) {
- bdfError("Couldn't allocate props (%d*%d)\n", nProps + BDF_GENPROPS,
- sizeof(FontPropRec));
- goto BAILOUT;
- }
-
- nextProp = 0;
- props_left = nProps;
- while (props_left-- > 0) {
- line = bdfGetLine(file, lineBuf, BDFLINELEN);
- if (line == NULL || bdfIsPrefix(line, "ENDPROPERTIES")) {
- bdfError("\"STARTPROPERTIES %d\" followed by only %d properties\n",
- nProps, nProps - props_left - 1);
- goto BAILOUT;
- }
- while (*line && isspace(*line))
- line++;
-
- switch (sscanf((char *) line, "%s%s%s", namebuf, secondbuf, thirdbuf)) {
- default:
- bdfError("missing '%s' parameter value\n", namebuf);
- goto BAILOUT;
-
- case 2:
- /*
- * Possibilites include: valid quoted string with no white space
- * valid integer value invalid value
- */
- if (secondbuf[0] == '"') {
- stringProps[nextProp] = TRUE;
- props[nextProp].value =
- bdfGetPropertyValue((char *)line + strlen(namebuf) + 1);
- if (!props[nextProp].value)
- goto BAILOUT;
- break;
- } else if (bdfIsInteger(secondbuf)) {
- stringProps[nextProp] = FALSE;
- props[nextProp].value = atoi(secondbuf);
- break;
- } else {
- bdfError("invalid '%s' parameter value\n", namebuf);
- goto BAILOUT;
- }
-
- case 3:
- /*
- * Possibilites include: valid quoted string with some white space
- * invalid value (reject even if second string is integer)
- */
- if (secondbuf[0] == '"') {
- stringProps[nextProp] = TRUE;
- props[nextProp].value =
- bdfGetPropertyValue((char *)line + strlen(namebuf) + 1);
- if (!props[nextProp].value)
- goto BAILOUT;
- break;
- } else {
- bdfError("invalid '%s' parameter value\n", namebuf);
- goto BAILOUT;
- }
- }
- props[nextProp].name = bdfForceMakeAtom(namebuf, NULL);
- if (props[nextProp].name == None) {
- bdfError("Empty property name.\n");
- goto BAILOUT;
- }
- if (!bdfSpecialProperty(pFont, &props[nextProp],
- stringProps[nextProp], pState))
- nextProp++;
- }
-
- line = bdfGetLine(file, lineBuf, BDFLINELEN);
- if (!line || !bdfIsPrefix(line, "ENDPROPERTIES")) {
- bdfError("missing 'ENDPROPERTIES'\n");
- goto BAILOUT;
- }
- if (!pState->haveFontAscent || !pState->haveFontDescent) {
- bdfError("missing 'FONT_ASCENT' or 'FONT_DESCENT' properties\n");
- goto BAILOUT;
- }
- if (bitmapFont->bitmapExtra) {
- bitmapFont->bitmapExtra->info.fontAscent = pFont->info.fontAscent;
- bitmapFont->bitmapExtra->info.fontDescent = pFont->info.fontDescent;
- }
- if (!pState->pointSizeProp) {
- props[nextProp].name = bdfForceMakeAtom("POINT_SIZE", NULL);
- props[nextProp].value = (INT32) (pState->pointSize * 10.0);
- stringProps[nextProp] = FALSE;
- pState->pointSizeProp = &props[nextProp];
- nextProp++;
- }
- if (!pState->fontProp) {
- props[nextProp].name = bdfForceMakeAtom("FONT", NULL);
- props[nextProp].value = (INT32) bdfForceMakeAtom(pState->fontName, NULL);
- stringProps[nextProp] = TRUE;
- pState->fontProp = &props[nextProp];
- nextProp++;
- }
- if (!pState->weightProp) {
- props[nextProp].name = bdfForceMakeAtom("WEIGHT", NULL);
- props[nextProp].value = -1; /* computed later */
- stringProps[nextProp] = FALSE;
- pState->weightProp = &props[nextProp];
- nextProp++;
- }
- if (!pState->resolutionProp &&
- pState->resolution_x == pState->resolution_y) {
- props[nextProp].name = bdfForceMakeAtom("RESOLUTION", NULL);
- props[nextProp].value = (INT32) ((pState->resolution_x * 100.0) / 72.27);
- stringProps[nextProp] = FALSE;
- pState->resolutionProp = &props[nextProp];
- nextProp++;
- }
- if (!pState->resolutionXProp) {
- props[nextProp].name = bdfForceMakeAtom("RESOLUTION_X", NULL);
- props[nextProp].value = (INT32) pState->resolution_x;
- stringProps[nextProp] = FALSE;
- pState->resolutionProp = &props[nextProp];
- nextProp++;
- }
- if (!pState->resolutionYProp) {
- props[nextProp].name = bdfForceMakeAtom("RESOLUTION_Y", NULL);
- props[nextProp].value = (INT32) pState->resolution_y;
- stringProps[nextProp] = FALSE;
- pState->resolutionProp = &props[nextProp];
- nextProp++;
- }
- if (!pState->xHeightProp) {
- props[nextProp].name = bdfForceMakeAtom("X_HEIGHT", NULL);
- props[nextProp].value = -1; /* computed later */
- stringProps[nextProp] = FALSE;
- pState->xHeightProp = &props[nextProp];
- nextProp++;
- }
- if (!pState->quadWidthProp) {
- props[nextProp].name = bdfForceMakeAtom("QUAD_WIDTH", NULL);
- props[nextProp].value = -1; /* computed later */
- stringProps[nextProp] = FALSE;
- pState->quadWidthProp = &props[nextProp];
- nextProp++;
- }
- pFont->info.nprops = nextProp;
- return (TRUE);
-BAILOUT:
- if (pFont->info.isStringProp) {
- free(pFont->info.isStringProp);
- pFont->info.isStringProp = NULL;
- }
- if (pFont->info.props) {
- free(pFont->info.props);
- pFont->info.props = NULL;
- }
- while (line && bdfIsPrefix(line, "ENDPROPERTIES"))
- line = bdfGetLine(file, lineBuf, BDFLINELEN);
- return (FALSE);
-}
-
-/***====================================================================***/
-
-static void
-bdfUnloadFont(FontPtr pFont)
-{
- bdfFreeFontBits (pFont);
- DestroyFontRec(pFont);
-}
-
-int
-bdfReadFont(FontPtr pFont, FontFilePtr file,
- int bit, int byte, int glyph, int scan)
-{
- bdfFileState state;
- xCharInfo *min,
- *max;
- BitmapFontPtr bitmapFont;
-
- pFont->fontPrivate = 0;
-
- bzero(&state, sizeof(bdfFileState));
- bdfFileLineNum = 0;
-
- if (!bdfReadHeader(file, &state))
- goto BAILOUT;
-
- bitmapFont = calloc(1, sizeof(BitmapFontRec));
- if (!bitmapFont) {
- bdfError("Couldn't allocate bitmapFontRec (%d)\n", sizeof(BitmapFontRec));
- goto BAILOUT;
- }
-
- pFont->fontPrivate = (pointer) bitmapFont;
- bitmapFont->metrics = 0;
- bitmapFont->ink_metrics = 0;
- bitmapFont->bitmaps = 0;
- bitmapFont->encoding = 0;
- bitmapFont->pDefault = NULL;
-
- bitmapFont->bitmapExtra = calloc(1, sizeof(BitmapExtraRec));
- if (!bitmapFont->bitmapExtra) {
- bdfError("Couldn't allocate bitmapExtra (%d)\n", sizeof(BitmapExtraRec));
- goto BAILOUT;
- }
-
- bitmapFont->bitmapExtra->glyphNames = 0;
- bitmapFont->bitmapExtra->sWidths = 0;
-
- if (!bdfReadProperties(file, pFont, &state))
- goto BAILOUT;
-
- if (!bdfReadCharacters(file, pFont, &state, bit, byte, glyph, scan))
- goto BAILOUT;
-
- if (state.haveDefaultCh) {
- 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 = ACCESSENCODING(bitmapFont->encoding,
- r * cols + c);
- }
- }
- pFont->bit = bit;
- pFont->byte = byte;
- pFont->glyph = glyph;
- pFont->scan = scan;
- pFont->info.anamorphic = FALSE;
- pFont->info.cachable = TRUE;
- bitmapComputeFontBounds(pFont);
- if (FontCouldBeTerminal(&pFont->info)) {
- bdfPadToTerminal(pFont);
- bitmapComputeFontBounds(pFont);
- }
- FontComputeInfoAccelerators(&pFont->info);
- if (bitmapFont->bitmapExtra)
- FontComputeInfoAccelerators(&bitmapFont->bitmapExtra->info);
- if (pFont->info.constantMetrics) {
- if (!bitmapAddInkMetrics(pFont)) {
- bdfError("Failed to add bitmap ink metrics\n");
- goto BAILOUT;
- }
- }
- if (bitmapFont->bitmapExtra)
- bitmapFont->bitmapExtra->info.inkMetrics = pFont->info.inkMetrics;
-
- bitmapComputeFontInkBounds(pFont);
-/* ComputeFontAccelerators (pFont); */
-
- /* generate properties */
- min = &pFont->info.ink_minbounds;
- max = &pFont->info.ink_maxbounds;
- if (state.xHeightProp && (state.xHeightProp->value == -1))
- state.xHeightProp->value = state.exHeight ?
- state.exHeight : min->ascent;
-
- if (state.quadWidthProp && (state.quadWidthProp->value == -1))
- state.quadWidthProp->value = state.digitCount ?
- (INT32) (state.digitWidths / state.digitCount) :
- (min->characterWidth + max->characterWidth) / 2;
-
- if (state.weightProp && (state.weightProp->value == -1))
- state.weightProp->value = bitmapComputeWeight(pFont);
-
- pFont->get_glyphs = bitmapGetGlyphs;
- pFont->get_metrics = bitmapGetMetrics;
- pFont->unload_font = bdfUnloadFont;
- pFont->unload_glyphs = NULL;
- return Successful;
-BAILOUT:
- if (pFont->fontPrivate)
- bdfFreeFontBits (pFont);
- return AllocError;
-}
-
-int
-bdfReadFontInfo(FontInfoPtr pFontInfo, FontFilePtr file)
-{
- FontRec font;
- int ret;
-
- bzero(&font, sizeof (FontRec));
-
- ret = bdfReadFont(&font, file, MSBFirst, LSBFirst, 1, 1);
- if (ret == Successful) {
- *pFontInfo = font.info;
- font.info.props = 0;
- font.info.isStringProp = 0;
- font.info.nprops = 0;
- bdfFreeFontBits (&font);
- }
- return ret;
-}
-
-static Bool
-bdfPadToTerminal(FontPtr pFont)
-{
- BitmapFontPtr bitmapFont;
- BitmapExtraPtr bitmapExtra;
- int i;
- int new_size;
- CharInfoRec new;
- int w,
- h;
-
- bitmapFont = (BitmapFontPtr) pFont->fontPrivate;
-
- bzero(&new, sizeof(CharInfoRec));
- new.metrics.ascent = pFont->info.fontAscent;
- new.metrics.descent = pFont->info.fontDescent;
- new.metrics.leftSideBearing = 0;
- new.metrics.rightSideBearing = pFont->info.minbounds.characterWidth;
- new.metrics.characterWidth = new.metrics.rightSideBearing;
- new_size = BYTES_FOR_GLYPH(&new, pFont->glyph);
-
- for (i = 0; i < bitmapFont->num_chars; i++) {
- new.bits = malloc(new_size);
- if (!new.bits) {
- bdfError("Couldn't allocate bits (%d)\n", new_size);
- return FALSE;
- }
- FontCharReshape(pFont, &bitmapFont->metrics[i], &new);
- new.metrics.attributes = bitmapFont->metrics[i].metrics.attributes;
- free(bitmapFont->metrics[i].bits);
- bitmapFont->metrics[i] = new;
- }
- bitmapExtra = bitmapFont->bitmapExtra;
- if (bitmapExtra) {
- w = GLYPHWIDTHPIXELS(&new);
- h = GLYPHHEIGHTPIXELS(&new);
- for (i = 0; i < GLYPHPADOPTIONS; i++)
- bitmapExtra->bitmapsSizes[i] = bitmapFont->num_chars *
- (BYTES_PER_ROW(w, 1 << i) * h);
- }
- return TRUE;
-}
+/************************************************************************ +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/fontutil.h> +/* use bitmap structure */ +#include <X11/fonts/bitmap.h> +#include <X11/fonts/bdfint.h> + +#if HAVE_STDINT_H +#include <stdint.h> +#elif !defined(INT32_MAX) +#define INT32_MAX 0x7fffffff +#endif + +#define INDICES 256 +#define MAXENCODING 0xFFFF +#define BDFLINELEN 1024 + +static Bool bdfPadToTerminal(FontPtr pFont); +extern int bdfFileLineNum; + +/***====================================================================***/ + +static Bool +bdfReadBitmap(CharInfoPtr pCI, FontFilePtr file, int bit, int byte, + int glyph, int scan, CARD32 *sizes) +{ + int widthBits, + widthBytes, + widthHexChars; + int height, + row; + int i, + inLineLen, + nextByte; + unsigned char *pInBits, + *picture, + *line = NULL; + unsigned char lineBuf[BDFLINELEN]; + + widthBits = GLYPHWIDTHPIXELS(pCI); + height = GLYPHHEIGHTPIXELS(pCI); + + widthBytes = BYTES_PER_ROW(widthBits, glyph); + if (widthBytes * height > 0) { + picture = malloc(widthBytes * height); + if (!picture) { + bdfError("Couldn't allocate picture (%d*%d)\n", widthBytes, height); + goto BAILOUT; + } + } else + picture = NULL; + pCI->bits = (char *) picture; + + if (sizes) { + for (i = 0; i < GLYPHPADOPTIONS; i++) + sizes[i] += BYTES_PER_ROW(widthBits, (1 << i)) * height; + } + nextByte = 0; + widthHexChars = BYTES_PER_ROW(widthBits, 1); + +/* 5/31/89 (ef) -- hack, hack, hack. what *am* I supposed to do with */ +/* 0 width characters? */ + + for (row = 0; row < height; row++) { + line = bdfGetLine(file, lineBuf, BDFLINELEN); + if (!line) + break; + + if (widthBits == 0) { + if ((!line) || (bdfIsPrefix(line, "ENDCHAR"))) + break; + else + continue; + } + pInBits = line; + inLineLen = strlen((char *) pInBits); + + if (inLineLen & 1) { + bdfError("odd number of characters in hex encoding\n"); + line[inLineLen++] = '0'; + line[inLineLen] = '\0'; + } + inLineLen >>= 1; + i = inLineLen; + if (i > widthHexChars) + i = widthHexChars; + for (; i > 0; i--, pInBits += 2) + picture[nextByte++] = bdfHexByte(pInBits); + + /* pad if line is too short */ + if (inLineLen < widthHexChars) { + for (i = widthHexChars - inLineLen; i > 0; i--) + picture[nextByte++] = 0; + } else { + unsigned char mask; + + mask = 0xff << (8 - (widthBits & 0x7)); + if (mask && picture[nextByte - 1] & ~mask) { + picture[nextByte - 1] &= mask; + } + } + + if (widthBytes > widthHexChars) { + i = widthBytes - widthHexChars; + while (i-- > 0) + picture[nextByte++] = 0; + } + } + + if ((line && (!bdfIsPrefix(line, "ENDCHAR"))) || (height == 0)) + line = bdfGetLine(file, lineBuf, BDFLINELEN); + + if ((!line) || (!bdfIsPrefix(line, "ENDCHAR"))) { + bdfError("missing 'ENDCHAR'\n"); + goto BAILOUT; + } + if (nextByte != height * widthBytes) { + bdfError("bytes != rows * bytes_per_row (%d != %d * %d)\n", + nextByte, height, widthBytes); + goto BAILOUT; + } + if (picture != NULL) { + if (bit == LSBFirst) + BitOrderInvert(picture, nextByte); + if (bit != byte) { + if (scan == 2) + TwoByteSwap(picture, nextByte); + else if (scan == 4) + FourByteSwap(picture, nextByte); + } + } + return (TRUE); +BAILOUT: + if (picture) + free(picture); + pCI->bits = NULL; + return (FALSE); +} + +/***====================================================================***/ + +static Bool +bdfSkipBitmap(FontFilePtr file, int height) +{ + unsigned char *line; + int i = 0; + unsigned char lineBuf[BDFLINELEN]; + + do { + line = bdfGetLine(file, lineBuf, BDFLINELEN); + i++; + } while (line && !bdfIsPrefix(line, "ENDCHAR") && i <= height); + + if (i > 1 && line && !bdfIsPrefix(line, "ENDCHAR")) { + bdfError("Error in bitmap, missing 'ENDCHAR'\n"); + return (FALSE); + } + return (TRUE); +} + +/***====================================================================***/ + +static void +bdfFreeFontBits(FontPtr pFont) +{ + BitmapFontPtr bitmapFont; + BitmapExtraPtr bitmapExtra; + int i, nencoding; + + bitmapFont = (BitmapFontPtr) pFont->fontPrivate; + bitmapExtra = (BitmapExtraPtr) bitmapFont->bitmapExtra; + free(bitmapFont->ink_metrics); + if(bitmapFont->encoding) { + nencoding = (pFont->info.lastCol - pFont->info.firstCol + 1) * + (pFont->info.lastRow - pFont->info.firstRow + 1); + for(i=0; i<NUM_SEGMENTS(nencoding); i++) + free(bitmapFont->encoding[i]); + } + free(bitmapFont->encoding); + for (i = 0; i < bitmapFont->num_chars; i++) + free(bitmapFont->metrics[i].bits); + free(bitmapFont->metrics); + if (bitmapExtra) + { + free (bitmapExtra->glyphNames); + free (bitmapExtra->sWidths); + free (bitmapExtra); + } + free(pFont->info.props); + free(bitmapFont); +} + + +static Bool +bdfReadCharacters(FontFilePtr file, FontPtr pFont, bdfFileState *pState, + int bit, int byte, int glyph, int scan) +{ + unsigned char *line; + register CharInfoPtr ci; + int i, + ndx, + nchars, + nignored; + unsigned int char_row, char_col; + int numEncodedGlyphs = 0; + CharInfoPtr *bdfEncoding[256]; + BitmapFontPtr bitmapFont; + BitmapExtraPtr bitmapExtra; + CARD32 *bitmapsSizes; + unsigned char lineBuf[BDFLINELEN]; + int nencoding; + + bitmapFont = (BitmapFontPtr) pFont->fontPrivate; + bitmapExtra = (BitmapExtraPtr) bitmapFont->bitmapExtra; + + if (bitmapExtra) { + bitmapsSizes = bitmapExtra->bitmapsSizes; + for (i = 0; i < GLYPHPADOPTIONS; i++) + bitmapsSizes[i] = 0; + } else + bitmapsSizes = NULL; + + bzero(bdfEncoding, sizeof(bdfEncoding)); + bitmapFont->metrics = NULL; + ndx = 0; + + line = bdfGetLine(file, lineBuf, BDFLINELEN); + + if ((!line) || (sscanf((char *) line, "CHARS %d", &nchars) != 1)) { + bdfError("bad 'CHARS' in bdf file\n"); + return (FALSE); + } + if (nchars < 1) { + bdfError("invalid number of CHARS in BDF file\n"); + return (FALSE); + } + if (nchars > INT32_MAX / sizeof(CharInfoRec)) { + bdfError("Couldn't allocate pCI (%d*%d)\n", nchars, + sizeof(CharInfoRec)); + goto BAILOUT; + } + ci = calloc(nchars, sizeof(CharInfoRec)); + if (!ci) { + bdfError("Couldn't allocate pCI (%d*%d)\n", nchars, + sizeof(CharInfoRec)); + goto BAILOUT; + } + bitmapFont->metrics = ci; + + if (bitmapExtra) { + bitmapExtra->glyphNames = malloc(nchars * sizeof(Atom)); + if (!bitmapExtra->glyphNames) { + bdfError("Couldn't allocate glyphNames (%d*%d)\n", + nchars, sizeof(Atom)); + goto BAILOUT; + } + } + if (bitmapExtra) { + bitmapExtra->sWidths = malloc(nchars * sizeof(int)); + if (!bitmapExtra->sWidths) { + bdfError("Couldn't allocate sWidth (%d *%d)\n", + nchars, sizeof(int)); + return FALSE; + } + } + line = bdfGetLine(file, lineBuf, BDFLINELEN); + pFont->info.firstRow = 256; + pFont->info.lastRow = 0; + pFont->info.firstCol = 256; + pFont->info.lastCol = 0; + nignored = 0; + for (ndx = 0; (ndx < nchars) && (line) && (bdfIsPrefix(line, "STARTCHAR"));) { + int t; + int wx; /* x component of width */ + int wy; /* y component of width */ + int bw; /* bounding-box width */ + int bh; /* bounding-box height */ + int bl; /* bounding-box left */ + int bb; /* bounding-box bottom */ + int enc, + enc2; /* encoding */ + unsigned char *p; /* temp pointer into line */ + char charName[100]; + int ignore; + + if (sscanf((char *) line, "STARTCHAR %s", charName) != 1) { + bdfError("bad character name in BDF file\n"); + goto BAILOUT; /* bottom of function, free and return error */ + } + if (bitmapExtra) + bitmapExtra->glyphNames[ndx] = bdfForceMakeAtom(charName, NULL); + + line = bdfGetLine(file, lineBuf, BDFLINELEN); + if (!line || (t = sscanf((char *) line, "ENCODING %d %d", &enc, &enc2)) < 1) { + bdfError("bad 'ENCODING' in BDF file\n"); + goto BAILOUT; + } + if (enc < -1 || (t == 2 && enc2 < -1)) { + bdfError("bad ENCODING value"); + goto BAILOUT; + } + if (t == 2 && enc == -1) + enc = enc2; + ignore = 0; + if (enc == -1) { + if (!bitmapExtra) { + nignored++; + ignore = 1; + } + } else if (enc > MAXENCODING) { + bdfError("char '%s' has encoding too large (%d)\n", + charName, enc); + } else { + char_row = (enc >> 8) & 0xFF; + char_col = enc & 0xFF; + if (char_row < pFont->info.firstRow) + pFont->info.firstRow = char_row; + if (char_row > pFont->info.lastRow) + pFont->info.lastRow = char_row; + if (char_col < pFont->info.firstCol) + pFont->info.firstCol = char_col; + if (char_col > pFont->info.lastCol) + pFont->info.lastCol = char_col; + if (bdfEncoding[char_row] == (CharInfoPtr *) NULL) { + bdfEncoding[char_row] = malloc(256 * sizeof(CharInfoPtr)); + if (!bdfEncoding[char_row]) { + bdfError("Couldn't allocate row %d of encoding (%d*%d)\n", + char_row, INDICES, sizeof(CharInfoPtr)); + goto BAILOUT; + } + for (i = 0; i < 256; i++) + bdfEncoding[char_row][i] = (CharInfoPtr) NULL; + } + if (bdfEncoding[char_row] != NULL) { + bdfEncoding[char_row][char_col] = ci; + numEncodedGlyphs++; + } + } + + line = bdfGetLine(file, lineBuf, BDFLINELEN); + if ((!line) || (sscanf((char *) line, "SWIDTH %d %d", &wx, &wy) != 2)) { + bdfError("bad 'SWIDTH'\n"); + goto BAILOUT; + } + if (wy != 0) { + bdfError("SWIDTH y value must be zero\n"); + goto BAILOUT; + } + if (bitmapExtra) + bitmapExtra->sWidths[ndx] = wx; + +/* 5/31/89 (ef) -- we should be able to ditch the character and recover */ +/* from all of these. */ + + line = bdfGetLine(file, lineBuf, BDFLINELEN); + if ((!line) || (sscanf((char *) line, "DWIDTH %d %d", &wx, &wy) != 2)) { + bdfError("bad 'DWIDTH'\n"); + goto BAILOUT; + } + if (wy != 0) { + bdfError("DWIDTH y value must be zero\n"); + goto BAILOUT; + } + line = bdfGetLine(file, lineBuf, BDFLINELEN); + if ((!line) || (sscanf((char *) line, "BBX %d %d %d %d", &bw, &bh, &bl, &bb) != 4)) { + bdfError("bad 'BBX'\n"); + goto BAILOUT; + } + if ((bh < 0) || (bw < 0)) { + bdfError("character '%s' has a negative sized bitmap, %dx%d\n", + charName, bw, bh); + goto BAILOUT; + } + line = bdfGetLine(file, lineBuf, BDFLINELEN); + if ((line) && (bdfIsPrefix(line, "ATTRIBUTES"))) { + for (p = line + strlen("ATTRIBUTES "); + (*p == ' ') || (*p == '\t'); + p++) + /* empty for loop */ ; + ci->metrics.attributes = (bdfHexByte(p) << 8) + bdfHexByte(p + 2); + line = bdfGetLine(file, lineBuf, BDFLINELEN); + } else + ci->metrics.attributes = 0; + + if (!line || !bdfIsPrefix(line, "BITMAP")) { + bdfError("missing 'BITMAP'\n"); + goto BAILOUT; + } + /* collect data for generated properties */ + if ((strlen(charName) == 1)) { + if ((charName[0] >= '0') && (charName[0] <= '9')) { + pState->digitWidths += wx; + pState->digitCount++; + } else if (charName[0] == 'x') { + pState->exHeight = (bh + bb) <= 0 ? bh : bh + bb; + } + } + if (!ignore) { + ci->metrics.leftSideBearing = bl; + ci->metrics.rightSideBearing = bl + bw; + ci->metrics.ascent = bh + bb; + ci->metrics.descent = -bb; + ci->metrics.characterWidth = wx; + ci->bits = NULL; + bdfReadBitmap(ci, file, bit, byte, glyph, scan, bitmapsSizes); + ci++; + ndx++; + } else + bdfSkipBitmap(file, bh); + + line = bdfGetLine(file, lineBuf, BDFLINELEN); /* get STARTCHAR or + * ENDFONT */ + } + + if (ndx + nignored != nchars) { + bdfError("%d too few characters\n", nchars - (ndx + nignored)); + goto BAILOUT; + } + nchars = ndx; + bitmapFont->num_chars = nchars; + if ((line) && (bdfIsPrefix(line, "STARTCHAR"))) { + bdfError("more characters than specified\n"); + goto BAILOUT; + } + if ((!line) || (!bdfIsPrefix(line, "ENDFONT"))) { + bdfError("missing 'ENDFONT'\n"); + goto BAILOUT; + } + if (numEncodedGlyphs == 0) + bdfWarning("No characters with valid encodings\n"); + + nencoding = (pFont->info.lastRow - pFont->info.firstRow + 1) * + (pFont->info.lastCol - pFont->info.firstCol + 1); + bitmapFont->encoding = calloc(NUM_SEGMENTS(nencoding),sizeof(CharInfoPtr*)); + if (!bitmapFont->encoding) { + bdfError("Couldn't allocate ppCI (%d,%d)\n", + NUM_SEGMENTS(nencoding), + sizeof(CharInfoPtr*)); + goto BAILOUT; + } + pFont->info.allExist = TRUE; + i = 0; + for (char_row = pFont->info.firstRow; + char_row <= pFont->info.lastRow; + char_row++) { + if (bdfEncoding[char_row] == (CharInfoPtr *) NULL) { + pFont->info.allExist = FALSE; + i += pFont->info.lastCol - pFont->info.firstCol + 1; + } else { + for (char_col = pFont->info.firstCol; + char_col <= pFont->info.lastCol; + char_col++) { + if (!bdfEncoding[char_row][char_col]) + pFont->info.allExist = FALSE; + else { + if (!bitmapFont->encoding[SEGMENT_MAJOR(i)]) { + bitmapFont->encoding[SEGMENT_MAJOR(i)]= + calloc(BITMAP_FONT_SEGMENT_SIZE, + sizeof(CharInfoPtr)); + if (!bitmapFont->encoding[SEGMENT_MAJOR(i)]) + goto BAILOUT; + } + ACCESSENCODINGL(bitmapFont->encoding,i) = + bdfEncoding[char_row][char_col]; + } + i++; + } + } + } + for (i = 0; i < 256; i++) + if (bdfEncoding[i]) + free(bdfEncoding[i]); + return (TRUE); +BAILOUT: + for (i = 0; i < 256; i++) + if (bdfEncoding[i]) + free(bdfEncoding[i]); + /* bdfFreeFontBits will clean up the rest */ + return (FALSE); +} + +/***====================================================================***/ + +static Bool +bdfReadHeader(FontFilePtr file, bdfFileState *pState) +{ + unsigned char *line; + char namebuf[BDFLINELEN]; + unsigned char lineBuf[BDFLINELEN]; + + line = bdfGetLine(file, lineBuf, BDFLINELEN); + if (!line || sscanf((char *) line, "STARTFONT %s", namebuf) != 1 || + !bdfStrEqual(namebuf, "2.1")) { + bdfError("bad 'STARTFONT'\n"); + return (FALSE); + } + line = bdfGetLine(file, lineBuf, BDFLINELEN); + if (!line || sscanf((char *) line, "FONT %[^\n]", pState->fontName) != 1) { + bdfError("bad 'FONT'\n"); + return (FALSE); + } + line = bdfGetLine(file, lineBuf, BDFLINELEN); + if (!line || !bdfIsPrefix(line, "SIZE")) { + bdfError("missing 'SIZE'\n"); + return (FALSE); + } + if (sscanf((char *) line, "SIZE %f%d%d", &pState->pointSize, + &pState->resolution_x, &pState->resolution_y) != 3) { + bdfError("bad 'SIZE'\n"); + return (FALSE); + } + if (pState->pointSize < 1 || + pState->resolution_x < 1 || pState->resolution_y < 1) { + bdfError("SIZE values must be > 0\n"); + return (FALSE); + } + line = bdfGetLine(file, lineBuf, BDFLINELEN); + if (!line || !bdfIsPrefix(line, "FONTBOUNDINGBOX")) { + bdfError("missing 'FONTBOUNDINGBOX'\n"); + return (FALSE); + } + return (TRUE); +} + +/***====================================================================***/ + +static Bool +bdfReadProperties(FontFilePtr file, FontPtr pFont, bdfFileState *pState) +{ + int nProps, props_left, + nextProp; + char *stringProps; + FontPropPtr props; + char namebuf[BDFLINELEN], + secondbuf[BDFLINELEN], + thirdbuf[BDFLINELEN]; + unsigned char *line; + unsigned char lineBuf[BDFLINELEN]; + BitmapFontPtr bitmapFont = (BitmapFontPtr) pFont->fontPrivate; + + line = bdfGetLine(file, lineBuf, BDFLINELEN); + if (!line || !bdfIsPrefix(line, "STARTPROPERTIES")) { + bdfError("missing 'STARTPROPERTIES'\n"); + return (FALSE); + } + if (sscanf((char *) line, "STARTPROPERTIES %d", &nProps) != 1) { + bdfError("bad 'STARTPROPERTIES'\n"); + return (FALSE); + } + pFont->info.isStringProp = NULL; + pFont->info.props = NULL; + pFont->info.nprops = 0; + + stringProps = malloc((nProps + BDF_GENPROPS) * sizeof(char)); + pFont->info.isStringProp = stringProps; + if (stringProps == NULL) { + bdfError("Couldn't allocate stringProps (%d*%d)\n", + (nProps + BDF_GENPROPS), sizeof(Bool)); + goto BAILOUT; + } + pFont->info.props = props = calloc(nProps + BDF_GENPROPS, + sizeof(FontPropRec)); + if (props == NULL) { + bdfError("Couldn't allocate props (%d*%d)\n", nProps + BDF_GENPROPS, + sizeof(FontPropRec)); + goto BAILOUT; + } + + nextProp = 0; + props_left = nProps; + while (props_left-- > 0) { + line = bdfGetLine(file, lineBuf, BDFLINELEN); + if (line == NULL || bdfIsPrefix(line, "ENDPROPERTIES")) { + bdfError("\"STARTPROPERTIES %d\" followed by only %d properties\n", + nProps, nProps - props_left - 1); + goto BAILOUT; + } + while (*line && isspace(*line)) + line++; + + switch (sscanf((char *) line, "%s%s%s", namebuf, secondbuf, thirdbuf)) { + default: + bdfError("missing '%s' parameter value\n", namebuf); + goto BAILOUT; + + case 2: + /* + * Possibilites include: valid quoted string with no white space + * valid integer value invalid value + */ + if (secondbuf[0] == '"') { + stringProps[nextProp] = TRUE; + props[nextProp].value = + bdfGetPropertyValue((char *)line + strlen(namebuf) + 1); + if (!props[nextProp].value) + goto BAILOUT; + break; + } else if (bdfIsInteger(secondbuf)) { + stringProps[nextProp] = FALSE; + props[nextProp].value = atoi(secondbuf); + break; + } else { + bdfError("invalid '%s' parameter value\n", namebuf); + goto BAILOUT; + } + + case 3: + /* + * Possibilites include: valid quoted string with some white space + * invalid value (reject even if second string is integer) + */ + if (secondbuf[0] == '"') { + stringProps[nextProp] = TRUE; + props[nextProp].value = + bdfGetPropertyValue((char *)line + strlen(namebuf) + 1); + if (!props[nextProp].value) + goto BAILOUT; + break; + } else { + bdfError("invalid '%s' parameter value\n", namebuf); + goto BAILOUT; + } + } + props[nextProp].name = bdfForceMakeAtom(namebuf, NULL); + if (props[nextProp].name == None) { + bdfError("Empty property name.\n"); + goto BAILOUT; + } + if (!bdfSpecialProperty(pFont, &props[nextProp], + stringProps[nextProp], pState)) + nextProp++; + } + + line = bdfGetLine(file, lineBuf, BDFLINELEN); + if (!line || !bdfIsPrefix(line, "ENDPROPERTIES")) { + bdfError("missing 'ENDPROPERTIES'\n"); + goto BAILOUT; + } + if (!pState->haveFontAscent || !pState->haveFontDescent) { + bdfError("missing 'FONT_ASCENT' or 'FONT_DESCENT' properties\n"); + goto BAILOUT; + } + if (bitmapFont->bitmapExtra) { + bitmapFont->bitmapExtra->info.fontAscent = pFont->info.fontAscent; + bitmapFont->bitmapExtra->info.fontDescent = pFont->info.fontDescent; + } + if (!pState->pointSizeProp) { + props[nextProp].name = bdfForceMakeAtom("POINT_SIZE", NULL); + props[nextProp].value = (INT32) (pState->pointSize * 10.0); + stringProps[nextProp] = FALSE; + pState->pointSizeProp = &props[nextProp]; + nextProp++; + } + if (!pState->fontProp) { + props[nextProp].name = bdfForceMakeAtom("FONT", NULL); + props[nextProp].value = (INT32) bdfForceMakeAtom(pState->fontName, NULL); + stringProps[nextProp] = TRUE; + pState->fontProp = &props[nextProp]; + nextProp++; + } + if (!pState->weightProp) { + props[nextProp].name = bdfForceMakeAtom("WEIGHT", NULL); + props[nextProp].value = -1; /* computed later */ + stringProps[nextProp] = FALSE; + pState->weightProp = &props[nextProp]; + nextProp++; + } + if (!pState->resolutionProp && + pState->resolution_x == pState->resolution_y) { + props[nextProp].name = bdfForceMakeAtom("RESOLUTION", NULL); + props[nextProp].value = (INT32) ((pState->resolution_x * 100.0) / 72.27); + stringProps[nextProp] = FALSE; + pState->resolutionProp = &props[nextProp]; + nextProp++; + } + if (!pState->resolutionXProp) { + props[nextProp].name = bdfForceMakeAtom("RESOLUTION_X", NULL); + props[nextProp].value = (INT32) pState->resolution_x; + stringProps[nextProp] = FALSE; + pState->resolutionProp = &props[nextProp]; + nextProp++; + } + if (!pState->resolutionYProp) { + props[nextProp].name = bdfForceMakeAtom("RESOLUTION_Y", NULL); + props[nextProp].value = (INT32) pState->resolution_y; + stringProps[nextProp] = FALSE; + pState->resolutionProp = &props[nextProp]; + nextProp++; + } + if (!pState->xHeightProp) { + props[nextProp].name = bdfForceMakeAtom("X_HEIGHT", NULL); + props[nextProp].value = -1; /* computed later */ + stringProps[nextProp] = FALSE; + pState->xHeightProp = &props[nextProp]; + nextProp++; + } + if (!pState->quadWidthProp) { + props[nextProp].name = bdfForceMakeAtom("QUAD_WIDTH", NULL); + props[nextProp].value = -1; /* computed later */ + stringProps[nextProp] = FALSE; + pState->quadWidthProp = &props[nextProp]; + nextProp++; + } + pFont->info.nprops = nextProp; + return (TRUE); +BAILOUT: + if (pFont->info.isStringProp) { + free(pFont->info.isStringProp); + pFont->info.isStringProp = NULL; + } + if (pFont->info.props) { + free(pFont->info.props); + pFont->info.props = NULL; + } + while (line && bdfIsPrefix(line, "ENDPROPERTIES")) + line = bdfGetLine(file, lineBuf, BDFLINELEN); + return (FALSE); +} + +/***====================================================================***/ + +static void +bdfUnloadFont(FontPtr pFont) +{ + bdfFreeFontBits (pFont); + DestroyFontRec(pFont); +} + +int +bdfReadFont(FontPtr pFont, FontFilePtr file, + int bit, int byte, int glyph, int scan) +{ + bdfFileState state; + xCharInfo *min, + *max; + BitmapFontPtr bitmapFont; + + pFont->fontPrivate = 0; + + bzero(&state, sizeof(bdfFileState)); + bdfFileLineNum = 0; + + if (!bdfReadHeader(file, &state)) + goto BAILOUT; + + bitmapFont = calloc(1, sizeof(BitmapFontRec)); + if (!bitmapFont) { + bdfError("Couldn't allocate bitmapFontRec (%d)\n", sizeof(BitmapFontRec)); + goto BAILOUT; + } + + pFont->fontPrivate = (pointer) bitmapFont; + bitmapFont->metrics = 0; + bitmapFont->ink_metrics = 0; + bitmapFont->bitmaps = 0; + bitmapFont->encoding = 0; + bitmapFont->pDefault = NULL; + + bitmapFont->bitmapExtra = calloc(1, sizeof(BitmapExtraRec)); + if (!bitmapFont->bitmapExtra) { + bdfError("Couldn't allocate bitmapExtra (%d)\n", sizeof(BitmapExtraRec)); + goto BAILOUT; + } + + bitmapFont->bitmapExtra->glyphNames = 0; + bitmapFont->bitmapExtra->sWidths = 0; + + if (!bdfReadProperties(file, pFont, &state)) + goto BAILOUT; + + if (!bdfReadCharacters(file, pFont, &state, bit, byte, glyph, scan)) + goto BAILOUT; + + if (state.haveDefaultCh) { + 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 = ACCESSENCODING(bitmapFont->encoding, + r * cols + c); + } + } + pFont->bit = bit; + pFont->byte = byte; + pFont->glyph = glyph; + pFont->scan = scan; + pFont->info.anamorphic = FALSE; + pFont->info.cachable = TRUE; + bitmapComputeFontBounds(pFont); + if (FontCouldBeTerminal(&pFont->info)) { + bdfPadToTerminal(pFont); + bitmapComputeFontBounds(pFont); + } + FontComputeInfoAccelerators(&pFont->info); + if (bitmapFont->bitmapExtra) + FontComputeInfoAccelerators(&bitmapFont->bitmapExtra->info); + if (pFont->info.constantMetrics) { + if (!bitmapAddInkMetrics(pFont)) { + bdfError("Failed to add bitmap ink metrics\n"); + goto BAILOUT; + } + } + if (bitmapFont->bitmapExtra) + bitmapFont->bitmapExtra->info.inkMetrics = pFont->info.inkMetrics; + + bitmapComputeFontInkBounds(pFont); +/* ComputeFontAccelerators (pFont); */ + + /* generate properties */ + min = &pFont->info.ink_minbounds; + max = &pFont->info.ink_maxbounds; + if (state.xHeightProp && (state.xHeightProp->value == -1)) + state.xHeightProp->value = state.exHeight ? + state.exHeight : min->ascent; + + if (state.quadWidthProp && (state.quadWidthProp->value == -1)) + state.quadWidthProp->value = state.digitCount ? + (INT32) (state.digitWidths / state.digitCount) : + (min->characterWidth + max->characterWidth) / 2; + + if (state.weightProp && (state.weightProp->value == -1)) + state.weightProp->value = bitmapComputeWeight(pFont); + + pFont->get_glyphs = bitmapGetGlyphs; + pFont->get_metrics = bitmapGetMetrics; + pFont->unload_font = bdfUnloadFont; + pFont->unload_glyphs = NULL; + return Successful; +BAILOUT: + if (pFont->fontPrivate) + bdfFreeFontBits (pFont); + return AllocError; +} + +int +bdfReadFontInfo(FontInfoPtr pFontInfo, FontFilePtr file) +{ + FontRec font; + int ret; + + bzero(&font, sizeof (FontRec)); + + ret = bdfReadFont(&font, file, MSBFirst, LSBFirst, 1, 1); + if (ret == Successful) { + *pFontInfo = font.info; + font.info.props = 0; + font.info.isStringProp = 0; + font.info.nprops = 0; + bdfFreeFontBits (&font); + } + return ret; +} + +static Bool +bdfPadToTerminal(FontPtr pFont) +{ + BitmapFontPtr bitmapFont; + BitmapExtraPtr bitmapExtra; + int i; + int new_size; + CharInfoRec new; + int w, + h; + + bitmapFont = (BitmapFontPtr) pFont->fontPrivate; + + bzero(&new, sizeof(CharInfoRec)); + new.metrics.ascent = pFont->info.fontAscent; + new.metrics.descent = pFont->info.fontDescent; + new.metrics.leftSideBearing = 0; + new.metrics.rightSideBearing = pFont->info.minbounds.characterWidth; + new.metrics.characterWidth = new.metrics.rightSideBearing; + new_size = BYTES_FOR_GLYPH(&new, pFont->glyph); + + for (i = 0; i < bitmapFont->num_chars; i++) { + new.bits = malloc(new_size); + if (!new.bits) { + bdfError("Couldn't allocate bits (%d)\n", new_size); + return FALSE; + } + FontCharReshape(pFont, &bitmapFont->metrics[i], &new); + new.metrics.attributes = bitmapFont->metrics[i].metrics.attributes; + free(bitmapFont->metrics[i].bits); + bitmapFont->metrics[i] = new; + } + bitmapExtra = bitmapFont->bitmapExtra; + if (bitmapExtra) { + w = GLYPHWIDTHPIXELS(&new); + h = GLYPHHEIGHTPIXELS(&new); + for (i = 0; i < GLYPHPADOPTIONS; i++) + bitmapExtra->bitmapsSizes[i] = bitmapFont->num_chars * + (BYTES_PER_ROW(w, 1 << i) * h); + } + return TRUE; +} diff --git a/libXfont/src/bitmap/bdfutils.c b/libXfont/src/bitmap/bdfutils.c index 7cae0de6a..1d6cc7253 100644 --- a/libXfont/src/bitmap/bdfutils.c +++ b/libXfont/src/bitmap/bdfutils.c @@ -1,336 +1,336 @@ -/************************************************************************
-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 <stdio.h>
-#include <stdarg.h>
-
-#include <X11/fonts/fntfilst.h>
-#include <X11/fonts/fontstruct.h>
-/* use bitmap structure */
-#include <X11/fonts/bitmap.h>
-#include <X11/fonts/bdfint.h>
-
-int bdfFileLineNum;
-
-/***====================================================================***/
-
-void
-bdfError(char* message, ...)
