/*
- * Adobe Font Metric (AFM) file parsing
- * See http://www.adobe.com/supportservice/devrelations/PDFS/TN/5004.AFM_Spec.pdf
+ * Font metric functions common to Type 1 (AFM) and TrueType font files.
+ * Functions specific to Type 1 and TrueType fonts are in type1afm.c and
+ * truetype.c respectively.
*
* Copyright 1998 Huw D M Davies
- *
- */
-
-#include <string.h>
-#include <stdio.h>
-#include "winnt.h" /* HEAP_ZERO_MEMORY */
-#include "psdrv.h"
-#include "options.h"
-#include "debugtools.h"
-#include "heap.h"
-
-DEFAULT_DEBUG_CHANNEL(psdrv);
-#include <ctype.h>
-
-/* ptr to fonts for which we have afm files */
-FONTFAMILY *PSDRV_AFMFontList = NULL;
-
-
-/***********************************************************
+ * Copyright 2001 Ian Pilcher
*
- * PSDRV_AFMGetCharMetrics
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
*
- * Parses CharMetric section of AFM file.
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
*
- * Actually only collects the widths of numbered chars and puts then in
- * afm->CharWidths.
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-static void PSDRV_AFMGetCharMetrics(AFM *afm, FILE *fp)
-{
- char line[256], valbuf[256];
- char *cp, *item, *value, *curpos, *endpos;
- int i;
- AFMMETRICS *metric;
-
- afm->Metrics = metric = HeapAlloc( PSDRV_Heap, HEAP_ZERO_MEMORY,
- afm->NumofMetrics * sizeof(AFMMETRICS) );
- for(i = 0; i < afm->NumofMetrics; i++, metric++) {
-
- if(!fgets(line, sizeof(line), fp)) {
- ERR("Unexpected EOF\n");
- return;
- }
- cp = line + strlen(line);
- do {
- *cp = '\0';
- cp--;
- } while(cp > line && isspace(*cp));
-
- curpos = line;
- while(*curpos) {
- item = curpos;
- while(isspace(*item))
- item++;
- value = strpbrk(item, " \t");
- while(isspace(*value))
- value++;
- cp = endpos = strchr(value, ';');
- while(isspace(*--cp))
- ;
- memcpy(valbuf, value, cp - value + 1);
- valbuf[cp - value + 1] = '\0';
- value = valbuf;
-
- if(!strncmp(item, "C ", 2)) {
- value = strchr(item, ' ');
- sscanf(value, " %d", &metric->C);
-
- } else if(!strncmp(item, "CH ", 3)) {
- value = strrchr(item, ' ');
- sscanf(value, " %x", &metric->C);
- }
-
- else if(!strncmp("WX ", item, 3) || !strncmp("W0X ", item, 4)) {
- sscanf(value, "%f", &metric->WX);
- if(metric->C >= 0 && metric->C <= 0xff)
- afm->CharWidths[metric->C] = metric->WX;
- }
-
- else if(!strncmp("N ", item, 2)) {
- strncpy( metric->N, value, sizeof(metric->N) );
- }
-
- else if(!strncmp("B ", item, 2)) {
- sscanf(value, "%f%f%f%f", &metric->B.llx, &metric->B.lly,
- &metric->B.urx, &metric->B.ury);
-
- /* Store height of Aring to use as lfHeight */
- if(metric->N && !strncmp(metric->N, "Aring", 5))
- afm->FullAscender = metric->B.ury;
- }
-
- /* Ligatures go here... */
-
- curpos = endpos + 1;
- }
-
-#if 0
- TRACE("Metrics for '%s' WX = %f B = %f,%f - %f,%f\n",
- metric->N, metric->WX, metric->B.llx, metric->B.lly,
- metric->B.urx, metric->B.ury);
-#endif
- }
-
- return;
-}
-
-/***********************************************************
- *
- * PSDRV_AFMParse
- *
- * Fills out an AFM structure and associated substructures (see psdrv.h)
- * for a given AFM file. All memory is allocated from the process heap.
