+++ /dev/null
-/* $TOG: t1funcs.c /main/23 1997/06/09 14:55:44 barstow $ */
-/* Copyright International Business Machines,Corp. 1991
- * All Rights Reserved
- *
- * License, subject to the license given below, 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 IBM not be used in advertising or
- * publicity pertaining to distribution of the software
- * without specific, written prior permission.
- *
- * IBM PROVIDES THIS SOFTWARE "AS IS", WITHOUT ANY WARRANTIES
- * OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT
- * LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, AND NONINFRINGEMENT OF
- * THIRD PARTY RIGHTS. THE ENTIRE RISK AS TO THE QUALITY AND
- * PERFORMANCE OF THE SOFTWARE, INCLUDING ANY DUTY TO SUPPORT
- * OR MAINTAIN, BELONGS TO THE LICENSEE. SHOULD ANY PORTION OF
- * THE SOFTWARE PROVE DEFECTIVE, THE LICENSEE (NOT IBM) ASSUMES
- * THE ENTIRE COST OF ALL SERVICING, REPAIR AND CORRECTION. IN
- * NO EVENT SHALL IBM 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.
- *
- * Author: Jeffrey B. Lotspiech, IBM Almaden Research Center
- * Modeled on spfuncs.c by Dave Lemke, Network Computing Devices, Inc
- * which contains the following copyright and permission notices:
- *
- * Copyright 1990, 1991 Network Computing Devices;
- * Portions Copyright 1987 by Digital Equipment Corporation
- *
- * 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, and that the names of Network Computing Devices
- * or Digital not be used in advertising or publicity pertaining to
- * distribution of the software without specific, written prior permission.
- * Network Computing Devices or Digital make no representations about the
- * suitability of this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- *
- * NETWORK COMPUTING DEVICES AND DIGITAL DISCLAIM ALL WARRANTIES WITH
- * REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS, IN NO EVENT SHALL NETWORK COMPUTING DEVICES OR 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.
- */
-/* $XFree86: xc/lib/font/Type1/t1funcs.c,v 3.4.2.1 1997/07/05 15:55:35 dawes Exp $ */
-
-/*
-
-Copyright (c) 1987, 1994 X Consortium
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be included
-in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR
-OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
-ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
-OTHER DEALINGS IN THE SOFTWARE.
-
-Except as contained in this notice, the name of the X Consortium shall
-not be used in advertising or otherwise to promote the sale, use or
-other dealings in this Software without prior written authorization
-from the X Consortium.
-
-*/
-
-#include <string.h>
-#ifdef _XOPEN_SOURCE
-#include <math.h>
-#else
-#define _XOPEN_SOURCE /* to get prototype for hypot on some systems */
-#include <math.h>
-#undef _XOPEN_SOURCE
-#endif
-#include "X11/Xfuncs.h"
-#include "fntfilst.h"
-#include "FSproto.h"
-#include "t1intf.h"
-
-#include "objects.h"
-#include "spaces.h"
-#include "regions.h"
-#include "t1stdio.h"
-#include "util.h"
-#include "fontfcn.h"
-
-int Type1OpenScalable ();
-static int Type1GetGlyphs();
-void Type1CloseFont();
-extern int Type1GetInfoScalable ();
-
-static int Type1GetMetrics ();
-
-#define minchar(p) ((p).min_char_low + ((p).min_char_high << 8))
-#define maxchar(p) ((p).max_char_low + ((p).max_char_high << 8))
-
-static void fillrun();
-
-
-extern psfont *FontP;
-extern psobj *ISOLatin1EncArrayP;
-