-{
- va_list args;
-
- va_start (args, message);
- fprintf(stderr, "BDF Error on line %d: ", bdfFileLineNum);
- vfprintf(stderr, message, args);
- va_end (args);
-}
-
-/***====================================================================***/
-
-void
-bdfWarning(char *message, ...)
-{
- va_list args;
-
- va_start (args, message);
- fprintf(stderr, "BDF Warning on line %d: ", bdfFileLineNum);
- vfprintf(stderr, message, args);
- va_end (args);
-}
-
-/*
- * read the next (non-comment) line and keep a count for error messages.
- * Returns buf, or NULL if EOF.
- */
-
-unsigned char *
-bdfGetLine(FontFilePtr file, unsigned char *buf, int len)
-{
- int c;
- unsigned char *b;
-
- for (;;) {
- b = buf;
- while ((c = FontFileGetc(file)) != FontFileEOF) {
- if (c == '\r')
- continue;
- if (c == '\n') {
- bdfFileLineNum++;
- break;
- }
- if (b - buf >= (len - 1))
- break;
- *b++ = c;
- }
- *b = '\0';
- if (c == FontFileEOF)
- return NULL;
- if (b != buf && !bdfIsPrefix(buf, "COMMENT"))
- break;
- }
- return buf;
-}
-
-/***====================================================================***/
-
-Atom
-bdfForceMakeAtom(char *str, int *size)
-{
- register int len = strlen(str);
- Atom the_atom;
-
- if (size != NULL)
- *size += len + 1;
- the_atom = MakeAtom(str, len, TRUE);
- if (the_atom == None)
- bdfError("Atom allocation failed\n");
- return the_atom;
-}
-
-/***====================================================================***/
-
-/*
- * Handle quoted strings.
- */
-
-Atom
-bdfGetPropertyValue(char *s)
-{
- register char *p,
- *pp;
- char *orig_s = s;
- Atom atom;
-
- /* strip leading white space */
- while (*s && (*s == ' ' || *s == '\t'))
- s++;
- if (*s == 0) {
- return bdfForceMakeAtom(s, NULL);
- }
- if (*s != '"') {
- pp = s;
- /* no white space in value */
- for (pp = s; *pp; pp++)
- if (*pp == ' ' || *pp == '\t' || *pp == '\015' || *pp == '\n') {
- *pp = 0;
- break;
- }
- return bdfForceMakeAtom(s, NULL);
- }
- /* quoted string: strip outer quotes and undouble inner quotes */
- s++;
- pp = p = malloc((unsigned) strlen(s) + 1);
- if (pp == NULL) {
- bdfError("Couldn't allocate property value string (%d)\n", strlen(s) + 1);
- return None;
- }
- while (*s) {
- if (*s == '"') {
- if (*(s + 1) != '"') {
- *p++ = 0;
- atom = bdfForceMakeAtom(pp, NULL);
- free(pp);
- return atom;
- } else {
- s++;
- }
- }
- *p++ = *s++;
- }
- free (pp);
- bdfError("unterminated quoted string property: %s\n", (pointer) orig_s);
- return None;
-}
-
-/***====================================================================***/
-
-/*
- * return TRUE if string is a valid integer
- */
-int
-bdfIsInteger(char *str)
-{
- char c;
-
- c = *str++;
- if (!(isdigit(c) || c == '-' || c == '+'))
- return (FALSE);
-
- while ((c = *str++))
- if (!isdigit(c))
- return (FALSE);
-
- return (TRUE);
-}
-
-/***====================================================================***/
-
-/*
- * make a byte from the first two hex characters in glyph picture
- */
-
-unsigned char
-bdfHexByte(unsigned char *s)
-{
- unsigned char b = 0;
- register char c;
- int i;
-
- for (i = 2; i; i--) {
- c = *s++;
- if ((c >= '0') && (c <= '9'))
- b = (b << 4) + (c - '0');
- else if ((c >= 'A') && (c <= 'F'))
- b = (b << 4) + 10 + (c - 'A');
- else if ((c >= 'a') && (c <= 'f'))
- b = (b << 4) + 10 + (c - 'a');
- else
- bdfError("bad hex char '%c'", c);
- }
- return b;
-}
-
-/***====================================================================***/
-
-/*
- * check for known special property values
- */
-
-static char *SpecialAtoms[] = {
- "FONT_ASCENT",
-#define BDF_FONT_ASCENT 0
- "FONT_DESCENT",
-#define BDF_FONT_DESCENT 1
- "DEFAULT_CHAR",
-#define BDF_DEFAULT_CHAR 2
- "POINT_SIZE",
-#define BDF_POINT_SIZE 3
- "RESOLUTION",
-#define BDF_RESOLUTION 4
- "X_HEIGHT",
-#define BDF_X_HEIGHT 5
- "WEIGHT",
-#define BDF_WEIGHT 6
- "QUAD_WIDTH",
-#define BDF_QUAD_WIDTH 7
- "FONT",
-#define BDF_FONT 8
- "RESOLUTION_X",
-#define BDF_RESOLUTION_X 9
- "RESOLUTION_Y",
-#define BDF_RESOLUTION_Y 10
- 0,
-};
-
-Bool
-bdfSpecialProperty(FontPtr pFont, FontPropPtr prop,
- char isString, bdfFileState *bdfState)
-{
- char **special;
- char *name;
-
- name = NameForAtom(prop->name);
- for (special = SpecialAtoms; *special; special++)
- if (!strcmp(name, *special))
- break;
-
- switch (special - SpecialAtoms) {
- case BDF_FONT_ASCENT:
- if (!isString) {
- pFont->info.fontAscent = prop->value;
- bdfState->haveFontAscent = TRUE;
- }
- return TRUE;
- case BDF_FONT_DESCENT:
- if (!isString) {
- pFont->info.fontDescent = prop->value;
- bdfState->haveFontDescent = TRUE;
- }
- return TRUE;
- case BDF_DEFAULT_CHAR:
- if (!isString) {
- pFont->info.defaultCh = prop->value;
- bdfState->haveDefaultCh = TRUE;
- }
- return TRUE;
- case BDF_POINT_SIZE:
- bdfState->pointSizeProp = prop;
- return FALSE;
- case BDF_RESOLUTION:
- bdfState->resolutionProp = prop;
- return FALSE;
- case BDF_X_HEIGHT:
- bdfState->xHeightProp = prop;
- return FALSE;
- case BDF_WEIGHT:
- bdfState->weightProp = prop;
- return FALSE;
- case BDF_QUAD_WIDTH:
- bdfState->quadWidthProp = prop;
- return FALSE;
- case BDF_FONT:
- bdfState->fontProp = prop;
- return FALSE;
- case BDF_RESOLUTION_X:
- bdfState->resolutionXProp = prop;
- return FALSE;
- case BDF_RESOLUTION_Y:
- bdfState->resolutionYProp = prop;
- return FALSE;
- default:
- return FALSE;
- }
-}
+/************************************************************************ +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 <stdio.h> +#include <stdarg.h> + +#include <X11/fonts/fntfilst.h> +#include <X11/fonts/fontstruct.h> +/* use bitmap structure */ +#include <X11/fonts/bitmap.h> +#include <X11/fonts/bdfint.h> + +int bdfFileLineNum; + +/***====================================================================***/ + +void +bdfError(char* message, ...) +{ + va_list args; + + va_start (args, message); + fprintf(stderr, "BDF Error on line %d: ", bdfFileLineNum); + vfprintf(stderr, message, args); + va_end (args); +} + +/***====================================================================***/ + +void +bdfWarning(char *message, ...) +{ + va_list args; + + va_start (args, message); + fprintf(stderr, "BDF Warning on line %d: ", bdfFileLineNum); + vfprintf(stderr, message, args); + va_end (args); +} + +/* + * read the next (non-comment) line and keep a count for error messages. + * Returns buf, or NULL if EOF. + */ + +unsigned char * +bdfGetLine(FontFilePtr file, unsigned char *buf, int len) +{ + int c; + unsigned char *b; + + for (;;) { + b = buf; + while ((c = FontFileGetc(file)) != FontFileEOF) { + if (c == '\r') + continue; + if (c == '\n') { + bdfFileLineNum++; + break; + } + if (b - buf >= (len - 1)) + break; + *b++ = c; + } + *b = '\0'; + if (c == FontFileEOF) + return NULL; + if (b != buf && !bdfIsPrefix(buf, "COMMENT")) + break; + } + return buf; +} + +/***====================================================================***/ + +Atom +bdfForceMakeAtom(char *str, int *size) +{ + register int len = strlen(str); + Atom the_atom; + + if (size != NULL) + *size += len + 1; + the_atom = MakeAtom(str, len, TRUE); + if (the_atom == None) + bdfError("Atom allocation failed\n"); + return the_atom; +} + +/***====================================================================***/ + +/* + * Handle quoted strings. + */ + +Atom +bdfGetPropertyValue(char *s) +{ + register char *p, + *pp; + char *orig_s = s; + Atom atom; + + /* strip leading white space */ + while (*s && (*s == ' ' || *s == '\t')) + s++; + if (*s == 0) { + return bdfForceMakeAtom(s, NULL); + } + if (*s != '"') { + pp = s; + /* no white space in value */ + for (pp = s; *pp; pp++) + if (*pp == ' ' || *pp == '\t' || *pp == '\015' || *pp == '\n') { + *pp = 0; + break; + } + return bdfForceMakeAtom(s, NULL); + } + /* quoted string: strip outer quotes and undouble inner quotes */ + s++; + pp = p = malloc((unsigned) strlen(s) + 1); + if (pp == NULL) { + bdfError("Couldn't allocate property value string (%d)\n", strlen(s) + 1); + return None; + } + while (*s) { + if (*s == '"') { + if (*(s + 1) != '"') { + *p++ = 0; + atom = bdfForceMakeAtom(pp, NULL); + free(pp); + return atom; + } else { + s++; + } + } + *p++ = *s++; + } + free (pp); + bdfError("unterminated quoted string property: %s\n", (pointer) orig_s); + return None; +} + +/***====================================================================***/ + +/* + * return TRUE if string is a valid integer + */ +int +bdfIsInteger(char *str) +{ + char c; + + c = *str++; + if (!(isdigit(c) || c == '-' || c == '+')) + return (FALSE); + + while ((c = *str++)) + if (!isdigit(c)) + return (FALSE); + + return (TRUE); +} + +/***====================================================================***/ + +/* + * make a byte from the first two hex characters in glyph picture + */ + +unsigned char +bdfHexByte(unsigned char *s) +{ + unsigned char b = 0; + register char c; + int i; + + for (i = 2; i; i--) { + c = *s++; + if ((c >= '0') && (c <= '9')) + b = (b << 4) + (c - '0'); + else if ((c >= 'A') && (c <= 'F')) + b = (b << 4) + 10 + (c - 'A'); + else if ((c >= 'a') && (c <= 'f')) + b = (b << 4) + 10 + (c - 'a'); + else + bdfError("bad hex char '%c'", c); + } + return b; +} + +/***====================================================================***/ + +/* + * check for known special property values + */ + +static char *SpecialAtoms[] = { + "FONT_ASCENT", +#define BDF_FONT_ASCENT 0 + "FONT_DESCENT", +#define BDF_FONT_DESCENT 1 + "DEFAULT_CHAR", +#define BDF_DEFAULT_CHAR 2 + "POINT_SIZE", +#define BDF_POINT_SIZE 3 + "RESOLUTION", +#define BDF_RESOLUTION 4 + "X_HEIGHT", +#define BDF_X_HEIGHT 5 + "WEIGHT", +#define BDF_WEIGHT 6 + "QUAD_WIDTH", +#define BDF_QUAD_WIDTH 7 + "FONT", +#define BDF_FONT 8 + "RESOLUTION_X", +#define BDF_RESOLUTION_X 9 + "RESOLUTION_Y", +#define BDF_RESOLUTION_Y 10 + 0, +}; + +Bool +bdfSpecialProperty(FontPtr pFont, FontPropPtr prop, + char isString, bdfFileState *bdfState) +{ + char **special; + char *name; + + name = NameForAtom(prop->name); + for (special = SpecialAtoms; *special; special++) + if (!strcmp(name, *special)) + break; + + switch (special - SpecialAtoms) { + case BDF_FONT_ASCENT: + if (!isString) { + pFont->info.fontAscent = prop->value; + bdfState->haveFontAscent = TRUE; + } + return TRUE; + case BDF_FONT_DESCENT: + if (!isString) { + pFont->info.fontDescent = prop->value; + bdfState->haveFontDescent = TRUE; + } + return TRUE; + case BDF_DEFAULT_CHAR: + if (!isString) { + pFont->info.defaultCh = prop->value; + bdfState->haveDefaultCh = TRUE; + } + return TRUE; + case BDF_POINT_SIZE: + bdfState->pointSizeProp = prop; + return FALSE; + case BDF_RESOLUTION: + bdfState->resolutionProp = prop; + return FALSE; + case BDF_X_HEIGHT: + bdfState->xHeightProp = prop; + return FALSE; + case BDF_WEIGHT: + bdfState->weightProp = prop; + return FALSE; + case BDF_QUAD_WIDTH: + bdfState->quadWidthProp = prop; + return FALSE; + case BDF_FONT: + bdfState->fontProp = prop; + return FALSE; + case BDF_RESOLUTION_X: + bdfState->resolutionXProp = prop; + return FALSE; + case BDF_RESOLUTION_Y: + bdfState->resolutionYProp = prop; + return FALSE; + default: + return FALSE; + } +} diff --git a/libXfont/src/bitmap/bitmap.c b/libXfont/src/bitmap/bitmap.c index f837deafd..1ceb4bb17 100644 --- a/libXfont/src/bitmap/bitmap.c +++ b/libXfont/src/bitmap/bitmap.c @@ -1,157 +1,157 @@ -/*
-
-Copyright 1991, 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.
-
-*/
-
-/*
- * Author: Keith Packard, MIT X Consortium
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <X11/fonts/fntfilst.h>
-#include <X11/fonts/bitmap.h>
-
-int
-bitmapGetGlyphs(FontPtr pFont, unsigned long count, unsigned char *chars,
- FontEncoding charEncoding,
- unsigned long *glyphCount, /* RETURN */
- CharInfoPtr *glyphs) /* RETURN */
-{
- BitmapFontPtr bitmapFont;
- unsigned int firstCol;
- register unsigned int numCols;
- unsigned int firstRow;
- unsigned int numRows;
- CharInfoPtr *glyphsBase;
- register unsigned int c;
- register CharInfoPtr pci;
- unsigned int r;
- CharInfoPtr **encoding;
- CharInfoPtr pDefault;
-
- bitmapFont = (BitmapFontPtr) pFont->fontPrivate;
- encoding = bitmapFont->encoding;
- pDefault = bitmapFont->pDefault;
- firstCol = pFont->info.firstCol;
- numCols = pFont->info.lastCol - firstCol + 1;
- glyphsBase = glyphs;
- switch (charEncoding) {
-
- case Linear8Bit:
- case TwoD8Bit:
- if (pFont->info.firstRow > 0)
- break;
- if (pFont->info.allExist && pDefault) {
- while (count--) {
- c = (*chars++) - firstCol;
- if (c < numCols)
- *glyphs++ = ACCESSENCODING(encoding,c);
- else
- *glyphs++ = pDefault;
- }
- } else {
- while (count--) {
- c = (*chars++) - firstCol;
- if (c < numCols && (pci = ACCESSENCODING(encoding,c)))
- *glyphs++ = pci;
- else if (pDefault)
- *glyphs++ = pDefault;
- }
- }
- break;
- case Linear16Bit:
- if (pFont->info.allExist && pDefault) {
- while (count--) {
- c = *chars++ << 8;
- c = (c | *chars++) - firstCol;
- if (c < numCols)
- *glyphs++ = ACCESSENCODING(encoding,c);
- else
- *glyphs++ = pDefault;
- }
- } else {
- while (count--) {
- c = *chars++ << 8;
- c = (c | *chars++) - firstCol;
- if (c < numCols && (pci = ACCESSENCODING(encoding,c)))
- *glyphs++ = pci;
- else if (pDefault)
- *glyphs++ = pDefault;
- }
- }
- break;
-
- case TwoD16Bit:
- firstRow = pFont->info.firstRow;
- numRows = pFont->info.lastRow - firstRow + 1;
- while (count--) {
- r = (*chars++) - firstRow;
- c = (*chars++) - firstCol;
- if (r < numRows && c < numCols &&
- (pci = ACCESSENCODING(encoding, r * numCols + c)))
- *glyphs++ = pci;
- else if (pDefault)
- *glyphs++ = pDefault;
- }
- break;
- }
- *glyphCount = glyphs - glyphsBase;
- return Successful;
-}
-
-static CharInfoRec nonExistantChar;
-
-int
-bitmapGetMetrics(FontPtr pFont, unsigned long count, unsigned char *chars,
- FontEncoding charEncoding,
- unsigned long *glyphCount, /* RETURN */
- xCharInfo **glyphs) /* RETURN */
-{
- int ret;
- xCharInfo *ink_metrics;
- CharInfoPtr metrics;
- BitmapFontPtr bitmapFont;
- CharInfoPtr oldDefault;
- int i;
-
- bitmapFont = (BitmapFontPtr) pFont->fontPrivate;
- oldDefault = bitmapFont->pDefault;
- bitmapFont->pDefault = &nonExistantChar;
- ret = bitmapGetGlyphs(pFont, count, chars, charEncoding, glyphCount, (CharInfoPtr *) glyphs);
- if (ret == Successful) {
- if (bitmapFont->ink_metrics) {
- metrics = bitmapFont->metrics;
- ink_metrics = bitmapFont->ink_metrics;
- for (i = 0; i < *glyphCount; i++) {
- if (glyphs[i] != (xCharInfo *) & nonExistantChar)
- glyphs[i] = ink_metrics + (((CharInfoPtr) glyphs[i]) - metrics);
- }
- }
- }
- bitmapFont->pDefault = oldDefault;
- return ret;
-}
+/* + +Copyright 1991, 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. + +*/ + +/* + * Author: Keith Packard, MIT X Consortium + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <X11/fonts/fntfilst.h> +#include <X11/fonts/bitmap.h> + +int +bitmapGetGlyphs(FontPtr pFont, unsigned long count, unsigned char *chars, + FontEncoding charEncoding, + unsigned long *glyphCount, /* RETURN */ + CharInfoPtr *glyphs) /* RETURN */ +{ + BitmapFontPtr bitmapFont; + unsigned int firstCol; + register unsigned int numCols; + unsigned int firstRow; + unsigned int numRows; + CharInfoPtr *glyphsBase; + register unsigned int c; + register CharInfoPtr pci; + unsigned int r; + CharInfoPtr **encoding; + CharInfoPtr pDefault; + + bitmapFont = (BitmapFontPtr) pFont->fontPrivate; + encoding = bitmapFont->encoding; + pDefault = bitmapFont->pDefault; + firstCol = pFont->info.firstCol; + numCols = pFont->info.lastCol - firstCol + 1; + glyphsBase = glyphs; + switch (charEncoding) { + + case Linear8Bit: + case TwoD8Bit: + if (pFont->info.firstRow > 0) + break; + if (pFont->info.allExist && pDefault) { + while (count--) { + c = (*chars++) - firstCol; + if (c < numCols) + *glyphs++ = ACCESSENCODING(encoding,c); + else + *glyphs++ = pDefault; + } + } else { + while (count--) { + c = (*chars++) - firstCol; + if (c < numCols && (pci = ACCESSENCODING(encoding,c))) + *glyphs++ = pci; + else if (pDefault) + *glyphs++ = pDefault; + } + } + break; + case Linear16Bit: + if (pFont->info.allExist && pDefault) { + while (count--) { + c = *chars++ << 8; + c = (c | *chars++) - firstCol; + if (c < numCols) + *glyphs++ = ACCESSENCODING(encoding,c); + else + *glyphs++ = pDefault; + } + } else { + while (count--) { + c = *chars++ << 8; + c = (c | *chars++) - firstCol; + if (c < numCols && (pci = ACCESSENCODING(encoding,c))) + *glyphs++ = pci; + else if (pDefault) + *glyphs++ = pDefault; + } + } + break; + + case TwoD16Bit: + firstRow = pFont->info.firstRow; + numRows = pFont->info.lastRow - firstRow + 1; + while (count--) { + r = (*chars++) - firstRow; + c = (*chars++) - firstCol; + if (r < numRows && c < numCols && + (pci = ACCESSENCODING(encoding, r * numCols + c))) + *glyphs++ = pci; + else if (pDefault) + *glyphs++ = pDefault; + } + break; + } + *glyphCount = glyphs - glyphsBase; + return Successful; +} + +static CharInfoRec nonExistantChar; + +int +bitmapGetMetrics(FontPtr pFont, unsigned long count, unsigned char *chars, + FontEncoding charEncoding, + unsigned long *glyphCount, /* RETURN */ + xCharInfo **glyphs) /* RETURN */ +{ + int ret; + xCharInfo *ink_metrics; + CharInfoPtr metrics; + BitmapFontPtr bitmapFont; + CharInfoPtr oldDefault; + int i; + + bitmapFont = (BitmapFontPtr) pFont->fontPrivate; + oldDefault = bitmapFont->pDefault; + bitmapFont->pDefault = &nonExistantChar; + ret = bitmapGetGlyphs(pFont, count, chars, charEncoding, glyphCount, (CharInfoPtr *) glyphs); + if (ret == Successful) { + if (bitmapFont->ink_metrics) { + metrics = bitmapFont->metrics; + ink_metrics = bitmapFont->ink_metrics; + for (i = 0; i < *glyphCount; i++) { + if (glyphs[i] != (xCharInfo *) & nonExistantChar) + glyphs[i] = ink_metrics + (((CharInfoPtr) glyphs[i]) - metrics); + } + } + } + bitmapFont->pDefault = oldDefault; + return ret; +} diff --git a/libXfont/src/bitmap/bitmapfunc.c b/libXfont/src/bitmap/bitmapfunc.c index b13a4c42e..653ff5d55 100644 --- a/libXfont/src/bitmap/bitmapfunc.c +++ b/libXfont/src/bitmap/bitmapfunc.c @@ -1,256 +1,256 @@ -/*
-
-Copyright 1991, 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.
-
-*/
-
-/*
- * Author: Keith Packard, MIT X Consortium
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-/*
- * Translate monolithic #defines to modular definitions
- */
-
-#ifdef PCFFORMAT
-#define XFONT_PCFFORMAT 1
-#endif
-
-#ifdef SNFFORMAT
-#define XFONT_SNFFORMAT 1
-#endif
-
-#ifdef BDFFORMAT
-#define XFONT_BDFFORMAT 1
-#endif
-
-#include <X11/fonts/fntfilst.h>
-#include <X11/fonts/bitmap.h>
-#include <X11/fonts/fontutil.h>
-#include <X11/fonts/bdfint.h>
-#include <X11/fonts/pcf.h>
-#include "snfstr.h"
-
-typedef struct _BitmapFileFunctions {
- int (*ReadFont) (FontPtr /* pFont */, FontFilePtr /* file */,
- int /* bit */, int /* byte */,
- int /* glyph */, int /* scan */);
- int (*ReadInfo) ( FontInfoPtr /* pFontInfo */,
- FontFilePtr /* file */ );
-} BitmapFileFunctionsRec, *BitmapFileFunctionsPtr;
-
-static int BitmapGetRenderIndex(FontRendererPtr renderer);
-
-/*
- * the readers[] and renderers[] arrays must be in the same order,
- * and also in the same order as scale[] and find_scale[] in bitscale.c
- *
- */
-static BitmapFileFunctionsRec readers[] = {
-#if XFONT_PCFFORMAT
- { pcfReadFont, pcfReadFontInfo} ,
- { pcfReadFont, pcfReadFontInfo} ,
-# ifdef X_GZIP_FONT_COMPRESSION
- { pcfReadFont, pcfReadFontInfo} ,
-# endif
-# ifdef X_BZIP2_FONT_COMPRESSION
- { pcfReadFont, pcfReadFontInfo} ,
-# endif
-#endif
-#if XFONT_SNFFORMAT
- { snfReadFont, snfReadFontInfo},
- { snfReadFont, snfReadFontInfo},
-# ifdef X_GZIP_FONT_COMPRESSION
- { snfReadFont, snfReadFontInfo} ,
-# endif
-# ifdef X_BZIP2_FONT_COMPRESSION
- { snfReadFont, snfReadFontInfo} ,
-# endif
-#endif
-#if XFONT_BDFFORMAT
- { bdfReadFont, bdfReadFontInfo} ,
- { bdfReadFont, bdfReadFontInfo} ,
-# ifdef X_GZIP_FONT_COMPRESSION
- { bdfReadFont, bdfReadFontInfo} ,
-# endif
-# ifdef X_BZIP2_FONT_COMPRESSION
- { bdfReadFont, bdfReadFontInfo} ,
-# endif
-#endif
- { NULL, NULL }
-};
-
-
-#define CAPABILITIES (CAP_MATRIX | CAP_CHARSUBSETTING)
-
-static int
-BitmapOpenBitmap (FontPathElementPtr fpe, FontPtr *ppFont, int flags,
- FontEntryPtr entry, char *fileName,
- fsBitmapFormat format, fsBitmapFormatMask fmask,
- FontPtr non_cachable_font) /* We don't do licensing */
-{
- FontFilePtr file;
- FontPtr pFont;
- int i;
- int ret;
- int bit,
- byte,
- glyph,
- scan,
- image;
-
- i = BitmapGetRenderIndex(entry->u.bitmap.renderer);
- file = FontFileOpen (fileName);
- if (!file)
- return BadFontName;
- if (!(pFont = CreateFontRec())) {
- fprintf(stderr, "Error: Couldn't allocate pFont (%ld)\n",
- (unsigned long)sizeof(FontRec));
- FontFileClose (file);
- return AllocError;
- }
- /* set up default values */
- FontDefaultFormat(&bit, &byte, &glyph, &scan);
- /* get any changes made from above */
- ret = CheckFSFormat(format, fmask, &bit, &byte, &scan, &glyph, &image);
-
- /* Fill in font record. Data format filled in by reader. */
- pFont->refcnt = 0;
-
- ret = (*readers[i].ReadFont) (pFont, file, bit, byte, glyph, scan);
-
- FontFileClose (file);
- if (ret != Successful) {
- free(pFont);
- } else {
- *ppFont = pFont;
- }
- return ret;
-}
-
-static int
-BitmapGetInfoBitmap (FontPathElementPtr fpe, FontInfoPtr pFontInfo,
- FontEntryPtr entry, char *fileName)
-{
- FontFilePtr file;
- int i;
- int ret;
- FontRendererPtr renderer;
-
- renderer = FontFileMatchRenderer (fileName);
- if (!renderer)
- return BadFontName;
- i = BitmapGetRenderIndex(renderer);
- file = FontFileOpen (fileName);
- if (!file)
- return BadFontName;
- ret = (*readers[i].ReadInfo) (pFontInfo, file);
- FontFileClose (file);
- return ret;
-}
-
-static FontRendererRec renderers[] = {
-#if XFONT_PCFFORMAT
- { ".pcf", 4, BitmapOpenBitmap, BitmapOpenScalable,
- BitmapGetInfoBitmap, BitmapGetInfoScalable, 0,
- CAPABILITIES },
- { ".pcf.Z", 6, BitmapOpenBitmap, BitmapOpenScalable,
- BitmapGetInfoBitmap, BitmapGetInfoScalable, 0,
- CAPABILITIES },
-# ifdef X_GZIP_FONT_COMPRESSION
- { ".pcf.gz", 7,
- BitmapOpenBitmap, BitmapOpenScalable,
- BitmapGetInfoBitmap, BitmapGetInfoScalable, 0,
- CAPABILITIES },
-# endif
-# ifdef X_BZIP2_FONT_COMPRESSION
- { ".pcf.bz2", 8,
- BitmapOpenBitmap, BitmapOpenScalable,
- BitmapGetInfoBitmap, BitmapGetInfoScalable, 0,
- CAPABILITIES },
-# endif
-#endif
-#if XFONT_SNFFORMAT
- { ".snf", 4, BitmapOpenBitmap, BitmapOpenScalable,
- BitmapGetInfoBitmap, BitmapGetInfoScalable, 0,
- CAPABILITIES },
- { ".snf.Z", 6, BitmapOpenBitmap, BitmapOpenScalable,
- BitmapGetInfoBitmap, BitmapGetInfoScalable, 0,
- CAPABILITIES },
-# ifdef X_GZIP_FONT_COMPRESSION
- { ".snf.gz", 7, BitmapOpenBitmap, BitmapOpenScalable,
- BitmapGetInfoBitmap, BitmapGetInfoScalable, 0,
- CAPABILITIES },
-# endif
-# ifdef X_BZIP2_FONT_COMPRESSION
- { ".snf.bz2", 8, BitmapOpenBitmap, BitmapOpenScalable,
- BitmapGetInfoBitmap, BitmapGetInfoScalable, 0,
- CAPABILITIES },
-# endif
-#endif
-#if XFONT_BDFFORMAT
- { ".bdf", 4, BitmapOpenBitmap, BitmapOpenScalable,
- BitmapGetInfoBitmap, BitmapGetInfoScalable, 0,
- CAPABILITIES },
- { ".bdf.Z", 6, BitmapOpenBitmap, BitmapOpenScalable,
- BitmapGetInfoBitmap, BitmapGetInfoScalable, 0,
- CAPABILITIES },
-# ifdef X_GZIP_FONT_COMPRESSION
- { ".bdf.gz", 7, BitmapOpenBitmap, BitmapOpenScalable,
- BitmapGetInfoBitmap, BitmapGetInfoScalable, 0,
- CAPABILITIES },
-# endif
-# ifdef X_BZIP2_FONT_COMPRESSION
- { ".bdf.bz2", 8, BitmapOpenBitmap, BitmapOpenScalable,
- BitmapGetInfoBitmap, BitmapGetInfoScalable, 0,
- CAPABILITIES },
-# endif
-#endif
- { NULL, 0, NULL, 0, NULL, NULL, 0, 0 }
-};
-
-#define numRenderers (sizeof renderers / sizeof renderers[0] - 1)
-
-void
-BitmapRegisterFontFileFunctions (void)
-{
- int i;
-
- for (i = 0; i < numRenderers; i++)
- FontFileRegisterRenderer (&renderers[i]);
-}
-
-/*
- * compute offset into renderers array - used to find the font reader,
- * the font info reader, and the bitmap scaling routine. All users
- * of this routine must be kept in step with the renderer array.