- * Returns a ptr to the AFM structure or NULL on error.
- *
- * This is not complete (we don't handle kerning yet) and not efficient
- */
-static AFM *PSDRV_AFMParse(char const *file)
-{
- FILE *fp;
- char buf[256];
- char *value;
- AFM *afm;
- char *cp;
- TRACE("parsing '%s'\n", file);
+#include "config.h"
- if((fp = fopen(file, "r")) == NULL) {
- MESSAGE("Can't open AFM file '%s'. Please check wine.conf .\n", file);
- return NULL;
- }
-
- afm = HeapAlloc(PSDRV_Heap, HEAP_ZERO_MEMORY, sizeof(AFM));
- if(!afm) {
- fclose(fp);
- return NULL;
- }
-
- while(fgets(buf, sizeof(buf), fp)) {
- cp = buf + strlen(buf);
- do {
- *cp = '\0';
- cp--;
- } while(cp > buf && isspace(*cp));
-
- value = strchr(buf, ' ');
- if(value)
- while(isspace(*value))
- value++;
-
- if(!strncmp("FontName", buf, 8)) {
- afm->FontName = HEAP_strdupA(PSDRV_Heap, 0, value);
- continue;
- }
-
- if(!strncmp("FullName", buf, 8)) {
- afm->FullName = HEAP_strdupA(PSDRV_Heap, 0, value);
- continue;
- }
-
- if(!strncmp("FamilyName", buf, 10)) {
- afm->FamilyName = HEAP_strdupA(PSDRV_Heap, 0, value);
- continue;
- }
-
- if(!strncmp("Weight", buf, 6)) {
- if(!strncmp("Roman", value, 5) || !strncmp("Medium", value, 6)
- || !strncmp("Book", value, 4) || !strncmp("Regular", value, 7)
- || !strncmp("Normal", value, 6))
- afm->Weight = FW_NORMAL;
- else if(!strncmp("Demi", value, 4))
- afm->Weight = FW_DEMIBOLD;
- else if(!strncmp("Bold", value, 4))
- afm->Weight = FW_BOLD;
- else if(!strncmp("Light", value, 5))
- afm->Weight = FW_LIGHT;
- else if(!strncmp("Black", value, 5))
- afm->Weight = FW_BLACK;
- else {
- FIXME("Unkown AFM Weight '%s'\n", value);
- afm->Weight = FW_NORMAL;
- }
- continue;
- }
-
- if(!strncmp("ItalicAngle", buf, 11)) {
- sscanf(value, "%f", &(afm->ItalicAngle));
- continue;
- }
-
- if(!strncmp("IsFixedPitch", buf, 12)) {
- if(!strncasecmp("false", value, 5))
- afm->IsFixedPitch = FALSE;
- else
- afm->IsFixedPitch = TRUE;
- continue;
- }
-
- if(!strncmp("FontBBox", buf, 8)) {
- sscanf(value, "%f %f %f %f", &(afm->FontBBox.llx),
- &(afm->FontBBox.lly), &(afm->FontBBox.urx),
- &(afm->FontBBox.ury) );
- continue;
- }
-
- if(!strncmp("UnderlinePosition", buf, 17)) {
- sscanf(value, "%f", &(afm->UnderlinePosition) );
- continue;
- }
-
- if(!strncmp("UnderlineThickness", buf, 18)) {
- sscanf(value, "%f", &(afm->UnderlineThickness) );
- continue;
- }
-
- if(!strncmp("CapHeight", buf, 9)) {
- sscanf(value, "%f", &(afm->CapHeight) );
- continue;
- }
-
- if(!strncmp("XHeight", buf, 7)) {
- sscanf(value, "%f", &(afm->XHeight) );
- continue;
- }
-
- if(!strncmp("Ascender", buf, 8)) {
- sscanf(value, "%f", &(afm->Ascender) );