-extern unsigned long *Xalloc();
-static void fill();
-
-/*ARGSUSED*/
-int Type1OpenScalable (fpe, ppFont, flags, entry, fileName, vals, format,
- fmask, non_cachable_font)
- FontPathElementPtr fpe;
- FontPtr *ppFont;
- int flags;
- FontEntryPtr entry;
- char *fileName;
- FontScalablePtr vals;
- fsBitmapFormat format;
- fsBitmapFormatMask fmask;
- FontPtr non_cachable_font; /* We don't do licensing */
-{
- extern struct XYspace *IDENTITY;
- extern Bool fontfcnA();
- extern struct region *fontfcnB();
-
-
- FontPtr pFont;
- int bit,
- byte,
- glyph,
- scan,
- image;
- int pad,wordsize; /* scan & image in bits */
- unsigned long *pool; /* memory pool for ximager objects */
- int size; /* for memory size calculations */
- struct XYspace *S; /* coordinate space for character */
- struct region *area;
- CharInfoRec *glyphs;
- register int i;
- int len, rc, count = 0;
- struct type1font *type1;
- char *p;
- psobj *fontencoding = NULL;
- fsRange char_range;
- psobj *fontmatrix;
- long x0, total_width = 0, total_raw_width = 0;
- double x1, y1, t1 = .001, t2 = 0.0, t3 = 0.0, t4 = .001;
- double sxmult;
-
- /* Reject ridiculously small font sizes that will blow up the math */
- if (hypot(vals->pixel_matrix[0], vals->pixel_matrix[1]) < 1.0 ||
- hypot(vals->pixel_matrix[2], vals->pixel_matrix[3]) < 1.0)
- return BadFontName;
-
- /* set up default values */
- FontDefaultFormat(&bit, &byte, &glyph, &scan);
- /* get any changes made from above */
- rc = CheckFSFormat(format, fmask, &bit, &byte, &scan, &glyph, &image);
- if (rc != Successful)
- return rc;
-
- pad = glyph * 8;
- wordsize = scan * 8;
-
-#define PAD(bits, pad) (((bits)+(pad)-1)&-(pad))
-
- pFont = (FontPtr) xalloc(sizeof(FontRec));
- if (pFont == NULL)
- return AllocError;
-
- type1 = (struct type1font *)xalloc(sizeof(struct type1font));
- if (type1 == NULL) {
- xfree(pFont);
- return AllocError;
- }
- bzero(type1, sizeof(struct type1font));
-
- /* heuristic for "maximum" size of pool we'll need: */
- size = 200000 + 120 *
- (int)hypot(vals->pixel_matrix[2], vals->pixel_matrix[3])
- * sizeof(short);
- if (size < 0 || NULL == (pool = (unsigned long *) xalloc(size))) {
- xfree(type1);
- xfree(pFont);
- return AllocError;
- }
-
- addmemory(pool, size);
-
-
- glyphs = type1->glyphs;
-
- /* load font if not already loaded */
- if (!fontfcnA(fileName, &rc)) {
- delmemory();
- xfree(type1);
- xfree(pFont);
- xfree(pool);
- return Type1ReturnCodeToXReturnCode(rc);
- }
-
- fontmatrix = &FontP->fontInfoP[FONTMATRIX].value;
- if (objPIsArray(fontmatrix) && fontmatrix->len == 6)
- {
-#define assign(n,d,f) if (objPIsInteger(fontmatrix->data.arrayP + n)) \
- d = fontmatrix->data.arrayP[n].data.integer; \
- else if (objPIsReal(fontmatrix->data.arrayP + n)) \
- d = fontmatrix->data.arrayP[n].data.real; \
- else d = f;
-
- assign(0, t1, .001);
- assign(1, t2, 0.0);
- assign(2, t3, 0.0);
- assign(3, t4, .001);
- }
-
- S = (struct XYspace *) t1_Transform(IDENTITY, t1, t2, t3, t4);
-
- S = (struct XYspace *) Permanent(t1_Transform(S, vals->pixel_matrix[0],
- -vals->pixel_matrix[1],
- vals->pixel_matrix[2],
- -vals->pixel_matrix[3]));
-
-
- /* multiplier for computation of raw values */
- sxmult = hypot(vals->pixel_matrix[0], vals->pixel_matrix[1]);
- if (sxmult > EPS) sxmult = 1000.0 / sxmult;
-
- p = entry->name.name + entry->name.length - 19;
- if (entry->name.ndashes == 14 &&
- p >= entry->name.name &&
- !strcmp (p, "-adobe-fontspecific"))
- {
