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Diffstat (limited to 'Build/source/texk/dvipng/dvipng-1.13/fontmap.c')
-rw-r--r--Build/source/texk/dvipng/dvipng-1.13/fontmap.c340
1 files changed, 340 insertions, 0 deletions
diff --git a/Build/source/texk/dvipng/dvipng-1.13/fontmap.c b/Build/source/texk/dvipng/dvipng-1.13/fontmap.c
new file mode 100644
index 00000000000..c779d6674b4
--- /dev/null
+++ b/Build/source/texk/dvipng/dvipng-1.13/fontmap.c
@@ -0,0 +1,340 @@
+/* fontmap.c */
+
+/************************************************************************
+
+ Part of the dvipng distribution
+
+ This program 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 3 of the
+ License, or (at your option) any later version.
+
+ This program 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.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this program. If not, see
+ <http://www.gnu.org/licenses/>.
+
+ Copyright (C) 2002-2010 Jan-Åke Larsson
+
+************************************************************************/
+
+#include "dvipng.h"
+
+static struct filemmap psfont_mmap;
+#ifdef HAVE_FT2
+static struct filemmap ttfont_mmap;
+#endif
+static struct psfontmap *psfontmap=NULL;
+
+static char* newword(char** buffer, char* end)
+{
+ char *word,*pos=*buffer;
+
+ while(pos<end && *pos!=' ' && *pos!='\t' && *pos!='"') pos++;
+ if ((word=malloc(pos-*buffer+1))==NULL)
+ Fatal("cannot malloc space for string");
+ strncpy(word,*buffer,pos-*buffer);
+ word[pos-*buffer]='\0';
+ *buffer=pos;
+ return(word);
+}
+
+char* copyword(char* orig)
+{
+ char *word;
+
+ if (orig==NULL)
+ return(NULL);
+ if ((word=malloc(strlen(orig)+1))==NULL)
+ Fatal("cannot malloc space for string");
+ strcpy(word,orig);
+ return(word);
+}
+
+static char* find_format(const char* name)
+{
+ /* Cater for both new (first case) and old (second case) kpathsea */
+ char* format =
+ kpse_find_file(name,kpse_fontmap_format,false);
+
+ if (format==NULL)
+ format = kpse_find_file(name,kpse_dvips_config_format,false);
+ return(format);
+}
+
+void InitPSFontMap(void)
+{
+ char* psfont_name=NULL;
+ /* Prefer ps2pk.map, fonts are present more often */
+ psfont_name=find_format("ps2pk.map");
+ if (psfont_name==NULL)
+ psfont_name=find_format("psfonts.map");
+ if (psfont_name==NULL) {
+ Warning("cannot find ps2pk.map, nor psfonts.map");
+ } else {
+ DEBUG_PRINT((DEBUG_FT|DEBUG_T1),
+ ("\n OPEN PSFONT MAP:\t'%s'", psfont_name));
+ if (MmapFile(psfont_name,&psfont_mmap)) {
+ Warning("psfonts map %s could not be opened", psfont_name);
+ }
+ free(psfont_name);
+ }
+#ifdef HAVE_FT2
+ psfont_name=find_format("ttfonts.map");
+ if (psfont_name!=NULL) {
+ DEBUG_PRINT(DEBUG_FT,("\n OPEN TTFONT MAP:\t'%s'", psfont_name));
+ if (MmapFile(psfont_name,&ttfont_mmap)) {
+ Warning("ttfonts map %s could not be opened", psfont_name);
+ }
+ free(psfont_name);
+ }
+#endif
+}
+
+struct psfontmap *NewPSFont(struct psfontmap* copyfrom)
+{
+ struct psfontmap *newentry=NULL;
+ if ((newentry=malloc(sizeof(struct psfontmap)))==NULL)
+ Fatal("cannot malloc psfontmap space");
+ if (copyfrom!=NULL) {
+ newentry->line = copyfrom->line;
+ newentry->tfmname = copyword(copyfrom->tfmname);
+ newentry->psfile = copyword(copyfrom->psfile);
+ newentry->encname = copyword(copyfrom->encname);
+ newentry->encoding = copyfrom->encoding;
+#ifdef HAVE_LIBT1
