summaryrefslogtreecommitdiffstats
path: root/sub/font_load.c
diff options
context:
space:
mode:
Diffstat (limited to 'sub/font_load.c')
-rw-r--r--sub/font_load.c356
1 files changed, 356 insertions, 0 deletions
diff --git a/sub/font_load.c b/sub/font_load.c
new file mode 100644
index 0000000000..e9980b8e41
--- /dev/null
+++ b/sub/font_load.c
@@ -0,0 +1,356 @@
+/*
+ * This file is part of MPlayer.
+ *
+ * MPlayer is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * MPlayer 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with MPlayer; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include "font_load.h"
+#include "mp_msg.h"
+
+raw_file* load_raw(char *name,int verbose){
+ int bpp;
+ raw_file* raw=malloc(sizeof(raw_file));
+ unsigned char head[32];
+ FILE *f=fopen(name,"rb");
+ if(!f) goto err_out; // can't open
+ if(fread(head,32,1,f)<1) goto err_out; // too small
+ if(memcmp(head,"mhwanh",6)) goto err_out; // not raw file
+ raw->w=head[8]*256+head[9];
+ raw->h=head[10]*256+head[11];
+ raw->c=head[12]*256+head[13];
+ if(raw->w == 0) // 2 bytes were not enough for the width... read 4 bytes from the end of the header
+ raw->w = ((head[28]*0x100 + head[29])*0x100 + head[30])*0x100 + head[31];
+ if(raw->c>256) goto err_out; // too many colors!?
+ mp_msg(MSGT_OSD, MSGL_DBG2, "RAW: %s %d x %d, %d colors\n",name,raw->w,raw->h,raw->c);
+ if(raw->c){
+ raw->pal=malloc(raw->c*3);
+ fread(raw->pal,3,raw->c,f);
+ bpp=1;
+ } else {
+ raw->pal=NULL;
+ bpp=3;
+ }
+ raw->bmp=malloc(raw->h*raw->w*bpp);
+ fread(raw->bmp,raw->h*raw->w*bpp,1,f);
+ fclose(f);
+ return raw;
+
+err_out:
+ if (f)
+ fclose(f);
+ free(raw);
+ return NULL;
+}
+
+extern int sub_unicode;
+
+font_desc_t* read_font_desc(const char* fname,float factor,int verbose){
+unsigned char sor[1024];
+unsigned char sor2[1024];
+font_desc_t *desc;
+FILE *f = NULL;
+char *dn;
+//struct stat fstate;
+char section[64];
+int i,j;
+int chardb=0;
+int fontdb=-1;
+int version=0;
+int first=1;
+
+desc=malloc(sizeof(font_desc_t));if(!desc) goto fail_out;
+memset(desc,0,sizeof(font_desc_t));
+
+f=fopen(fname,"rt");if(!f){ mp_msg(MSGT_OSD, MSGL_V, "font: can't open file: %s\n",fname); goto fail_out;}
+
+i = strlen (fname) - 9;
+if ((dn = malloc(i+1))){
+ strncpy (dn, fname, i);
+ dn[i]='\0';
+}
+
+desc->fpath = dn; // search in the same dir as fonts.desc
+
+// desc->fpath=get_path("font/");
+// if (stat(desc->fpath, &fstate)!=0) desc->fpath=DATADIR"/font";
+
+
+
+
+// set up some defaults, and erase table
+desc->charspace=2;
+desc->spacewidth=12;
+desc->height=0;
+for(i=0;i<65536;i++) desc->start[i]=desc->width[i]=desc->font[i]=-1;
+
+section[0]=0;
+
+while(fgets(sor,1020,f)){
+ unsigned char* p[8];
+ int pdb=0;
+ unsigned char *s=sor;
+ unsigned char *d=sor2;
+ int ec=' ';
+ int id=0;
+ sor[1020]=0;
+
+ /* skip files that look like: TTF (0x00, 0x01), PFM (0x00, 0x01), PFB
+ * (0x80, 0x01), PCF (0x01, 0x66), fon ("MZ"), gzipped (0x1f, 0x8b) */
+
+ if (first) {