- fontencoding = FontP->fontInfoP[ENCODING].value.data.arrayP;
- }
-
- if (!fontencoding)
- fontencoding = ISOLatin1EncArrayP;
-
- pFont->info.firstCol = 255;
- pFont->info.lastCol = FIRSTCOL;
-
- for (i=0; i < 256-FIRSTCOL; i++) {
- long h,w;
- long paddedW;
- int j;
- char *codename;
-
- codename = fontencoding[i + FIRSTCOL].data.valueP;
- len = fontencoding[i + FIRSTCOL].len;
- if (len == 7 && strcmp(codename,".notdef")==0)
- continue;
-
- /* See if this character is in the list of ranges specified
- in the XLFD name */
- for (j = 0; j < vals->nranges; j++)
- if (i + FIRSTCOL >= minchar(vals->ranges[j]) &&
- i + FIRSTCOL <= maxchar(vals->ranges[j]))
- break;
-
- /* If not, don't realize it. */
- if (vals->nranges && j == vals->nranges)
- continue;
-
- if (pFont->info.firstCol > i + FIRSTCOL)
- pFont->info.firstCol = i + FIRSTCOL;
- if (pFont->info.lastCol < i + FIRSTCOL)
- pFont->info.lastCol = i + FIRSTCOL;
-
- rc = 0;
- area = fontfcnB(S, codename, &len, &rc);
- if (rc < 0) {
- rc = Type1ReturnCodeToXReturnCode(rc);
- break;
- }
- else if (rc > 0)
- continue;
-
- if (area == NULL)
- continue;
-
- h = area->ymax - area->ymin;
- w = area->xmax - area->xmin;
- paddedW = PAD(w, pad);
-
- if (h > 0 && w > 0) {
- size = h * paddedW / 8;
- glyphs[i].bits = (char *)xalloc(size);
- if (glyphs[i].bits == NULL) {
- rc = AllocError;
- break;
- }
- }
- else {
- size = 0;
- h = w = 0;
- area->xmin = area->xmax = 0;
- area->ymax = area->ymax = 0;
- }
-
- glyphs[i].metrics.leftSideBearing = area->xmin;
- x1 = (double)(x0 = area->ending.x - area->origin.x);
- y1 = (double)(area->ending.y - area->origin.y);
- glyphs[i].metrics.characterWidth =
- (x0 + (x0 > 0 ? FPHALF : -FPHALF)) / (1 << FRACTBITS);
- if (!glyphs[i].metrics.characterWidth && size == 0)
- {
- /* Zero size and zero extents: presumably caused by
- the choice of transformation. Let's create a
- small bitmap so we're not mistaken for an undefined
- character. */
- h = w = 1;
- size = paddedW = PAD(w, pad);
- glyphs[i].bits = (char *)xalloc(size);
- if (glyphs[i].bits == NULL) {
- rc = AllocError;
- break;
- }
- }
- glyphs[i].metrics.attributes =
- NEARESTPEL((long)(hypot(x1, y1) * sxmult));
- total_width += glyphs[i].metrics.attributes;
- total_raw_width += abs((int)(INT16)glyphs[i].metrics.attributes);
- count++;
- glyphs[i].metrics.rightSideBearing = w + area->xmin;
- glyphs[i].metrics.descent = area->ymax - NEARESTPEL(area->origin.y);
- glyphs[i].metrics.ascent = h - glyphs[i].metrics.descent;
-
-
- bzero(glyphs[i].bits, size);
- if (h > 0 && w > 0) {
- fill(glyphs[i].bits, h, paddedW, area, byte, bit, wordsize );
- }
-
- Destroy(area);
- }
-
- delmemory();
- xfree(pool);
-
- if (pFont->info.firstCol > pFont->info.lastCol)
- {
- xfree(type1);
- xfree(pFont);
- return BadFontName;
- }
-
- if (i != 256 - FIRSTCOL) {
- for (i--; i >= 0; i--)
- if (glyphs[i].bits != NULL)
- xfree(glyphs[i].bits);
- xfree(type1);
- xfree(pFont);
- return rc;
- }
- type1->pDefault = NULL;
-
- pFont->format = format;
-
- pFont->bit = bit;
- pFont->byte = byte;
- pFont->glyph = glyph;
- pFont->scan = scan;
-
- pFont->info.firstRow = 0;
- pFont->info.lastRow = 0;
-
- pFont->get_metrics = Type1GetMetrics;
- pFont->get_glyphs = Type1GetGlyphs;
- pFont->unload_font = Type1CloseFont;
- pFont->unload_glyphs = NULL;
- pFont->refcnt = 0;
- pFont->maxPrivate = -1;
- pFont->devPrivates = 0;
-
- pFont->fontPrivate = (unsigned char *) type1;
-
- if (count)