- continue;
- }
+#include <string.h>
- if(!strncmp("Descender", buf, 9)) {
- sscanf(value, "%f", &(afm->Descender) );
- continue;
- }
+#include "psdrv.h"
+#include "wine/debug.h"
- if(!strncmp("StartCharMetrics", buf, 16)) {
- sscanf(value, "%d", &(afm->NumofMetrics) );
- PSDRV_AFMGetCharMetrics(afm, fp);
- continue;
- }
+WINE_DEFAULT_DEBUG_CHANNEL(psdrv);
- if(!strncmp("EncodingScheme", buf, 14)) {
- afm->EncodingScheme = HEAP_strdupA(PSDRV_Heap, 0, value);
- continue;
- }
+/* ptr to fonts for which we have afm files */
+FONTFAMILY *PSDRV_AFMFontList = NULL;
- }
- fclose(fp);
-
- if(afm->FontName == NULL)
- WARN("%s contains no FontName.\n", file);
- if(afm->FullName == NULL)
- afm->FullName = HEAP_strdupA(PSDRV_Heap, 0, afm->FontName);
- if(afm->FamilyName == NULL)
- afm->FamilyName = HEAP_strdupA(PSDRV_Heap, 0, afm->FontName);
- if(afm->Ascender == 0.0)
- afm->Ascender = afm->FontBBox.ury;
- if(afm->Descender == 0.0)
- afm->Descender = afm->FontBBox.lly;
- if(afm->FullAscender == 0.0)
- afm->FullAscender = afm->Ascender;
- if(afm->Weight == 0)
- afm->Weight = FW_NORMAL;
-
- return afm;
-}
/***********************************************************
*
* Returns ptr to an AFM if name (which is a PS font name) exists in list
* headed by head.
*/
-AFM *PSDRV_FindAFMinList(FONTFAMILY *head, char *name)
+const AFM *PSDRV_FindAFMinList(FONTFAMILY *head, LPCSTR name)
{
FONTFAMILY *family;
AFMLISTENTRY *afmle;
*
* PSDRV_AddAFMtoList
*
- * Adds an afm to the list whose head is pointed to by head. Creates new
- * family node if necessary and always creates a new AFMLISTENTRY.
+ * Adds an afm to the list whose head is pointed to by head. Creates new
+ * family node if necessary and always creates a new AFMLISTENTRY.
+ *
+ * Returns FALSE for memory allocation error; returns TRUE, but sets *p_added
+ * to FALSE, for duplicate.
*/
-void PSDRV_AddAFMtoList(FONTFAMILY **head, AFM *afm)
+BOOL PSDRV_AddAFMtoList(FONTFAMILY **head, const AFM *afm, BOOL *p_added)
{
FONTFAMILY *family = *head;
FONTFAMILY **insert = head;
newafmle = HeapAlloc(PSDRV_Heap, HEAP_ZERO_MEMORY,
sizeof(*newafmle));
+ if (newafmle == NULL)
+ return FALSE;
+
newafmle->afm = afm;
while(family) {
insert = &(family->next);
family = family->next;
}
-
+
if(!family) {
family = HeapAlloc(PSDRV_Heap, HEAP_ZERO_MEMORY,
sizeof(*family));
+ if (family == NULL) {
+ HeapFree(PSDRV_Heap, 0, newafmle);
+ return FALSE;
+ }
*insert = family;
- family->FamilyName = HEAP_strdupA(PSDRV_Heap, 0,
- afm->FamilyName);
+ if (!(family->FamilyName = HeapAlloc(PSDRV_Heap, 0, strlen(afm->FamilyName)+1 ))) {
+ HeapFree(PSDRV_Heap, 0, family);
+ HeapFree(PSDRV_Heap, 0, newafmle);