+ if (!sor[0] || sor[1] == 1 || (sor[0] == 'M' && sor[1] == 'Z') || (sor[0] == 0x1f && sor[1] == 0x8b) || (sor[0] == 1 && sor[1] == 0x66)) {
+ mp_msg(MSGT_OSD, MSGL_ERR, "%s doesn't look like a bitmap font description, ignoring.\n", fname);
+ goto fail_out;
+ }
+ first = 0;
+ }
+
+ p[0]=d;++pdb;
+ while(1){
+ int c=*s++;
+ if(c==0 || c==13 || c==10) break;
+ if(!id){
+ if(c==39 || c==34){ id=c;continue;} // idezojel
+ if(c==';' || c=='#') break;
+ if(c==9) c=' ';
+ if(c==' '){
+ if(ec==' ') continue;
+ *d=0; ++d;
+ p[pdb]=d;++pdb;
+ if(pdb>=8) break;
+ continue;
+ }
+ } else {
+ if(id==c){ id=0;continue;} // idezojel
+
+ }
+ *d=c;d++;
+ ec=c;
+ }
+ if(d==sor2) continue; // skip empty lines
+ *d=0;
+
+// printf("params=%d sor=%s\n",pdb,sor);
+// for(i=0;i<pdb;i++) printf(" param %d = '%s'\n",i,p[i]);
+
+ if(pdb==1 && p[0][0]=='['){
+ int len=strlen(p[0]);
+ if(len && len<63 && p[0][len-1]==']'){
+ strcpy(section,p[0]);
+ mp_msg(MSGT_OSD, MSGL_DBG2, "font: Reading section: %s\n",section);
+ if(strcmp(section,"[files]")==0){
+ ++fontdb;
+ if(fontdb>=16){ mp_msg(MSGT_OSD, MSGL_ERR, "font: Too many bitmaps defined.\n");goto fail_out;}
+ }
+ continue;
+ }
+ }
+
+ if(strcmp(section,"[fpath]")==0){
+ if(pdb==1){
+ free (desc->fpath); // release previously allocated memory
+ desc->fpath=strdup(p[0]);
+ continue;
+ }
+ } else
+
+#ifdef __AMIGAOS4__
+#define FONT_PATH_SEP ""
+#else
+//! path seperator for font paths, may not be more than one character
+#define FONT_PATH_SEP "/"
+#endif
+
+ if(strcmp(section,"[files]")==0){
+ char *default_dir=MPLAYER_DATADIR FONT_PATH_SEP "font";
+ if(pdb==2 && strcmp(p[0],"alpha")==0){
+ char *cp;
+ if (!(cp=malloc(strlen(desc->fpath)+strlen(p[1])+2))) goto fail_out;
+
+ snprintf(cp,strlen(desc->fpath)+strlen(p[1])+2,"%s" FONT_PATH_SEP "%s",
+ desc->fpath,p[1]);
+ if(!((desc->pic_a[fontdb]=load_raw(cp,verbose)))){
+ free(cp);
+ if (!(cp=malloc(strlen(default_dir)+strlen(p[1])+2)))
+ goto fail_out;
+ snprintf(cp,strlen(default_dir)+strlen(p[1])+2,"%s" FONT_PATH_SEP "%s",
+ default_dir,p[1]);
+ if (!((desc->pic_a[fontdb]=load_raw(cp,verbose)))){
+ mp_msg(MSGT_OSD, MSGL_ERR, "Can't load font bitmap: %s\n",p[1]);
+ free(cp);
+ goto fail_out;
+ }
+ }
+ free(cp);
+ continue;
+ }
+ if(pdb==2 && strcmp(p[0],"bitmap")==0){
+ char *cp;
+ if (!(cp=malloc(strlen(desc->fpath)+strlen(p[1])+2))) goto fail_out;
+
+ snprintf(cp,strlen(desc->fpath)+strlen(p[1])+2,"%s" FONT_PATH_SEP "%s",
+ desc->fpath,p[1]);
+ if(!((desc->pic_b[fontdb]=load_raw(cp,verbose)))){
+ free(cp);
+ if (!(cp=malloc(strlen(default_dir)+strlen(p[1])+2)))
+ goto fail_out;
+ snprintf(cp,strlen(default_dir)+strlen(p[1])+2,"%s" FONT_PATH_SEP "%s",
+ default_dir,p[1]);
+ if (!((desc->pic_b[fontdb]=load_raw(cp,verbose)))){
+ mp_msg(MSGT_OSD, MSGL_ERR, "Can't load font bitmap: %s\n",p[1]);
+ free(cp);
+ goto fail_out;
+ }
+ }
+ free(cp);
+ continue;
+ }
+ } else
+
+ if(strcmp(section,"[info]")==0){