- {
- total_raw_width = (total_raw_width * 10 + count / 2) / count;
- if (total_width < 0)
- {
- /* Predominant direction is R->L */
- total_raw_width = -total_raw_width;
- }
- vals->width = (int)((double)total_raw_width *
- vals->pixel_matrix[0] / 1000.0 +
- (vals->pixel_matrix[0] > 0 ? .5 : -.5));
- }
-
- T1FillFontInfo(pFont, vals, fileName, entry->name.name, total_raw_width);
-
- *ppFont = pFont;
- return Successful;
-}
-
-static int
-Type1GetGlyphs(pFont, count, chars, charEncoding, glyphCount, glyphs)
- FontPtr pFont;
- unsigned long count;
- register unsigned char *chars;
- FontEncoding charEncoding;
- unsigned long *glyphCount; /* RETURN */
- CharInfoPtr *glyphs; /* RETURN */
-{
- unsigned int firstRow;
- unsigned int numRows;
- CharInfoPtr *glyphsBase;
- register unsigned int c;
- register CharInfoPtr pci;
- unsigned int r;
- CharInfoPtr pDefault;
- register struct type1font *type1Font;
- register int firstCol;
-
- type1Font = (struct type1font *) pFont->fontPrivate;
- firstCol = pFont->info.firstCol;
- pDefault = type1Font->pDefault;
- glyphsBase = glyphs;
-
- switch (charEncoding) {
-
-#define EXIST(pci) \
- ((pci)->metrics.attributes || \
- (pci)->metrics.ascent != -(pci)->metrics.descent || \
- (pci)->metrics.leftSideBearing != (pci)->metrics.rightSideBearing)
-
- case Linear8Bit:
- case TwoD8Bit:
- if (pFont->info.firstRow > 0)
- break;
- while (count--) {
- c = (*chars++);
- if (c >= firstCol &&
- (pci = &type1Font->glyphs[c-FIRSTCOL]) &&
- EXIST(pci))
- *glyphs++ = pci;
- else if (pDefault)
- *glyphs++ = pDefault;
- }
- break;
- case Linear16Bit:
- while (count--) {
- c = *chars++ << 8;
- c = (c | *chars++);
- if (c < 256 && c >= firstCol &&
- (pci = &type1Font->glyphs[c-FIRSTCOL]) &&
- EXIST(pci))
- *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++);
- if (r < numRows && c < 256 && c >= firstCol &&
- (pci = &type1Font->glyphs[(r << 8) + c - FIRSTCOL]) &&
- EXIST(pci))
- *glyphs++ = pci;
- else if (pDefault)
- *glyphs++ = pDefault;
- }
- break;
- }
- *glyphCount = glyphs - glyphsBase;
- return Successful;
-
-#undef EXIST
-}
-
-static int
-Type1GetMetrics(pFont, count, chars, charEncoding, glyphCount, glyphs)
- FontPtr pFont;
- unsigned long count;
- register unsigned char *chars;
- FontEncoding charEncoding;
- unsigned long *glyphCount; /* RETURN */
- xCharInfo **glyphs; /* RETURN */
-{
- static CharInfoRec nonExistantChar;
-
- int ret;
- struct type1font *type1Font;
- CharInfoPtr oldDefault;
-
- type1Font = (struct type1font *) pFont->fontPrivate;
- oldDefault = type1Font->pDefault;
- type1Font->pDefault = &nonExistantChar;
- ret = Type1GetGlyphs(pFont, count, chars, charEncoding, glyphCount, (CharInfoPtr *) glyphs);
- type1Font->pDefault = oldDefault;
- return ret;
-}
-
-void Type1CloseFont(pFont)
- FontPtr pFont;
-{
- register int i;
- struct type1font *type1;
-
- type1 = (struct type1font *) pFont->fontPrivate;
- for (i=0; i < 256 - FIRSTCOL; i++)
- if (type1->glyphs[i].bits != NULL)
- xfree(type1->glyphs[i].bits);
- xfree(type1);
-
- if (pFont->info.props)
- xfree(pFont->info.props);
-
- if (pFont->info.isStringProp)
- xfree(pFont->info.isStringProp);
-
- if (pFont->devPrivates)
- xfree(pFont->devPrivates);
-
- xfree(pFont);
-}
-
-
-
-static void fill(dest, h, w, area, byte, bit, wordsize)
- register char *dest; /* destination bitmap */
- int h,w; /* dimensions of 'dest', w padded */
- register struct region *area; /* region to write to 'dest' */