- */
-static int
-BitmapGetRenderIndex(FontRendererPtr renderer)
-{
- return renderer - renderers;
-}
+/* + +Copyright 1991, 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. + +*/ + +/* + * Author: Keith Packard, MIT X Consortium + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +/* + * Translate monolithic #defines to modular definitions + */ + +#ifdef PCFFORMAT +#define XFONT_PCFFORMAT 1 +#endif + +#ifdef SNFFORMAT +#define XFONT_SNFFORMAT 1 +#endif + +#ifdef BDFFORMAT +#define XFONT_BDFFORMAT 1 +#endif + +#include <X11/fonts/fntfilst.h> +#include <X11/fonts/bitmap.h> +#include <X11/fonts/fontutil.h> +#include <X11/fonts/bdfint.h> +#include <X11/fonts/pcf.h> +#include "snfstr.h" + +typedef struct _BitmapFileFunctions { + int (*ReadFont) (FontPtr /* pFont */, FontFilePtr /* file */, + int /* bit */, int /* byte */, + int /* glyph */, int /* scan */); + int (*ReadInfo) ( FontInfoPtr /* pFontInfo */, + FontFilePtr /* file */ ); +} BitmapFileFunctionsRec, *BitmapFileFunctionsPtr; + +static int BitmapGetRenderIndex(FontRendererPtr renderer); + +/* + * the readers[] and renderers[] arrays must be in the same order, + * and also in the same order as scale[] and find_scale[] in bitscale.c + * + */ +static BitmapFileFunctionsRec readers[] = { +#if XFONT_PCFFORMAT + { pcfReadFont, pcfReadFontInfo} , + { pcfReadFont, pcfReadFontInfo} , +# ifdef X_GZIP_FONT_COMPRESSION + { pcfReadFont, pcfReadFontInfo} , +# endif +# ifdef X_BZIP2_FONT_COMPRESSION + { pcfReadFont, pcfReadFontInfo} , +# endif +#endif +#if XFONT_SNFFORMAT + { snfReadFont, snfReadFontInfo}, + { snfReadFont, snfReadFontInfo}, +# ifdef X_GZIP_FONT_COMPRESSION + { snfReadFont, snfReadFontInfo} , +# endif +# ifdef X_BZIP2_FONT_COMPRESSION + { snfReadFont, snfReadFontInfo} , +# endif +#endif +#if XFONT_BDFFORMAT + { bdfReadFont, bdfReadFontInfo} , + { bdfReadFont, bdfReadFontInfo} , +# ifdef X_GZIP_FONT_COMPRESSION + { bdfReadFont, bdfReadFontInfo} , +# endif +# ifdef X_BZIP2_FONT_COMPRESSION + { bdfReadFont, bdfReadFontInfo} , +# endif +#endif + { NULL, NULL } +}; + + +#define CAPABILITIES (CAP_MATRIX | CAP_CHARSUBSETTING) + +static int +BitmapOpenBitmap (FontPathElementPtr fpe, FontPtr *ppFont, int flags, + FontEntryPtr entry, char *fileName, + fsBitmapFormat format, fsBitmapFormatMask fmask, + FontPtr non_cachable_font) /* We don't do licensing */ +{ + FontFilePtr file; + FontPtr pFont; + int i; + int ret; + int bit, + byte, + glyph, + scan, + image; + + i = BitmapGetRenderIndex(entry->u.bitmap.renderer); + file = FontFileOpen (fileName); + if (!file) + return BadFontName; + if (!(pFont = CreateFontRec())) { + fprintf(stderr, "Error: Couldn't allocate pFont (%ld)\n", + (unsigned long)sizeof(FontRec)); + FontFileClose (file); + return AllocError; + } + /* set up default values */ + FontDefaultFormat(&bit, &byte, &glyph, &scan); + /* get any changes made from above */ + ret = CheckFSFormat(format, fmask, &bit, &byte, &scan, &glyph, &image); + + /* Fill in font record. Data format filled in by reader. */ + pFont->refcnt = 0; + + ret = (*readers[i].ReadFont) (pFont, file, bit, byte, glyph, scan); + + FontFileClose (file); + if (ret != Successful) { + free(pFont); + } else { + *ppFont = pFont; + } + return ret; +} + +static int +BitmapGetInfoBitmap (FontPathElementPtr fpe, FontInfoPtr pFontInfo, + FontEntryPtr entry, char *fileName) +{ + FontFilePtr file; + int i; + int ret; + FontRendererPtr renderer; + + renderer = FontFileMatchRenderer (fileName); + if (!renderer) + return BadFontName; + i = BitmapGetRenderIndex(renderer); + file = FontFileOpen (fileName); + if (!file) + return BadFontName; + ret = (*readers[i].ReadInfo) (pFontInfo, file); + FontFileClose (file); + return ret; +} + +static FontRendererRec renderers[] = { +#if XFONT_PCFFORMAT + { ".pcf", 4, BitmapOpenBitmap, BitmapOpenScalable, + BitmapGetInfoBitmap, BitmapGetInfoScalable, 0, + CAPABILITIES }, + { ".pcf.Z", 6, BitmapOpenBitmap, BitmapOpenScalable, + BitmapGetInfoBitmap, BitmapGetInfoScalable, 0, + CAPABILITIES }, +# ifdef X_GZIP_FONT_COMPRESSION + { ".pcf.gz", 7, + BitmapOpenBitmap, BitmapOpenScalable, + BitmapGetInfoBitmap, BitmapGetInfoScalable, 0, + CAPABILITIES }, +# endif +# ifdef X_BZIP2_FONT_COMPRESSION + { ".pcf.bz2", 8, + BitmapOpenBitmap, BitmapOpenScalable, + BitmapGetInfoBitmap, BitmapGetInfoScalable, 0, + CAPABILITIES }, +# endif +#endif +#if XFONT_SNFFORMAT + { ".snf", 4, BitmapOpenBitmap, BitmapOpenScalable, + BitmapGetInfoBitmap, BitmapGetInfoScalable, 0, + CAPABILITIES }, + { ".snf.Z", 6, BitmapOpenBitmap, BitmapOpenScalable, + BitmapGetInfoBitmap, BitmapGetInfoScalable, 0, + CAPABILITIES }, +# ifdef X_GZIP_FONT_COMPRESSION + { ".snf.gz", 7, BitmapOpenBitmap, BitmapOpenScalable, + BitmapGetInfoBitmap, BitmapGetInfoScalable, 0, + CAPABILITIES }, +# endif +# ifdef X_BZIP2_FONT_COMPRESSION + { ".snf.bz2", 8, BitmapOpenBitmap, BitmapOpenScalable, + BitmapGetInfoBitmap, BitmapGetInfoScalable, 0, + CAPABILITIES }, +# endif +#endif +#if XFONT_BDFFORMAT + { ".bdf", 4, BitmapOpenBitmap, BitmapOpenScalable, + BitmapGetInfoBitmap, BitmapGetInfoScalable, 0, + CAPABILITIES }, + { ".bdf.Z", 6, BitmapOpenBitmap, BitmapOpenScalable, + BitmapGetInfoBitmap, BitmapGetInfoScalable, 0, + CAPABILITIES }, +# ifdef X_GZIP_FONT_COMPRESSION + { ".bdf.gz", 7, BitmapOpenBitmap, BitmapOpenScalable, + BitmapGetInfoBitmap, BitmapGetInfoScalable, 0, + CAPABILITIES }, +# endif +# ifdef X_BZIP2_FONT_COMPRESSION + { ".bdf.bz2", 8, BitmapOpenBitmap, BitmapOpenScalable, + BitmapGetInfoBitmap, BitmapGetInfoScalable, 0, + CAPABILITIES }, +# endif +#endif + { NULL, 0, NULL, 0, NULL, NULL, 0, 0 } +}; + +#define numRenderers (sizeof renderers / sizeof renderers[0] - 1) + +void +BitmapRegisterFontFileFunctions (void) +{ + int i; + + for (i = 0; i < numRenderers; i++) + FontFileRegisterRenderer (&renderers[i]); +} + +/* + * compute offset into renderers array - used to find the font reader, + * the font info reader, and the bitmap scaling routine. All users + * of this routine must be kept in step with the renderer array. + */ +static int +BitmapGetRenderIndex(FontRendererPtr renderer) +{ + return renderer - renderers; +} diff --git a/libXfont/src/bitmap/bitmaputil.c b/libXfont/src/bitmap/bitmaputil.c index c44bf9cae..7ac94b3fb 100644 --- a/libXfont/src/bitmap/bitmaputil.c +++ b/libXfont/src/bitmap/bitmaputil.c @@ -1,225 +1,225 @@ -/*
-
-Copyright 1990, 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 <X11/fonts/fntfilst.h>
-#include <X11/fonts/bitmap.h>
-#include <X11/fonts/bdfint.h>
-
-#define MAXSHORT 32767
-
-#define MINSHORT -32768
-
-static xCharInfo initMinMetrics = {
-MAXSHORT, MAXSHORT, MAXSHORT, MAXSHORT, MAXSHORT, 0xFFFF};
-static xCharInfo initMaxMetrics = {
-MINSHORT, MINSHORT, MINSHORT, MINSHORT, MINSHORT, 0x0000};
-
-#define MINMAX(field,ci) \
- if (minbounds->field > (ci)->field) \
- minbounds->field = (ci)->field; \
- if (maxbounds->field < (ci)->field) \
- maxbounds->field = (ci)->field;
-
-#define COMPUTE_MINMAX(ci) \
- if ((ci)->ascent || (ci)->descent || \
- (ci)->leftSideBearing || (ci)->rightSideBearing || \
- (ci)->characterWidth) \
- { \
- MINMAX(ascent, (ci)); \
- MINMAX(descent, (ci)); \
- MINMAX(leftSideBearing, (ci)); \
- MINMAX(rightSideBearing, (ci)); \
- MINMAX(characterWidth, (ci)); \
- }
-
-void
-bitmapComputeFontBounds(FontPtr pFont)
-{
- BitmapFontPtr bitmapFont = (BitmapFontPtr) pFont->fontPrivate;
- int nchars;
- int r,
- c;
- CharInfoPtr ci;
- int maxOverlap;
- int overlap;
- xCharInfo *minbounds,
- *maxbounds;
- int i;
- int numneg = 0, numpos = 0;
-
- if (bitmapFont->bitmapExtra) {
- minbounds = &bitmapFont->bitmapExtra->info.minbounds;
- maxbounds = &bitmapFont->bitmapExtra->info.maxbounds;
- } else {
- minbounds = &pFont->info.minbounds;
- maxbounds = &pFont->info.maxbounds;
- }
- *minbounds = initMinMetrics;
- *maxbounds = initMaxMetrics;
- maxOverlap = MINSHORT;
- nchars = bitmapFont->num_chars;
- for (i = 0, ci = bitmapFont->metrics; i < nchars; i++, ci++) {
- COMPUTE_MINMAX(&ci->metrics);
- if (ci->metrics.characterWidth < 0)
- numneg++;
- else
- numpos++;
- minbounds->attributes &= ci->metrics.attributes;
- maxbounds->attributes |= ci->metrics.attributes;
- overlap = ci->metrics.rightSideBearing - ci->metrics.characterWidth;
- if (maxOverlap < overlap)
- maxOverlap = overlap;
- }
- if (bitmapFont->bitmapExtra) {
- if (numneg > numpos)
- bitmapFont->bitmapExtra->info.drawDirection = RightToLeft;
- else
- bitmapFont->bitmapExtra->info.drawDirection = LeftToRight;
- bitmapFont->bitmapExtra->info.maxOverlap = maxOverlap;
- minbounds = &pFont->info.minbounds;
- maxbounds = &pFont->info.maxbounds;
- *minbounds = initMinMetrics;
- *maxbounds = initMaxMetrics;
- i = 0;
- maxOverlap = MINSHORT;
- for (r = pFont->info.firstRow; r <= pFont->info.lastRow; r++) {
- for (c = pFont->info.firstCol; c <= pFont->info.lastCol; c++) {
- ci = ACCESSENCODING(bitmapFont->encoding, i);
- if (ci) {
- COMPUTE_MINMAX(&ci->metrics);
- if (ci->metrics.characterWidth < 0)
- numneg++;
- else
- numpos++;
- minbounds->attributes &= ci->metrics.attributes;
- maxbounds->attributes |= ci->metrics.attributes;
- overlap = ci->metrics.rightSideBearing -
- ci->metrics.characterWidth;
- if (maxOverlap < overlap)
- maxOverlap = overlap;
- }
- i++;
- }
- }
- }
- if (numneg > numpos)
- pFont->info.drawDirection = RightToLeft;
- else
- pFont->info.drawDirection = LeftToRight;
- pFont->info.maxOverlap = maxOverlap;
-}
-
-void
-bitmapComputeFontInkBounds(FontPtr pFont)
-{
- BitmapFontPtr bitmapFont = (BitmapFontPtr) pFont->fontPrivate;
- int nchars;
- int r,
- c;
- CharInfoPtr cit;
- xCharInfo *ci;
- int offset;
- xCharInfo *minbounds,
- *maxbounds;
- int i;
-
- if (!bitmapFont->ink_metrics) {
- if (bitmapFont->bitmapExtra) {
- bitmapFont->bitmapExtra->info.ink_minbounds = bitmapFont->bitmapExtra->info.minbounds;
- bitmapFont->bitmapExtra->info.ink_maxbounds = bitmapFont->bitmapExtra->info.maxbounds;
- }
- pFont->info.ink_minbounds = pFont->info.minbounds;
- pFont->info.ink_maxbounds = pFont->info.maxbounds;
- } else {
- if (bitmapFont->bitmapExtra) {
- minbounds = &bitmapFont->bitmapExtra->info.ink_minbounds;
- maxbounds = &bitmapFont->bitmapExtra->info.ink_maxbounds;
- } else {
- minbounds = &pFont->info.ink_minbounds;
- maxbounds = &pFont->info.ink_maxbounds;
- }
- *minbounds = initMinMetrics;
- *maxbounds = initMaxMetrics;
- nchars = bitmapFont->num_chars;
- for (i = 0, ci = bitmapFont->ink_metrics; i < nchars; i++, ci++) {
- COMPUTE_MINMAX(ci);
- minbounds->attributes &= ci->attributes;
- maxbounds->attributes |= ci->attributes;
- }
- if (bitmapFont->bitmapExtra) {
- minbounds = &pFont->info.ink_minbounds;
- maxbounds = &pFont->info.ink_maxbounds;
- *minbounds = initMinMetrics;
- *maxbounds = initMaxMetrics;
- i=0;
- for (r = pFont->info.firstRow; r <= pFont->info.lastRow; r++) {
- for (c = pFont->info.firstCol; c <= pFont->info.lastCol; c++) {
- cit = ACCESSENCODING(bitmapFont->encoding, i);
- if (cit) {
- offset = cit - bitmapFont->metrics;
- ci = &bitmapFont->ink_metrics[offset];
- COMPUTE_MINMAX(ci);
- minbounds->attributes &= ci->attributes;
- maxbounds->attributes |= ci->attributes;
- }
- i++;
- }
- }
- }
- }
-}
-
-Bool
-bitmapAddInkMetrics(FontPtr pFont)
-{
- BitmapFontPtr bitmapFont;
- int i;
-
- bitmapFont = (BitmapFontPtr) pFont->fontPrivate;
- bitmapFont->ink_metrics = malloc(bitmapFont->num_chars * sizeof(xCharInfo));
- if (!bitmapFont->ink_metrics) {
- fprintf(stderr, "Error: Couldn't allocate ink_metrics (%d*%ld)\n",
- bitmapFont->num_chars, (unsigned long)sizeof(xCharInfo));
- return FALSE;
- }
- for (i = 0; i < bitmapFont->num_chars; i++)
- FontCharInkMetrics(pFont, &bitmapFont->metrics[i], &bitmapFont->ink_metrics[i]);
- pFont->info.inkMetrics = TRUE;
- return TRUE;
-}
-
-/* ARGSUSED */
-int
-bitmapComputeWeight(FontPtr pFont)
-{
- return 10;
-}
+/* + +Copyright 1990, 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 <X11/fonts/fntfilst.h> +#include <X11/fonts/bitmap.h> +#include <X11/fonts/bdfint.h> + +#define MAXSHORT 32767 + +#define MINSHORT -32768 + +static xCharInfo initMinMetrics = { +MAXSHORT, MAXSHORT, MAXSHORT, MAXSHORT, MAXSHORT, 0xFFFF}; +static xCharInfo initMaxMetrics = { +MINSHORT, MINSHORT, MINSHORT, MINSHORT, MINSHORT, 0x0000}; + +#define MINMAX(field,ci) \ + if (minbounds->field > (ci)->field) \ + minbounds->field = (ci)->field; \ + if (maxbounds->field < (ci)->field) \ + maxbounds->field = (ci)->field; + +#define COMPUTE_MINMAX(ci) \ + if ((ci)->ascent || (ci)->descent || \ + (ci)->leftSideBearing || (ci)->rightSideBearing || \ + (ci)->characterWidth) \ + { \ + MINMAX(ascent, (ci)); \ + MINMAX(descent, (ci)); \ + MINMAX(leftSideBearing, (ci)); \ + MINMAX(rightSideBearing, (ci)); \ + MINMAX(characterWidth, (ci)); \ + } + +void +bitmapComputeFontBounds(FontPtr pFont) +{ + BitmapFontPtr bitmapFont = (BitmapFontPtr) pFont->fontPrivate; + int nchars; + int r, + c; + CharInfoPtr ci; + int maxOverlap; + int overlap; + xCharInfo *minbounds, + *maxbounds; + int i; + int numneg = 0, numpos = 0; + + if (bitmapFont->bitmapExtra) { + minbounds = &bitmapFont->bitmapExtra->info.minbounds; + maxbounds = &bitmapFont->bitmapExtra->info.maxbounds; + } else { + minbounds = &pFont->info.minbounds; + maxbounds = &pFont->info.maxbounds; + } + *minbounds = initMinMetrics; + *maxbounds = initMaxMetrics; + maxOverlap = MINSHORT; + nchars = bitmapFont->num_chars; + for (i = 0, ci = bitmapFont->metrics; i < nchars; i++, ci++) { + COMPUTE_MINMAX(&ci->metrics); + if (ci->metrics.characterWidth < 0) + numneg++; + else + numpos++; + minbounds->attributes &= ci->metrics.attributes; + maxbounds->attributes |= ci->metrics.attributes; + overlap = ci->metrics.rightSideBearing - ci->metrics.characterWidth; + if (maxOverlap < overlap) + maxOverlap = overlap; + } + if (bitmapFont->bitmapExtra) { + if (numneg > numpos) + bitmapFont->bitmapExtra->info.drawDirection = RightToLeft; + else + bitmapFont->bitmapExtra->info.drawDirection = LeftToRight; + bitmapFont->bitmapExtra->info.maxOverlap = maxOverlap; + minbounds = &pFont->info.minbounds; + maxbounds = &pFont->info.maxbounds; + *minbounds = initMinMetrics; + *maxbounds = initMaxMetrics; + i = 0; + maxOverlap = MINSHORT; + for (r = pFont->info.firstRow; r <= pFont->info.lastRow; r++) { + for (c = pFont->info.firstCol; c <= pFont->info.lastCol; c++) { + ci = ACCESSENCODING(bitmapFont->encoding, i); + if (ci) { + COMPUTE_MINMAX(&ci->metrics); + if (ci->metrics.characterWidth < 0) + numneg++; + else + numpos++; + minbounds->attributes &= ci->metrics.attributes; + maxbounds->attributes |= ci->metrics.attributes; + overlap = ci->metrics.rightSideBearing - + ci->metrics.characterWidth; + if (maxOverlap < overlap) + maxOverlap = overlap; + } + i++; + } + } + } + if (numneg > numpos) + pFont->info.drawDirection = RightToLeft; + else + pFont->info.drawDirection = LeftToRight; + pFont->info.maxOverlap = maxOverlap; +} + +void +bitmapComputeFontInkBounds(FontPtr pFont) +{ + BitmapFontPtr bitmapFont = (BitmapFontPtr) pFont->fontPrivate; + int nchars; + int r, + c; + CharInfoPtr cit; + xCharInfo *ci; + int offset; + xCharInfo *minbounds, + *maxbounds; + int i; + + if (!bitmapFont->ink_metrics) { + if (bitmapFont->bitmapExtra) { + bitmapFont->bitmapExtra->info.ink_minbounds = bitmapFont->bitmapExtra->info.minbounds; + bitmapFont->bitmapExtra->info.ink_maxbounds = bitmapFont->bitmapExtra->info.maxbounds; + } + pFont->info.ink_minbounds = pFont->info.minbounds; + pFont->info.ink_maxbounds = pFont->info.maxbounds; + } else { + if (bitmapFont->bitmapExtra) { + minbounds = &bitmapFont->bitmapExtra->info.ink_minbounds; + maxbounds = &bitmapFont->bitmapExtra->info.ink_maxbounds; + } else { + minbounds = &pFont->info.ink_minbounds; + maxbounds = &pFont->info.ink_maxbounds; + } + *minbounds = initMinMetrics; + *maxbounds = initMaxMetrics; + nchars = bitmapFont->num_chars; + for (i = 0, ci = bitmapFont->ink_metrics; i < nchars; i++, ci++) { + COMPUTE_MINMAX(ci); + minbounds->attributes &= ci->attributes; + maxbounds->attributes |= ci->attributes; + } + if (bitmapFont->bitmapExtra) { + minbounds = &pFont->info.ink_minbounds; + maxbounds = &pFont->info.ink_maxbounds; + *minbounds = initMinMetrics; + *maxbounds = initMaxMetrics; + i=0; + for (r = pFont->info.firstRow; r <= pFont->info.lastRow; r++) { + for (c = pFont->info.firstCol; c <= pFont->info.lastCol; c++) { + cit = ACCESSENCODING(bitmapFont->encoding, i); + if (cit) { + offset = cit - bitmapFont->metrics; + ci = &bitmapFont->ink_metrics[offset]; + COMPUTE_MINMAX(ci); + minbounds->attributes &= ci->attributes; + maxbounds->attributes |= ci->attributes; + } + i++; + } + } + } + } +} + +Bool +bitmapAddInkMetrics(FontPtr pFont) +{ + BitmapFontPtr bitmapFont; + int i; + + bitmapFont = (BitmapFontPtr) pFont->fontPrivate; + bitmapFont->ink_metrics = malloc(bitmapFont->num_chars * sizeof(xCharInfo)); + if (!bitmapFont->ink_metrics) { + fprintf(stderr, "Error: Couldn't allocate ink_metrics (%d*%ld)\n", + bitmapFont->num_chars, (unsigned long)sizeof(xCharInfo)); + return FALSE; + } + for (i = 0; i < bitmapFont->num_chars; i++) + FontCharInkMetrics(pFont, &bitmapFont->metrics[i], &bitmapFont->ink_metrics[i]); + pFont->info.inkMetrics = TRUE; + return TRUE; +} + +/* ARGSUSED */ +int +bitmapComputeWeight(FontPtr pFont) +{ + return 10; +} diff --git a/libXfont/src/bitmap/bitscale.c b/libXfont/src/bitmap/bitscale.c index a80f375a0..446a94187 100644 --- a/libXfont/src/bitmap/bitscale.c +++ b/libXfont/src/bitmap/bitscale.c @@ -1,1692 +1,1692 @@ -/*
-
-Copyright 1991, 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.
-
-*/
-
-/*
- * Author: Keith Packard, MIT X Consortium
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-/*
- * Translate monolithic #defines to modular definitions
- */
-
-#ifdef PCFFORMAT
-#define XFONT_PCFFORMAT 1
-#endif
-
-#ifdef SNFFORMAT
-#define XFONT_SNFFORMAT 1
-#endif
-
-#ifdef BDFFORMAT
-#define XFONT_BDFFORMAT 1
-#endif
-
-#include <X11/fonts/fntfilst.h>
-#include <X11/fonts/bitmap.h>
-#include <X11/fonts/fontutil.h>
-#include <math.h>
-
-#ifndef MAX
-#define MAX(a,b) (((a)>(b)) ? a : b)
-#endif
-
-#ifdef _MSC_VER
-#define hypot _hypot
-#endif
-
-/* Should get this from elsewhere */
-extern unsigned long serverGeneration;
-
-static void bitmapUnloadScalable (FontPtr pFont);
-static void ScaleBitmap ( FontPtr pFont, CharInfoPtr opci,
- CharInfoPtr pci, double *inv_xform,
- double widthMult, double heightMult );
-static FontPtr BitmapScaleBitmaps(FontPtr pf, FontPtr opf,
- double widthMult, double heightMult,
- FontScalablePtr vals);
-
-enum scaleType {
- atom, truncate_atom, pixel_size, point_size, resolution_x,
- resolution_y, average_width, scaledX, scaledY, unscaled, fontname,
- raw_ascent, raw_descent, raw_pixelsize, raw_pointsize,
- raw_average_width, uncomputed
-};
-
-typedef struct _fontProp {
- char *name;
- Atom atom;
- enum scaleType type;
-} fontProp;
-
-static FontEntryPtr FindBestToScale ( FontPathElementPtr fpe,
- FontEntryPtr entry,
- FontScalablePtr vals,
- FontScalablePtr best,
- double *dxp, double *dyp,
- double *sdxp, double *sdyp,
- FontPathElementPtr *fpep );
-
-static unsigned long bitscaleGeneration = 0; /* initialization flag */
-
-static fontProp fontNamePropTable[] = {
- { "FOUNDRY", 0, atom },
- { "FAMILY_NAME", 0, atom },
- { "WEIGHT_NAME", 0, atom },
- { "SLANT", 0, atom },
- { "SETWIDTH_NAME", 0, atom },
- { "ADD_STYLE_NAME", 0, atom },
- { "PIXEL_SIZE", 0, pixel_size },
- { "POINT_SIZE", 0, point_size },
- { "RESOLUTION_X", 0, resolution_x },
- { "RESOLUTION_Y", 0, resolution_y },
- { "SPACING", 0, atom },
- { "AVERAGE_WIDTH", 0, average_width },
- { "CHARSET_REGISTRY", 0, atom },
- { "CHARSET_ENCODING", 0, truncate_atom },
- { "FONT", 0, fontname },
- { "RAW_ASCENT", 0, raw_ascent },
- { "RAW_DESCENT", 0, raw_descent },
- { "RAW_PIXEL_SIZE", 0, raw_pixelsize },
- { "RAW_POINT_SIZE", 0, raw_pointsize },
- { "RAW_AVERAGE_WIDTH", 0, raw_average_width }
-};
-
-#define TRANSFORM_POINT(matrix, x, y, dest) \
- ((dest)[0] = (matrix)[0] * (x) + (matrix)[2] * (y), \
- (dest)[1] = (matrix)[1] * (x) + (matrix)[3] * (y))
-
-#define CHECK_EXTENT(lsb, rsb, desc, asc, data) \
- ((lsb) > (data)[0] ? (lsb) = (data)[0] : 0 , \
- (rsb) < (data)[0] ? (rsb) = (data)[0] : 0, \
- (-desc) > (data)[1] ? (desc) = -(data)[1] : 0 , \
- (asc) < (data)[1] ? (asc) = (data)[1] : 0)
-
-#define NPROPS (sizeof(fontNamePropTable) / sizeof(fontProp))
-
-/* Warning: order of the next two tables is critically interdependent.
- Location of "unscaled" properties at the end of fontPropTable[]
- is important. */
-
-static fontProp fontPropTable[] = {
- { "MIN_SPACE", 0, scaledX },
- { "NORM_SPACE", 0, scaledX },
- { "MAX_SPACE", 0, scaledX },
- { "END_SPACE", 0, scaledX },
- { "AVG_CAPITAL_WIDTH", 0, scaledX },
- { "AVG_LOWERCASE_WIDTH", 0, scaledX },
- { "QUAD_WIDTH", 0, scaledX },
- { "FIGURE_WIDTH", 0, scaledX },
- { "SUPERSCRIPT_X", 0, scaledX },
- { "SUPERSCRIPT_Y", 0, scaledY },
- { "SUBSCRIPT_X", 0, scaledX },
- { "SUBSCRIPT_Y", 0, scaledY },
- { "SUPERSCRIPT_SIZE", 0, scaledY },
- { "SUBSCRIPT_SIZE", 0, scaledY },
- { "SMALL_CAP_SIZE", 0, scaledY },
- { "UNDERLINE_POSITION", 0, scaledY },
- { "UNDERLINE_THICKNESS", 0, scaledY },
- { "STRIKEOUT_ASCENT", 0, scaledY },
- { "STRIKEOUT_DESCENT", 0, scaledY },
- { "CAP_HEIGHT", 0, scaledY },
- { "X_HEIGHT", 0, scaledY },
- { "ITALIC_ANGLE", 0, unscaled },
- { "RELATIVE_SETWIDTH", 0, unscaled },
- { "RELATIVE_WEIGHT", 0, unscaled },
- { "WEIGHT", 0, unscaled },
- { "DESTINATION", 0, unscaled },
- { "PCL_FONT_NAME", 0, unscaled },
- { "_ADOBE_POSTSCRIPT_FONTNAME", 0, unscaled }
-};
-
-static fontProp rawFontPropTable[] = {
- { "RAW_MIN_SPACE", 0, },
- { "RAW_NORM_SPACE", 0, },
- { "RAW_MAX_SPACE", 0, },
- { "RAW_END_SPACE", 0, },
- { "RAW_AVG_CAPITAL_WIDTH", 0, },
- { "RAW_AVG_LOWERCASE_WIDTH", 0, },
- { "RAW_QUAD_WIDTH", 0, },
- { "RAW_FIGURE_WIDTH", 0, },
- { "RAW_SUPERSCRIPT_X", 0, },
- { "RAW_SUPERSCRIPT_Y", 0, },
- { "RAW_SUBSCRIPT_X", 0, },
- { "RAW_SUBSCRIPT_Y", 0, },
- { "RAW_SUPERSCRIPT_SIZE", 0, },
- { "RAW_SUBSCRIPT_SIZE", 0, },
- { "RAW_SMALL_CAP_SIZE", 0, },
- { "RAW_UNDERLINE_POSITION", 0, },
- { "RAW_UNDERLINE_THICKNESS", 0, },
- { "RAW_STRIKEOUT_ASCENT", 0, },
- { "RAW_STRIKEOUT_DESCENT", 0, },
- { "RAW_CAP_HEIGHT", 0, },
- { "RAW_X_HEIGHT", 0, }
-};
-
-static void
-initFontPropTable(void)
-{
- int i;
- fontProp *t;
-
- i = sizeof(fontNamePropTable) / sizeof(fontProp);
- for (t = fontNamePropTable; i; i--, t++)
- t->atom = MakeAtom(t->name, (unsigned) strlen(t->name), TRUE);
-
- i = sizeof(fontPropTable) / sizeof(fontProp);
- for (t = fontPropTable; i; i--, t++)
- t->atom = MakeAtom(t->name, (unsigned) strlen(t->name), TRUE);
-
- i = sizeof(rawFontPropTable) / sizeof(fontProp);
- for (t = rawFontPropTable; i; i--, t++)
- t->atom = MakeAtom(t->name, (unsigned) strlen(t->name), TRUE);
-}
-
-#if 0
-static FontEntryPtr
-GetScalableEntry (FontPathElementPtr fpe, FontNamePtr name)
-{
- FontDirectoryPtr dir;
-
- dir = (FontDirectoryPtr) fpe->private;
- return FontFileFindNameInDir (&dir->scalable, name);
-}
-#endif
-
-static double
-get_matrix_horizontal_component(double *matrix)
-{
- return hypot(matrix[0], matrix[1]);
-}
-
-static double
-get_matrix_vertical_component(double *matrix)
-{
- return hypot(matrix[2], matrix[3]);
-}
-
-
-static Bool
-ComputeScaleFactors(FontScalablePtr from, FontScalablePtr to,
- double *dx, double *dy, double *sdx, double *sdy,
- double *rescale_x)
-{
- double srcpixelset, destpixelset, srcpixel, destpixel;
-
- srcpixelset = get_matrix_horizontal_component(from->pixel_matrix);
- destpixelset = get_matrix_horizontal_component(to->pixel_matrix);
- srcpixel = get_matrix_vertical_component(from->pixel_matrix);
- destpixel = get_matrix_vertical_component(to->pixel_matrix);
-
- if (srcpixelset >= EPS)
- {
- *dx = destpixelset / srcpixelset;
- *sdx = 1000.0 / srcpixelset;
- }
- else
- *sdx = *dx = 0;
-
- *rescale_x = 1.0;
-
- /* If client specified a width, it overrides setsize; in this
- context, we interpret width as applying to the font before any
- rotation, even though that's not what is ultimately returned in
- the width field. */
- if (from->width > 0 && to->width > 0 && fabs(*dx) > EPS)
- {
- double rescale = (double)to->width / (double)from->width;
-
- /* If the client specified a transformation matrix, the rescaling
- for width does *not* override the setsize. Instead, just check
- for consistency between the setsize from the matrix and the
- setsize that would result from rescaling according to the width.
- This assumes (perhaps naively) that the width is correctly
- reported in the name. As an interesting side effect, this test
- may result in choosing a different source bitmap (one that
- scales consistently between the setsize *and* the width) than it
- would choose if a width were not specified. Sort of a hidden
- multiple-master functionality. */
- if ((to->values_supplied & PIXELSIZE_MASK) == PIXELSIZE_ARRAY ||
- (to->values_supplied & POINTSIZE_MASK) == POINTSIZE_ARRAY)
- {
- /* Reject if resulting width difference is >= 1 pixel */
- if (fabs(rescale * from->width - *dx * from->width) >= 10)
- return FALSE;
- }
- else
- {
- *rescale_x = rescale/(*dx);
- *dx = rescale;
- }
- }
-
- if (srcpixel >= EPS)
- {
- *dy = destpixel / srcpixel;
- *sdy = 1000.0 / srcpixel;
- }
- else
- *sdy = *dy = 0;
-
- return TRUE;
-}
-
-/* favor enlargement over reduction because of aliasing resulting
- from reduction */
-#define SCORE(m,s) \
-if (m >= 1.0) { \
- if (m == 1.0) \
- score += (16 * s); \
- else if (m == 2.0) \
- score += (4 * s); \
- else \
- score += (int)(((double)(3 * s)) / m); \
-} else { \
- score += (int)(((double)(2 * s)) * m); \
-}
-
-/* don't need to favor enlargement when looking for bitmap that can
- be used unscalable */
-#define SCORE2(m,s) \
-if (m >= 1.0) \
- score += (int)(((double)(8 * s)) / m); \
-else \
- score += (int)(((double)(8 * s)) * m);
-
-static FontEntryPtr
-FindBestToScale(FontPathElementPtr fpe, FontEntryPtr entry,
- FontScalablePtr vals, FontScalablePtr best,
- double *dxp, double *dyp,
- double *sdxp, double *sdyp,
- FontPathElementPtr *fpep)
-{
- FontScalableRec temp;
- int source, i;
- int best_score, best_unscaled_score,
- score;
- double dx = 0.0, sdx = 0.0, dx_amount = 0.0,
- dy = 0.0, sdy = 0.0, dy_amount = 0.0,
- best_dx = 0.0, best_sdx = 0.0, best_dx_amount = 0.0,
- best_dy = 0.0, best_sdy = 0.0, best_dy_amount = 0.0,
- best_unscaled_sdx = 0.0, best_unscaled_sdy = 0.0,
- rescale_x = 0.0, best_rescale_x = 0.0,
- best_unscaled_rescale_x = 0.0;
- FontEntryPtr zero;
- FontNameRec zeroName;
- char zeroChars[MAXFONTNAMELEN];
- FontDirectoryPtr dir;
- FontScaledPtr scaled;
- FontScalableExtraPtr extra;
- FontScaledPtr best_scaled, best_unscaled;
- FontPathElementPtr best_fpe = NULL, best_unscaled_fpe = NULL;
- FontEntryPtr bitmap = NULL;
- FontEntryPtr result;
- int aliascount = 20;
- FontPathElementPtr bitmap_fpe = NULL;
- FontNameRec xlfdName;
-
- /* find the best match */
- rescale_x = 1.0;
- best_scaled = 0;
- best_score = 0;
- best_unscaled = 0;
- best_unscaled_score = -1;
- best_dx_amount = best_dy_amount = HUGE_VAL;
- memcpy (zeroChars, entry->name.name, entry->name.length);
- zeroChars[entry->name.length] = '\0';
- zeroName.name = zeroChars;
- FontParseXLFDName (zeroChars, &temp, FONT_XLFD_REPLACE_ZERO);
- zeroName.length = strlen (zeroChars);
- zeroName.ndashes = entry->name.ndashes;
- xlfdName.name = vals->xlfdName;
- xlfdName.length = strlen(xlfdName.name);
- xlfdName.ndashes = FontFileCountDashes(xlfdName.name, xlfdName.length);
- restart_bestscale_loop: ;
- /*
- * Look through all the registered bitmap sources for
- * the same zero name as ours; entries along that one
- * can be scaled as desired.