+ return FALSE;
+ }
+ strcpy( family->FamilyName, afm->FamilyName );
family->afmlist = newafmle;
- return;
+ *p_added = TRUE;
+ return TRUE;
+ }
+ else {
+ tmpafmle = family->afmlist;
+ while (tmpafmle) {
+ if (!strcmp(tmpafmle->afm->FontName, afm->FontName)) {
+ WARN("Ignoring duplicate FontName '%s'\n", afm->FontName);
+ HeapFree(PSDRV_Heap, 0, newafmle);
+ *p_added = FALSE;
+ return TRUE; /* not a fatal error */
+ }
+ tmpafmle = tmpafmle->next;
+ }
}
-
+
tmpafmle = family->afmlist;
while(tmpafmle->next)
tmpafmle = tmpafmle->next;
tmpafmle->next = newafmle;
- return;
+ *p_added = TRUE;
+ return TRUE;
}
-/**********************************************************
- *
- * PSDRV_ReencodeCharWidths
+
+/***********************************************************
*
- * Re map the CharWidths field of the afm to correspond to an ANSI encoding
+ * PSDRV_DumpFontList
*
*/
-static void PSDRV_ReencodeCharWidths(AFM *afm)
+static void PSDRV_DumpFontList(void)
{
- int i, j;
- AFMMETRICS *metric;
-
- for(i = 0; i < 256; i++) {
- if(isalnum(i))
- continue;
- if(PSDRV_ANSIVector[i] == NULL) {
- afm->CharWidths[i] = 0.0;
- continue;
- }
- for (j = 0, metric = afm->Metrics; j < afm->NumofMetrics; j++, metric++) {
- if(!strcmp(metric->N, PSDRV_ANSIVector[i])) {
- afm->CharWidths[i] = metric->WX;
- break;
+ FONTFAMILY *family;
+ AFMLISTENTRY *afmle;
+
+ for(family = PSDRV_AFMFontList; family; family = family->next) {
+ TRACE("Family '%s'\n", family->FamilyName);
+ for(afmle = family->afmlist; afmle; afmle = afmle->next)
+ {
+#if 0
+ INT i;
+#endif
+
+ TRACE("\tFontName '%s' (%i glyphs) - '%s' encoding:\n",
+ afmle->afm->FontName, afmle->afm->NumofMetrics,
+ afmle->afm->EncodingScheme);
+
+ /* Uncomment to regenerate font data; see afm2c.c */
+
+ /* PSDRV_AFM2C(afmle->afm); */
+
+#if 0
+ for (i = 0; i < afmle->afm->NumofMetrics; ++i)
+ {
+ TRACE("\t\tU+%.4lX; C %i; N '%s'\n", afmle->afm->Metrics[i].UV,
+ afmle->afm->Metrics[i].C, afmle->afm->Metrics[i].N->sz);
}
- }
- if(j == afm->NumofMetrics) {
- WARN("Couldn't find glyph '%s' in font '%s'\n",
- PSDRV_ANSIVector[i], afm->FontName);
- afm->CharWidths[i] = 0.0;
+#endif
}
}
return;
}
-/***********************************************************
+/*******************************************************************************
+ * PSDRV_CalcAvgCharWidth
*
- * PSDRV_DumpFontList
+ * Calculate WinMetrics.sAvgCharWidth for a Type 1 font. Can also be used on
+ * TrueType fonts, if font designer set OS/2:xAvgCharWidth to zero.
*
+ * Tries to use formula in TrueType specification; falls back to simple mean
+ * if any lowercase latin letter (or space) is not present.