- int byte,bit; /* flags; LSBFirst or MSBFirst */
- int wordsize; /* number of bits per word for LSB/MSB purposes */
-{
- register struct edgelist *edge; /* for looping through edges */
- register char *p; /* current scan line in 'dest' */
- register int y; /* for looping through scans */
- register int wbytes = w / 8; /* number of bytes in width */
- register pel *leftP,*rightP; /* pointers to X values, left and right */
- int xmin = area->xmin; /* upper left X */
- int ymin = area->ymin; /* upper left Y */
-
- for (edge = area->anchor; VALIDEDGE(edge); edge = edge->link->link) {
-
- p = dest + (edge->ymin - ymin) * wbytes;
- leftP = edge->xvalues;
- rightP = edge->link->xvalues;
-
- for (y = edge->ymin; y < edge->ymax; y++) {
- fillrun(p, *leftP++ - xmin, *rightP++ - xmin, bit);
- p += wbytes;
- }
- }
-/*
-Now, as an afterthought, we'll go reorganize if odd byte order requires
-it:
-*/
- if (byte == LSBFirst && wordsize != 8) {
- register int i;
-
- switch (wordsize) {
- case 16:
- {
- register unsigned short data,*p;
-
- p = (unsigned short *) dest;
-
- for (i = h * w /16; --i >= 0;) {
- data = *p;
- *p++ = (data << 8) + (data >> 8);
- }
- break;
- }
- case 64:
- case 32:
- {
- register unsigned long data,*p;
-
- p = (unsigned long *) dest;
-
- for (i = h * w / 32; --i >= 0;) {
- data = *p;
- *p++ = (data << 24) + (data >> 24)
- + (0xFF00 & (data >> 8))
- + (0xFF0000 & (data << 8));
- }
- if (wordsize == 64) {
-
- p = (unsigned long *) dest;
-
- for (i = h * w / 64; --i >= 0;) {
- data = *p++;
- p[-1] = p[0];
- *p++ = data;
- }
- }
- break;
- }
- default:
- abort("xiFill: unknown format");
- }
- }
-
-}
-
-#define ALLONES 0xFF
-
-static void fillrun(p, x0, x1, bit)
- register char *p; /* address of this scan line */
- pel x0,x1; /* left and right X */
- int bit; /* format: LSBFirst or MSBFirst */
-{
- register int startmask,endmask; /* bits to set in first and last char*/
- register int middle; /* number of chars between start and end + 1 */
-
- if (x1 <= x0)
- return;
- middle = x1/8 - x0/8;
- p += x0/8;
- x0 &= 7; x1 &= 7;
- if (bit == LSBFirst) {
- startmask = ALLONES << x0;
- endmask = ~(ALLONES << x1);
- }
- else {
- startmask = ALLONES >> x0;
- endmask = ~(ALLONES >> x1);
- }
- if (middle == 0)
- *p++ |= startmask & endmask;
- else {
- *p++ |= startmask;
- while (--middle > 0)
- *p++ = (char)ALLONES;
- *p |= endmask;
- }
-}
-
-#define CAPABILITIES (CAP_MATRIX | CAP_CHARSUBSETTING)
-
-static FontRendererRec renderers[] = {
- { ".pfa", 4, (int (*)()) 0, Type1OpenScalable,
- (int (*)()) 0, Type1GetInfoScalable, 0, CAPABILITIES },
- { ".pfb", 4, (int (*)()) 0, Type1OpenScalable,
- (int (*)()) 0, Type1GetInfoScalable, 0, CAPABILITIES }
-};
-
-
-Type1RegisterFontFileFunctions()
-{
- int i;
-
- T1InitStdProps();
- for (i=0; i < sizeof(renderers) / sizeof(FontRendererRec); i++)
- FontFileRegisterRenderer(&renderers[i]);
-}
-
-int Type1ReturnCodeToXReturnCode(rc)
- int rc;
-{
- switch(rc) {
- case SCAN_OK:
- return Successful;
- case SCAN_FILE_EOF:
- /* fall through to BadFontFormat */
- case SCAN_ERROR:
- return BadFontFormat;
- case SCAN_OUT_OF_MEMORY:
- return AllocError;
- case SCAN_FILE_OPEN_ERROR:
- return BadFontName;
- case SCAN_TRUE:
- case SCAN_FALSE:
- case SCAN_END:
- /* fall through */
- default:
- /* this should not happen */
- ErrorF("Type1 return code not convertable to X return code: %d\n", rc);
- return rc;
- }
-}
projects / rdpsrv / blobdiff