- */
- for (source = 0; source < FontFileBitmapSources.count; source++)
- {
- /* There might already be a bitmap that satisfies the request
- but didn't have a zero name that was found by the scalable
- font matching logic. Keep track if there is. */
- if (bitmap == NULL && vals->xlfdName != NULL)
- {
- bitmap_fpe = FontFileBitmapSources.fpe[source];
- dir = (FontDirectoryPtr) bitmap_fpe->private;
- bitmap = FontFileFindNameInDir (&dir->nonScalable, &xlfdName);
- if (bitmap && bitmap->type != FONT_ENTRY_BITMAP)
- {
- if (bitmap->type == FONT_ENTRY_ALIAS && aliascount > 0)
- {
- aliascount--;
- xlfdName.name = bitmap->u.alias.resolved;
- xlfdName.length = strlen(xlfdName.name);
- xlfdName.ndashes = FontFileCountDashes(xlfdName.name,
- xlfdName.length);
- bitmap = NULL;
- goto restart_bestscale_loop;
- }
- else
- bitmap = NULL;
- }
- }
-
- if (FontFileBitmapSources.fpe[source] == fpe)
- zero = entry;
- else
- {
- dir = (FontDirectoryPtr) FontFileBitmapSources.fpe[source]->private;
- zero = FontFileFindNameInDir (&dir->scalable, &zeroName);
- if (!zero)
- continue;
- }
- extra = zero->u.scalable.extra;
- for (i = 0; i < extra->numScaled; i++)
- {
- scaled = &extra->scaled[i];
- if (!scaled->bitmap)
- continue;
- if (!ComputeScaleFactors(&scaled->vals, vals, &dx, &dy, &sdx, &sdy,
- &rescale_x))
- continue;
- score = 0;
- dx_amount = dx;
- dy_amount = dy;
- SCORE(dy_amount, 10);
- SCORE(dx_amount, 1);
- if ((score > best_score) ||
- ((score == best_score) &&
- ((dy_amount < best_dy_amount) ||
- ((dy_amount == best_dy_amount) &&
- (dx_amount < best_dx_amount)))))
- {
- best_fpe = FontFileBitmapSources.fpe[source];
- best_scaled = scaled;
- best_score = score;
- best_dx = dx;
- best_dy = dy;
- best_sdx = sdx;
- best_sdy = sdy;
- best_dx_amount = dx_amount;
- best_dy_amount = dy_amount;
- best_rescale_x = rescale_x;
- }
- /* Is this font a candidate for use without ugly rescaling? */
- if (fabs(dx) > EPS && fabs(dy) > EPS &&
- fabs(vals->pixel_matrix[0] * rescale_x -
- scaled->vals.pixel_matrix[0]) < 1 &&
- fabs(vals->pixel_matrix[1] * rescale_x -
- scaled->vals.pixel_matrix[1]) < EPS &&
- fabs(vals->pixel_matrix[2] -
- scaled->vals.pixel_matrix[2]) < EPS &&
- fabs(vals->pixel_matrix[3] -
- scaled->vals.pixel_matrix[3]) < 1)
- {
- /* Yes. The pixel sizes are close on the diagonal and
- extremely close off the diagonal. */
- score = 0;
- SCORE2(vals->pixel_matrix[3] /
- scaled->vals.pixel_matrix[3], 10);
- SCORE2(vals->pixel_matrix[0] * rescale_x /
- scaled->vals.pixel_matrix[0], 1);
- if (score > best_unscaled_score)
- {
- best_unscaled_fpe = FontFileBitmapSources.fpe[source];
- best_unscaled = scaled;
- best_unscaled_sdx = sdx / dx;
- best_unscaled_sdy = sdy / dy;
- best_unscaled_score = score;
- best_unscaled_rescale_x = rescale_x;
- }
- }
- }
- }
- if (best_unscaled)
- {
- *best = best_unscaled->vals;
- *fpep = best_unscaled_fpe;
- *dxp = 1.0;
- *dyp = 1.0;
- *sdxp = best_unscaled_sdx;
- *sdyp = best_unscaled_sdy;
- rescale_x = best_unscaled_rescale_x;
- result = best_unscaled->bitmap;
- }
- else if (best_scaled)
- {
- *best = best_scaled->vals;
- *fpep = best_fpe;
- *dxp = best_dx;
- *dyp = best_dy;
- *sdxp = best_sdx;
- *sdyp = best_sdy;
- rescale_x = best_rescale_x;
- result = best_scaled->bitmap;
- }
- else
- result = NULL;
-
- if (bitmap != NULL && (result == NULL || *dxp != 1.0 || *dyp != 1.0))
- {
- *fpep = bitmap_fpe;
- FontParseXLFDName (bitmap->name.name, best, FONT_XLFD_REPLACE_NONE);
- if (ComputeScaleFactors(best, best, dxp, dyp, sdxp, sdyp, &rescale_x))
- result = bitmap;
- else
- result = NULL;
- }
-
- if (result && rescale_x != 1.0)
- {
- /* We have rescaled horizontally due to an XLFD width field. Change
- the matrix appropriately */
- vals->pixel_matrix[0] *= rescale_x;
- vals->pixel_matrix[1] *= rescale_x;
- vals->values_supplied = vals->values_supplied & ~POINTSIZE_MASK;
- /* Recompute and reround the FontScalablePtr values after
- rescaling for the new width. */
- FontFileCompleteXLFD(vals, vals);
- }
-
- return result;
-}
-
-static long
-doround(double x)
-{
- return (x >= 0) ? (long)(x + .5) : (long)(x - .5);
-}
-
-static int
-computeProps(FontPropPtr pf, char *wasStringProp,
- FontPropPtr npf, char *isStringProp,
- unsigned int nprops, double xfactor, double yfactor,
- double sXfactor, double sYfactor)
-{
- int n;
- int count;
- fontProp *t;
- double rawfactor = 0.0;
-
- for (count = 0; nprops > 0; nprops--, pf++, wasStringProp++) {
- n = sizeof(fontPropTable) / sizeof(fontProp);
- for (t = fontPropTable; n && (t->atom != pf->name); n--, t++);
- if (!n)
- continue;
-
- switch (t->type) {
- case scaledX:
- npf->value = doround(xfactor * (double)pf->value);
- rawfactor = sXfactor;
- break;
- case scaledY:
- npf->value = doround(yfactor * (double)pf->value);
- rawfactor = sYfactor;
- break;
- case unscaled:
- npf->value = pf->value;
- npf->name = pf->name;
- npf++;
- count++;
- *isStringProp++ = *wasStringProp;
- break;
- default:
- break;
- }
- if (t->type != unscaled)
- {
- npf->name = pf->name;
- npf++;
- count++;
- npf->value = doround(rawfactor * (double)pf->value);
- npf->name = rawFontPropTable[t - fontPropTable].atom;
- npf++;
- count++;
- *isStringProp++ = *wasStringProp;
- *isStringProp++ = *wasStringProp;
- }
- }
- return count;
-}
-
-
-static int
-ComputeScaledProperties(FontInfoPtr sourceFontInfo, /* the font to be scaled */
- char *name, /* name of resulting font */
- FontScalablePtr vals,
- double dx, double dy, /* scale factors in x and y */
- double sdx, double sdy, /* directions */
- long sWidth, /* 1000-pixel average width */
- FontPropPtr *pProps, /* returns properties;
- preallocated */
- char **pIsStringProp) /* return booleans;
- preallocated */
-{
- int n;
- char *ptr1 = NULL, *ptr2 = NULL;
- char *ptr3;
- FontPropPtr fp;
- fontProp *fpt;
- char *isStringProp;
- int nProps;
-
- if (bitscaleGeneration != serverGeneration) {
- initFontPropTable();
- bitscaleGeneration = serverGeneration;
- }
- nProps = NPROPS + 1 + sizeof(fontPropTable) / sizeof(fontProp) +
- sizeof(rawFontPropTable) / sizeof(fontProp);
- fp = malloc(sizeof(FontPropRec) * nProps);
- *pProps = fp;
- if (!fp) {
- fprintf(stderr, "Error: Couldn't allocate font properties (%ld*%d)\n",
- (unsigned long)sizeof(FontPropRec), nProps);
- return 1;
- }
- isStringProp = malloc (nProps);
- *pIsStringProp = isStringProp;
- if (!isStringProp)
- {
- fprintf(stderr, "Error: Couldn't allocate isStringProp (%d)\n", nProps);
- free (fp);
- return 1;
- }
- ptr2 = name;
- for (fpt = fontNamePropTable, n = NPROPS;
- n;
- fp++, fpt++, n--, isStringProp++)
- {
-
- if (*ptr2)
- {
- ptr1 = ptr2 + 1;
- if (!(ptr2 = strchr(ptr1, '-'))) ptr2 = strchr(ptr1, '\0');
- }
-
- *isStringProp = 0;
- switch (fpt->type) {
- case atom:
- fp->value = MakeAtom(ptr1, ptr2 - ptr1, TRUE);
- *isStringProp = 1;
- break;
- case truncate_atom:
- for (ptr3 = ptr1; *ptr3; ptr3++)
- if (*ptr3 == '[')
- break;
- if (!*ptr3) ptr3 = ptr2;
- fp->value = MakeAtom(ptr1, ptr3 - ptr1, TRUE);
- *isStringProp = 1;
- break;
- case pixel_size:
- fp->value = doround(vals->pixel_matrix[3]);
- break;
- case point_size:
- fp->value = doround(vals->point_matrix[3] * 10.0);
- break;
- case resolution_x:
- fp->value = vals->x;
- break;
- case resolution_y:
- fp->value = vals->y;
- break;
- case average_width:
- fp->value = vals->width;
- break;
- case fontname:
- fp->value = MakeAtom(name, strlen(name), TRUE);
- *isStringProp = 1;
- break;
- case raw_ascent:
- fp->value = sourceFontInfo->fontAscent * sdy;
- break;
- case raw_descent:
- fp->value = sourceFontInfo->fontDescent * sdy;
- break;
- case raw_pointsize:
- fp->value = (long)(72270.0 / (double)vals->y + .5);
- break;
- case raw_pixelsize:
- fp->value = 1000;
- break;
- case raw_average_width:
- fp->value = sWidth;
- break;
- default:
- break;
- }
- fp->name = fpt->atom;
- }
- n = NPROPS;
- n += computeProps(sourceFontInfo->props, sourceFontInfo->isStringProp,
- fp, isStringProp, sourceFontInfo->nprops, dx, dy,
- sdx, sdy);
- return n;
-}
-
-
-static int
-compute_xform_matrix(FontScalablePtr vals, double dx, double dy,
- double *xform, double *inv_xform,
- double *xmult, double *ymult)
-{
- double det;
- double pixel = get_matrix_vertical_component(vals->pixel_matrix);
- double pixelset = get_matrix_horizontal_component(vals->pixel_matrix);
-
- if (pixel < EPS || pixelset < EPS) return 0;
-
- /* Initialize the transformation matrix to the scaling factors */
- xform[0] = dx / pixelset;
- xform[1] = xform[2] = 0.0;
- xform[3] = dy / pixel;
-
-/* Inline matrix multiply -- somewhat ugly to minimize register usage */
-#define MULTIPLY_XFORM(a,b,c,d) \
-{ \
- register double aa = (a), bb = (b), cc = (c), dd = (d); \
- register double temp; \
- temp = aa * xform[0] + cc * xform[1]; \
- aa = aa * xform[2] + cc * xform[3]; \
- xform[1] = bb * xform[0] + dd * xform[1]; \
- xform[3] = bb * xform[2] + dd * xform[3]; \
- xform[0] = temp; \
- xform[2] = aa; \
-}
-
- /* Rescale the transformation matrix for size of source font */
- MULTIPLY_XFORM(vals->pixel_matrix[0],
- vals->pixel_matrix[1],
- vals->pixel_matrix[2],
- vals->pixel_matrix[3]);
-
- *xmult = xform[0];
- *ymult = xform[3];
-
-
- if (inv_xform == NULL) return 1;
-
- /* Compute the determinant for use in inverting the matrix. */
- det = xform[0] * xform[3] - xform[1] * xform[2];
-
- /* If the determinant is tiny or zero, give up */
- if (fabs(det) < EPS) return 0;
-
- /* Compute the inverse */
- inv_xform[0] = xform[3] / det;
- inv_xform[1] = -xform[1] / det;
- inv_xform[2] = -xform[2] / det;
- inv_xform[3] = xform[0] / det;
-
- return 1;
-}
-
-/*
- * ScaleFont
- * returns a pointer to the new scaled font, or NULL (due to AllocError).
- */
-static FontPtr
-ScaleFont(FontPtr opf, /* originating font */
- double widthMult, /* glyphs width scale factor */
- double heightMult, /* glyphs height scale factor */
- double sWidthMult, /* scalable glyphs width scale factor */
- double sHeightMult, /* scalable glyphs height scale factor */
- FontScalablePtr vals,
- double *newWidthMult, /* return: X component of glyphs width
- scale factor */
- double *newHeightMult, /* return: Y component of glyphs height
- scale factor */
- long *sWidth) /* return: average 1000-pixel width */
-{
- FontPtr pf;
- FontInfoPtr pfi,
- opfi;
- BitmapFontPtr bitmapFont,
- obitmapFont;
- CharInfoPtr pci,
- opci;
- int nchars = 0; /* how many characters in the font */
- int i;
- int firstCol, lastCol, firstRow, lastRow;
- double xform[4], inv_xform[4];
- double xmult, ymult;
- int totalwidth = 0, totalchars = 0;
-#define OLDINDEX(i) (((i)/(lastCol - firstCol + 1) + \
- firstRow - opf->info.firstRow) * \
- (opf->info.lastCol - opf->info.firstCol + 1) + \
- (i)%(lastCol - firstCol + 1) + \
- firstCol - opf->info.firstCol)
-
- *sWidth = 0;
-
- opfi = &opf->info;
- obitmapFont = (BitmapFontPtr) opf->fontPrivate;
-
- bitmapFont = 0;
- if (!(pf = CreateFontRec())) {
- fprintf(stderr, "Error: Couldn't allocate FontRec (%ld)\n",
- (unsigned long)sizeof(FontRec));
- goto bail;
- }
- pf->refcnt = 0;
- pf->bit = opf->bit;
- pf->byte = opf->byte;
- pf->glyph = opf->glyph;
- pf->scan = opf->scan;
-
- pf->get_glyphs = bitmapGetGlyphs;
- pf->get_metrics = bitmapGetMetrics;
- pf->unload_font = bitmapUnloadScalable;
- pf->unload_glyphs = NULL;
-
- pfi = &pf->info;
- *pfi = *opfi;
- /* If charset subsetting specified in vals, determine what our range
- needs to be for the output font */
- if (vals->nranges)
- {
- int i;
-
- pfi->allExist = 0;
- firstCol = 255;
- lastCol = 0;
- firstRow = 255;
- lastRow = 0;
-
- for (i = 0; i < vals->nranges; i++)
- {
- if (vals->ranges[i].min_char_high != vals->ranges[i].max_char_high)
- {
- firstCol = opfi->firstCol;
- lastCol = opfi->lastCol;
- }
- if (firstCol > vals->ranges[i].min_char_low)
- firstCol = vals->ranges[i].min_char_low;
- if (lastCol < vals->ranges[i].max_char_low)
- lastCol = vals->ranges[i].max_char_low;
- if (firstRow > vals->ranges[i].min_char_high)
- firstRow = vals->ranges[i].min_char_high;
- if (lastRow < vals->ranges[i].max_char_high)
- lastRow = vals->ranges[i].max_char_high;
- }
-
- if (firstCol > lastCol || firstRow > lastRow)
- goto bail;
-
- if (firstCol < opfi->firstCol)
- firstCol = opfi->firstCol;
- if (lastCol > opfi->lastCol)
- lastCol = opfi->lastCol;
- if (firstRow < opfi->firstRow)
- firstRow = opfi->firstRow;
- if (lastRow > opfi->lastRow)
- lastRow = opfi->lastRow;
- }
- else
- {
- firstCol = opfi->firstCol;
- lastCol = opfi->lastCol;
- firstRow = opfi->firstRow;
- lastRow = opfi->lastRow;
- }
-
- bitmapFont = malloc(sizeof(BitmapFontRec));
- if (!bitmapFont) {
- fprintf(stderr, "Error: Couldn't allocate bitmapFont (%ld)\n",
- (unsigned long)sizeof(BitmapFontRec));
- goto bail;
- }
- nchars = (lastRow - firstRow + 1) * (lastCol - firstCol + 1);
- pfi->firstRow = firstRow;
- pfi->lastRow = lastRow;
- pfi->firstCol = firstCol;
- pfi->lastCol = lastCol;
- pf->fontPrivate = (pointer) bitmapFont;
- bitmapFont->version_num = obitmapFont->version_num;
- bitmapFont->num_chars = nchars;
- bitmapFont->num_tables = obitmapFont->num_tables;
- bitmapFont->metrics = 0;
- bitmapFont->ink_metrics = 0;
- bitmapFont->bitmaps = 0;
- bitmapFont->encoding = 0;
- bitmapFont->bitmapExtra = 0;
- bitmapFont->pDefault = 0;
- bitmapFont->metrics = malloc(nchars * sizeof(CharInfoRec));
- if (!bitmapFont->metrics) {
- fprintf(stderr, "Error: Couldn't allocate metrics (%d*%ld)\n",
- nchars, (unsigned long)sizeof(CharInfoRec));
- goto bail;
- }
- bitmapFont->encoding = calloc(NUM_SEGMENTS(nchars), sizeof(CharInfoPtr*));
- if (!bitmapFont->encoding) {
- fprintf(stderr, "Error: Couldn't allocate encoding (%d*%ld)\n",
- nchars, (unsigned long)sizeof(CharInfoPtr));
- goto bail;
- }
-
-#undef MAXSHORT
-#define MAXSHORT 32767
-#undef MINSHORT
-#define MINSHORT -32768
-
- pfi->anamorphic = FALSE;
- if (heightMult != widthMult)
- pfi->anamorphic = TRUE;
- pfi->cachable = TRUE;
-
- if (!compute_xform_matrix(vals, widthMult, heightMult, xform,
- inv_xform, &xmult, &ymult))
- goto bail;
-
- pfi->fontAscent = opfi->fontAscent * ymult;
- pfi->fontDescent = opfi->fontDescent * ymult;
-
- pfi->minbounds.leftSideBearing = MAXSHORT;
- pfi->minbounds.rightSideBearing = MAXSHORT;
- pfi->minbounds.ascent = MAXSHORT;
- pfi->minbounds.descent = MAXSHORT;
- pfi->minbounds.characterWidth = MAXSHORT;
- pfi->minbounds.attributes = MAXSHORT;
-
- pfi->maxbounds.leftSideBearing = MINSHORT;
- pfi->maxbounds.rightSideBearing = MINSHORT;
- pfi->maxbounds.ascent = MINSHORT;
- pfi->maxbounds.descent = MINSHORT;
- pfi->maxbounds.characterWidth = MINSHORT;
- pfi->maxbounds.attributes = MINSHORT;
-
- /* Compute the transformation and inverse transformation matrices.
- Can fail if the determinant is zero. */
-
- pci = bitmapFont->metrics;
- for (i = 0; i < nchars; i++)
- {
- if ((opci = ACCESSENCODING(obitmapFont->encoding,OLDINDEX(i))))
- {
- double newlsb, newrsb, newdesc, newasc, point[2];
-
-#define minchar(p) ((p).min_char_low + ((p).min_char_high << 8))
-#define maxchar(p) ((p).max_char_low + ((p).max_char_high << 8))
-
- if (vals->nranges)
- {
- int row = i / (lastCol - firstCol + 1) + firstRow;
- int col = i % (lastCol - firstCol + 1) + firstCol;
- int ch = (row << 8) + col;
- int j;
- for (j = 0; j < vals->nranges; j++)
- if (ch >= minchar(vals->ranges[j]) &&
- ch <= maxchar(vals->ranges[j]))
- break;
- if (j == vals->nranges)
- {
- continue;
- }
- }
-
- if (opci->metrics.leftSideBearing == 0 &&
- opci->metrics.rightSideBearing == 0 &&
- opci->metrics.ascent == 0 &&
- opci->metrics.descent == 0 &&
- opci->metrics.characterWidth == 0)
- {
- continue;
- }
-
- if(!bitmapFont->encoding[SEGMENT_MAJOR(i)]) {
- bitmapFont->encoding[SEGMENT_MAJOR(i)]=
- calloc(BITMAP_FONT_SEGMENT_SIZE, sizeof(CharInfoPtr));
- if(!bitmapFont->encoding[SEGMENT_MAJOR(i)])
- goto bail;
- }
- ACCESSENCODINGL(bitmapFont->encoding, i) = pci;
-
- /* Compute new extents for this glyph */
- TRANSFORM_POINT(xform,
- opci->metrics.leftSideBearing,
- -opci->metrics.descent,
- point);
- newlsb = point[0];
- newrsb = newlsb;
- newdesc = -point[1];
- newasc = -newdesc;
- TRANSFORM_POINT(xform,
- opci->metrics.leftSideBearing,
- opci->metrics.ascent,
- point);
- CHECK_EXTENT(newlsb, newrsb, newdesc, newasc, point);
- TRANSFORM_POINT(xform,
- opci->metrics.rightSideBearing,
- -opci->metrics.descent,
- point);
- CHECK_EXTENT(newlsb, newrsb, newdesc, newasc, point);
- TRANSFORM_POINT(xform,
- opci->metrics.rightSideBearing,
- opci->metrics.ascent,
- point);
- CHECK_EXTENT(newlsb, newrsb, newdesc, newasc, point);
-
- pci->metrics.leftSideBearing = (int)floor(newlsb);
- pci->metrics.rightSideBearing = (int)floor(newrsb + .5);
- pci->metrics.descent = (int)ceil(newdesc);
- pci->metrics.ascent = (int)floor(newasc + .5);
- /* Accumulate total width of characters before transformation,
- to ascertain predominant direction of font. */
- totalwidth += opci->metrics.characterWidth;
- pci->metrics.characterWidth =
- doround((double)opci->metrics.characterWidth * xmult);
- pci->metrics.attributes =
- doround((double)opci->metrics.characterWidth * sWidthMult);
- if (!pci->metrics.characterWidth)
- {
- /* Since transformation may shrink width, height, and
- escapement to zero, make sure existing characters
- are not mistaken for undefined characters. */
-
- if (pci->metrics.rightSideBearing ==
- pci->metrics.leftSideBearing)
- pci->metrics.rightSideBearing++;
- if (pci->metrics.ascent == -pci->metrics.descent)
- pci->metrics.ascent++;
- }
-
- pci++;
- }
- }
-
-
- /*
- * For each character, set the per-character metrics, scale the glyph, and
- * check per-font minbounds and maxbounds character information.
- */
-
- pci = bitmapFont->metrics;
- for (i = 0; i < nchars; i++)
- {
- if ((pci = ACCESSENCODING(bitmapFont->encoding,i)) &&
- (opci = ACCESSENCODING(obitmapFont->encoding,OLDINDEX(i))))
- {
- totalchars++;
- *sWidth += abs((int)(INT16)pci->metrics.attributes);
-#define MINMAX(field) \
- if (pfi->minbounds.field > pci->metrics.field) \
- pfi->minbounds.field = pci->metrics.field; \
- if (pfi->maxbounds.field < pci->metrics.field) \
- pfi->maxbounds.field = pci->metrics.field
-
- MINMAX(leftSideBearing);
- MINMAX(rightSideBearing);
- MINMAX(ascent);
- MINMAX(descent);
- MINMAX(characterWidth);
-
- /* Hack: Cast attributes into a signed quantity. Tread lightly
- for now and don't go changing the global Xproto.h file */
- if ((INT16)pfi->minbounds.attributes >
- (INT16)pci->metrics.attributes)
- pfi->minbounds.attributes = pci->metrics.attributes;
- if ((INT16)pfi->maxbounds.attributes <
- (INT16)pci->metrics.attributes)
- pfi->maxbounds.attributes = pci->metrics.attributes;
-#undef MINMAX
- }
- }
- pfi->ink_minbounds = pfi->minbounds;
- pfi->ink_maxbounds = pfi->maxbounds;
- if (totalchars)
- {
- *sWidth = (*sWidth * 10 + totalchars / 2) / totalchars;
- if (totalwidth < 0)
- {
- /* Dominant direction is R->L */
- *sWidth = -*sWidth;
- }
-
- if (pfi->minbounds.characterWidth == pfi->maxbounds.characterWidth)
- vals->width = pfi->minbounds.characterWidth * 10;
- else
- vals->width = doround((double)*sWidth * vals->pixel_matrix[0] /
- 1000.0);
- }
- else
- {
- vals->width = 0;
- *sWidth = 0;
- }
- FontComputeInfoAccelerators (pfi);
-
- if (pfi->defaultCh != (unsigned short) NO_SUCH_CHAR) {
- unsigned int r,
- c,
- cols;
-
- r = pfi->defaultCh >> 8;
- c = pfi->defaultCh & 0xFF;
- if (pfi->firstRow <= r && r <= pfi->lastRow &&
- pfi->firstCol <= c && c <= pfi->lastCol) {
- cols = pfi->lastCol - pfi->firstCol + 1;
- r = r - pfi->firstRow;
- c = c - pfi->firstCol;
- bitmapFont->pDefault =
- ACCESSENCODING(bitmapFont->encoding, r * cols + c);
- }
- }
-
- *newWidthMult = xmult;
- *newHeightMult = ymult;
- return pf;
-bail:
- if (pf)
- free(pf);
- if (bitmapFont) {
- free(bitmapFont->metrics);
- free(bitmapFont->ink_metrics);
- free(bitmapFont->bitmaps);
- if(bitmapFont->encoding)
- for(i=0; i<NUM_SEGMENTS(nchars); i++)
- free(bitmapFont->encoding[i]);
- free(bitmapFont->encoding);
- }
- return NULL;
-}
-
-static void
-ScaleBitmap(FontPtr pFont, CharInfoPtr opci, CharInfoPtr pci,
- double *inv_xform, double widthMult, double heightMult)
-{
- register char *bitmap, /* The bits */
- *newBitmap;
- register int bpr, /* Padding information */
- newBpr;
- int width, /* Extents information */
- height,
- newWidth,
- newHeight;
- register int row, /* Loop variables */
- col;
- INT32 deltaX, /* Increments for resampling loop */
- deltaY;
- INT32 xValue, /* Subscripts for resampling loop */
- yValue;
- double point[2];
- unsigned char *char_grayscale = 0;
- INT32 *diffusion_workspace = NULL, *thisrow = NULL,
- *nextrow = NULL, pixmult = 0;
- int box_x = 0, box_y = 0;
-
- static unsigned char masklsb[] =
- { 0x1, 0x2, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80 };
- static unsigned char maskmsb[] =
- { 0x80, 0x40, 0x20, 0x10, 0x8, 0x4, 0x2, 0x1 };
- unsigned char *mask = (pFont->bit == LSBFirst ? masklsb : maskmsb);
-
-
- bitmap = opci->bits;
- newBitmap = pci->bits;
- width = GLYPHWIDTHPIXELS(opci);
- height = GLYPHHEIGHTPIXELS(opci);
- newWidth = GLYPHWIDTHPIXELS(pci);
- newHeight = GLYPHHEIGHTPIXELS(pci);
- if (!newWidth || !newHeight || !width || !height)
- return;
-
- bpr = BYTES_PER_ROW(width, pFont->glyph);
- newBpr = BYTES_PER_ROW(newWidth, pFont->glyph);
-
- if (widthMult > 0.0 && heightMult > 0.0 &&
- (widthMult < 1.0 || heightMult < 1.0))
- {
- /* We are reducing in one or both dimensions. In an attempt to
- reduce aliasing, we'll antialias by passing the original
- glyph through a low-pass box filter (which results in a
- grayscale image), then use error diffusion to create bitonal
- output in the resampling loop. */
-
- /* First compute the sizes of the box filter */
- widthMult = ceil(1.0 / widthMult);
- heightMult = ceil(1.0 / heightMult);
- box_x = width / 2;
- box_y = height / 2;
- if (widthMult < (double)box_x) box_x = (int)widthMult;
- if (heightMult < (double)box_y) box_y = (int)heightMult;
- /* The pixmult value (below) is used to darken the image before
- we perform error diffusion: a necessary concession to the
- fact that it's very difficult to generate readable halftoned
- glyphs. The degree of darkening is proportional to the size
- of the blurring filter, hence inversely proportional to the
- darkness of the lightest gray that results from antialiasing.
- The result is that characters that exercise this logic (those
- generated by reducing from a larger source font) tend to err
- on the side of being too bold instead of being too light to
- be readable. */
- pixmult = box_x * box_y * 192;
-
- if (box_x > 1 || box_y > 1)
- {
- /* Looks like we need to anti-alias. Create a workspace to
- contain the grayscale character plus an additional row and
- column for scratch */
- char_grayscale = malloc((width + 1) * (height + 1));
- if (char_grayscale)
- {
- diffusion_workspace = calloc((newWidth + 2) * 2, sizeof(int));
- if (!diffusion_workspace)
- {
- fprintf(stderr, "Warning: Couldn't allocate diffusion"
- " workspace (%ld)\n",
- (newWidth + 2) * 2 * (unsigned long)sizeof(int));
- free(char_grayscale);
- char_grayscale = (unsigned char *)0;
- }
- /* Initialize our error diffusion workspace for later use */
- thisrow = diffusion_workspace + 1;
- nextrow = diffusion_workspace + newWidth + 3;
- } else {
- fprintf(stderr, "Warning: Couldn't allocate character grayscale (%d)\n", (width + 1) * (height + 1));
- }
- }
- }
-
- if (char_grayscale)
- {
- /* We will be doing antialiasing. First copy the bitmap into
- our buffer, mapping input range [0,1] to output range
- [0,255]. */
- register unsigned char *srcptr, *dstptr;
- srcptr = (unsigned char *)bitmap;
- dstptr = char_grayscale;
- for (row = 0; row < height; row++)
- {
- for (col = 0; col < width; col++)
- *dstptr++ = (srcptr[col >> 3] & mask[col & 0x7]) ? 255 : 0;
- srcptr += bpr; /* On to next row of source */
- dstptr++; /* Skip scratch column in dest */
- }
- if (box_x > 1)
- {
- /* Our box filter has a width > 1... let's filter the rows */
-
- int right_width = box_x / 2;
- int left_width = box_x - right_width - 1;
-
- for (row = 0; row < height; row++)
- {
- int sum = 0;
- int left_size = 0, right_size = 0;
-
- srcptr = char_grayscale + (width + 1) * row;
- dstptr = char_grayscale + (width + 1) * height; /* scratch */
-
- /* We've computed the shape of our full box filter. Now
- compute the right-hand part of the moving sum */
- for (right_size = 0; right_size < right_width; right_size++)
- sum += srcptr[right_size];
-
- /* Now start moving the sum, growing the box filter, and
- dropping averages into our scratch buffer */
- for (left_size = 0; left_size < left_width; left_size++)
- {
- sum += srcptr[right_width];
- *dstptr++ = sum / (left_size + right_width + 1);
- srcptr++;
- }
-
- /* The box filter has reached full width... continue
- computation of moving average until the right side
- hits the wall. */
- for (col = left_size; col + right_size < width; col++)
- {
- sum += srcptr[right_width];
- *dstptr++ = sum / box_x;
- sum -= srcptr[-left_width];
- srcptr++;
- }
-
- /* Collapse the right side of the box filter */
- for (; right_size > 0; right_size--)
- {
- *dstptr++ = sum / (left_width + right_size);
- sum -= srcptr[-left_width];
- srcptr++;
- }
-
- /* Done with the row... copy dest back over source */
- memmove(char_grayscale + (width + 1) * row,
- char_grayscale + (width + 1) * height,
- width);
- }
- }
- if (box_y > 1)
- {
- /* Our box filter has a height > 1... let's filter the columns */
-
- int bottom_height = box_y / 2;
- int top_height = box_y - bottom_height - 1;
-
- for (col = 0; col < width; col++)
- {
- int sum = 0;
- int top_size = 0, bottom_size = 0;
-
- srcptr = char_grayscale + col;
- dstptr = char_grayscale + width; /* scratch */
-
- /* We've computed the shape of our full box filter. Now
- compute the bottom part of the moving sum */
- for (bottom_size = 0;
- bottom_size < bottom_height;
- bottom_size++)
- sum += srcptr[bottom_size * (width + 1)];
-
- /* Now start moving the sum, growing the box filter, and
- dropping averages into our scratch buffer */
- for (top_size = 0; top_size < top_height; top_size++)
- {
- sum += srcptr[bottom_height * (width + 1)];
- *dstptr = sum / (top_size + bottom_height + 1);
- dstptr += width + 1;
- srcptr += width + 1;
- }
-
- /* The box filter has reached full height... continue
- computation of moving average until the bottom
- hits the wall. */
- for (row = top_size; row + bottom_size < height; row++)
- {
- sum += srcptr[bottom_height * (width + 1)];
- *dstptr = sum / box_y;
- dstptr += width + 1;
- sum -= srcptr[-top_height * (width + 1)];
- srcptr += width + 1;
- }
-
- /* Collapse the bottom of the box filter */
- for (; bottom_size > 0; bottom_size--)
- {
- *dstptr = sum / (top_height + bottom_size);
- dstptr += width + 1;
- sum -= srcptr[-top_height * (width + 1)];
- srcptr += width + 1;
- }
-
- /* Done with the column... copy dest back over source */
-
- dstptr = char_grayscale + col;
- srcptr = char_grayscale + width; /* scratch */
- for (row = 0; row < height; row++)
- {
- *dstptr = *srcptr;
- dstptr += width + 1;
- srcptr += width + 1;
- }
- }
- }
-
- /* Increase the grayvalue to increase ink a bit */
- srcptr = char_grayscale;
- for (row = 0; row < height; row++)
- {
- for (col = 0; col < width; col++)
- {
- register int pixvalue = (int)*srcptr * pixmult / 256;
- if (pixvalue > 255) pixvalue = 255;
- *srcptr = pixvalue;
- srcptr++;
- }
- srcptr++;
- }
- }
-
- /* Compute the increment values for the resampling loop */
- TRANSFORM_POINT(inv_xform, 1, 0, point);
- deltaX = (INT32)(point[0] * 65536.0);
- deltaY = (INT32)(-point[1] * 65536.0);
-
- /* Resampling loop: resamples original glyph for generation of new
- glyph in transformed coordinate system. */
-
- for (row = 0; row < newHeight; row++)
- {
- /* Compute inverse transformation for start of this row */
- TRANSFORM_POINT(inv_xform,
- (double)(pci->metrics.leftSideBearing) + .5,
- (double)(pci->metrics.ascent - row) - .5,
- point);
-
- /* Adjust for coordinate system to get resampling point */
- point[0] -= opci->metrics.leftSideBearing;
- point[1] = opci->metrics.ascent - point[1];
-
- /* Convert to integer coordinates */
- xValue = (INT32)(point[0] * 65536.0);
- yValue = (INT32)(point[1] * 65536.0);
-
- if (char_grayscale)
- {
- INT32 *temp;
- for (col = 0; col < newWidth; col++)
- {
- register int x = xValue >> 16, y = yValue >> 16;
- int pixvalue, error;
-
- pixvalue = ((x >= 0 && x < width && y >= 0 && y < height) ?