*/
-static void PSDRV_DumpFontList(void)
+inline static SHORT MeanCharWidth(const AFM *afm)
{
- FONTFAMILY *family;
- AFMLISTENTRY *afmle;
+ float w = 0.0;
+ int i;
- for(family = PSDRV_AFMFontList; family; family = family->next) {
- TRACE("Family '%s'\n", family->FamilyName);
- for(afmle = family->afmlist; afmle; afmle = afmle->next) {
- TRACE("\tFontName '%s'\n", afmle->afm->FontName);
- }
+ for (i = 0; i < afm->NumofMetrics; ++i)
+ w += afm->Metrics[i].WX;
+
+ w /= afm->NumofMetrics;
+
+ return (SHORT)(w + 0.5);
+}
+
+static const struct { LONG UV; int weight; } UVweight[27] =
+{
+ { 0x0061, 64 }, { 0x0062, 14 }, { 0x0063, 27 }, { 0x0064, 35 },
+ { 0x0065, 100 }, { 0x0066, 20 }, { 0x0067, 14 }, { 0x0068, 42 },
+ { 0x0069, 63 }, { 0x006a, 3 }, { 0x006b, 6 }, { 0x006c, 35 },
+ { 0x006d, 20 }, { 0x006e, 56 }, { 0x006f, 56 }, { 0x0070, 17 },
+ { 0x0071, 4 }, { 0x0072, 49 }, { 0x0073, 56 }, { 0x0074, 71 },
+ { 0x0075, 31 }, { 0x0076, 10 }, { 0x0077, 18 }, { 0x0078, 3 },
+ { 0x0079, 18 }, { 0x007a, 2 }, { 0x0020, 166 }
+};
+
+SHORT PSDRV_CalcAvgCharWidth(const AFM *afm)
+{
+ float w = 0.0;
+ int i;
+
+ for (i = 0; i < 27; ++i)
+ {
+ const AFMMETRICS *afmm;
+
+ afmm = PSDRV_UVMetrics(UVweight[i].UV, afm);
+ if (afmm->UV != UVweight[i].UV) /* UVMetrics returns first glyph */
+ return MeanCharWidth(afm); /* in font if UV is missing */
+
+ w += afmm->WX * (float)(UVweight[i].weight);
}
- return;
+
+ w /= 1000.0;
+
+ return (SHORT)(w + 0.5);
+}
+
+
+/*******************************************************************************
+ * AddBuiltinAFMs
+ *
+ */
+
+static BOOL AddBuiltinAFMs()
+{
+ const AFM *const *afm = PSDRV_BuiltinAFMs;
+
+ while (*afm != NULL)
+ {
+ BOOL added;
+
+ if (PSDRV_AddAFMtoList(&PSDRV_AFMFontList, *afm, &added) == FALSE)
+ return FALSE;
+
+ if (added == FALSE)
+ TRACE("Ignoring built-in font %s\n", (*afm)->FontName);
+
+ ++afm;
+ }
+
+ return TRUE;
}
*
* PSDRV_GetFontMetrics
*
- * Only exported function in this file. Parses all afm files listed in
- * [afmfiles] of wine.conf .
+ * Parses all afm files listed in [afmdirs] and [TrueType Font Directories]
+ * sections of Wine configuration file. Adds built-in data last, so it can
+ * be overridden by user-supplied AFM or TTF files.
+ *
+ * If this function fails, PSDRV_Init will destroy PSDRV_Heap, so don't worry
+ * about freeing all the memory that's been allocated.
*/
+
BOOL PSDRV_GetFontMetrics(void)
{
- int idx = 0;
- char key[256];
- char value[256];
+ if (PSDRV_GlyphListInit() != 0)
+ return FALSE;
+
+ if (PSDRV_GetType1Metrics() == FALSE)
+ return FALSE;
+
+#ifdef HAVE_FREETYPE
+ if (PSDRV_GetTrueTypeMetrics() == FALSE)
+ return FALSE;
+#endif
+
+ if (AddBuiltinAFMs() == FALSE)
+ return FALSE;
+
+ PSDRV_IndexGlyphList(); /* Enable fast searching of glyph names */
- while (PROFILE_EnumWineIniString( "afmfiles", idx++, key, sizeof(key), value, sizeof(value)))
- {
- AFM *afm = PSDRV_AFMParse(value);
- if (afm)
- {
- if(afm->EncodingScheme &&
- !strcmp(afm->EncodingScheme, "AdobeStandardEncoding")) {
- PSDRV_ReencodeCharWidths(afm);
- }
- PSDRV_AddAFMtoList(&PSDRV_AFMFontList, afm);
- }
- }
PSDRV_DumpFontList();
+
return TRUE;
}
-