+ newentry->t1_transformp = copyfrom->t1_transformp;
+#endif
+#ifdef HAVE_FT2
+ newentry->ft_transformp = copyfrom->ft_transformp;
+ newentry->subfont = copyfrom->subfont;
+#endif
+ newentry->end = copyfrom->end;
+ } else {
+ newentry->line = NULL;
+ newentry->tfmname = NULL;
+ newentry->psfile = NULL;
+ newentry->encname = NULL;
+ newentry->encoding = NULL;
+#ifdef HAVE_LIBT1
+ newentry->t1_transformp = NULL;
+#endif
+#ifdef HAVE_FT2
+ newentry->ft_transformp = NULL;
+ newentry->subfont = NULL;
+#endif
+ newentry->end = NULL;
+ }
+ newentry->next=psfontmap;
+ psfontmap=newentry;
+ return(newentry);
+}
+
+static struct psfontmap *SearchPSFontMap(char* fontname,
+ struct filemmap* search_mmap)
+{
+ static char *pos=NULL,*end=NULL;
+ static struct filemmap* searching_mmap=NULL;
+ struct psfontmap *entry=NULL;
+
+ if (pos==end && search_mmap!=searching_mmap) {
+ searching_mmap=search_mmap;
+ pos=searching_mmap->data;
+ end=searching_mmap->data+searching_mmap->size;
+ }
+ while(pos<end && (entry==NULL || strcmp(entry->tfmname,fontname)!=0)) {
+ while(pos < end
+ && (*pos=='\n' || *pos==' ' || *pos=='\t'
+ || *pos=='%' || *pos=='*' || *pos==';' || *pos=='#')) {
+ while(pos < end && *pos!='\n') pos++; /* skip comments/empty rows */
+ pos++;
+ }
+ if (pos < end) {
+ entry=NewPSFont(NULL);
+ entry->line = pos;
+ /* skip <something and quoted entries */
+ while(pos < end && (*pos=='<' || *pos=='"')) {
+ if (*pos=='<')
+ while(pos < end && *pos!=' ' && *pos!='\t') pos++;
+ else
+ while(pos < end && *pos!='"') pos++;
+ while(pos < end && (*pos==' ' || *pos=='\t')) pos++;
+ }
+ /* first word is font name */
+ entry->tfmname = newword(&pos,end);
+ while(pos < end && *pos!='\n') pos++;
+ entry->end = pos;
+ }
+ pos++;
+ }
+ if (entry!=NULL && strcmp(entry->tfmname,fontname)!=0)
+ entry=NULL;
+ return(entry);
+}
+
+void ClearPSFontMap(void)
+{
+ struct psfontmap *entry;
+
+ while(psfontmap!=NULL) {
+ entry=psfontmap;
+ psfontmap=psfontmap->next;
+ free(entry->tfmname);
+ if (entry->psfile!=NULL)
+ free(entry->psfile);
+ if (entry->encname!=NULL)
+ free(entry->encname);
+ free(entry);
+ }
+ UnMmapFile(&psfont_mmap);
+#ifdef HAVE_FT2
+ UnMmapFile(&ttfont_mmap);
+#endif
+}
+
+static void ReadPSFontMap(struct psfontmap *entry)
+{
+ char *pos,*end,*psname;
+ int nameno = 0;
+
+ DEBUG_PRINT((DEBUG_FT|DEBUG_T1),("\n PSFONTMAP: %s ",entry->tfmname));
+ pos=entry->line;
+ end=entry->end;
+ while(pos < end) {
+ if (*pos=='<') { /* filename follows */
+ pos++;
+ if (pos<end && *pos=='<') { /* <<download.font */
+ pos++;
+ entry->psfile = newword((char**)&pos,end);
+ DEBUG_PRINT((DEBUG_FT|DEBUG_T1),("<%s ",entry->psfile));
+ } else if (pos<end && *pos=='[') { /* <[encoding.file */
+ pos++;
+ entry->encname = newword((char**)&pos,end);
+ DEBUG_PRINT((DEBUG_FT|DEBUG_T1),("<[%s ",entry->encname));
+ } else { /* <some.file */
+ char* word =newword((char**)&pos,end);
+ if (strncmp(word+strlen(word)-4,".enc",4)==0) {/* <some.enc */
+ entry->encname=word;
+ DEBUG_PRINT((DEBUG_FT|DEBUG_T1),("<[%s ",entry->encname));
+ } else { /* <font */
+ entry->psfile=word;
+ DEBUG_PRINT((DEBUG_FT|DEBUG_T1),("<%s ",entry->psfile));
+ }
+ }
+ } else if (*pos=='"') { /* PS code: reencoding/tranformation exists */
+ char *word;
+ double cxx=1.0,cxy=0.0;
+ pos++;
+ DEBUG_PRINT((DEBUG_FT|DEBUG_T1),("\""));