- char_grayscale[x + y * (width + 1)] : 0) +
- thisrow[col] / 16;
- if (pixvalue > 255) pixvalue = 255;
- else if (pixvalue < 0) pixvalue = 0;
-
- /* Choose the bit value and set resulting error value */
- if (pixvalue >= 128)
- {
- newBitmap[(col >> 3) + row * newBpr] |= mask[col & 0x7];
- error = pixvalue - 255;
- }
- else
- error = -pixvalue;
-
- /* Diffuse the error */
- thisrow[col + 1] += error * 7;
- nextrow[col - 1] += error * 3;
- nextrow[col] += error * 5;
- nextrow[col + 1] = error;
-
- xValue += deltaX;
- yValue += deltaY;
- }
-
- /* Add in error values that fell off either end */
- nextrow[0] += nextrow[-1];
- nextrow[newWidth - 2] += thisrow[newWidth];
- nextrow[newWidth - 1] += nextrow[newWidth];
- nextrow[newWidth] = 0;
-
- temp = nextrow;
- nextrow = thisrow;
- thisrow = temp;
- nextrow[-1] = nextrow[0] = 0;
- }
- else
- {
- for (col = 0; col < newWidth; col++)
- {
- register int x = xValue >> 16, y = yValue >> 16;
-
- if (x >= 0 && x < width && y >= 0 && y < height)
- {
- /* Use point-sampling for rescaling. */
-
- if (bitmap[(x >> 3) + y * bpr] & mask[x & 0x7])
- newBitmap[(col >> 3) + row * newBpr] |= mask[col & 0x7];
- }
-
- xValue += deltaX;
- yValue += deltaY;
- }
- }
- }
-
-
- if (char_grayscale)
- {
- free(char_grayscale);
- free(diffusion_workspace);
- }
-}
-
-static FontPtr
-BitmapScaleBitmaps(FontPtr pf, /* scaled font */
- FontPtr opf, /* originating font */
- double widthMult, /* glyphs width scale factor */
- double heightMult, /* glyphs height scale factor */
- FontScalablePtr vals)
-{
- register int i;
- int nchars = 0;
- char *glyphBytes;
- BitmapFontPtr bitmapFont,
- obitmapFont;
- CharInfoPtr pci,
- opci;
- FontInfoPtr pfi;
- int glyph;
- unsigned bytestoalloc = 0;
- int firstCol, lastCol, firstRow, lastRow;
-
- double xform[4], inv_xform[4];
- double xmult, ymult;
-
- bitmapFont = (BitmapFontPtr) pf->fontPrivate;
- obitmapFont = (BitmapFontPtr) opf->fontPrivate;
-
- if (!compute_xform_matrix(vals, widthMult, heightMult, xform,
- inv_xform, &xmult, &ymult))
- goto bail;
-
- pfi = &pf->info;
- firstCol = pfi->firstCol;
- lastCol = pfi->lastCol;
- firstRow = pfi->firstRow;
- lastRow = pfi->lastRow;
-
- nchars = (lastRow - firstRow + 1) * (lastCol - firstCol + 1);
- glyph = pf->glyph;
- for (i = 0; i < nchars; i++)
- {
- if ((pci = ACCESSENCODING(bitmapFont->encoding, i)))
- bytestoalloc += BYTES_FOR_GLYPH(pci, glyph);
- }
-
- /* Do we add the font malloc stuff for VALUE ADDED ? */
- /* Will need to remember to free in the Unload routine */
-
-
- bitmapFont->bitmaps = calloc(1, bytestoalloc);
- if (!bitmapFont->bitmaps) {
- fprintf(stderr, "Error: Couldn't allocate bitmaps (%d)\n", bytestoalloc);
- goto bail;
- }
-
- glyphBytes = bitmapFont->bitmaps;
- for (i = 0; i < nchars; i++)
- {
- if ((pci = ACCESSENCODING(bitmapFont->encoding, i)) &&
- (opci = ACCESSENCODING(obitmapFont->encoding, OLDINDEX(i))))
- {
- pci->bits = glyphBytes;
- ScaleBitmap (pf, opci, pci, inv_xform,
- widthMult, heightMult);
- glyphBytes += BYTES_FOR_GLYPH(pci, glyph);
- }
- }
- return pf;
-
-bail:
- if (pf)
- free(pf);
- if (bitmapFont) {
- free(bitmapFont->metrics);
- free(bitmapFont->ink_metrics);
- free(bitmapFont->bitmaps);
- if(bitmapFont->encoding)
- for(i=0; i<NUM_SEGMENTS(nchars); i++)
- free(bitmapFont->encoding[i]);
- free(bitmapFont->encoding);
- }
- return NULL;
-}
-
-/* ARGSUSED */
-int
-BitmapOpenScalable (FontPathElementPtr fpe,
- FontPtr *pFont,
- int flags,
- FontEntryPtr entry,
- char *fileName, /* unused */
- FontScalablePtr vals,
- fsBitmapFormat format,
- fsBitmapFormatMask fmask,
- FontPtr non_cachable_font) /* We don't do licensing */
-{
- FontScalableRec best;
- FontPtr font = NullFont;
- double dx, sdx,
- dy, sdy,
- savedX, savedY;
- FontPropPtr props;
- char *isStringProp = NULL;
- int propCount;
- int status;
- long sWidth;
-
- FontEntryPtr scaleFrom;
- FontPathElementPtr scaleFPE = NULL;
- FontPtr sourceFont;
- char fontName[MAXFONTNAMELEN];
-
- /* Can't deal with mix-endian fonts yet */
-
-
- /* Reject outrageously small font sizes to keep the math from
- blowing up. */
- if (get_matrix_vertical_component(vals->pixel_matrix) < 1.0 ||
- get_matrix_horizontal_component(vals->pixel_matrix) < 1.0)
- return BadFontName;
-
- scaleFrom = FindBestToScale(fpe, entry, vals, &best, &dx, &dy, &sdx, &sdy,
- &scaleFPE);
-
- if (!scaleFrom)
- return BadFontName;
-
- status = FontFileOpenBitmap(scaleFPE, &sourceFont, LoadAll, scaleFrom,
- format, fmask);
-
- if (status != Successful)
- return BadFontName;
-
- if (!vals->width)
- vals->width = best.width * dx;
-
- /* Compute the scaled font */
-
- savedX = dx;
- savedY = dy;
- font = ScaleFont(sourceFont, dx, dy, sdx, sdy, vals, &dx, &dy, &sWidth);
- if (font)
- font = BitmapScaleBitmaps(font, sourceFont, savedX, savedY, vals);
-
- if (!font)
- {
- if (!sourceFont->refcnt)
- FontFileCloseFont((FontPathElementPtr) 0, sourceFont);
- return AllocError;
- }
-
- /* Prepare font properties for the new font */
-
- strcpy (fontName, scaleFrom->name.name);
- FontParseXLFDName (fontName, vals, FONT_XLFD_REPLACE_VALUE);
-
- propCount = ComputeScaledProperties(&sourceFont->info, fontName, vals,
- dx, dy, sdx, sdy, sWidth, &props,
- &isStringProp);
-
- if (!sourceFont->refcnt)
- FontFileCloseFont((FontPathElementPtr) 0, sourceFont);
-
- font->info.props = props;
- font->info.nprops = propCount;
- font->info.isStringProp = isStringProp;
-
- if (propCount && (!props || !isStringProp))
- {
- bitmapUnloadScalable(font);
- return AllocError;
- }
-
- *pFont = font;
- return Successful;
-}
-
-int
-BitmapGetInfoScalable (FontPathElementPtr fpe,
- FontInfoPtr pFontInfo,
- FontEntryPtr entry,
- FontNamePtr fontName,
- char *fileName,
- FontScalablePtr vals)
-{
- FontPtr pfont;
- int flags = 0;
- long format = 0; /* It doesn't matter what format for just info */
- long fmask = 0;
- int ret;
-
- ret = BitmapOpenScalable(fpe, &pfont, flags, entry, fileName, vals,
- format, fmask, NULL);
- if (ret != Successful)
- return ret;
- *pFontInfo = pfont->info;
-
- pfont->info.nprops = 0;
- pfont->info.props = NULL;
- pfont->info.isStringProp = NULL;
-
- (*pfont->unload_font)(pfont);
- return Successful;
-}
-
-static void
-bitmapUnloadScalable (FontPtr pFont)
-{
- BitmapFontPtr bitmapFont;
- FontInfoPtr pfi;
- int i, nencoding;
-
- bitmapFont = (BitmapFontPtr) pFont->fontPrivate;
- pfi = &pFont->info;
- free (pfi->props);
- free (pfi->isStringProp);
- if(bitmapFont->encoding) {
- nencoding = (pFont->info.lastCol - pFont->info.firstCol + 1) *
- (pFont->info.lastRow - pFont->info.firstRow + 1);
- for(i=0; i<NUM_SEGMENTS(nencoding); i++)
- free(bitmapFont->encoding[i]);
- }
- free (bitmapFont->encoding);
- free (bitmapFont->bitmaps);
- free (bitmapFont->ink_metrics);
- free (bitmapFont->metrics);
- free (pFont->fontPrivate);
- DestroyFontRec (pFont);
-}
+/* + +Copyright 1991, 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. + +*/ + +/* + * Author: Keith Packard, MIT X Consortium + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +/* + * Translate monolithic #defines to modular definitions + */ + +#ifdef PCFFORMAT +#define XFONT_PCFFORMAT 1 +#endif + +#ifdef SNFFORMAT +#define XFONT_SNFFORMAT 1 +#endif + +#ifdef BDFFORMAT +#define XFONT_BDFFORMAT 1 +#endif + +#include <X11/fonts/fntfilst.h> +#include <X11/fonts/bitmap.h> +#include <X11/fonts/fontutil.h> +#include <math.h> + +#ifndef MAX +#define MAX(a,b) (((a)>(b)) ? a : b) +#endif + +#ifdef _MSC_VER +#define hypot _hypot +#endif + +/* Should get this from elsewhere */ +extern unsigned long serverGeneration; + +static void bitmapUnloadScalable (FontPtr pFont); +static void ScaleBitmap ( FontPtr pFont, CharInfoPtr opci, + CharInfoPtr pci, double *inv_xform, + double widthMult, double heightMult ); +static FontPtr BitmapScaleBitmaps(FontPtr pf, FontPtr opf, + double widthMult, double heightMult, + FontScalablePtr vals); + +enum scaleType { + atom, truncate_atom, pixel_size, point_size, resolution_x, + resolution_y, average_width, scaledX, scaledY, unscaled, fontname, + raw_ascent, raw_descent, raw_pixelsize, raw_pointsize, + raw_average_width, uncomputed +}; + +typedef struct _fontProp { + char *name; + Atom atom; + enum scaleType type; +} fontProp; + +static FontEntryPtr FindBestToScale ( FontPathElementPtr fpe, + FontEntryPtr entry, + FontScalablePtr vals, + FontScalablePtr best, + double *dxp, double *dyp, + double *sdxp, double *sdyp, + FontPathElementPtr *fpep ); + +static unsigned long bitscaleGeneration = 0; /* initialization flag */ + +static fontProp fontNamePropTable[] = { + { "FOUNDRY", 0, atom }, + { "FAMILY_NAME", 0, atom }, + { "WEIGHT_NAME", 0, atom }, + { "SLANT", 0, atom }, + { "SETWIDTH_NAME", 0, atom }, + { "ADD_STYLE_NAME", 0, atom }, + { "PIXEL_SIZE", 0, pixel_size }, + { "POINT_SIZE", 0, point_size }, + { "RESOLUTION_X", 0, resolution_x }, + { "RESOLUTION_Y", 0, resolution_y }, + { "SPACING", 0, atom }, + { "AVERAGE_WIDTH", 0, average_width }, + { "CHARSET_REGISTRY", 0, atom }, + { "CHARSET_ENCODING", 0, truncate_atom }, + { "FONT", 0, fontname }, + { "RAW_ASCENT", 0, raw_ascent }, + { "RAW_DESCENT", 0, raw_descent }, + { "RAW_PIXEL_SIZE", 0, raw_pixelsize }, + { "RAW_POINT_SIZE", 0, raw_pointsize }, + { "RAW_AVERAGE_WIDTH", 0, raw_average_width } +}; + +#define TRANSFORM_POINT(matrix, x, y, dest) \ + ((dest)[0] = (matrix)[0] * (x) + (matrix)[2] * (y), \ + (dest)[1] = (matrix)[1] * (x) + (matrix)[3] * (y)) + +#define CHECK_EXTENT(lsb, rsb, desc, asc, data) \ + ((lsb) > (data)[0] ? (lsb) = (data)[0] : 0 , \ + (rsb) < (data)[0] ? (rsb) = (data)[0] : 0, \ + (-desc) > (data)[1] ? (desc) = -(data)[1] : 0 , \ + (asc) < (data)[1] ? (asc) = (data)[1] : 0) + +#define NPROPS (sizeof(fontNamePropTable) / sizeof(fontProp)) + +/* Warning: order of the next two tables is critically interdependent. + Location of "unscaled" properties at the end of fontPropTable[] + is important. */ + +static fontProp fontPropTable[] = { + { "MIN_SPACE", 0, scaledX }, + { "NORM_SPACE", 0, scaledX }, + { "MAX_SPACE", 0, scaledX }, + { "END_SPACE", 0, scaledX }, + { "AVG_CAPITAL_WIDTH", 0, scaledX }, + { "AVG_LOWERCASE_WIDTH", 0, scaledX }, + { "QUAD_WIDTH", 0, scaledX }, + { "FIGURE_WIDTH", 0, scaledX }, + { "SUPERSCRIPT_X", 0, scaledX }, + { "SUPERSCRIPT_Y", 0, scaledY }, + { "SUBSCRIPT_X", 0, scaledX }, + { "SUBSCRIPT_Y", 0, scaledY }, + { "SUPERSCRIPT_SIZE", 0, scaledY }, + { "SUBSCRIPT_SIZE", 0, scaledY }, + { "SMALL_CAP_SIZE", 0, scaledY }, + { "UNDERLINE_POSITION", 0, scaledY }, + { "UNDERLINE_THICKNESS", 0, scaledY }, + { "STRIKEOUT_ASCENT", 0, scaledY }, + { "STRIKEOUT_DESCENT", 0, scaledY }, + { "CAP_HEIGHT", 0, scaledY }, + { "X_HEIGHT", 0, scaledY }, + { "ITALIC_ANGLE", 0, unscaled }, + { "RELATIVE_SETWIDTH", 0, unscaled }, + { "RELATIVE_WEIGHT", 0, unscaled }, + { "WEIGHT", 0, unscaled }, + { "DESTINATION", 0, unscaled }, + { "PCL_FONT_NAME", 0, unscaled }, + { "_ADOBE_POSTSCRIPT_FONTNAME", 0, unscaled } +}; + +static fontProp rawFontPropTable[] = { + { "RAW_MIN_SPACE", 0, }, + { "RAW_NORM_SPACE", 0, }, + { "RAW_MAX_SPACE", 0, }, + { "RAW_END_SPACE", 0, }, + { "RAW_AVG_CAPITAL_WIDTH", 0, }, + { "RAW_AVG_LOWERCASE_WIDTH", 0, }, + { "RAW_QUAD_WIDTH", 0, }, + { "RAW_FIGURE_WIDTH", 0, }, + { "RAW_SUPERSCRIPT_X", 0, }, + { "RAW_SUPERSCRIPT_Y", 0, }, + { "RAW_SUBSCRIPT_X", 0, }, + { "RAW_SUBSCRIPT_Y", 0, }, + { "RAW_SUPERSCRIPT_SIZE", 0, }, + { "RAW_SUBSCRIPT_SIZE", 0, }, + { "RAW_SMALL_CAP_SIZE", 0, }, + { "RAW_UNDERLINE_POSITION", 0, }, + { "RAW_UNDERLINE_THICKNESS", 0, }, + { "RAW_STRIKEOUT_ASCENT", 0, }, + { "RAW_STRIKEOUT_DESCENT", 0, }, + { "RAW_CAP_HEIGHT", 0, }, + { "RAW_X_HEIGHT", 0, } +}; + +static void +initFontPropTable(void) +{ + int i; + fontProp *t; + + i = sizeof(fontNamePropTable) / sizeof(fontProp); + for (t = fontNamePropTable; i; i--, t++) + t->atom = MakeAtom(t->name, (unsigned) strlen(t->name), TRUE); + + i = sizeof(fontPropTable) / sizeof(fontProp); + for (t = fontPropTable; i; i--, t++) + t->atom = MakeAtom(t->name, (unsigned) strlen(t->name), TRUE); + + i = sizeof(rawFontPropTable) / sizeof(fontProp); + for (t = rawFontPropTable; i; i--, t++) + t->atom = MakeAtom(t->name, (unsigned) strlen(t->name), TRUE); +} + +#if 0 +static FontEntryPtr +GetScalableEntry (FontPathElementPtr fpe, FontNamePtr name) +{ + FontDirectoryPtr dir; + + dir = (FontDirectoryPtr) fpe->private; + return FontFileFindNameInDir (&dir->scalable, name); +} +#endif + +static double +get_matrix_horizontal_component(double *matrix) +{ + return hypot(matrix[0], matrix[1]); +} + +static double +get_matrix_vertical_component(double *matrix) +{ + return hypot(matrix[2], matrix[3]); +} + + +static Bool +ComputeScaleFactors(FontScalablePtr from, FontScalablePtr to, + double *dx, double *dy, double *sdx, double *sdy, + double *rescale_x) +{ + double srcpixelset, destpixelset, srcpixel, destpixel; + + srcpixelset = get_matrix_horizontal_component(from->pixel_matrix); + destpixelset = get_matrix_horizontal_component(to->pixel_matrix); + srcpixel = get_matrix_vertical_component(from->pixel_matrix); + destpixel = get_matrix_vertical_component(to->pixel_matrix); + + if (srcpixelset >= EPS) + { + *dx = destpixelset / srcpixelset; + *sdx = 1000.0 / srcpixelset; + } + else + *sdx = *dx = 0; + + *rescale_x = 1.0; + + /* If client specified a width, it overrides setsize; in this + context, we interpret width as applying to the font before any + rotation, even though that's not what is ultimately returned in + the width field. */ + if (from->width > 0 && to->width > 0 && fabs(*dx) > EPS) + { + double rescale = (double)to->width / (double)from->width; + + /* If the client specified a transformation matrix, the rescaling + for width does *not* override the setsize. Instead, just check + for consistency between the setsize from the matrix and the + setsize that would result from rescaling according to the width. + This assumes (perhaps naively) that the width is correctly + reported in the name. As an interesting side effect, this test + may result in choosing a different source bitmap (one that + scales consistently between the setsize *and* the width) than it + would choose if a width were not specified. Sort of a hidden + multiple-master functionality. */ + if ((to->values_supplied & PIXELSIZE_MASK) == PIXELSIZE_ARRAY || + (to->values_supplied & POINTSIZE_MASK) == POINTSIZE_ARRAY) + { + /* Reject if resulting width difference is >= 1 pixel */ + if (fabs(rescale * from->width - *dx * from->width) >= 10) + return FALSE; + } + else + { + *rescale_x = rescale/(*dx); + *dx = rescale; + } + } + + if (srcpixel >= EPS) + { + *dy = destpixel / srcpixel; + *sdy = 1000.0 / srcpixel; + } + else + *sdy = *dy = 0; + + return TRUE; +} + +/* favor enlargement over reduction because of aliasing resulting + from reduction */ +#define SCORE(m,s) \ +if (m >= 1.0) { \ + if (m == 1.0) \ + score += (16 * s); \ + else if (m == 2.0) \ + score += (4 * s); \ + else \ + score += (int)(((double)(3 * s)) / m); \ +} else { \ + score += (int)(((double)(2 * s)) * m); \ +} + +/* don't need to favor enlargement when looking for bitmap that can + be used unscalable */ +#define SCORE2(m,s) \ +if (m >= 1.0) \ + score += (int)(((double)(8 * s)) / m); \ +else \ + score += (int)(((double)(8 * s)) * m); + +static FontEntryPtr +FindBestToScale(FontPathElementPtr fpe, FontEntryPtr entry, + FontScalablePtr vals, FontScalablePtr best, + double *dxp, double *dyp, + double *sdxp, double *sdyp, + FontPathElementPtr *fpep) +{ + FontScalableRec temp; + int source, i; + int best_score, best_unscaled_score, + score; + double dx = 0.0, sdx = 0.0, dx_amount = 0.0, + dy = 0.0, sdy = 0.0, dy_amount = 0.0, + best_dx = 0.0, best_sdx = 0.0, best_dx_amount = 0.0, + best_dy = 0.0, best_sdy = 0.0, best_dy_amount = 0.0, + best_unscaled_sdx = 0.0, best_unscaled_sdy = 0.0, + rescale_x = 0.0, best_rescale_x = 0.0, + best_unscaled_rescale_x = 0.0; + FontEntryPtr zero; + FontNameRec zeroName; + char zeroChars[MAXFONTNAMELEN]; + FontDirectoryPtr dir; + FontScaledPtr scaled; + FontScalableExtraPtr extra; + FontScaledPtr best_scaled, best_unscaled; + FontPathElementPtr best_fpe = NULL, best_unscaled_fpe = NULL; + FontEntryPtr bitmap = NULL; + FontEntryPtr result; + int aliascount = 20; + FontPathElementPtr bitmap_fpe = NULL; + FontNameRec xlfdName; + + /* find the best match */ + rescale_x = 1.0; + best_scaled = 0; + best_score = 0; + best_unscaled = 0; + best_unscaled_score = -1; + best_dx_amount = best_dy_amount = HUGE_VAL; + memcpy (zeroChars, entry->name.name, entry->name.length); + zeroChars[entry->name.length] = '\0'; + zeroName.name = zeroChars; + FontParseXLFDName (zeroChars, &temp, FONT_XLFD_REPLACE_ZERO); + zeroName.length = strlen (zeroChars); + zeroName.ndashes = entry->name.ndashes; + xlfdName.name = vals->xlfdName; + xlfdName.length = strlen(xlfdName.name); + xlfdName.ndashes = FontFileCountDashes(xlfdName.name, xlfdName.length); + restart_bestscale_loop: ; + /* + * Look through all the registered bitmap sources for + * the same zero name as ours; entries along that one + * can be scaled as desired. + */ + for (source = 0; source < FontFileBitmapSources.count; source++) + { + /* There might already be a bitmap that satisfies the request + but didn't have a zero name that was found by the scalable + font matching logic. Keep track if there is. */ + if (bitmap == NULL && vals->xlfdName != NULL) + { + bitmap_fpe = FontFileBitmapSources.fpe[source]; + dir = (FontDirectoryPtr) bitmap_fpe->private; + bitmap = FontFileFindNameInDir (&dir->nonScalable, &xlfdName); + if (bitmap && bitmap->type != FONT_ENTRY_BITMAP) + { + if (bitmap->type == FONT_ENTRY_ALIAS && aliascount > 0) + { + aliascount--; + xlfdName.name = bitmap->u.alias.resolved; + xlfdName.length = strlen(xlfdName.name); + xlfdName.ndashes = FontFileCountDashes(xlfdName.name, + xlfdName.length); + bitmap = NULL; + goto restart_bestscale_loop; + } + else + bitmap = NULL; + } + } + + if (FontFileBitmapSources.fpe[source] == fpe) + zero = entry; + else + { + dir = (FontDirectoryPtr) FontFileBitmapSources.fpe[source]->private; + zero = FontFileFindNameInDir (&dir->scalable, &zeroName); + if (!zero) + continue; + } + extra = zero->u.scalable.extra; + for (i = 0; i < extra->numScaled; i++) + { + scaled = &extra->scaled[i]; + if (!scaled->bitmap) + continue; + if (!ComputeScaleFactors(&scaled->vals, vals, &dx, &dy, &sdx, &sdy, + &rescale_x)) + continue; + score = 0; + dx_amount = dx; + dy_amount = dy; + SCORE(dy_amount, 10); + SCORE(dx_amount, 1); + if ((score > best_score) || + ((score == best_score) && + ((dy_amount < best_dy_amount) || + ((dy_amount == best_dy_amount) && + (dx_amount < best_dx_amount))))) + { + best_fpe = FontFileBitmapSources.fpe[source]; + best_scaled = scaled; + best_score = score; + best_dx = dx; + best_dy = dy; + best_sdx = sdx; + best_sdy = sdy; + best_dx_amount = dx_amount; + best_dy_amount = dy_amount; + best_rescale_x = rescale_x; + } + /* Is this font a candidate for use without ugly rescaling? */ + if (fabs(dx) > EPS && fabs(dy) > EPS && + fabs(vals->pixel_matrix[0] * rescale_x - + scaled->vals.pixel_matrix[0]) < 1 && + fabs(vals->pixel_matrix[1] * rescale_x - + scaled->vals.pixel_matrix[1]) < EPS && + fabs(vals->pixel_matrix[2] - + scaled->vals.pixel_matrix[2]) < EPS && + fabs(vals->pixel_matrix[3] - + scaled->vals.pixel_matrix[3]) < 1) + { + /* Yes. The pixel sizes are close on the diagonal and + extremely close off the diagonal. */ + score = 0; + SCORE2(vals->pixel_matrix[3] / + scaled->vals.pixel_matrix[3], 10); + SCORE2(vals->pixel_matrix[0] * rescale_x / + scaled->vals.pixel_matrix[0], 1); + if (score > best_unscaled_score) + { + best_unscaled_fpe = FontFileBitmapSources.fpe[source]; + best_unscaled = scaled; + best_unscaled_sdx = sdx / dx; + best_unscaled_sdy = sdy / dy; + best_unscaled_score = score; + best_unscaled_rescale_x = rescale_x; + } + } + } + } + if (best_unscaled) + { + *best = best_unscaled->vals; + *fpep = best_unscaled_fpe; + *dxp = 1.0; + *dyp = 1.0; + *sdxp = best_unscaled_sdx; + *sdyp = best_unscaled_sdy; + rescale_x = best_unscaled_rescale_x; + result = best_unscaled->bitmap; + } + else if (best_scaled) + { + *best = best_scaled->vals; + *fpep = best_fpe; + *dxp = best_dx; + *dyp = best_dy; + *sdxp = best_sdx; + *sdyp = best_sdy; + rescale_x = best_rescale_x; + result = best_scaled->bitmap; + } + else + result = NULL; + + if (bitmap != NULL && (result == NULL || *dxp != 1.0 || *dyp != 1.0)) + { + *fpep = bitmap_fpe; + FontParseXLFDName (bitmap->name.name, best, FONT_XLFD_REPLACE_NONE); + if (ComputeScaleFactors(best, best, dxp, dyp, sdxp, sdyp, &rescale_x)) + result = bitmap; + else + result = NULL; + } + + if (result && rescale_x != 1.0) + { + /* We have rescaled horizontally due to an XLFD width field. Change + the matrix appropriately */ + vals->pixel_matrix[0] *= rescale_x; + vals->pixel_matrix[1] *= rescale_x; + vals->values_supplied = vals->values_supplied & ~POINTSIZE_MASK; + /* Recompute and reround the FontScalablePtr values after + rescaling for the new width. */ + FontFileCompleteXLFD(vals, vals); + } + + return result; +} + +static long +doround(double x) +{ + return (x >= 0) ? (long)(x + .5) : (long)(x - .5); +} + +static int +computeProps(FontPropPtr pf, char *wasStringProp, + FontPropPtr npf, char *isStringProp, + unsigned int nprops, double xfactor, double yfactor, + double sXfactor, double sYfactor) +{ + int n; + int count; + fontProp *t; + double rawfactor = 0.0; + + for (count = 0; nprops > 0; nprops--, pf++, wasStringProp++) { + n = sizeof(fontPropTable) / sizeof(fontProp); + for (t = fontPropTable; n && (t->atom != pf->name); n--, t++); + if (!n) + continue; + + switch (t->type) { + case scaledX: + npf->value = doround(xfactor * (double)pf->value); + rawfactor = sXfactor; + break; + case scaledY: + npf->value = doround(yfactor * (double)pf->value); + rawfactor = sYfactor; + break; + case unscaled: + npf->value = pf->value; + npf->name = pf->name; + npf++; + count++; + *isStringProp++ = *wasStringProp; + break; + default: + break; + } + if (t->type != unscaled) + { + npf->name = pf->name; + npf++; + count++; + npf->value = doround(rawfactor * (double)pf->value); + npf->name = rawFontPropTable[t - fontPropTable].atom; + npf++; + count++; + *isStringProp++ = *wasStringProp; + *isStringProp++ = *wasStringProp; + } + } + return count; +} + + +static int +ComputeScaledProperties(FontInfoPtr sourceFontInfo, /* the font to be scaled */ + char *name, /* name of resulting font */ + FontScalablePtr vals, + double dx, double dy, /* scale factors in x and y */ + double sdx, double sdy, /* directions */ + long sWidth, /* 1000-pixel average width */ + FontPropPtr *pProps, /* returns properties; + preallocated */ + char **pIsStringProp) /* return booleans; + preallocated */ +{ + int n; + char *ptr1 = NULL, *ptr2 = NULL; + char *ptr3; + FontPropPtr fp; + fontProp *fpt; + char *isStringProp; + int nProps; + + if (bitscaleGeneration != serverGeneration) { + initFontPropTable(); + bitscaleGeneration = serverGeneration; + } + nProps = NPROPS + 1 + sizeof(fontPropTable) / sizeof(fontProp) + + sizeof(rawFontPropTable) / sizeof(fontProp); + fp = malloc(sizeof(FontPropRec) * nProps); + *pProps = fp; + if (!fp) { + fprintf(stderr, "Error: Couldn't allocate font properties (%ld*%d)\n", + (unsigned long)sizeof(FontPropRec), nProps); + return 1; + } + isStringProp = malloc (nProps); + *pIsStringProp = isStringProp; + if (!isStringProp) + { + fprintf(stderr, "Error: Couldn't allocate isStringProp (%d)\n", nProps); + free (fp); + return 1; + } + ptr2 = name; + for (fpt = fontNamePropTable, n = NPROPS; + n; + fp++, fpt++, n--, isStringProp++) + { + + if (*ptr2) + { + ptr1 = ptr2 + 1; + if (!(ptr2 = strchr(ptr1, '-'))) ptr2 = strchr(ptr1, '\0'); + } + + *isStringProp = 0; + switch (fpt->type) { + case atom: + fp->value = MakeAtom(ptr1, ptr2 - ptr1, TRUE); + *isStringProp = 1; + break; + case truncate_atom: + for (ptr3 = ptr1; *ptr3; ptr3++) + if (*ptr3 == '[') + break; + if (!*ptr3) ptr3 = ptr2; + fp->value = MakeAtom(ptr1, ptr3 - ptr1, TRUE); + *isStringProp = 1; + break; + case pixel_size: + fp->value = doround(vals->pixel_matrix[3]); + break; + case point_size: + fp->value = doround(vals->point_matrix[3] * 10.0); + break; + case resolution_x: + fp->value = vals->x; + break; + case resolution_y: + fp->value = vals->y; + break; + case average_width: + fp->value = vals->width; + break; + case fontname: + fp->value = MakeAtom(name, strlen(name), TRUE); + *isStringProp = 1; + break; + case raw_ascent: + fp->value = sourceFontInfo->fontAscent * sdy; + break; + case raw_descent: + fp->value = sourceFontInfo->fontDescent * sdy; + break; + case raw_pointsize: + fp->value = (long)(72270.0 / (double)vals->y + .5); + break; + case raw_pixelsize: + fp->value = 1000; + break; + case raw_average_width: + fp->value = sWidth; + break; + default: + break; + } + fp->name = fpt->atom; + } + n = NPROPS; + n += computeProps(sourceFontInfo->props, sourceFontInfo->isStringProp, + fp, isStringProp, sourceFontInfo->nprops, dx, dy, + sdx, sdy); + return n; +} + + +static int +compute_xform_matrix(FontScalablePtr vals, double dx, double dy, + double *xform, double *inv_xform, + double *xmult, double *ymult) +{ + double det; + double pixel = get_matrix_vertical_component(vals->pixel_matrix); + double pixelset = get_matrix_horizontal_component(vals->pixel_matrix); + + if (pixel < EPS || pixelset < EPS) return 0; + + /* Initialize the transformation matrix to the scaling factors */ + xform[0] = dx / pixelset; + xform[1] = xform[2] = 0.0; + xform[3] = dy / pixel; + +/* Inline matrix multiply -- somewhat ugly to minimize register usage */ +#define MULTIPLY_XFORM(a,b,c,d) \ +{ \ + register double aa = (a), bb = (b), cc = (c), dd = (d); \ + register double temp; \ + temp = aa * xform[0] + cc * xform[1]; \ + aa = aa * xform[2] + cc * xform[3]; \ + xform[1] = bb * xform[0] + dd * xform[1]; \ + xform[3] = bb * xform[2] + dd * xform[3]; \ + xform[0] = temp; \ + xform[2] = aa; \ +} + + /* Rescale the transformation matrix for size of source font */ + MULTIPLY_XFORM(vals->pixel_matrix[0], + vals->pixel_matrix[1], + vals->pixel_matrix[2], + vals->pixel_matrix[3]); + + *xmult = xform[0]; + *ymult = xform[3]; + + + if (inv_xform == NULL) return 1; + + /* Compute the determinant for use in inverting the matrix. */ + det = xform[0] * xform[3] - xform[1] * xform[2]; + + /* If the determinant is tiny or zero, give up */ + if (fabs(det) < EPS) return 0; + + /* Compute the inverse */ + inv_xform[0] = xform[3] / det; + inv_xform[1] = -xform[1] / det; + inv_xform[2] = -xform[2] / det; + inv_xform[3] = xform[0] / det; + + return 1; +} + +/* + * ScaleFont + * returns a pointer to the new scaled font, or NULL (due to AllocError). + */ +static FontPtr +ScaleFont(FontPtr opf, /* originating font */ + double widthMult, /* glyphs width scale factor */ + double heightMult, /* glyphs height scale factor */ + double sWidthMult, /* scalable glyphs width scale factor */ + double sHeightMult, /* scalable glyphs height scale factor */ + FontScalablePtr vals, + double *newWidthMult, /* return: X component of glyphs width + scale factor */ + double *newHeightMult, /* return: Y component of glyphs height + scale factor */ + long *sWidth) /* return: average 1000-pixel width */ +{ + FontPtr pf; + FontInfoPtr pfi, + opfi; + BitmapFontPtr bitmapFont, + obitmapFont; + CharInfoPtr pci, + opci; + int nchars = 0; /* how many characters in the font */ + int i; + int firstCol, lastCol, firstRow, lastRow; + double xform[4], inv_xform[4]; + double xmult, ymult; + int totalwidth = 0, totalchars = 0; +#define OLDINDEX(i) (((i)/(lastCol - firstCol + 1) + \ + firstRow - opf->info.firstRow) * \ + (opf->info.lastCol - opf->info.firstCol + 1) + \ + (i)%(lastCol - firstCol + 1) + \ + firstCol - opf->info.firstCol) + + *sWidth = 0; + + opfi = &opf->info; + obitmapFont = (BitmapFontPtr) opf->fontPrivate; + + bitmapFont = 0; + if (!