+ if(pdb==2 && strcmp(p[0],"name")==0){
+ desc->name=strdup(p[1]);
+ continue;
+ }
+ if(pdb==2 && strcmp(p[0],"descversion")==0){
+ version=atoi(p[1]);
+ continue;
+ }
+ if(pdb==2 && strcmp(p[0],"spacewidth")==0){
+ desc->spacewidth=atoi(p[1]);
+ continue;
+ }
+ if(pdb==2 && strcmp(p[0],"charspace")==0){
+ desc->charspace=atoi(p[1]);
+ continue;
+ }
+ if(pdb==2 && strcmp(p[0],"height")==0){
+ desc->height=atoi(p[1]);
+ continue;
+ }
+ } else
+
+ if(strcmp(section,"[characters]")==0){
+ if(pdb==3){
+ int chr=p[0][0];
+ int start=atoi(p[1]);
+ int end=atoi(p[2]);
+ if(sub_unicode && (chr>=0x80)) chr=(chr<<8)+p[0][1];
+ else if(strlen(p[0])!=1) chr=strtol(p[0],NULL,0);
+ if(end<start) {
+ mp_msg(MSGT_OSD, MSGL_WARN, "error in font desc: end<start for char '%c'\n",chr);
+ } else {
+ desc->start[chr]=start;
+ desc->width[chr]=end-start+1;
+ desc->font[chr]=fontdb;
+// printf("char %d '%c' start=%d width=%d\n",chr,chr,desc->start[chr],desc->width[chr]);
+ ++chardb;
+ }
+ continue;
+ }
+ }
+ mp_msg(MSGT_OSD, MSGL_ERR, "Syntax error in font desc: %s",sor);
+ goto fail_out;
+
+}
+fclose(f);
+f = NULL;
+
+ if (first == 1) {
+ mp_msg(MSGT_OSD, MSGL_ERR, "%s is empty or a directory, ignoring.\n", fname);
+ goto fail_out;
+ }
+
+//printf("font: pos of U = %d\n",desc->start[218]);
+
+for(i=0;i<=fontdb;i++){
+ if(!desc->pic_a[i] || !desc->pic_b[i]){
+ mp_msg(MSGT_OSD, MSGL_ERR, "font: Missing bitmap(s) for sub-font #%d\n",i);
+ goto fail_out;
+ }
+ //if(factor!=1.0f)
+ {
+ // re-sample alpha
+ int f=factor*256.0f;
+ int size=desc->pic_a[i]->w*desc->pic_a[i]->h;
+ int j;
+ mp_msg(MSGT_OSD, MSGL_DBG2, "font: resampling alpha by factor %5.3f (%d) ",factor,f);fflush(stdout);
+ for(j=0;j<size;j++){
+ int x=desc->pic_a[i]->bmp[j]; // alpha
+ int y=desc->pic_b[i]->bmp[j]; // bitmap
+
+#ifdef FAST_OSD
+ x=(x<(255-f))?0:1;
+#else
+
+ x=255-((x*f)>>8); // scale
+ //if(x<0) x=0; else if(x>255) x=255;
+ //x^=255; // invert
+
+ if(x+y>255) x=255-y; // to avoid overflows
+
+ //x=0;
+ //x=((x*f*(255-y))>>16);
+ //x=((x*f*(255-y))>>16)+y;
+ //x=(x*f)>>8;if(x<y) x=y;
+
+ if(x<1) x=1; else
+ if(x>=252) x=0;
+#endif
+
+ desc->pic_a[i]->bmp[j]=x;
+// desc->pic_b[i]->bmp[j]=0; // hack
+ }
+ mp_msg(MSGT_OSD, MSGL_DBG2, "DONE!\n");
+ }
+ if(!desc->height) desc->height=desc->pic_a[i]->h;
+}
+
+j='_';if(desc->font[j]<0) j='?';
+for(i=0;i<65536;i++)
+ if(desc->font[i]<0){
+ desc->start[i]=desc->start[j];
+ desc->width[i]=desc->width[j];
+ desc->font[i]=desc->font[j];
+ }
+desc->font[' ']=-1;
+desc->width[' ']=desc->spacewidth;
+
+mp_msg(MSGT_OSD, MSGL_V, "Bitmap font %s loaded successfully! (%d chars)\n",fname,chardb);
+
+return desc;
+
+fail_out:
+ if (f)
+ fclose(f);
+ free(desc->fpath);
+ free(desc->name);
+ free(desc);
+ return NULL;
+}
+
+#ifndef CONFIG_FREETYPE
+void render_one_glyph(font_desc_t *desc, int c) {}
+int kerning(font_desc_t *desc, int prevc, int c) { return 0; }
+#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-01 01:25:08 +0000