+ while(pos < end && *pos!='"') {
+ word=newword((char**)&pos,end);
+ while(pos < end && (*pos==' ' || *pos=='\t')) pos++;
+ if (pos+10<end && strncmp(pos,"ExtendFont",10)==0) {
+ cxx=strtod(word,NULL);
+ pos+=10;
+ DEBUG_PRINT((DEBUG_FT|DEBUG_T1),("%f ExtendFont ",cxx));
+ } else if (pos+9<end && strncmp(pos,"SlantFont",9)==0) {
+ pos+=9;
+ cxy=strtod(word,NULL);
+ DEBUG_PRINT((DEBUG_FT|DEBUG_T1),("%f SlantFont ",cxy));
+ } else if (pos+12<end && strncmp(pos,"ReEncodeFont",12)==0) {
+ pos+=12;
+ DEBUG_PRINT((DEBUG_FT|DEBUG_T1),("%s ReEncodeFont ",word));
+ } else {
+ DEBUG_PRINT((DEBUG_FT|DEBUG_T1),("(?:%s) ",word));
+ }
+ free(word);
+ }
+#ifdef HAVE_FT2
+ entry->ft_transformp=&(entry->ft_transform);
+ entry->ft_transform.xx=(FT_Fixed)(cxx*0x10000);
+ entry->ft_transform.xy=(FT_Fixed)(cxy*0x10000);
+ entry->ft_transform.yx=0;
+ entry->ft_transform.yy=0x10000;
+#endif
+#ifdef HAVE_LIBT1
+ entry->t1_transformp=&(entry->t1_transform);
+ entry->t1_transform.cxx=cxx;
+ entry->t1_transform.cxy=cxy;
+ entry->t1_transform.cyx=0.0;
+ entry->t1_transform.cyy=1.0;
+#endif
+ DEBUG_PRINT((DEBUG_FT|DEBUG_T1),("\" "));
+ pos++;
+ } else { /* bare word */
+ switch (++nameno) {
+ case 1: /* first word is tfmname and perhaps psname, NOT psfile */
+ while(pos<end && *pos!=' ' && *pos!='\t') pos++;
+ psname=entry->tfmname;
+ break;
+ case 2: /* second word is psname, NOT psfile */
+ psname = newword((char**)&pos,end);
+ DEBUG_PRINT((DEBUG_FT|DEBUG_T1),("(%s) ",psname));
+ free(psname);
+ break;
+ case 3: /* third word is encoding */
+ entry->encname = newword((char**)&pos,end);
+ DEBUG_PRINT((DEBUG_FT|DEBUG_T1),("<[%s ",entry->encname));
+ break;
+ default:
+ while(pos<end && *pos!=' ' && *pos!='\t') pos++;
+ Warning("more than three bare words in font map entry");
+ }
+ }
+ while(pos < end && (*pos==' ' || *pos=='\t')) pos++;
+ }
+ if (entry->psfile==NULL) {
+ /* No psfile-name given, use tfmname */
+ entry->psfile=copyword(entry->tfmname);
+ DEBUG_PRINT((DEBUG_FT|DEBUG_T1),(" <%s ",entry->psfile));
+ }
+ if (entry->encname!=NULL
+ && (entry->encoding=FindEncoding(entry->encname))==NULL)
+ Warning("unable to load font encoding '%s' for %s",
+ entry->encname,entry->tfmname);
+}
+
+
+struct psfontmap* FindPSFontMap(char* fontname)
+{
+ struct psfontmap *entry;
+ static struct filemmap* search_mmap_p=&psfont_mmap;
+
+ entry=psfontmap;
+ while(entry!=NULL && strcmp(entry->tfmname,fontname)!=0)
+ entry=entry->next;
+ if(entry==NULL) {
+ entry=SearchPSFontMap(fontname,search_mmap_p);
+#ifdef HAVE_FT2
+ if(entry==NULL && search_mmap_p!=&ttfont_mmap) {
+ search_mmap_p=&ttfont_mmap;
+ entry=SearchPSFontMap(fontname,search_mmap_p);
+ }
+ }
+ if(entry==NULL) {
+ struct psfontmap* entry_subfont=NULL;
+ entry=psfontmap;
+ while(entry!=NULL && strcmp(entry->tfmname,fontname)!=0) {
+ while(entry!=NULL && strchr(entry->tfmname,'@')==NULL)
+ entry=entry->next;
+ if (entry!=NULL) {
+ entry_subfont=FindSubFont(entry,fontname);
+ if (entry_subfont!=NULL)
+ entry=entry_subfont;
+ else
+ entry=entry->next;
+ }
+ }
+#endif
+ }
+ if (entry!=NULL && entry->psfile==NULL)
+ ReadPSFontMap(entry);
+ if (entry!=NULL && entry->encname!=NULL && entry->encoding==NULL)
+ /* Encoding given but it cannot be found. Unusable font */
+ return(NULL);
+ return(entry);
+}
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