(pf = CreateFontRec())) { + fprintf(stderr, "Error: Couldn't allocate FontRec (%ld)\n", + (unsigned long)sizeof(FontRec)); + goto bail; + } + pf->refcnt = 0; + pf->bit = opf->bit; + pf->byte = opf->byte; + pf->glyph = opf->glyph; + pf->scan = opf->scan; + + pf->get_glyphs = bitmapGetGlyphs; + pf->get_metrics = bitmapGetMetrics; + pf->unload_font = bitmapUnloadScalable; + pf->unload_glyphs = NULL; + + pfi = &pf->info; + *pfi = *opfi; + /* If charset subsetting specified in vals, determine what our range + needs to be for the output font */ + if (vals->nranges) + { + int i; + + pfi->allExist = 0; + firstCol = 255; + lastCol = 0; + firstRow = 255; + lastRow = 0; + + for (i = 0; i < vals->nranges; i++) + { + if (vals->ranges[i].min_char_high != vals->ranges[i].max_char_high) + { + firstCol = opfi->firstCol; + lastCol = opfi->lastCol; + } + if (firstCol > vals->ranges[i].min_char_low) + firstCol = vals->ranges[i].min_char_low; + if (lastCol < vals->ranges[i].max_char_low) + lastCol = vals->ranges[i].max_char_low; + if (firstRow > vals->ranges[i].min_char_high) + firstRow = vals->ranges[i].min_char_high; + if (lastRow < vals->ranges[i].max_char_high) + lastRow = vals->ranges[i].max_char_high; + } + + if (firstCol > lastCol || firstRow > lastRow) + goto bail; + + if (firstCol < opfi->firstCol) + firstCol = opfi->firstCol; + if (lastCol > opfi->lastCol) + lastCol = opfi->lastCol; + if (firstRow < opfi->firstRow) + firstRow = opfi->firstRow; + if (lastRow > opfi->lastRow) + lastRow = opfi->lastRow; + } + else + { + firstCol = opfi->firstCol; + lastCol = opfi->lastCol; + firstRow = opfi->firstRow; + lastRow = opfi->lastRow; + } + + bitmapFont = malloc(sizeof(BitmapFontRec)); + if (!bitmapFont) { + fprintf(stderr, "Error: Couldn't allocate bitmapFont (%ld)\n", + (unsigned long)sizeof(BitmapFontRec)); + goto bail; + } + nchars = (lastRow - firstRow + 1) * (lastCol - firstCol + 1); + pfi->firstRow = firstRow; + pfi->lastRow = lastRow; + pfi->firstCol = firstCol; + pfi->lastCol = lastCol; + pf->fontPrivate = (pointer) bitmapFont; + bitmapFont->version_num = obitmapFont->version_num; + bitmapFont->num_chars = nchars; + bitmapFont->num_tables = obitmapFont->num_tables; + bitmapFont->metrics = 0; + bitmapFont->ink_metrics = 0; + bitmapFont->bitmaps = 0; + bitmapFont->encoding = 0; + bitmapFont->bitmapExtra = 0; + bitmapFont->pDefault = 0; + bitmapFont->metrics = malloc(nchars * sizeof(CharInfoRec)); + if (!bitmapFont->metrics) { + fprintf(stderr, "Error: Couldn't allocate metrics (%d*%ld)\n", + nchars, (unsigned long)sizeof(CharInfoRec)); + goto bail; + } + bitmapFont->encoding = calloc(NUM_SEGMENTS(nchars), sizeof(CharInfoPtr*)); + if (!bitmapFont->encoding) { + fprintf(stderr, "Error: Couldn't allocate encoding (%d*%ld)\n", + nchars, (unsigned long)sizeof(CharInfoPtr)); + goto bail; + } + +#undef MAXSHORT +#define MAXSHORT 32767 +#undef MINSHORT +#define MINSHORT -32768 + + pfi->anamorphic = FALSE; + if (heightMult != widthMult) + pfi->anamorphic = TRUE; + pfi->cachable = TRUE; + + if (!compute_xform_matrix(vals, widthMult, heightMult, xform, + inv_xform, &xmult, &ymult)) + goto bail; + + pfi->fontAscent = opfi->fontAscent * ymult; + pfi->fontDescent = opfi->fontDescent * ymult; + + pfi->minbounds.leftSideBearing = MAXSHORT; + pfi->minbounds.rightSideBearing = MAXSHORT; + pfi->minbounds.ascent = MAXSHORT; + pfi->minbounds.descent = MAXSHORT; + pfi->minbounds.characterWidth = MAXSHORT; + pfi->minbounds.attributes = MAXSHORT; + + pfi->maxbounds.leftSideBearing = MINSHORT; + pfi->maxbounds.rightSideBearing = MINSHORT; + pfi->maxbounds.ascent = MINSHORT; + pfi->maxbounds.descent = MINSHORT; + pfi->maxbounds.characterWidth = MINSHORT; + pfi->maxbounds.attributes = MINSHORT; + + /* Compute the transformation and inverse transformation matrices. + Can fail if the determinant is zero. */ + + pci = bitmapFont->metrics; + for (i = 0; i < nchars; i++) + { + if ((opci = ACCESSENCODING(obitmapFont->encoding,OLDINDEX(i)))) + { + double newlsb, newrsb, newdesc, newasc, point[2]; + +#define minchar(p) ((p).min_char_low + ((p).min_char_high << 8)) +#define maxchar(p) ((p).max_char_low + ((p).max_char_high << 8)) + + if (vals->nranges) + { + int row = i / (lastCol - firstCol + 1) + firstRow; + int col = i % (lastCol - firstCol + 1) + firstCol; + int ch = (row << 8) + col; + int j; + for (j = 0; j < vals->nranges; j++) + if (ch >= minchar(vals->ranges[j]) && + ch <= maxchar(vals->ranges[j])) + break; + if (j == vals->nranges) + { + continue; + } + } + + if (opci->metrics.leftSideBearing == 0 && + opci->metrics.rightSideBearing == 0 && + opci->metrics.ascent == 0 && + opci->metrics.descent == 0 && + opci->metrics.characterWidth == 0) + { + continue; + } + + if(!bitmapFont->encoding[SEGMENT_MAJOR(i)]) { + bitmapFont->encoding[SEGMENT_MAJOR(i)]= + calloc(BITMAP_FONT_SEGMENT_SIZE, sizeof(CharInfoPtr)); + if(!bitmapFont->encoding[SEGMENT_MAJOR(i)]) + goto bail; + } + ACCESSENCODINGL(bitmapFont->encoding, i) = pci; + + /* Compute new extents for this glyph */ + TRANSFORM_POINT(xform, + opci->metrics.leftSideBearing, + -opci->metrics.descent, + point); + newlsb = point[0]; + newrsb = newlsb; + newdesc = -point[1]; + newasc = -newdesc; + TRANSFORM_POINT(xform, + opci->metrics.leftSideBearing, + opci->metrics.ascent, + point); + CHECK_EXTENT(newlsb, newrsb, newdesc, newasc, point); + TRANSFORM_POINT(xform, + opci->metrics.rightSideBearing, + -opci->metrics.descent, + point); + CHECK_EXTENT(newlsb, newrsb, newdesc, newasc, point); + TRANSFORM_POINT(xform, + opci->metrics.rightSideBearing, + opci->metrics.ascent, + point); + CHECK_EXTENT(newlsb, newrsb, newdesc, newasc, point); + + pci->metrics.leftSideBearing = (int)floor(newlsb); + pci->metrics.rightSideBearing = (int)floor(newrsb + .5); + pci->metrics.descent = (int)ceil(newdesc); + pci->metrics.ascent = (int)floor(newasc + .5); + /* Accumulate total width of characters before transformation, + to ascertain predominant direction of font. */ + totalwidth += opci->metrics.characterWidth; + pci->metrics.characterWidth = + doround((double)opci->metrics.characterWidth * xmult); + pci->metrics.attributes = + doround((double)opci->metrics.characterWidth * sWidthMult); + if (!pci->metrics.characterWidth) + { + /* Since transformation may shrink width, height, and + escapement to zero, make sure existing characters + are not mistaken for undefined characters. */ + + if (pci->metrics.rightSideBearing == + pci->metrics.leftSideBearing) + pci->metrics.rightSideBearing++; + if (pci->metrics.ascent == -pci->metrics.descent) + pci->metrics.ascent++; + } + + pci++; + } + } + + + /* + * For each character, set the per-character metrics, scale the glyph, and + * check per-font minbounds and maxbounds character information. + */ + + pci = bitmapFont->metrics; + for (i = 0; i < nchars; i++) + { + if ((pci = ACCESSENCODING(bitmapFont->encoding,i)) && + (opci = ACCESSENCODING(obitmapFont->encoding,OLDINDEX(i)))) + { + totalchars++; + *sWidth += abs((int)(INT16)pci->metrics.attributes); +#define MINMAX(field) \ + if (pfi->minbounds.field > pci->metrics.field) \ + pfi->minbounds.field = pci->metrics.field; \ + if (pfi->maxbounds.field < pci->metrics.field) \ + pfi->maxbounds.field = pci->metrics.field + + MINMAX(leftSideBearing); + MINMAX(rightSideBearing); + MINMAX(ascent); + MINMAX(descent); + MINMAX(characterWidth); + + /* Hack: Cast attributes into a signed quantity. Tread lightly + for now and don't go changing the global Xproto.h file */ + if ((INT16)pfi->minbounds.attributes > + (INT16)pci->metrics.attributes) + pfi->minbounds.attributes = pci->metrics.attributes; + if ((INT16)pfi->maxbounds.attributes < + (INT16)pci->metrics.attributes) + pfi->maxbounds.attributes = pci->metrics.attributes; +#undef MINMAX + } + } + pfi->ink_minbounds = pfi->minbounds; + pfi->ink_maxbounds = pfi->maxbounds; + if (totalchars) + { + *sWidth = (*sWidth * 10 + totalchars / 2) / totalchars; + if (totalwidth < 0) + { + /* Dominant direction is R->L */ + *sWidth = -*sWidth; + } + + if (pfi->minbounds.characterWidth == pfi->maxbounds.characterWidth) + vals->width = pfi->minbounds.characterWidth * 10; + else + vals->width = doround((double)*sWidth * vals->pixel_matrix[0] / + 1000.0); + } + else + { + vals->width = 0; + *sWidth = 0; + } + FontComputeInfoAccelerators (pfi); + + if (pfi->defaultCh != (unsigned short) NO_SUCH_CHAR) { + unsigned int r, + c, + cols; + + r = pfi->defaultCh >> 8; + c = pfi->defaultCh & 0xFF; + if (pfi->firstRow <= r && r <= pfi->lastRow && + pfi->firstCol <= c && c <= pfi->lastCol) { + cols = pfi->lastCol - pfi->firstCol + 1; + r = r - pfi->firstRow; + c = c - pfi->firstCol; + bitmapFont->pDefault = + ACCESSENCODING(bitmapFont->encoding, r * cols + c); + } + } + + *newWidthMult = xmult; + *newHeightMult = ymult; + return pf; +bail: + if (pf) + free(pf); + if (bitmapFont) { + free(bitmapFont->metrics); + free(bitmapFont->ink_metrics); + free(bitmapFont->bitmaps); + if(bitmapFont->encoding) + for(i=0; i<NUM_SEGMENTS(nchars); i++) + free(bitmapFont->encoding[i]); + free(bitmapFont->encoding); + } + return NULL; +} + +static void +ScaleBitmap(FontPtr pFont, CharInfoPtr opci, CharInfoPtr pci, + double *inv_xform, double widthMult, double heightMult) +{ + register char *bitmap, /* The bits */ + *newBitmap; + register int bpr, /* Padding information */ + newBpr; + int width, /* Extents information */ + height, + newWidth, + newHeight; + register int row, /* Loop variables */ + col; + INT32 deltaX, /* Increments for resampling loop */ + deltaY; + INT32 xValue, /* Subscripts for resampling loop */ + yValue; + double point[2]; + unsigned char *char_grayscale = 0; + INT32 *diffusion_workspace = NULL, *thisrow = NULL, + *nextrow = NULL, pixmult = 0; + int box_x = 0, box_y = 0; + + static unsigned char masklsb[] = + { 0x1, 0x2, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80 }; + static unsigned char maskmsb[] = + { 0x80, 0x40, 0x20, 0x10, 0x8, 0x4, 0x2, 0x1 }; + unsigned char *mask = (pFont->bit == LSBFirst ? masklsb : maskmsb); + + + bitmap = opci->bits; + newBitmap = pci->bits; + width = GLYPHWIDTHPIXELS(opci); + height = GLYPHHEIGHTPIXELS(opci); + newWidth = GLYPHWIDTHPIXELS(pci); + newHeight = GLYPHHEIGHTPIXELS(pci); + if (!newWidth || !newHeight || !width || !height) + return; + + bpr = BYTES_PER_ROW(width, pFont->glyph); + newBpr = BYTES_PER_ROW(newWidth, pFont->glyph); + + if (widthMult > 0.0 && heightMult > 0.0 && + (widthMult < 1.0 || heightMult < 1.0)) + { + /* We are reducing in one or both dimensions. In an attempt to + reduce aliasing, we'll antialias by passing the original + glyph through a low-pass box filter (which results in a + grayscale image), then use error diffusion to create bitonal + output in the resampling loop. */ + + /* First compute the sizes of the box filter */ + widthMult = ceil(1.0 / widthMult); + heightMult = ceil(1.0 / heightMult); + box_x = width / 2; + box_y = height / 2; + if (widthMult < (double)box_x) box_x = (int)widthMult; + if (heightMult < (double)box_y) box_y = (int)heightMult; + /* The pixmult value (below) is used to darken the image before + we perform error diffusion: a necessary concession to the + fact that it's very difficult to generate readable halftoned + glyphs. The degree of darkening is proportional to the size + of the blurring filter, hence inversely proportional to the + darkness of the lightest gray that results from antialiasing. + The result is that characters that exercise this logic (those + generated by reducing from a larger source font) tend to err + on the side of being too bold instead of being too light to + be readable. */ + pixmult = box_x * box_y * 192; + + if (box_x > 1 || box_y > 1) + { + /* Looks like we need to anti-alias. Create a workspace to + contain the grayscale character plus an additional row and + column for scratch */ + char_grayscale = malloc((width + 1) * (height + 1)); + if (char_grayscale) + { + diffusion_workspace = calloc((newWidth + 2) * 2, sizeof(int)); + if (!diffusion_workspace) + { + fprintf(stderr, "Warning: Couldn't allocate diffusion" + " workspace (%ld)\n", + (newWidth + 2) * 2 * (unsigned long)sizeof(int)); + free(char_grayscale); + char_grayscale = (unsigned char *)0; + } + /* Initialize our error diffusion workspace for later use */ + thisrow = diffusion_workspace + 1; + nextrow = diffusion_workspace + newWidth + 3; + } else { + fprintf(stderr, "Warning: Couldn't allocate character grayscale (%d)\n", (width + 1) * (height + 1)); + } + } + } + + if (char_grayscale) + { + /* We will be doing antialiasing. First copy the bitmap into + our buffer, mapping input range [0,1] to output range + [0,255]. */ + register unsigned char *srcptr, *dstptr; + srcptr = (unsigned char *)bitmap; + dstptr = char_grayscale; + for (row = 0; row < height; row++) + { + for (col = 0; col < width; col++) + *dstptr++ = (srcptr[col >> 3] & mask[col & 0x7]) ? 255 : 0; + srcptr += bpr; /* On to next row of source */ + dstptr++; /* Skip scratch column in dest */ + } + if (box_x > 1) + { + /* Our box filter has a width > 1... let's filter the rows */ + + int right_width = box_x / 2; + int left_width = box_x - right_width - 1; + + for (row = 0; row < height; row++) + { + int sum = 0; + int left_size = 0, right_size = 0; + + srcptr = char_grayscale + (width + 1) * row; + dstptr = char_grayscale + (width + 1) * height; /* scratch */ + + /* We've computed the shape of our full box filter. Now + compute the right-hand part of the moving sum */ + for (right_size = 0; right_size < right_width; right_size++) + sum += srcptr[right_size]; + + /* Now start moving the sum, growing the box filter, and + dropping averages into our scratch buffer */ + for (left_size = 0; left_size < left_width; left_size++) + { + sum += srcptr[right_width]; + *dstptr++ = sum / (left_size + right_width + 1); + srcptr++; + } + + /* The box filter has reached full width... continue + computation of moving average until the right side + hits the wall. */ + for (col = left_size; col + right_size < width; col++) + { + sum += srcptr[right_width]; + *dstptr++ = sum / box_x; + sum -= srcptr[-left_width]; + srcptr++; + } + + /* Collapse the right side of the box filter */ + for (; right_size > 0; right_size--) + { + *dstptr++ = sum / (left_width + right_size); + sum -= srcptr[-left_width]; + srcptr++; + } + + /* Done with the row... copy dest back over source */ + memmove(char_grayscale + (width + 1) * row, + char_grayscale + (width + 1) * height, + width); + } + } + if (box_y > 1) + { + /* Our box filter has a height > 1... let's filter the columns */ + + int bottom_height = box_y / 2; + int top_height = box_y - bottom_height - 1; + + for (col = 0; col < width; col++) + { + int sum = 0; + int top_size = 0, bottom_size = 0; + + srcptr = char_grayscale + col; + dstptr = char_grayscale + width; /* scratch */ + + /* We've computed the shape of our full box filter. Now + compute the bottom part of the moving sum */ + for (bottom_size = 0; + bottom_size < bottom_height; + bottom_size++) + sum += srcptr[bottom_size * (width + 1)]; + + /* Now start moving the sum, growing the box filter, and + dropping averages into our scratch buffer */ + for (top_size = 0; top_size < top_height; top_size++) + { + sum += srcptr[bottom_height * (width + 1)]; + *dstptr = sum / (top_size + bottom_height + 1); + dstptr += width + 1; + srcptr += width + 1; + } + + /* The box filter has reached full height... continue + computation of moving average until the bottom + hits the wall. */ + for (row = top_size; row + bottom_size < height; row++) + { + sum += srcptr[bottom_height * (width + 1)]; + *dstptr = sum / box_y; + dstptr += width + 1; + sum -= srcptr[-top_height * (width + 1)]; + srcptr += width + 1; + } + + /* Collapse the bottom of the box filter */ + for (; bottom_size > 0; bottom_size--) + { + *dstptr = sum / (top_height + bottom_size); + dstptr += width + 1; + sum -= srcptr[-top_height * (width + 1)]; + srcptr += width + 1; + } + + /* Done with the column... copy dest back over source */ + + dstptr = char_grayscale + col; + srcptr = char_grayscale + width; /* scratch */ + for (row = 0; row < height; row++) + { + *dstptr = *srcptr; + dstptr += width + 1; + srcptr += width + 1; + } + } + } + + /* Increase the grayvalue to increase ink a bit */ + srcptr = char_grayscale; + for (row = 0; row < height; row++) + { + for (col = 0; col < width; col++) + { + register int pixvalue = (int)*srcptr * pixmult / 256; + if (pixvalue > 255) pixvalue = 255; + *srcptr = pixvalue; + srcptr++; + } + srcptr++; + } + } + + /* Compute the increment values for the resampling loop */ + TRANSFORM_POINT(inv_xform, 1, 0, point); + deltaX = (INT32)(point[0] * 65536.0); + deltaY = (INT32)(-point[1] * 65536.0); + + /* Resampling loop: resamples original glyph for generation of new + glyph in transformed coordinate system. */ + + for (row = 0; row < newHeight; row++) + { + /* Compute inverse transformation for start of this row */ + TRANSFORM_POINT(inv_xform, + (double)(pci->metrics.leftSideBearing) + .5, + (double)(pci->metrics.ascent - row) - .5, + point); + + /* Adjust for coordinate system to get resampling point */ + point[0] -= opci->metrics.leftSideBearing; + point[1] = opci->metrics.ascent - point[1]; + + /* Convert to integer coordinates */ + xValue = (INT32)(point[0] * 65536.0); + yValue = (INT32)(point[1] * 65536.0); + + if (char_grayscale) + { + INT32 *temp; + for (col = 0; col < newWidth; col++) + { + register int x = xValue >> 16, y = yValue >> 16; + int pixvalue, error; + + pixvalue = ((x >= 0 && x < width && y >= 0 && y < height) ? + char_grayscale[x + y * (width + 1)] : 0) + + thisrow[col] / 16; + if (pixvalue > 255) pixvalue = 255; + else if (pixvalue < 0) pixvalue = 0; + + /* Choose the bit value and set resulting error value */ + if (pixvalue >= 128) + { + newBitmap[(col >> 3) + row * newBpr] |= mask[col & 0x7]; + error = pixvalue - 255; + } + else + error = -pixvalue; + + /* Diffuse the error */ + thisrow[col + 1] += error * 7; + nextrow[col - 1] += error * 3; + nextrow[col] += error * 5; + nextrow[col + 1] = error; + + xValue += deltaX; + yValue += deltaY; + } + + /* Add in error values that fell off either end */ + nextrow[0] += nextrow[-1]; + nextrow[newWidth - 2] += thisrow[newWidth]; + nextrow[newWidth - 1] += nextrow[newWidth]; + nextrow[newWidth] = 0; + + temp = nextrow; + nextrow = thisrow; + thisrow = temp; + nextrow[-1] = nextrow[0] = 0; + } + else + { + for (col = 0; col < newWidth; col++) + { + register int x = xValue >> 16, y = yValue >> 16; + + if (x >= 0 && x < width && y >= 0 && y < height) + { + /* Use point-sampling for rescaling. */ + + if (bitmap[(x >> 3) + y * bpr] & mask[x & 0x7]) + newBitmap[(col >> 3) + row * newBpr] |= mask[col & 0x7]; + } + + xValue += deltaX; + yValue += deltaY; + } + } + } + + + if (char_grayscale) + { + free(char_grayscale); + free(diffusion_workspace); + } +} + +static FontPtr +BitmapScaleBitmaps(FontPtr pf, /* scaled font */ + FontPtr opf, /* originating font */ + double widthMult, /* glyphs width scale factor */ + double heightMult, /* glyphs height scale factor */ + FontScalablePtr vals) +{ + register int i; + int nchars = 0; + char *glyphBytes; + BitmapFontPtr bitmapFont, + obitmapFont; + CharInfoPtr pci, + opci; + FontInfoPtr pfi; + int glyph; + unsigned bytestoalloc = 0; + int firstCol, lastCol, firstRow, lastRow; + + double xform[4], inv_xform[4]; + double xmult, ymult; + + bitmapFont = (BitmapFontPtr) pf->fontPrivate; + obitmapFont = (BitmapFontPtr) opf->fontPrivate; + + if (!compute_xform_matrix(vals, widthMult, heightMult, xform, + inv_xform, &xmult, &ymult)) + goto bail; + + pfi = &pf->info; + firstCol = pfi->firstCol; + lastCol = pfi->lastCol; + firstRow = pfi->firstRow; + lastRow = pfi->lastRow; + + nchars = (lastRow - firstRow + 1) * (lastCol - firstCol + 1); + glyph = pf->glyph; + for (i = 0; i < nchars; i++) + { + if ((pci = ACCESSENCODING(bitmapFont->encoding, i))) + bytestoalloc += BYTES_FOR_GLYPH(pci, glyph); + } + + /* Do we add the font malloc stuff for VALUE ADDED ? */ + /* Will need to remember to free in the Unload routine */ + + + bitmapFont->bitmaps = calloc(1, bytestoalloc); + if (!bitmapFont->bitmaps) { + fprintf(stderr, "Error: Couldn't allocate bitmaps (%d)\n", bytestoalloc); + goto bail; + } + + glyphBytes = bitmapFont->bitmaps; + for (i = 0; i < nchars; i++) + { + if ((pci = ACCESSENCODING(bitmapFont->encoding, i)) && + (opci = ACCESSENCODING(obitmapFont->encoding, OLDINDEX(i)))) + { + pci->bits = glyphBytes; + ScaleBitmap (pf, opci, pci, inv_xform, + widthMult, heightMult); + glyphBytes += BYTES_FOR_GLYPH(pci, glyph); + } + } + return pf; + +bail: + if (pf) + free(pf); + if (bitmapFont) { + free(bitmapFont->metrics); + free(bitmapFont->ink_metrics); + free(bitmapFont->bitmaps); + if(bitmapFont->encoding) + for(i=0; i<NUM_SEGMENTS(nchars); i++) + free(bitmapFont->encoding[i]); + free(bitmapFont->encoding); + } + return NULL; +} + +/* ARGSUSED */ +int +BitmapOpenScalable (FontPathElementPtr fpe, + FontPtr *pFont, + int flags, + FontEntryPtr entry, + char *fileName, /* unused */ + FontScalablePtr vals, + fsBitmapFormat format, + fsBitmapFormatMask fmask, + FontPtr non_cachable_font) /* We don't do licensing */ +{ + FontScalableRec best; + FontPtr font = NullFont; + double dx, sdx, + dy, sdy, + savedX, savedY; + FontPropPtr props; + char *isStringProp = NULL; + int propCount; + int status; + long sWidth; + + FontEntryPtr scaleFrom; + FontPathElementPtr scaleFPE = NULL; + FontPtr sourceFont; + char fontName[MAXFONTNAMELEN]; + + /* Can't deal with mix-endian fonts yet */ + + + /* Reject outrageously small font sizes to keep the math from + blowing up. */ + if (get_matrix_vertical_component(vals->pixel_matrix) < 1.0 || + get_matrix_horizontal_component(vals->pixel_matrix) < 1.0) + return BadFontName; + + scaleFrom = FindBestToScale(fpe, entry, vals, &best, &dx, &dy, &sdx, &sdy, + &scaleFPE); + + if (!scaleFrom) + return BadFontName; + + status = FontFileOpenBitmap(scaleFPE, &sourceFont, LoadAll, scaleFrom, + format, fmask); + + if (status != Successful) + return BadFontName; + + if (!vals->width) + vals->width = best.width * dx; + + /* Compute the scaled font */ + + savedX = dx; + savedY = dy; + font = ScaleFont(sourceFont, dx, dy, sdx, sdy, vals, &dx, &dy, &sWidth); + if (font) + font = BitmapScaleBitmaps(font, sourceFont, savedX, savedY, vals); + + if (!font) + { + if (!sourceFont->refcnt) + FontFileCloseFont((FontPathElementPtr) 0, sourceFont); + return AllocError; + } + + /* Prepare font properties for the new font */ + + strcpy (fontName, scaleFrom->name.name); + FontParseXLFDName (fontName, vals, FONT_XLFD_REPLACE_VALUE); + + propCount = ComputeScaledProperties(&sourceFont->info, fontName, vals, + dx, dy, sdx, sdy, sWidth, &props, + &isStringProp); + + if (!sourceFont->refcnt) + FontFileCloseFont((FontPathElementPtr) 0, sourceFont); + + font->info.props = props; + font->info.nprops = propCount; + font->info.isStringProp = isStringProp; + + if (propCount && (!props || !isStringProp)) + { + bitmapUnloadScalable(font); + return AllocError; + } + + *pFont = font; + return Successful; +} + +int +BitmapGetInfoScalable (FontPathElementPtr fpe, + FontInfoPtr pFontInfo, + FontEntryPtr entry, + FontNamePtr fontName, + char *fileName, + FontScalablePtr vals) +{ + FontPtr pfont; + int flags = 0; + long format = 0; /* It doesn't matter what format for just info */ + long fmask = 0; + int ret; + + ret = BitmapOpenScalable(fpe, &pfont, flags, entry, fileName, vals, + format, fmask, NULL); + if (ret != Successful) + return ret; + *pFontInfo = pfont->info; + + pfont->info.nprops = 0; + pfont->info.props = NULL; + pfont->info.isStringProp = NULL; + + (*pfont->unload_font)(pfont); + return Successful; +} + +static void +bitmapUnloadScalable (FontPtr pFont) +{ + BitmapFontPtr bitmapFont; + FontInfoPtr pfi; + int i, nencoding; + + bitmapFont = (BitmapFontPtr) pFont->fontPrivate; + pfi = &pFont->info; + free (pfi->props); + free (pfi->isStringProp); + if(bitmapFont->encoding) { + nencoding = (pFont->info.lastCol - pFont->info.firstCol + 1) * + (pFont->info.lastRow - pFont->info.firstRow + 1); + for(i=0; i<NUM_SEGMENTS(nencoding); i++) + free(bitmapFont->encoding[i]); + } + free (bitmapFont->encoding); + free (bitmapFont->bitmaps); + free (bitmapFont->ink_metrics); + free (bitmapFont->metrics); + free (pFont->fontPrivate); + DestroyFontRec (pFont); +} diff --git a/libXfont/src/bitmap/fontink.c b/libXfont/src/bitmap/fontink.c index 551b81b28..ad7091fa6 100644 --- a/libXfont/src/bitmap/fontink.c +++ b/libXfont/src/bitmap/fontink.c @@ -1,216 +1,216 @@ -/*
-
-Copyright 1990, 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.
-
-*/
-
-/*
- * Author: Keith Packard, MIT X Consortium
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <X11/fonts/fntfilst.h>
-#include <X11/fonts/bitmap.h>
-#include <X11/fonts/bdfint.h>
-
-static unsigned char ink_mask_msb[8] = {
- 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01,
-};
-
-static unsigned char ink_mask_lsb[8] = {
- 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80,
-};
-
-void
-FontCharInkMetrics(FontPtr pFont, CharInfoPtr pCI, xCharInfo *pInk)
-{
- int leftBearing,
- ascent,
- descent;
- register int vpos,
- hpos,
- bpos = 0;
- int bitmapByteWidth,
- bitmapByteWidthPadded;
- int bitmapBitWidth;
- int span;
- register unsigned char *p;
- unsigned char *ink_mask = 0;
- register int bmax;
- register unsigned char charbits;
-
- if (pFont->bit == MSBFirst)
- ink_mask = ink_mask_msb;
- else if (pFont->bit == LSBFirst)
- ink_mask = ink_mask_lsb;
- pInk->characterWidth = pCI->metrics.characterWidth;
- pInk->attributes = pCI->metrics.attributes;
-
- leftBearing = pCI->metrics.leftSideBearing;
- ascent = pCI->metrics.ascent;
- descent = pCI->metrics.descent;
- bitmapBitWidth = GLYPHWIDTHPIXELS(pCI);
- bitmapByteWidth = GLYPHWIDTHBYTES(pCI);
- bitmapByteWidthPadded = BYTES_PER_ROW(bitmapBitWidth, pFont->glyph);
- span = bitmapByteWidthPadded - bitmapByteWidth;
-
- p = (unsigned char *) pCI->bits;
- for (vpos = descent + ascent; --vpos >= 0;) {
- for (hpos = bitmapByteWidth; --hpos >= 0;) {
- if (*p++ != 0)
- goto found_ascent;
- }
- p += span;
- }
- /*
- * special case -- font with no bits gets all zeros
- */
- pInk->leftSideBearing = leftBearing;
- pInk->rightSideBearing = leftBearing;
- pInk->ascent = 0;
- pInk->descent = 0;
- return;
-found_ascent:
- pInk->ascent = vpos - descent + 1;
-
- p = ((unsigned char *) pCI->bits) + bitmapByteWidthPadded *
- (descent + ascent - 1) + bitmapByteWidth;
-
- for (vpos = descent + ascent; --vpos >= 0;) {
- for (hpos = bitmapByteWidth; --hpos >= 0;) {
- if (*--p != 0)
- goto found_descent;
- }
- p -= span;
- }
-found_descent:
- pInk->descent = vpos - ascent + 1;
-
- bmax = 8;
- for (hpos = 0; hpos < bitmapByteWidth; hpos++) {
- charbits = 0;
- p = (unsigned char *) pCI->bits + hpos;
- for (vpos = descent + ascent; --vpos >= 0; p += bitmapByteWidthPadded)
- charbits |= *p;
- if (charbits) {
- if (hpos == bitmapByteWidth - 1)
- bmax = bitmapBitWidth - (hpos << 3);
- p = ink_mask;
- for (bpos = bmax; --bpos >= 0;) {
- if (charbits & *p++)
- goto found_left;
- }
- }
- }
-found_left:
- pInk->leftSideBearing = leftBearing + (hpos << 3) + bmax - bpos - 1;
-
- bmax = bitmapBitWidth - ((bitmapByteWidth - 1) << 3);
- for (hpos = bitmapByteWidth; --hpos >= 0;) {
- charbits = 0;
- p = (unsigned char *) pCI->bits + hpos;
- for (vpos = descent + ascent; --vpos >= 0; p += bitmapByteWidthPadded)
- charbits |= *p;
- if (charbits) {
- p = ink_mask + bmax;
- for (bpos = bmax; --bpos >= 0;) {
- if (charbits & *--p)
- goto found_right;
- }
- }
- bmax = 8;
- }
-found_right:
- pInk->rightSideBearing = leftBearing + (hpos << 3) + bpos + 1;
-}
-
-#define ISBITONMSB(x, line) ((line)[(x)/8] & (1 << (7-((x)%8))))
-#define SETBITMSB(x, line) ((line)[(x)/8] |= (1 << (7-((x)%8))))
-#define ISBITONLSB(x, line) ((line)[(x)/8] & (1 << ((x)%8)))
-#define SETBITLSB(x, line) ((line)[(x)/8] |= (1 << ((x)%8)))
-
-#define Min(a,b) ((a)<(b)?(a):(b))
-#define Max(a,b) ((a)>(b)?(a):(b))
-
-void
-FontCharReshape(FontPtr pFont, CharInfoPtr pSrc, CharInfoPtr pDst)
-{
- int x,
- y;
- unsigned char *in_line,
- *out_line;
- unsigned char *oldglyph,
- *newglyph;
- int inwidth;
- int outwidth,
- outheight;
- int out_bytes,
- in_bytes;
- int y_min,
- y_max,
- x_min,
- x_max;
-
- newglyph = (unsigned char *) pDst->bits;
- outwidth = pDst->metrics.rightSideBearing - pDst->metrics.leftSideBearing;
- outheight = pDst->metrics.descent + pDst->metrics.ascent;
- out_bytes = BYTES_PER_ROW(outwidth, pFont->glyph);
-
- oldglyph = (unsigned char *) pSrc->bits;
- inwidth = pSrc->metrics.rightSideBearing - pSrc->metrics.leftSideBearing;
- in_bytes = BYTES_PER_ROW(inwidth, pFont->glyph);
-
- bzero(newglyph, out_bytes * outheight);
- in_line = oldglyph;
- out_line = newglyph;
- y_min = Max(-pSrc->metrics.ascent, -pDst->metrics.ascent);
- y_max = Min(pSrc->metrics.descent, pDst->metrics.descent);
- x_min = Max(pSrc->metrics.leftSideBearing, pDst->metrics.leftSideBearing);
- x_max = Min(pSrc->metrics.rightSideBearing, pDst->metrics.rightSideBearing);
- in_line += (y_min + pSrc->metrics.ascent) * in_bytes;
- out_line += (y_min + pDst->metrics.ascent) * out_bytes;
- if (pFont->bit == MSBFirst) {
- for (y = y_min; y < y_max; y++) {
- for (x = x_min; x < x_max; x++) {
- if (ISBITONMSB(x - pSrc->metrics.leftSideBearing, in_line))
- SETBITMSB(x - pDst->metrics.leftSideBearing, out_line);
- }
- in_line += in_bytes;
- out_line += out_bytes;
- }
- } else {
- for (y = y_min; y < y_max; y++) {
- for (x = x_min; x < x_max; x++) {
- if (ISBITONLSB(x - pSrc->metrics.leftSideBearing, in_line))
- SETBITLSB(x - pDst->metrics.leftSideBearing, out_line);
- }
- in_line += in_bytes;
- out_line += out_bytes;
- }
- }
-}
+/* + +Copyright 1990, 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. + +*/ + +/* + * Author: Keith Packard, MIT X Consortium + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <X11/fonts/fntfilst.h> +#include <X11/fonts/bitmap.h> +#include <X11/fonts/bdfint.h> + +static unsigned char ink_mask_msb[8] = { + 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01, +}; + +static unsigned char ink_mask_lsb[8] = { + 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, +}; + +void +FontCharInkMetrics(FontPtr pFont, CharInfoPtr pCI, xCharInfo *pInk) +{ + int leftBearing, + ascent, + descent; + register int vpos, + hpos, + bpos = 0; + int bitmapByteWidth, + bitmapByteWidthPadded; + int bitmapBitWidth; + int span; + register unsigned char *p; + unsigned char *ink_mask = 0; + register int bmax; + register unsigned char charbits; + + if (pFont->bit == MSBFirst) + ink_mask = ink_mask_msb; + else if (pFont->bit == LSBFirst) + ink_mask = ink_mask_lsb; + pInk->characterWidth = pCI->metrics.characterWidth; + pInk->attributes = pCI->metrics.attributes; + + leftBearing = pCI->metrics.leftSideBearing; + ascent = pCI->metrics.ascent; + descent = pCI->metrics.descent; + bitmapBitWidth = GLYPHWIDTHPIXELS(pCI); + bitmapByteWidth = GLYPHWIDTHBYTES(pCI); + bitmapByteWidthPadded = BYTES_PER_ROW(bitmapBitWidth, pFont->glyph); + span = bitmapByteWidthPadded - bitmapByteWidth; + + p = (unsigned char *) pCI->bits; + for (vpos = descent + ascent; --vpos >= 0;) { + for (hpos = bitmapByteWidth; --hpos >= 0;) { + if (*p++ != 0) + goto found_ascent; + } + p += span; + } + /* + * special case -- font with no bits gets all zeros + */ + pInk->leftSideBearing = leftBearing; + pInk->rightSideBearing = leftBearing; + pInk->ascent = 0; + pInk->descent = 0; + return; +found_ascent: + pInk->ascent = vpos - descent + 1; + + p = ((unsigned char *) pCI->bits) + bitmapByteWidthPadded * + (descent + ascent - 1) + bitmapByteWidth; + + for (vpos = descent + ascent; --vpos >= 0;) { + for (hpos = bitmapByteWidth; --hpos >= 0;) { + if (*--p != 0) + goto found_descent; + } + p -= span; + } +found_descent: + pInk->descent = vpos - ascent + 1; + + bmax = 8; + for (hpos = 0; hpos < bitmapByteWidth; hpos++) { + charbits = 0; + p = (unsigned char *) pCI->bits + hpos; + for (vpos = descent + ascent; --vpos >= 0; p += bitmapByteWidthPadded) + charbits |= *p; + if (charbits) { + if (hpos == bitmapByteWidth - 1) + bmax = bitmapBitWidth - (hpos << 3); + p = ink_mask; + for (bpos = bmax; --bpos >= 0;) { + if (charbits & *p++) + goto found_left; + } + } + } +found_left: + pInk->leftSideBearing = leftBearing + (hpos << 3) + bmax - bpos - 1; + + bmax = bitmapBitWidth - ((bitmapByteWidth - 1) << 3); + for (hpos = bitmapByteWidth; --hpos >= 0;) { + charbits = 0; + p = (unsigned char *) pCI->bits + hpos; + for (vpos = descent + ascent; --vpos >= 0; p += bitmapByteWidthPadded) + charbits |= *p; + if (charbits) { + p = ink_mask + bmax; + for (bpos = bmax; --bpos >= 0;) { + if (charbits & *--p) + goto found_right; + } + } + bmax = 8; + } +found_right: + pInk->rightSideBearing = leftBearing + (hpos << 3) + bpos + 1; +} + +#define ISBITONMSB(x, line) ((line)[(x)/8] & (1 << (7-((x)%8)))) +#define SETBITMSB(x, line) ((line)[(x)/8] |= (1 << (7-((x)%8)))) +#define ISBITONLSB(x, line) ((line)[(x)/8] & (1 << ((x)%8))) +#define SETBITLSB(x, line) ((line)[(x)/8] |= (1 << ((x)%8))) + +#define Min(a,b) ((a)<(b)?(a):(b)) +#define Max(a,b) ((a)>(b)?(a):(b)) + +void +FontCharReshape(FontPtr pFont, CharInfoPtr pSrc, CharInfoPtr pDst) +{ + int x, + y; + unsigned char *in_line, + *out_line; + unsigned char *oldglyph, + *newglyph; + int inwidth; + int outwidth, + outheight; + int out_bytes, + in_bytes; + int y_min, + y_max, + x_min, + x_max; + + newglyph = (unsigned char *) pDst->bits; + outwidth = pDst->metrics.rightSideBearing - pDst->metrics.leftSideBearing; + outheight = pDst->metrics.descent + pDst->metrics.ascent; + out_bytes = BYTES_PER_ROW(outwidth, pFont->glyph); + + oldglyph = (unsigned char *) pSrc->bits; + inwidth = pSrc->metrics.rightSideBearing - pSrc->metrics.leftSideBearing; + in_bytes = BYTES_PER_ROW(inwidth, pFont->glyph); + + bzero(newglyph, out_bytes * outheight); + in_line = oldglyph; + out_line = newglyph; + y_min = Max(-pSrc->metrics.ascent, -pDst->metrics.ascent); + y_max = Min(pSrc->metrics.descent, pDst->metrics.descent); + x_min = Max(pSrc->metrics.leftSideBearing, pDst->metrics.leftSideBearing); + x_max = Min(pSrc->metrics.rightSideBearing, pDst->metrics.rightSideBearing); + in_line += (y_min + pSrc->metrics.ascent) * in_bytes; + out_line += (y_min + pDst->metrics.ascent) * out_bytes; + if (pFont->bit == MSBFirst) { + for (y = y_min; y < y_max; y++) { + for (x = x_min; x < x_max; x++) { + if (ISBITONMSB(x - pSrc->metrics.leftSideBearing, in_line)) + SETBITMSB(x - pDst->metrics.leftSideBearing, out_line); + } + in_line += in_bytes; + out_line += out_bytes; + } + } else { + for (y = y_min; y < y_max; y++) { + for (x = x_min; x < x_max; x++) { + if (ISBITONLSB(x - pSrc->metrics.leftSideBearing, in_line)) + SETBITLSB(x - pDst->metrics.leftSideBearing, out_line); + } + in_line += in_bytes; + out_line += out_bytes; + } + } +} diff --git a/libXfont/src/bitmap/pcfread.c b/libXfont/src/bitmap/pcfread.c index 759319e94..32f9856fa 100644 --- a/libXfont/src/bitmap/pcfread.c +++ b/libXfont/src/bitmap/pcfread.c @@ -1,780 +1,780 @@ -/*
-
-Copyright 1990, 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.
-
-*/
-
-/*
- * Author: Keith Packard, MIT X Consortium
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <X11/fonts/fntfilst.h>
-#include <X11/fonts/bitmap.h>
-#include <X11/fonts/pcf.h>
-
-#ifndef MAX
-#define MAX(a,b) (((a)>(b)) ? a : b)
-#endif
-
-#include <stdarg.h>
-#include <stdint.h>
-
-void
-pcfError(const char* message, ...)
-{
- va_list args;
-
- va_start(args, message);
-
- fprintf(stderr, "PCF Error: ");
- vfprintf(stderr, message, args);
- va_end(args);
-}
-
-/* Read PCF font files */
-
-static void pcfUnloadFont ( FontPtr pFont );
-static int position;
-
-
-#define IS_EOF(file) ((file)->eof == BUFFILEEOF)
-
-#define FONT_FILE_GETC_ERR(f) (tmp = FontFileGetc(f), BAIL_ON_EOF)
-
-static int
-pcfGetLSB32(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(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(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(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);
- if (IS_EOF(file)) return (PCFTablePtr) NULL;
- if (count < 0 || count > INT32_MAX / sizeof(PCFTableRec)) {
- pcfError("pcfReadTOC(): invalid file format\n");
- return NULL;
- }
- tables = malloc(count * sizeof(PCFTableRec));
- if (!tables) {
- pcfError("pcfReadTOC(): Couldn't allocate tables (%d*%d)\n", count, sizeof(PCFTableRec));
- 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);
- if (IS_EOF(file)) goto Bail;
- }
-
- *countp = count;
- return tables;
-
- Bail:
- free(tables);
- return (PCFTablePtr) NULL;
-}
-
-/*
- * 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 Bool
-pcfGetMetric(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);
- if (IS_EOF(file)) return FALSE;
-
- return TRUE;
-}
-
-static Bool
-pcfGetCompressedMetric(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;
- if (IS_EOF(file)) return FALSE;
-
- return TRUE;
-}
-
-/*
- * Position the file to the begining of the specified table
- * in the font file
- */
-static Bool
-pcfSeekToType(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 (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(FontInfoPtr pFontInfo, FontFilePtr file,
- PCFTablePtr tables, int ntables)
-{
- FontPropPtr props = 0;
- int nprops;
- char *isStringProp = 0;
- CARD32 format;
- int i;
- CARD32 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);
- if (nprops <= 0 || nprops > INT32_MAX / sizeof(FontPropRec)) {
- pcfError("pcfGetProperties(): invalid nprops value (%d)\n", nprops);
- goto Bail;
- }
- if (IS_EOF(file)) goto Bail;
- props = malloc(nprops * sizeof(FontPropRec));
- if (!props) {
- pcfError("pcfGetProperties(): Couldn't allocate props (%d*%d)\n", nprops, sizeof(FontPropRec));
- goto Bail;
- }
- isStringProp = malloc(nprops * sizeof(char));
- if (!isStringProp) {
- pcfError("pcfGetProperties(): Couldn't allocate isStringProp (%d*%d)\n", nprops, sizeof(char));
- 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);
- if (props[i].name < 0
- || (isStringProp[i] != 0 && isStringProp[i] != 1)
- || (isStringProp[i] && props[i].value < 0)) {
- pcfError("pcfGetProperties(): invalid file format %d %d %d\n",
- props[i].name, isStringProp[i], props[i].value);
- goto Bail;
- }
- if (IS_EOF(file)) goto Bail;
- }
- /* 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);
- (void)FontFileSkip(file, i);
- position += i;
- }
- if (IS_EOF(file)) goto Bail;
- string_size = pcfGetINT32(file, format);
- if (string_size < 0) goto Bail;
- if (IS_EOF(file)) goto Bail;
- strings = malloc(string_size);
- if (!strings) {
- pcfError("pcfGetProperties(): Couldn't allocate strings (%d)\n", string_size);
- goto Bail;
- }
- FontFileRead(file, strings, string_size);
- if (IS_EOF(file)) goto Bail;
- 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);
- }
- }
- free(strings);
- pFontInfo->isStringProp = isStringProp;
- pFontInfo->props = props;
- pFontInfo->nprops = nprops;
- return TRUE;
-Bail:
- free(isStringProp);
- free(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(FontInfoPtr pFontInfo, FontFilePtr file,
- PCFTablePtr tables, int ntables, CARD32 type)
-{
- CARD32 format;
- CARD32 size;
-
- if (!pcfSeekToType(file, tables, ntables, type, &format, &size) ||
- IS_EOF(file))
- 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);
- if (IS_EOF(file)) goto Bail;
- if (!pcfGetMetric(file, format, &pFontInfo->minbounds))
- goto Bail;
- if (!pcfGetMetric(file, format, &pFontInfo->maxbounds))
- goto Bail;
- if (PCF_FORMAT_MATCH(format, PCF_ACCEL_W_INKBOUNDS)) {
- if (!pcfGetMetric(file, format, &pFontInfo->ink_minbounds))
- goto Bail;
- if (!pcfGetMetric(file, format, &pFontInfo->ink_maxbounds))
- goto Bail;
- } else {
- pFontInfo->ink_minbounds = pFontInfo->minbounds;
- pFontInfo->ink_maxbounds = pFontInfo->maxbounds;
- }
- return TRUE;
-Bail:
- return FALSE;
-}
-
-int
-pcfReadFont(FontPtr pFont, FontFilePtr file,
- int bit, int byte, int glyph, int 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 = 0;
- int encodingOffset;
- CARD32 bitmapSizes[GLYPHPADOPTIONS];
- CARD32 *offsets = 0;
- Bool hasBDFAccelerators;
-
- pFont->info.nprops = 0;
- 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);
- if (IS_EOF(file)) goto Bail;
- if (nmetrics < 0 || nmetrics > INT32_MAX / sizeof(CharInfoRec)) {
- pcfError("pcfReadFont(): invalid file format\n");
- goto Bail;
- }
- metrics = malloc(nmetrics * sizeof(CharInfoRec));
- if (!metrics) {
- pcfError("pcfReadFont(): Couldn't allocate metrics (%d*%d)\n", nmetrics, sizeof(CharInfoRec));
- goto Bail;
- }
- for (i = 0; i < nmetrics; i++)
- if (PCF_FORMAT_MATCH(format, PCF_DEFAULT_FORMAT)) {
- if (!pcfGetMetric(file, format, &(metrics + i)->metrics))
- goto Bail;
- } else {
- if (!pcfGetCompressedMetric(file, format, &(metrics + i)->metrics))
- goto Bail;
- }
-
- /* 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 || IS_EOF(file))
- goto Bail;
- /* nmetrics is already ok, so nbitmap also is */
- offsets = malloc(nbitmaps * sizeof(CARD32));
- if (!offsets) {
- pcfError("pcfReadFont(): Couldn't allocate offsets (%d*%d)\n", nbitmaps, sizeof(CARD32));
- goto Bail;
- }
- for (i = 0; i < nbitmaps; i++) {
- offsets[i] = pcfGetINT32(file, format);
- if (IS_EOF(file)) goto Bail;
- }
-
- for (i = 0; i < GLYPHPADOPTIONS; i++) {
- bitmapSizes[i] = pcfGetINT32(file, format);
- if (IS_EOF(file)) goto Bail;
- if (bitmapSizes[i] < 0) goto Bail;
- }
-
- sizebitmaps = bitmapSizes[PCF_GLYPH_PAD_INDEX(format)];
- /* guard against completely empty font */
- bitmaps = malloc(sizebitmaps ? sizebitmaps : 1);
- if (!bitmaps) {
- pcfError("pcfReadFont(): Couldn't allocate bitmaps (%d)\n", sizebitmaps ? sizebitmaps : 1);
- goto Bail;
- }
- FontFileRead(file, bitmaps, sizebitmaps);
- if (IS_EOF(file)) goto Bail;
- position += sizebitmaps;
-
- if (PCF_BIT_ORDER(format) != bit)
- BitOrderInvert((unsigned char *)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((unsigned char *)bitmaps, sizebitmaps);
- break;
- case 4:
- FourByteSwap((unsigned char *)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 = malloc(sizepadbitmaps);
- if (!padbitmaps) {
- pcfError("pcfReadFont(): Couldn't allocate padbitmaps (%d)\n", sizepadbitmaps);
- 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);
- }
- free(bitmaps);
- bitmaps = padbitmaps;
- }
- for (i = 0; i < nbitmaps; i++)
- metrics[i].bits = bitmaps + offsets[i];
-
- free(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 (IS_EOF(file)) goto Bail;
- if (nink_metrics != nmetrics)
- goto Bail;
- /* nmetrics already checked */
- ink_metrics = malloc(nink_metrics * sizeof(xCharInfo));
- if (!ink_metrics) {
- pcfError("pcfReadFont(): Couldn't allocate ink_metrics (%d*%d)\n", nink_metrics, sizeof(xCharInfo));
- goto Bail;
- }
- for (i = 0; i < nink_metrics; i++)
- if (PCF_FORMAT_MATCH(format, PCF_DEFAULT_FORMAT)) {
- if (!pcfGetMetric(file, format, ink_metrics + i))
- goto Bail;
- } else {
- if (!pcfGetCompressedMetric(file, format, ink_metrics + i))
- 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;
-
- 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);
- if (IS_EOF(file)) goto Bail;
- if (pFont->info.firstCol > pFont->info.lastCol ||
- pFont->info.firstRow > pFont->info.lastRow ||
- pFont->info.lastCol-pFont->info.firstCol > 255) goto Bail;
-
- nencoding = (pFont->info.lastCol - pFont->info.firstCol + 1) *
- (pFont->info.lastRow - pFont->info.firstRow + 1);
-
- encoding = calloc(NUM_SEGMENTS(nencoding), sizeof(CharInfoPtr*));
- if (!encoding) {
- pcfError("pcfReadFont(): Couldn't allocate encoding (%d*%d)\n", nencoding, sizeof(CharInfoPtr));
- goto Bail;
- }
-
- pFont->info.allExist = TRUE;
- for (i = 0; i < nencoding; i++) {
- encodingOffset = pcfGetINT16(file, format);
- if (IS_EOF(file)) goto Bail;
- if (encodingOffset == 0xFFFF) {
- pFont->info.allExist = FALSE;
- } else {
- if(!encoding[SEGMENT_MAJOR(i)]) {
- encoding[SEGMENT_MAJOR(i)]=
- calloc(BITMAP_FONT_SEGMENT_SIZE, sizeof(CharInfoPtr));
- if(!encoding[SEGMENT_MAJOR(i)])
- goto Bail;
- }
- ACCESSENCODINGL(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 = malloc(sizeof *bitmapFont);
- if (!bitmapFont) {
- pcfError("pcfReadFont(): Couldn't allocate bitmapFont (%d)\n", sizeof *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 = ACCESSENCODING(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;
- free(tables);
- return Successful;
-Bail:
- free(ink_metrics);
- if(encoding) {
- for(i=0; i<NUM_SEGMENTS(nencoding); i++)
- free(encoding[i]);
- }
- free(encoding);
- free(bitmaps);
- free(metrics);
- free(pFont->info.props);
- pFont->info.nprops = 0;
- pFont->info.props = 0;
- free (pFont->info.isStringProp);
- free(bitmapFont);
- free(tables);
- free(offsets);
- return AllocError;
-}
-
-int
-pcfReadFontInfo(FontInfoPtr pFontInfo, FontFilePtr file)
-{
- PCFTablePtr tables;
- int ntables;
- CARD32 format;
- CARD32 size;
- int nencoding;
- Bool hasBDFAccelerators;
-
- pFontInfo->isStringProp = NULL;
- pFontInfo->props = NULL;
- pFontInfo->nprops = 0;
-
- 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);
- if (IS_EOF(file)) goto Bail;
- if (pFontInfo->firstCol > pFontInfo->lastCol ||
- pFontInfo->firstRow > pFontInfo->lastRow ||
- pFontInfo->lastCol-pFontInfo->firstCol > 255) goto Bail;
-
- nencoding = (pFontInfo->lastCol - pFontInfo->firstCol + 1) *
- (pFontInfo->lastRow - pFontInfo->firstRow + 1);
-
- pFontInfo->allExist = TRUE;
- while (nencoding--) {
- if (pcfGetINT16(file, format) == 0xFFFF)
- pFontInfo->allExist = FALSE;
- if (IS_EOF(file)) goto Bail;
- }
- if (IS_EOF(file)) goto Bail;
-
- /* BDF style accelerators (i.e. bounds based on encoded glyphs) */
-
- if (hasBDFAccelerators)
- if (!pcfGetAccel (pFontInfo, file, tables, ntables, PCF_BDF_ACCELERATORS))
- goto Bail;
-
- free(tables);
- return Successful;
-Bail:
- pFontInfo->nprops = 0;
- free (pFontInfo->props);
- free (pFontInfo->isStringProp);
- free(tables);
- return AllocError;
-}
-
-static void
-pcfUnloadFont(FontPtr pFont)
-{
- BitmapFontPtr bitmapFont;
- int i,nencoding;
-
- bitmapFont = (BitmapFontPtr) pFont->fontPrivate;
- free(bitmapFont->ink_metrics);
- if(bitmapFont->encoding) {
- nencoding = (pFont->info.lastCol - pFont->info.firstCol + 1) *
- (pFont->info.lastRow - pFont->info.firstRow + 1);
- for(i=0; i<NUM_SEGMENTS(nencoding); i++)
- free(bitmapFont->encoding[i]);
- }
- free(bitmapFont->encoding);
- free(bitmapFont->bitmaps);
- free(bitmapFont->metrics);
- free(pFont->info.isStringProp);
- free(pFont->info.props);
- free(bitmapFont);
- DestroyFontRec(pFont);
-}
+/* + +Copyright 1990, 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. + +*/ + +/* + * Author: Keith Packard, MIT X Consortium + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <X11/fonts/fntfilst.h> +#include <X11/fonts/bitmap.h> +#include <X11/fonts/pcf.h> + +#ifndef MAX +#define MAX(a,b) (((a)>(b)) ? a : b) +#endif + +#include <stdarg.h> +#include <stdint.h> + +void +pcfError(const char* message, ...) +{ + va_list args; + + va_start(args, message); + + fprintf(stderr, "PCF Error: "); + vfprintf(stderr, message, args); + va_end(args); +} + +/* Read PCF font files */ + +static void pcfUnloadFont ( FontPtr pFont ); +static int position; + + +#define IS_EOF(file) ((file)->eof == BUFFILEEOF) + +#define FONT_FILE_GETC_ERR(f) (tmp = FontFileGetc(f), BAIL_ON_EOF) + +static int +pcfGetLSB32(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(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(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(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); + if (IS_EOF(file)) return (PCFTablePtr) NULL; + if (count < 0 || count > INT32_MAX / sizeof(PCFTableRec)) { + pcfError("pcfReadTOC(): invalid file format\n"); + return NULL; + } + tables = malloc(count * sizeof(PCFTableRec)); + if (!tables) { + pcfError("pcfReadTOC(): Couldn't allocate tables (%d*%d)\n", count, sizeof(PCFTableRec)); + 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); + if (IS_EOF(file)) goto Bail; + } + + *countp = count; + return tables; + + Bail: + free(tables); + return (PCFTablePtr) NULL; +} + +/* + * 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 Bool +pcfGetMetric(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); + if (IS_EOF(file)) return FALSE; + + return TRUE; +} + +static Bool +pcfGetCompressedMetric(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; + if (IS_EOF(file)) return FALSE; + + return TRUE; +} + +/* + * Position the file to the begining of the specified table + * in the font file + */ +static Bool +pcfSeekToType(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 (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(FontInfoPtr pFontInfo, FontFilePtr file, + PCFTablePtr tables, int ntables) +{ + FontPropPtr props = 0; + int nprops; + char *isStringProp = 0; + CARD32 format; + int i; + CARD32 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); + if (nprops <= 0 || nprops > INT32_MAX / sizeof(FontPropRec)) { + pcfError("pcfGetProperties(): invalid nprops value (%d)\n", nprops); + goto Bail; + } + if (IS_EOF(file)) goto Bail; + props = malloc(nprops * sizeof(FontPropRec)); + if (!props) { + pcfError("pcfGetProperties(): Couldn't allocate props (%d*%d)\n", nprops, sizeof(FontPropRec)); + goto Bail; + } + isStringProp = malloc(nprops * sizeof(char)); + if (!isStringProp) { + pcfError("pcfGetProperties(): Couldn't allocate isStringProp (%d*%d)\n", nprops, sizeof(char)); + 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); + if (props[i].name < 0 + || (isStringProp[i] != 0 && isStringProp[i] != 1) + || (isStringProp[i] && props[i].value < 0)) { + pcfError("pcfGetProperties(): invalid file format %d %d %d\n", + props[i].name, isStringProp[i], props[i].value); + goto Bail; + } + if (IS_EOF(file)) goto Bail; + } + /* 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); + (void)FontFileSkip(file, i); + position += i; + } + if (IS_EOF(file)) goto Bail; + string_size = pcfGetINT32(file, format); + if (string_size < 0) goto Bail; + if (IS_EOF(file)) goto Bail; + strings = malloc(string_size); + if (!strings) { + pcfError("pcfGetProperties(): Couldn't allocate strings (%d)\n", string_size); + goto Bail; + } + FontFileRead(file, strings, string_size); + if (IS_EOF(file)) goto Bail; + 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); + } + } + free(strings); + pFontInfo->isStringProp = isStringProp; + pFontInfo->props = props; + pFontInfo->nprops = nprops; + return TRUE; +Bail: + free(isStringProp); + free(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(FontInfoPtr pFontInfo, FontFilePtr file, + PCFTablePtr tables, int ntables, CARD32 type) +{ + CARD32 format; + CARD32 size; + + if (!pcfSeekToType(file, tables, ntables, type, &format, &size) || + IS_EOF(file)) + 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); + if (IS_EOF(file)) goto Bail; + if (!pcfGetMetric(file, format, &pFontInfo->minbounds)) + goto Bail; + if (!pcfGetMetric(file, format, &pFontInfo->maxbounds)) + goto Bail; + if (PCF_FORMAT_MATCH(format, PCF_ACCEL_W_INKBOUNDS)) { + if (!pcfGetMetric(file, format, &pFontInfo->ink_minbounds)) + goto Bail; + if (!pcfGetMetric(file, format, &pFontInfo->ink_maxbounds)) + goto Bail; + } else { + pFontInfo->ink_minbounds = pFontInfo->minbounds; + pFontInfo->ink_maxbounds = pFontInfo->maxbounds; + } + return TRUE; +Bail: + return FALSE; +} + +int +pcfReadFont(FontPtr pFont, FontFilePtr file, + int bit, int byte, int glyph, int 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 = 0; + int encodingOffset; + CARD32 bitmapSizes[GLYPHPADOPTIONS]; + CARD32 *offsets = 0; + Bool hasBDFAccelerators; + + pFont->info.nprops = 0; + 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); + if (IS_EOF(file)) goto Bail; + if (nmetrics < 0 || nmetrics > INT32_MAX / sizeof(CharInfoRec)) { + pcfError("pcfReadFont(): invalid file format\n"); + goto Bail; + } + metrics = malloc(nmetrics * sizeof(CharInfoRec)); + if (!metrics) { + pcfError("pcfReadFont(): Couldn't allocate metrics (%d*%d)\n", nmetrics, sizeof(CharInfoRec)); + goto Bail; + } + for (i = 0; i < nmetrics; i++) + if (PCF_FORMAT_MATCH(format, PCF_DEFAULT_FORMAT)) { + if (!pcfGetMetric(file, format, &(metrics + i)->metrics)) + goto Bail; + } else { + if (!pcfGetCompressedMetric(file, format, &(metrics + i)->metrics)) + goto Bail; + } + + /* 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 || IS_EOF(file)) + goto Bail; + /* nmetrics is already ok, so nbitmap also is */ + offsets = malloc(nbitmaps * sizeof(CARD32)); + if (!offsets) { + pcfError("pcfReadFont(): Couldn't allocate offsets (%d*%d)\n", nbitmaps, sizeof(CARD32)); + goto Bail; + } + for (i = 0; i < nbitmaps; i++) { + offsets[i] = pcfGetINT32(file, format); + if (IS_EOF(file)) goto Bail; + } + + for (i = 0; i < GLYPHPADOPTIONS; i++) { + bitmapSizes[i] = pcfGetINT32(file, format); + if (IS_EOF(file)) goto Bail; + if (bitmapSizes[i] < 0) goto Bail; + } + + sizebitmaps = bitmapSizes[PCF_GLYPH_PAD_INDEX(format)]; + /* guard against completely empty font */ + bitmaps = malloc(sizebitmaps ? sizebitmaps : 1); + if (!bitmaps) { + pcfError("pcfReadFont(): Couldn't allocate bitmaps (%d)\n", sizebitmaps ? sizebitmaps : 1); + goto Bail; + } + FontFileRead(file, bitmaps, sizebitmaps); + if (IS_EOF(file)) goto Bail; + position += sizebitmaps; + + if (PCF_BIT_ORDER(format) != bit) + BitOrderInvert((unsigned char *)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((unsigned char *)bitmaps, sizebitmaps); + break; + case 4: + FourByteSwap((unsigned char *)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 = malloc(sizepadbitmaps); + if (!padbitmaps) { + pcfError("pcfReadFont(): Couldn't allocate padbitmaps (%d)\n", sizepadbitmaps); + 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); + } + free(bitmaps); + bitmaps = padbitmaps; + } + for (i = 0; i < nbitmaps; i++) + metrics[i].bits = bitmaps + offsets[i]; + + free(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 (IS_EOF(file)) goto Bail; + if (nink_metrics != nmetrics) + goto Bail; + /* nmetrics already checked */ + ink_metrics = malloc(nink_metrics * sizeof(xCharInfo)); + if (!ink_metrics) { + pcfError("pcfReadFont(): Couldn't allocate ink_metrics (%d*%d)\n", nink_metrics, sizeof(xCharInfo)); + goto Bail; + } + for (i = 0; i < nink_metrics; i++) + if (PCF_FORMAT_MATCH(format, PCF_DEFAULT_FORMAT)) { + if (!pcfGetMetric(file, format, ink_metrics + i)) + goto Bail; + } else { + if (!pcfGetCompressedMetric(file, format, ink_metrics + i)) + 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; + + 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); + if (IS_EOF(file)) goto Bail; + if (pFont->info.firstCol > pFont->info.lastCol || + pFont->info.firstRow > pFont->info.lastRow || + pFont->info.lastCol-pFont->info.firstCol > 255) goto Bail; + + nencoding = (pFont->info.lastCol - pFont->info.firstCol + 1) * + (pFont->info.lastRow - pFont->info.firstRow + 1); + + encoding = calloc(NUM_SEGMENTS(nencoding), sizeof(CharInfoPtr*)); + if (!encoding) { + pcfError("pcfReadFont(): Couldn't allocate encoding (%d*%d)\n", nencoding, sizeof(CharInfoPtr)); + goto Bail; + } + + pFont->info.allExist = TRUE; + for (i = 0; i < nencoding; i++) { + encodingOffset = pcfGetINT16(file, format); + if (IS_EOF(file)) goto Bail; + if (encodingOffset == 0xFFFF) { + pFont->info.allExist = FALSE; + } else { + if(!encoding[SEGMENT_MAJOR(i)]) { + encoding[SEGMENT_MAJOR(i)]= + calloc(BITMAP_FONT_SEGMENT_SIZE, sizeof(CharInfoPtr)); + if(!encoding[SEGMENT_MAJOR(i)]) + goto Bail; + } + ACCESSENCODINGL(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 = malloc(sizeof *bitmapFont); + if (!bitmapFont) { + pcfError("pcfReadFont(): Couldn't allocate bitmapFont (%d)\n", sizeof *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 = ACCESSENCODING(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; + free(tables); + return Successful; +Bail: + free(ink_metrics); + if(encoding) { + for(i=0; i<NUM_SEGMENTS(nencoding); i++) + free(encoding[i]); + } + free(encoding); + free(bitmaps); + free(metrics); + free(pFont->info.props); + pFont->info.nprops = 0; + pFont->info.props = 0; + free (pFont->info.isStringProp); + free(bitmapFont); + free(tables); + free(offsets); + return AllocError; +} + +int +pcfReadFontInfo(FontInfoPtr pFontInfo, FontFilePtr file) +{ + PCFTablePtr tables; + int ntables; + CARD32 format; + CARD32 size; + int nencoding; + Bool hasBDFAccelerators; + + pFontInfo->isStringProp = NULL; + pFontInfo->props = NULL; + pFontInfo->nprops = 0; + + 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); + if (IS_EOF(file)) goto Bail; + if (pFontInfo->firstCol > pFontInfo->lastCol || + pFontInfo->firstRow > pFontInfo->lastRow || + pFontInfo->lastCol-pFontInfo->firstCol > 255) goto Bail; + + nencoding = (pFontInfo->lastCol - pFontInfo->firstCol + 1) * + (pFontInfo->lastRow - pFontInfo->firstRow + 1); + + pFontInfo->allExist = TRUE; + while (nencoding--) { + if (pcfGetINT16(file, format) == 0xFFFF) + pFontInfo->allExist = FALSE; + if (IS_EOF(file)) goto Bail; + } + if (IS_EOF(file)) goto Bail; + + /* BDF style accelerators (i.e. bounds based on encoded glyphs) */ + + if (hasBDFAccelerators) + if (!pcfGetAccel (pFontInfo, file, tables, ntables, PCF_BDF_ACCELERATORS)) + goto Bail; + + free(tables); + return Successful; +Bail: + pFontInfo->nprops = 0; + free (pFontInfo->props); + free (pFontInfo->isStringProp); + free(tables); + return AllocError; +} + +static void +pcfUnloadFont(FontPtr pFont) +{ + BitmapFontPtr bitmapFont; + int i,nencoding; + + bitmapFont = (BitmapFontPtr) pFont->fontPrivate; + free(bitmapFont->ink_metrics); + if(bitmapFont->encoding) { + nencoding = (pFont->info.lastCol - pFont->info.firstCol + 1) * + (pFont->info.lastRow - pFont->info.firstRow + 1); + for(i=0; i<NUM_SEGMENTS(nencoding); i++) + free(bitmapFont->encoding[i]); + } + free(bitmapFont->encoding); + free(bitmapFont->bitmaps); + free(bitmapFont->metrics); + free(pFont->info.isStringProp); + free(pFont->info.props); + free(bitmapFont); + DestroyFontRec(pFont); +} diff --git a/libXfont/src/bitmap/pcfwrite.c b/libXfont/src/bitmap/pcfwrite.c index 4c0771e2a..3ac07b359 100644 --- a/libXfont/src/bitmap/pcfwrite.c +++ b/libXfont/src/bitmap/pcfwrite.c @@ -1,466 +1,466 @@ -/*
-
-Copyright 1990, 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.
-
-*/
-
-/*
- * Author: Keith Packard, MIT X Consortium
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <X11/fonts/fntfilst.h>
-#include <X11/fonts/bitmap.h>
-#include <X11/fonts/pcf.h>
-
-/* Write PCF font files */
-
-static CARD32 current_position;
-
-static int
-pcfWrite(FontFilePtr file, char *b, int c)
-{
- current_position += c;
- return FontFileWrite(file, b, c);
-}
-
-static int
-pcfPutLSB32(FontFilePtr file, int c)
-{
- current_position += 4;
- (void) FontFilePutc(c, file);
- (void) FontFilePutc(c >> 8, file);
- (void) FontFilePutc(c >> 16, file);
- return FontFilePutc(c >> 24, file);
-}
-
-static int
-pcfPutINT32(FontFilePtr file, CARD32 format, int c)
-{
- current_position += 4;
- if (PCF_BYTE_ORDER(format) == MSBFirst) {
- (void) FontFilePutc(c >> 24, file);
- (void) FontFilePutc(c >> 16, file);
- (void) FontFilePutc(c >> 8, file);
- return FontFilePutc(c, file);
- } else {
- (void) FontFilePutc(c, file);
- (void) FontFilePutc(c >> 8, file);
- (void) FontFilePutc(c >> 16, file);
- return FontFilePutc(c >> 24, file);
- }
-}
-
-static int
-pcfPutINT16(FontFilePtr file, CARD32 format, int c)
-{
- current_position += 2;
- if (PCF_BYTE_ORDER(format) == MSBFirst) {
- (void) FontFilePutc(c >> 8, file);
- return FontFilePutc(c, file);
- } else {
- (void) FontFilePutc(c, file);
- return FontFilePutc(c >> 8, file);
- }
-}
-
-/*ARGSUSED*/
-static int
-pcfPutINT8(FontFilePtr file, CARD32 format, int c)
-{
- current_position += 1;
- return FontFilePutc(c, file);
-}
-
-static void
-pcfWriteTOC(FontFilePtr file, PCFTablePtr table, int count)
-{
- CARD32 version;
- int i;
-
- version = PCF_FILE_VERSION;
- pcfPutLSB32(file, version);
- pcfPutLSB32(file, count);
- for (i = 0; i < count; i++) {
- pcfPutLSB32(file, table->type);
- pcfPutLSB32(file, table->format);
- pcfPutLSB32(file, table->size);
- pcfPutLSB32(file, table->offset);
- table++;
- }
-}
-
-static void
-pcfPutCompressedMetric(FontFilePtr file, CARD32 format, xCharInfo *metric)
-{
- pcfPutINT8(file, format, metric->leftSideBearing + 0x80);
- pcfPutINT8(file, format, metric->rightSideBearing + 0x80);
- pcfPutINT8(file, format, metric->characterWidth + 0x80);
- pcfPutINT8(file, format, metric->ascent + 0x80);
- pcfPutINT8(file, format, metric->descent + 0x80);
-}
-
-static void
-pcfPutMetric(FontFilePtr file, CARD32 format, xCharInfo *metric)
-{
- pcfPutINT16(file, format, metric->leftSideBearing);
- pcfPutINT16(file, format, metric->rightSideBearing);
- pcfPutINT16(file, format, metric->characterWidth);
- pcfPutINT16(file, format, metric->ascent);
- pcfPutINT16(file, format, metric->descent);
- pcfPutINT16(file, format, metric->attributes);
-}
-
-static void
-pcfPutBitmap(FontFilePtr file, CARD32 format, CharInfoPtr pCI)
-{
- int count;
- unsigned char *bits;
-
- count = BYTES_FOR_GLYPH(pCI, PCF_GLYPH_PAD(format));
- bits = (unsigned char *) pCI->bits;
- current_position += count;
- while (count--)
- FontFilePutc(*bits++, file);
-}
-
-static void
-pcfPutAccel(FontFilePtr file, CARD32 format, FontInfoPtr pFontInfo)
-{
- pcfPutINT8(file, format, pFontInfo->noOverlap);
- pcfPutINT8(file, format, pFontInfo->constantMetrics);
- pcfPutINT8(file, format, pFontInfo->terminalFont);
- pcfPutINT8(file, format, pFontInfo->constantWidth);
- pcfPutINT8(file, format, pFontInfo->inkInside);
- pcfPutINT8(file, format, pFontInfo->inkMetrics);
- pcfPutINT8(file, format, pFontInfo->drawDirection);
- pcfPutINT8(file, format, 0);
- pcfPutINT32(file, format, pFontInfo->fontAscent);
- pcfPutINT32(file, format, pFontInfo->fontDescent);
- pcfPutINT32(file, format, pFontInfo->maxOverlap);
- pcfPutMetric(file, format, &pFontInfo->minbounds);
- pcfPutMetric(file, format, &pFontInfo->maxbounds);
- if (PCF_FORMAT_MATCH(format, PCF_ACCEL_W_INKBOUNDS)) {
- pcfPutMetric(file, format, &pFontInfo->ink_minbounds);
- pcfPutMetric(file, format, &pFontInfo->ink_maxbounds);
- }
-}
-
-#define S32 4
-#define S16 2
-#define S8 1
-
-#define Pad(s) (RoundUp(s) - (s))
-#define RoundUp(s) (((s) + 3) & ~3)
-
-#define Compressable(i) (-128 <= (i) && (i) <= 127)
-
-#define CanCompressMetric(m) (Compressable((m)->leftSideBearing) && \
- Compressable((m)->rightSideBearing) && \
- Compressable((m)->characterWidth) && \
- Compressable((m)->ascent) && \
- Compressable((m)->descent) && \
- (m)->attributes == 0)
-
-#define CanCompressMetrics(min,max) (CanCompressMetric(min) && CanCompressMetric(max))
-
-static char *
-pcfNameForAtom(Atom a)
-{
- return NameForAtom(a);
-}
-
-int
-pcfWriteFont(FontPtr pFont, FontFilePtr file)
-{
- PCFTableRec tables[32],
- *table;
- CARD32 mask,
- bit;
- int ntables;
- int size;
- CARD32 format;
- int i;
- int cur_table;
- int prop_string_size;
- int glyph_string_size;
- xCharInfo *minbounds,
- *maxbounds;
- xCharInfo *ink_minbounds,
- *ink_maxbounds;
- BitmapFontPtr bitmapFont;
- int nencodings = 0;
- int header_size;
- FontPropPtr offsetProps;
- int prop_pad = 0;
- char *atom_name;
- int glyph;
- CARD32 offset;
-
- bitmapFont = (BitmapFontPtr) pFont->fontPrivate;
- if (bitmapFont->bitmapExtra) {
- minbounds = &bitmapFont->bitmapExtra->info.minbounds;
- maxbounds = &bitmapFont->bitmapExtra->info.maxbounds;
- ink_minbounds = &bitmapFont->bitmapExtra->info.ink_minbounds;
- ink_maxbounds = &bitmapFont->bitmapExtra->info.ink_maxbounds;
- } else {
- minbounds = &pFont->info.minbounds;
- maxbounds = &pFont->info.maxbounds;
- ink_minbounds = &pFont->info.ink_minbounds;
- ink_maxbounds = &pFont->info.ink_maxbounds;
- }
- offsetProps = malloc(pFont->info.nprops * sizeof(FontPropRec));
- if (!offsetProps) {
- pcfError("pcfWriteFont(): Couldn't allocate offsetProps (%d*%d)", pFont->info.nprops, sizeof(FontPropRec));
- return AllocError;
- }
- prop_string_size = 0;
- for (i = 0; i < pFont->info.nprops; i++) {
- offsetProps[i].name = prop_string_size;
- prop_string_size += strlen(pcfNameForAtom(pFont->info.props[i].name)) + 1;
- if (pFont->info.isStringProp[i]) {
- offsetProps[i].value = prop_string_size;
- prop_string_size += strlen(pcfNameForAtom(pFont->info.props[i].value)) + 1;
- } else
- offsetProps[i].value = pFont->info.props[i].value;
- }
- format = PCF_FORMAT(pFont->bit, pFont->byte, pFont->glyph, pFont->scan);
- mask = 0xFFFFFFF;
- ntables = 0;
- table = tables;
- while (mask) {
- bit = lowbit(mask);
- mask &= ~bit;
- table->type = bit;
- switch (bit) {
- case PCF_PROPERTIES:
- table->format = PCF_DEFAULT_FORMAT | format;
- size = S32 + S32 + (S32 + S8 + S32) * pFont->info.nprops;
- prop_pad = Pad(size);
- table->size = RoundUp(size) + S32 +
- RoundUp(prop_string_size);
- table++;
- break;
- case PCF_ACCELERATORS:
- if (bitmapFont->bitmapExtra->info.inkMetrics)
- table->format = PCF_ACCEL_W_INKBOUNDS | format;
- else
- table->format = PCF_DEFAULT_FORMAT | format;
- table->size = 100;
- table++;
- break;
- case PCF_METRICS:
- if (CanCompressMetrics(minbounds, maxbounds)) {
- table->format = PCF_COMPRESSED_METRICS | format;
- size = S32 + S16 + bitmapFont->num_chars * (5 * S8);
- table->size = RoundUp(size);
- } else {
- table->format = PCF_DEFAULT_FORMAT | format;
- table->size = S32 + S32 + bitmapFont->num_chars * (6 * S16);
- }
- table++;
- break;
- case PCF_BITMAPS:
- table->format = PCF_DEFAULT_FORMAT | format;
- size = S32 + S32 + bitmapFont->num_chars * S32 +
- GLYPHPADOPTIONS * S32 +
- bitmapFont->bitmapExtra->bitmapsSizes[PCF_GLYPH_PAD_INDEX(format)];
- table->size = RoundUp(size);
- table++;
- break;
- case PCF_INK_METRICS:
- if (bitmapFont->ink_metrics) {
- if (CanCompressMetrics(ink_minbounds, ink_maxbounds)) {
- table->format = PCF_COMPRESSED_METRICS | format;
- size = S32 + S16 + bitmapFont->num_chars * (5 * S8);
- table->size = RoundUp(size);
- } else {
- table->format = PCF_DEFAULT_FORMAT | format;
- table->size = S32 + S32 + bitmapFont->num_chars * (6 * S16);
- }
- table++;
- }
- break;
- case PCF_BDF_ENCODINGS:
- table->format = PCF_DEFAULT_FORMAT | format;
- nencodings = (pFont->info.lastRow - pFont->info.firstRow + 1) *
- (pFont->info.lastCol - pFont->info.firstCol + 1);
- size = S32 + 5 * S16 + nencodings * S16;
- table->size = RoundUp(size);
- table++;
- break;
- case PCF_SWIDTHS:
- table->format = PCF_DEFAULT_FORMAT | format;
- table->size = S32 + S32 + bitmapFont->num_chars * S32;
- table++;
- break;
- case PCF_GLYPH_NAMES:
- table->format = PCF_DEFAULT_FORMAT | format;
- glyph_string_size = 0;
- for (i = 0; i < bitmapFont->num_chars; i++)
- glyph_string_size += strlen(pcfNameForAtom(bitmapFont->bitmapExtra->glyphNames[i])) + 1;
- table->size = S32 + S32 + bitmapFont->num_chars * S32 +
- S32 + RoundUp(glyph_string_size);
- table++;
- break;
- case PCF_BDF_ACCELERATORS:
- if (pFont->info.inkMetrics)
- table->format = PCF_ACCEL_W_INKBOUNDS | format;
- else
- table->format = PCF_DEFAULT_FORMAT | format;
- table->size = 100;
- table++;
- break;
- }
- }
- ntables = table - tables;
- offset = 0;
- header_size = S32 + S32 + ntables * (4 * S32);
- offset = header_size;
- for (cur_table = 0, table = tables;
- cur_table < ntables;
- cur_table++, table++) {
- table->offset = offset;
- offset += table->size;
- }
- current_position = 0;
- pcfWriteTOC(file, tables, ntables);
- for (cur_table = 0, table = tables;
- cur_table < ntables;
- cur_table++, table++) {
- if (current_position > table->offset) {
- printf("can't go backwards... %d > %d\n",
- (int)current_position, (int)table->offset);
- free(offsetProps);
- return BadFontName;
- }
- while (current_position < table->offset)
- pcfPutINT8(file, format, '\0');
- pcfPutLSB32(file, table->format);
- switch (table->type) {
- case PCF_PROPERTIES:
- pcfPutINT32(file, format, pFont->info.nprops);
- for (i = 0; i < pFont->info.nprops; i++) {
- pcfPutINT32(file, format, offsetProps[i].name);
- pcfPutINT8(file, format, pFont->info.isStringProp[i]);
- pcfPutINT32(file, format, offsetProps[i].value);
- }
- for (i = 0; i < prop_pad; i++)
- pcfPutINT8(file, format, 0);
- pcfPutINT32(file, format, prop_string_size);
- for (i = 0; i < pFont->info.nprops; i++) {
- atom_name = pcfNameForAtom(pFont->info.props[i].name);
- pcfWrite(file, atom_name, strlen(atom_name) + 1);
- if (pFont->info.isStringProp[i]) {
- atom_name = pcfNameForAtom(pFont->info.props[i].value);
- pcfWrite(file, atom_name, strlen(atom_name) + 1);
- }
- }
- break;
- case PCF_ACCELERATORS:
- pcfPutAccel(file, table->format, &bitmapFont->bitmapExtra->info);
- break;
- case PCF_METRICS:
- if (PCF_FORMAT_MATCH(table->format, PCF_COMPRESSED_METRICS)) {
- pcfPutINT16(file, format, bitmapFont->num_chars);
- for (i = 0; i < bitmapFont->num_chars; i++)
- pcfPutCompressedMetric(file, format, &bitmapFont->metrics[i].metrics);
- } else {
- pcfPutINT32(file, format, bitmapFont->num_chars);
- for (i = 0; i < bitmapFont->num_chars; i++)
- pcfPutMetric(file, format, &bitmapFont->metrics[i].metrics);
- }
- break;
- case PCF_BITMAPS:
- pcfPutINT32(file, format, bitmapFont->num_chars);
- glyph = PCF_GLYPH_PAD(format);
- offset = 0;
- for (i = 0; i < bitmapFont->num_chars; i++) {
- pcfPutINT32(file, format, offset);
- offset += BYTES_FOR_GLYPH(&bitmapFont->metrics[i], glyph);
- }
- for (i = 0; i < GLYPHPADOPTIONS; i++) {
- pcfPutINT32(file, format,
- bitmapFont->bitmapExtra->bitmapsSizes[i]);
- }
- for (i = 0; i < bitmapFont->num_chars; i++)
- pcfPutBitmap(file, format, &bitmapFont->metrics[i]);
- break;
- case PCF_INK_METRICS:
- if (PCF_FORMAT_MATCH(table->format, PCF_COMPRESSED_METRICS)) {
- pcfPutINT16(file, format, bitmapFont->num_chars);
- for (i = 0; i < bitmapFont->num_chars; i++)
- pcfPutCompressedMetric(file, format, &bitmapFont->ink_metrics[i]);
- } else {
- pcfPutINT32(file, format, bitmapFont->num_chars);
- for (i = 0; i < bitmapFont->num_chars; i++)
- pcfPutMetric(file, format, &bitmapFont->ink_metrics[i]);
- }
- break;
- case PCF_BDF_ENCODINGS:
- pcfPutINT16(file, format, pFont->info.firstCol);
- pcfPutINT16(file, format, pFont->info.lastCol);
- pcfPutINT16(file, format, pFont->info.firstRow);
- pcfPutINT16(file, format, pFont->info.lastRow);
- pcfPutINT16(file, format, pFont->info.defaultCh);
- for (i = 0; i < nencodings; i++) {
- if (ACCESSENCODING(bitmapFont->encoding,i))
- pcfPutINT16(file, format,
- ACCESSENCODING(bitmapFont->encoding, i) -
- bitmapFont->metrics);
- else
- pcfPutINT16(file, format, 0xFFFF);
- }
- break;
- case PCF_SWIDTHS:
- pcfPutINT32(file, format, bitmapFont->num_chars);
- for (i = 0; i < bitmapFont->num_chars; i++)
- pcfPutINT32(file, format, bitmapFont->bitmapExtra->sWidths[i]);
- break;
- case PCF_GLYPH_NAMES:
- pcfPutINT32(file, format, bitmapFont->num_chars);
- offset = 0;
- for (i = 0; i < bitmapFont->num_chars; i++) {
- pcfPutINT32(file, format, offset);
- offset += strlen(pcfNameForAtom(bitmapFont->bitmapExtra->glyphNames[i])) + 1;
- }
- pcfPutINT32(file, format, offset);
- for (i = 0; i < bitmapFont->num_chars; i++) {
- atom_name = pcfNameForAtom(bitmapFont->bitmapExtra->glyphNames[i]);
- pcfWrite(file, atom_name, strlen(atom_name) + 1);
- }
- break;
- case PCF_BDF_ACCELERATORS:
- pcfPutAccel(file, table->format, &pFont->info);
- break;
- }
- }
-
- free(offsetProps);
- return Successful;
-}
+/* + +Copyright 1990, 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. + +*/ + +/* + * Author: Keith Packard, MIT X Consortium + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <X11/fonts/fntfilst.h> +#include <X11/fonts/bitmap.h> +#include <X11/fonts/pcf.h> + +/* Write PCF font files */ + +static CARD32 current_position; + +static int +pcfWrite(FontFilePtr file, char *b, int c) +{ + current_position += c; + return FontFileWrite(file, b, c); +} + +static int +pcfPutLSB32(FontFilePtr file, int c) +{ + current_position += 4; + (void) FontFilePutc(c, file); + (void) FontFilePutc(c >> 8, file); + (void) FontFilePutc(c >> 16, file); + return FontFilePutc(c >> 24, file); +} + +static int +pcfPutINT32(FontFilePtr file, CARD32 format, int c) +{ + current_position += 4; + if (PCF_BYTE_ORDER(format) == MSBFirst) { + (void) FontFilePutc(c >> 24, file); + (void) FontFilePutc(c >> 16, file); + (void) FontFilePutc(c >> 8, file); + return FontFilePutc(c, file); + } else { + (void) FontFilePutc(c, file); + (void) FontFilePutc(c >> 8, file); + (void) FontFilePutc(c >> 16, file); + return FontFilePutc(c >> 24, file); + } +} + +static int +pcfPutINT16(FontFilePtr file, CARD32 format, int c) +{ + current_position += 2; + if (PCF_BYTE_ORDER(format) == MSBFirst) { + (void) FontFilePutc(c >> 8, file); + return FontFilePutc(c, file); + } else { + (void) FontFilePutc(c, file); + return FontFilePutc(c >> 8, file); + } +} + +/*ARGSUSED*/ +static int +pcfPutINT8(FontFilePtr file, CARD32 format, int c) +{ + current_position += 1; + return FontFilePutc(c, file); +} + +static void +pcfWriteTOC(FontFilePtr file, PCFTablePtr table, int count) +{ + CARD32 version; + int i; + + version = PCF_FILE_VERSION; + pcfPutLSB32(file, version); + pcfPutLSB32(file, count); + for (i = 0; i < count; i++) { + pcfPutLSB32(file, table->type); + pcfPutLSB32(file, table->format); + pcfPutLSB32(file, table->size); + pcfPutLSB32(file, table->offset); + table++; + } +} + +static void +pcfPutCompressedMetric(FontFilePtr file, CARD32 format, xCharInfo *metric) +{ + pcfPutINT8(file, format, metric->leftSideBearing + 0x80); + pcfPutINT8(file, format, metric->rightSideBearing + 0x80); + pcfPutINT8(file, format, metric->characterWidth + 0x80); + pcfPutINT8(file, format, metric->ascent + 0x80); + pcfPutINT8(file, format, metric->descent + 0x80); +} + +static void +pcfPutMetric(FontFilePtr file, CARD32 format, xCharInfo *metric) +{ + pcfPutINT16(file, format, metric->leftSideBearing); + pcfPutINT16(file, format, metric->rightSideBearing); + pcfPutINT16(file, format, metric->characterWidth); + pcfPutINT16(file, format, metric->ascent); + pcfPutINT16(file, format, metric->descent); + pcfPutINT16(file, format, metric->attributes); +} + +static void +pcfPutBitmap(FontFilePtr file, CARD32 format, CharInfoPtr pCI) +{ + int count; + unsigned char *bits; + + count = BYTES_FOR_GLYPH(pCI, PCF_GLYPH_PAD(format)); + bits = (unsigned char *) pCI->bits; + current_position += count; + while (count--) + FontFilePutc(*bits++, file); +} + +static void +pcfPutAccel(FontFilePtr file, CARD32 format, FontInfoPtr pFontInfo) +{ + pcfPutINT8(file, format, pFontInfo->noOverlap); + pcfPutINT8(file, format, pFontInfo->constantMetrics); + pcfPutINT8(file, format, pFontInfo->terminalFont); + pcfPutINT8(file, format, pFontInfo->constantWidth); + pcfPutINT8(file, format, pFontInfo->inkInside); + pcfPutINT8(file, format, pFontInfo->inkMetrics); + pcfPutINT8(file, format, pFontInfo->drawDirection); + pcfPutINT8(file, format, 0); + pcfPutINT32(file, format, pFontInfo->fontAscent); + pcfPutINT32(file, format, pFontInfo->fontDescent); + pcfPutINT32(file, format, pFontInfo->maxOverlap); + pcfPutMetric(file, format, &pFontInfo->minbounds); + pcfPutMetric(file, format, &pFontInfo->maxbounds); + if (PCF_FORMAT_MATCH(format, PCF_ACCEL_W_INKBOUNDS)) { + pcfPutMetric(file, format, &pFontInfo->ink_minbounds); + pcfPutMetric(file, format, &pFontInfo->ink_maxbounds); + } +} + +#define S32 4 +#define S16 2 +#define S8 1 + +#define Pad(s) (RoundUp(s) - (s)) +#define RoundUp(s) (((s) + 3) & ~3) + +#define Compressable(i) (-128 <= (i) && (i) <= 127) + +#define CanCompressMetric(m) (Compressable((m)->leftSideBearing) && \ + Compressable((m)->rightSideBearing) && \ + Compressable((m)->characterWidth) && \ + Compressable((m)->ascent) && \ + Compressable((m)->descent) && \ + (m)->attributes == 0) + +#define CanCompressMetrics(min,max) (CanCompressMetric(min) && CanCompressMetric(max)) + +static char * +pcfNameForAtom(Atom a) +{ + return NameForAtom(a); +} + +int +pcfWriteFont(FontPtr pFont, FontFilePtr file) +{ + PCFTableRec tables[32], + *table; + CARD32 mask, + bit; + int ntables; + int size; + CARD32 format; + int i; + int cur_table; + int prop_string_size; + int glyph_string_size; + xCharInfo *minbounds, + *maxbounds; + xCharInfo *ink_minbounds, + *ink_maxbounds; + BitmapFontPtr bitmapFont; + int nencodings = 0; + int header_size; + FontPropPtr offsetProps; + int prop_pad = 0; + char *atom_name; + int glyph; + CARD32 offset; + + bitmapFont = (BitmapFontPtr) pFont->fontPrivate; + if (bitmapFont->bitmapExtra) { + minbounds = &bitmapFont->bitmapExtra->info.minbounds; + maxbounds = &bitmapFont->bitmapExtra->info.maxbounds; + ink_minbounds = &bitmapFont->bitmapExtra->info.ink_minbounds; + ink_maxbounds = &bitmapFont->bitmapExtra->info.ink_maxbounds; + } else { + minbounds = &pFont->info.minbounds; + maxbounds = &pFont->info.maxbounds; + ink_minbounds = &pFont->info.ink_minbounds; + ink_maxbounds = &pFont->info.ink_maxbounds; + } + offsetProps = malloc(pFont->info.nprops * sizeof(FontPropRec)); + if (!offsetProps) { + pcfError("pcfWriteFont(): Couldn't allocate offsetProps (%d*%d)", pFont->info.nprops, sizeof(FontPropRec)); + return AllocError; + } + prop_string_size = 0; + for (i = 0; i < pFont->info.nprops; i++) { + offsetProps[i].name = prop_string_size; + prop_string_size += strlen(pcfNameForAtom(pFont->info.props[i].name)) + 1; + if (pFont->info.isStringProp[i]) { + offsetProps[i].value = prop_string_size; + prop_string_size += strlen(pcfNameForAtom(pFont->info.props[i].value)) + 1; + } else + offsetProps[i].value = pFont->info.props[i].value; + } + format = PCF_FORMAT(pFont->bit, pFont->byte, pFont->glyph, pFont->scan); + mask = 0xFFFFFFF; + ntables = 0; + table = tables; + while (mask) { + bit = lowbit(mask); + mask &= ~bit; + table->type = bit; + switch (bit) { + case PCF_PROPERTIES: + table->format = PCF_DEFAULT_FORMAT | format; + size = S32 + S32 + (S32 + S8 + S32) * pFont->info.nprops; + prop_pad = Pad(size); + table->size = RoundUp(size) + S32 + + RoundUp(prop_string_size); + table++; + break; + case PCF_ACCELERATORS: + if (bitmapFont->bitmapExtra->info.inkMetrics) + table->format = PCF_ACCEL_W_INKBOUNDS | format; + else + table->format = PCF_DEFAULT_FORMAT | format; + table->size = 100; + table++; + break; + case PCF_METRICS: + if (CanCompressMetrics(minbounds, maxbounds)) { + table->format = PCF_COMPRESSED_METRICS | format; + size = S32 + S16 + bitmapFont->num_chars * (5 * S8); + table->size = RoundUp(size); + } else { + table->format = PCF_DEFAULT_FORMAT | format; + table->size = S32 + S32 + bitmapFont->num_chars * (6 * S16); + } + table++; + break; + case PCF_BITMAPS: + table->format = PCF_DEFAULT_FORMAT | format; + size = S32 + S32 + bitmapFont->num_chars * S32 + + GLYPHPADOPTIONS * S32 + + bitmapFont->bitmapExtra->bitmapsSizes[PCF_GLYPH_PAD_INDEX(format)]; + table->size = RoundUp(size); + table++; + break; + case PCF_INK_METRICS: + if (bitmapFont->ink_metrics) { + if (CanCompressMetrics(ink_minbounds, ink_maxbounds)) { + table->format = PCF_COMPRESSED_METRICS | format; + size = S32 + S16 + bitmapFont->num_chars * (5 * S8); + table->size = RoundUp(size); + } else { + table->format = PCF_DEFAULT_FORMAT | format; + table->size = S32 + S32 + bitmapFont->num_chars * (6 * S16); + } + table++; + } + break; + case PCF_BDF_ENCODINGS: + table->format = PCF_DEFAULT_FORMAT | format; + nencodings = (pFont->info.lastRow - pFont->info.firstRow + 1) * + (pFont->info.lastCol - pFont->info.firstCol + 1); + size = S32 + 5 * S16 + nencodings * S16; + table->size = RoundUp(size); + table++; + break; + case PCF_SWIDTHS: + table->format = PCF_DEFAULT_FORMAT | format; + table->size = S32 + S32 + bitmapFont->num_chars * S32; + table++; + break; + case PCF_GLYPH_NAMES: + table->format = PCF_DEFAULT_FORMAT | format; + glyph_string_size = 0; + for (i = 0; i < bitmapFont->num_chars; i++) + glyph_string_size += strlen(pcfNameForAtom(bitmapFont->bitmapExtra->glyphNames[i])) + 1; + table->size = S32 + S32 + bitmapFont->num_chars * S32 + + S32 + RoundUp(glyph_string_size); + table++; + break; + case PCF_BDF_ACCELERATORS: + if (pFont->info.inkMetrics) + table->format = PCF_ACCEL_W_INKBOUNDS | format; + else + table->format = PCF_DEFAULT_FORMAT | format; + table->size = 100; + table++; + break; + } + } + ntables = table - tables; + offset = 0; + header_size = S32 + S32 + ntables * (4 * S32); + offset = header_size; + for (cur_table = 0, table = tables; + cur_table < ntables; + cur_table++, table++) { + table->offset = offset; + offset += table->size; + } + current_position = 0; + pcfWriteTOC(file, tables, ntables); + for (cur_table = 0, table = tables; + cur_table < ntables; + cur_table++, table++) { + if (current_position > table->offset) { + printf("can't go backwards... %d > %d\n", + (int)current_position, (int)table->offset); + free(offsetProps); + return BadFontName; + } + while (current_position < table->offset) + pcfPutINT8(file, format, '\0'); + pcfPutLSB32(file, table->format); + switch (table->type) { + case PCF_PROPERTIES: + pcfPutINT32(file, format, pFont->info.nprops); + for (i = 0; i < pFont->info.nprops; i++) { + pcfPutINT32(file, format, offsetProps[i].name); + pcfPutINT8(file, format, pFont->info.isStringProp[i]); + pcfPutINT32(file, format, offsetProps[i].value); + } + for (i = 0; i < prop_pad; i++) + pcfPutINT8(file, format, 0); + pcfPutINT32(file, format, prop_string_size); + for (i = 0; i < pFont->info.nprops; i++) { + atom_name = pcfNameForAtom(pFont->info.props[i].name); + pcfWrite(file, atom_name, strlen(atom_name) + 1); + if (pFont->info.isStringProp[i]) { + atom_name = pcfNameForAtom(pFont->info.props[i].value); + pcfWrite(file, atom_name, strlen(atom_name) + 1); + } + } + break; + case PCF_ACCELERATORS: + pcfPutAccel(file, table->format, &bitmapFont->bitmapExtra->info); + break; + case PCF_METRICS: + if (PCF_FORMAT_MATCH(table->format, PCF_COMPRESSED_METRICS)) { + pcfPutINT16(file, format, bitmapFont->num_chars); + for (i = 0; i < bitmapFont->num_chars; i++) + pcfPutCompressedMetric(file, format, &bitmapFont->metrics[i].metrics); + } else { + pcfPutINT32(file, format, bitmapFont->num_chars); + for (i = 0; i < bitmapFont->num_chars; i++) + pcfPutMetric(file, format, &bitmapFont->metrics[i].metrics); + } + break; + case PCF_BITMAPS: + pcfPutINT32(file, format, bitmapFont->num_chars); + glyph = PCF_GLYPH_PAD(format); + offset = 0; + for (i = 0; i < bitmapFont->num_chars; i++) { + pcfPutINT32(file, format, offset); + offset += BYTES_FOR_GLYPH(&bitmapFont->metrics[i], glyph); + } + for (i = 0; i < GLYPHPADOPTIONS; i++) { + pcfPutINT32(file, format, + bitmapFont->bitmapExtra->bitmapsSizes[i]); + } + for (i = 0; i < bitmapFont->num_chars; i++) + pcfPutBitmap(file, format, &bitmapFont->metrics[i]); + break; + case PCF_INK_METRICS: + if (PCF_FORMAT_MATCH(table->format, PCF_COMPRESSED_METRICS)) { + pcfPutINT16(file, format, bitmapFont->num_chars); + for (i = 0; i < bitmapFont->num_chars; i++) + pcfPutCompressedMetric(file, format, &bitmapFont->ink_metrics[i]); + } else { + pcfPutINT32(file, format, bitmapFont->num_chars); + for (i = 0; i < bitmapFont->num_chars; i++) + pcfPutMetric(file, format, &bitmapFont->ink_metrics[i]); + } + break; + case PCF_BDF_ENCODINGS: + pcfPutINT16(file, format, pFont->info.firstCol); + pcfPutINT16(file, format, pFont->info.lastCol); + pcfPutINT16(file, format, pFont->info.firstRow); + pcfPutINT16(file, format, pFont->info.lastRow); + pcfPutINT16(file, format, pFont->info.defaultCh); + for (i = 0; i < nencodings; i++) { + if (ACCESSENCODING(bitmapFont->encoding,i)) + pcfPutINT16(file, format, + ACCESSENCODING(bitmapFont->encoding, i) - + bitmapFont->metrics); + else + pcfPutINT16(file, format, 0xFFFF); + } + break; + case PCF_SWIDTHS: + pcfPutINT32(file, format, bitmapFont->num_chars); + for (i = 0; i < bitmapFont->num_chars; i++) + pcfPutINT32(file, format, bitmapFont->bitmapExtra->sWidths[i]); + break; + case PCF_GLYPH_NAMES: + pcfPutINT32(file, format, bitmapFont->num_chars); + offset = 0; + for (i = 0; i < bitmapFont->num_chars; i++) { + pcfPutINT32(file, format, offset); + offset += strlen(pcfNameForAtom(bitmapFont->bitmapExtra->glyphNames[i])) + 1; + } + pcfPutINT32(file, format, offset); + for (i = 0; i < bitmapFont->num_chars; i++) { + atom_name = pcfNameForAtom(bitmapFont->bitmapExtra->glyphNames[i]); + pcfWrite(file, atom_name, strlen(atom_name) + 1); + } + break; + case PCF_BDF_ACCELERATORS: + pcfPutAccel(file, table->format, &pFont->info); + break; + } + } + + free(offsetProps); + return Successful; +} diff --git a/libXfont/src/bitmap/snfread.c b/libXfont/src/bitmap/snfread.c index d0b0dfe3c..d003cc5a5 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); +} + diff --git a/libXfont/src/bitmap/snfstr.h b/libXfont/src/bitmap/snfstr.h index 89372669e..148bb1fcc 100644 --- a/libXfont/src/bitmap/snfstr.h +++ b/libXfont/src/bitmap/snfstr.h @@ -1,182 +1,182 @@ -/***********************************************************
-Copyright 1987 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.
-
-*/
-
-#ifndef SNFSTR_H
-#define SNFSTR_H 1
-
-#include <X11/fonts/fntfilio.h>
-
-/*-
- * This file describes the Server Natural Font format.
- * SNF fonts are both CPU-dependent and frame buffer bit order dependent.
- * This file is used by:
- * 1) the server, to hold font information read out of font files.
- * 2) font converters
- *
- * Each font file contains the following
- * data structures, with no padding in-between.
- *
- * 1) The XFONTINFO structure
- * hand-padded to a two-short boundary.
- * maxbounds.byteoffset is the total number of bytes in the
- * glpyh array
- * maxbounds.bitOffset is thetotal width of the unpadded font
- *
- * 2) The XCHARINFO array
- * indexed directly with character codes, both on disk
- * and in memory.
- *
- * 3) Character glyphs
- * padded in the server-natural way, and
- * ordered in the device-natural way.
- * End of glyphs padded to 32-bit boundary.
- *
- * 4) nProps font properties
- *
- * 5) a sequence of null-terminated strings, for font properties
- */
-
-#define FONT_FILE_VERSION 4
-
-typedef struct _snfFontProp {
- CARD32 name; /* offset of string */
- INT32 value; /* number or offset of string */
- Bool indirect; /* value is a string offset */
-} snfFontPropRec;
-
-/*
- * the following macro definitions describe a font file image in memory
- */
-#define ADDRCharInfoRec( pfi) \
- ((snfCharInfoRec *) &(pfi)[1])
-
-#define ADDRCHARGLYPHS( pfi) \
- (((char *) &(pfi)[1]) + BYTESOFCHARINFO(pfi))
-
-/*
- * pad out glyphs to a CARD32 boundary
- */
-#define ADDRXFONTPROPS( pfi) \
- ((snfFontPropRec *) ((char *)ADDRCHARGLYPHS( pfi) + BYTESOFGLYPHINFO(pfi)))
-
-#define ADDRSTRINGTAB( pfi) \
- ((char *)ADDRXFONTPROPS( pfi) + BYTESOFPROPINFO(pfi))
-
-#define n2dChars(pfi) (((pfi)->lastRow - (pfi)->firstRow + 1) * \
- ((pfi)->lastCol - (pfi)->firstCol + 1))
-#define BYTESOFFONTINFO(pfi) (sizeof(snfFontInfoRec))
-#define BYTESOFCHARINFO(pfi) (sizeof(snfCharInfoRec) * n2dChars(pfi))
-#define BYTESOFPROPINFO(pfi) (sizeof(snfFontPropRec) * (pfi)->nProps)
-#define BYTESOFSTRINGINFO(pfi) ((pfi)->lenStrings)
-#define BYTESOFGLYPHINFO(pfi) (((pfi)->maxbounds.byteOffset+3) & ~0x3)
-#define BYTESOFINKINFO(pfi) (sizeof(snfCharInfoRec) * n2dChars(pfi))
-
-typedef struct _snfFontProp *snfFontPropPtr;
-typedef struct _snfCharInfo *snfCharInfoPtr;
-typedef struct _snfFontInfo *snfFontInfoPtr;
-
-typedef struct _snfCharInfo {
- xCharInfo metrics; /* info preformatted for Queries */
- unsigned byteOffset:24; /* byte offset of the raster from pGlyphs */
- unsigned exists:1; /* true iff glyph exists for this char */
- unsigned pad:7; /* must be zero for now */
-} snfCharInfoRec;
-
-typedef struct _snfFontInfo {
- unsigned int version1; /* version stamp */
- unsigned int allExist;
- unsigned int drawDirection;
- unsigned int noOverlap; /* true if:
- * max(rightSideBearing-characterWidth) <=
- * minbounds->metrics.leftSideBearing */
- unsigned int constantMetrics;
- unsigned int terminalFont; /* Should be deprecated! true if: constant
- * metrics && leftSideBearing == 0 &&
- * rightSideBearing == characterWidth &&
- * ascent == fontAscent && descent ==
- * fontDescent */
- unsigned int linear:1; /* true if firstRow == lastRow */
- unsigned int constantWidth:1; /* true if
- * minbounds->metrics.characterWidth
- * ==
- * maxbounds->metrics.characterWidth */
- unsigned int inkInside:1; /* true if for all defined glyphs:
- * leftSideBearing >= 0 && rightSideBearing <=
- * characterWidth && -fontDescent <= ascent <=
- * fontAscent && -fontAscent <= descent <=
- * fontDescent */
- unsigned int inkMetrics:1; /* ink metrics != bitmap metrics */
- /* used with terminalFont */
- /* see font's pInk{CI,Min,Max} */
- unsigned int padding:28;
- unsigned int firstCol;
- unsigned int lastCol;
- unsigned int firstRow;
- unsigned int lastRow;
- unsigned int nProps;
- unsigned int lenStrings; /* length in bytes of string table */
- unsigned int chDefault; /* default character */
- int fontDescent; /* minimum for quality typography */
- int fontAscent; /* minimum for quality typography */
- snfCharInfoRec minbounds; /* MIN of glyph metrics over all chars */
- snfCharInfoRec maxbounds; /* MAX of glyph metrics over all chars */
- unsigned int pixDepth; /* intensity bits per pixel */
- unsigned int glyphSets; /* number of sets of glyphs, for sub-pixel
- * positioning */
- unsigned int version2; /* version stamp double-check */
-} snfFontInfoRec;
-
-extern void SnfSetFormat ( int bit, int byte, int glyph, int scan );
-extern int snfReadFont ( FontPtr pFont, FontFilePtr file,
- int bit, int byte, int glyph, int scan );
-extern int snfReadFontInfo ( FontInfoPtr pFontInfo, FontFilePtr file );
-
-#endif /* SNFSTR_H */
+/*********************************************************** +Copyright 1987 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. + +*/ + +#ifndef SNFSTR_H +#define SNFSTR_H 1 + +#include <X11/fonts/fntfilio.h> + +/*- + * This file describes the Server Natural Font format. + * SNF fonts are both CPU-dependent and frame buffer bit order dependent. + * This file is used by: + * 1) the server, to hold font information read out of font files. + * 2) font converters + * + * Each font file contains the following + * data structures, with no padding in-between. + * + * 1) The XFONTINFO structure + * hand-padded to a two-short boundary. + * maxbounds.byteoffset is the total number of bytes in the + * glpyh array + * maxbounds.bitOffset is thetotal width of the unpadded font + * + * 2) The XCHARINFO array + * indexed directly with character codes, both on disk + * and in memory. + * + * 3) Character glyphs + * padded in the server-natural way, and + * ordered in the device-natural way. + * End of glyphs padded to 32-bit boundary. + * + * 4) nProps font properties + * + * 5) a sequence of null-terminated strings, for font properties + */ + +#define FONT_FILE_VERSION 4 + +typedef struct _snfFontProp { + CARD32 name; /* offset of string */ + INT32 value; /* number or offset of string */ + Bool indirect; /* value is a string offset */ +} snfFontPropRec; + +/* + * the following macro definitions describe a font file image in memory + */ +#define ADDRCharInfoRec( pfi) \ + ((snfCharInfoRec *) &(pfi)[1]) + +#define ADDRCHARGLYPHS( pfi) \ + (((char *) &(pfi)[1]) + BYTESOFCHARINFO(pfi)) + +/* + * pad out glyphs to a CARD32 boundary + */ +#define ADDRXFONTPROPS( pfi) \ + ((snfFontPropRec *) ((char *)ADDRCHARGLYPHS( pfi) + BYTESOFGLYPHINFO(pfi))) + +#define ADDRSTRINGTAB( pfi) \ + ((char *)ADDRXFONTPROPS( pfi) + BYTESOFPROPINFO(pfi)) + +#define n2dChars(pfi) (((pfi)->lastRow - (pfi)->firstRow + 1) * \ + ((pfi)->lastCol - (pfi)->firstCol + 1)) +#define BYTESOFFONTINFO(pfi) (sizeof(snfFontInfoRec)) +#define BYTESOFCHARINFO(pfi) (sizeof(snfCharInfoRec) * n2dChars(pfi)) +#define BYTESOFPROPINFO(pfi) (sizeof(snfFontPropRec) * (pfi)->nProps) +#define BYTESOFSTRINGINFO(pfi) ((pfi)->lenStrings) +#define BYTESOFGLYPHINFO(pfi) (((pfi)->maxbounds.byteOffset+3) & ~0x3) +#define BYTESOFINKINFO(pfi) (sizeof(snfCharInfoRec) * n2dChars(pfi)) + +typedef struct _snfFontProp *snfFontPropPtr; +typedef struct _snfCharInfo *snfCharInfoPtr; +typedef struct _snfFontInfo *snfFontInfoPtr; + +typedef struct _snfCharInfo { + xCharInfo metrics; /* info preformatted for Queries */ + unsigned byteOffset:24; /* byte offset of the raster from pGlyphs */ + unsigned exists:1; /* true iff glyph exists for this char */ + unsigned pad:7; /* must be zero for now */ +} snfCharInfoRec; + +typedef struct _snfFontInfo { + unsigned int version1; /* version stamp */ + unsigned int allExist; + unsigned int drawDirection; + unsigned int noOverlap; /* true if: + * max(rightSideBearing-characterWidth) <= + * minbounds->metrics.leftSideBearing */ + unsigned int constantMetrics; + unsigned int terminalFont; /* Should be deprecated! true if: constant + * metrics && leftSideBearing == 0 && + * rightSideBearing == characterWidth && + * ascent == fontAscent && descent == + * fontDescent */ + unsigned int linear:1; /* true if firstRow == lastRow */ + unsigned int constantWidth:1; /* true if + * minbounds->metrics.characterWidth + * == + * maxbounds->metrics.characterWidth */ + unsigned int inkInside:1; /* true if for all defined glyphs: + * leftSideBearing >= 0 && rightSideBearing <= + * characterWidth && -fontDescent <= ascent <= + * fontAscent && -fontAscent <= descent <= + * fontDescent */ + unsigned int inkMetrics:1; /* ink metrics != bitmap metrics */ + /* used with terminalFont */ + /* see font's pInk{CI,Min,Max} */ + unsigned int padding:28; + unsigned int firstCol; + unsigned int lastCol; + unsigned int firstRow; + unsigned int lastRow; + unsigned int nProps; + unsigned int lenStrings; /* length in bytes of string table */ + unsigned int chDefault; /* default character */ + int fontDescent; /* minimum for quality typography */ + int fontAscent; /* minimum for quality typography */ + snfCharInfoRec minbounds; /* MIN of glyph metrics over all chars */ + snfCharInfoRec maxbounds; /* MAX of glyph metrics over all chars */ + unsigned int pixDepth; /* intensity bits per pixel */ + unsigned int glyphSets; /* number of sets of glyphs, for sub-pixel + * positioning */ + unsigned int version2; /* version stamp double-check */ +} snfFontInfoRec; + +extern void SnfSetFormat ( int bit, int byte, int glyph, int scan ); +extern int snfReadFont ( FontPtr pFont, FontFilePtr file, + int bit, int byte, int glyph, int scan ); +extern int snfReadFontInfo ( FontInfoPtr pFontInfo, FontFilePtr file ); + +#endif /* SNFSTR_H */ |