mirror of
https://github.com/mpv-player/mpv
synced 2024-12-15 19:35:49 +00:00
0a33aed66e
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@12794 b3059339-0415-0410-9bf9-f77b7e298cf2
329 lines
8.3 KiB
C
329 lines
8.3 KiB
C
#include "config.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include "font_load.h"
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extern char *get_path ( char * );
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raw_file* load_raw(char *name,int verbose){
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int bpp;
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raw_file* raw=malloc(sizeof(raw_file));
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unsigned char head[32];
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FILE *f=fopen(name,"rb");
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if(!f) return NULL; // can't open
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if(fread(head,32,1,f)<1) return NULL; // too small
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if(memcmp(head,"mhwanh",6)) return NULL; // not raw file
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raw->w=head[8]*256+head[9];
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raw->h=head[10]*256+head[11];
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raw->c=head[12]*256+head[13];
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if(raw->w == 0) // 2 bytes were not enough for the width... read 4 bytes from the end of the header
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raw->w = ((head[28]*0x100 + head[29])*0x100 + head[30])*0x100 + head[31];
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if(raw->c>256) return NULL; // too many colors!?
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if(verbose) printf("RAW: %s %d x %d, %d colors\n",name,raw->w,raw->h,raw->c);
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if(raw->c){
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raw->pal=malloc(raw->c*3);
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fread(raw->pal,3,raw->c,f);
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bpp=1;
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} else {
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raw->pal=NULL;
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bpp=3;
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}
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raw->bmp=malloc(raw->h*raw->w*bpp);
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fread(raw->bmp,raw->h*raw->w*bpp,1,f);
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fclose(f);
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return raw;
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}
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extern int sub_unicode;
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font_desc_t* read_font_desc(char* fname,float factor,int verbose){
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unsigned char sor[1024];
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unsigned char sor2[1024];
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font_desc_t *desc;
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FILE *f;
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char *dn;
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struct stat fstate;
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char section[64];
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int i,j;
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int chardb=0;
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int fontdb=-1;
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int version=0;
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int first=1;
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desc=malloc(sizeof(font_desc_t));if(!desc) return NULL;
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memset(desc,0,sizeof(font_desc_t));
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f=fopen(fname,"rt");if(!f){ printf("font: can't open file: %s\n",fname); return NULL;}
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i = strlen (fname) - 9;
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if ((dn = malloc(i+1))){
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strncpy (dn, fname, i);
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dn[i]='\0';
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}
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desc->fpath = dn; // search in the same dir as fonts.desc
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// desc->fpath=get_path("font/");
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// if (stat(desc->fpath, &fstate)!=0) desc->fpath=DATADIR"/font";
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// set up some defaults, and erase table
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desc->charspace=2;
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desc->spacewidth=12;
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desc->height=0;
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for(i=0;i<65536;i++) desc->start[i]=desc->width[i]=desc->font[i]=-1;
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section[0]=0;
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while(fgets(sor,1020,f)){
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unsigned char* p[8];
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int pdb=0;
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unsigned char *s=sor;
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unsigned char *d=sor2;
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int ec=' ';
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int id=0;
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sor[1020]=0;
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/* skip files that look like: TTF (0x00, 0x01), PFM (0x00, 0x01), PFB
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* (0x80, 0x01), PCF (0x01, 0x66), fon ("MZ"), gzipped (0x1f, 0x8b) */
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if (first) {
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if (!sor[0] || sor[1] == 1 || (sor[0] == 'M' && sor[1] == 'Z') || (sor[0] == 0x1f && sor[1] == 0x8b) || (sor[0] == 1 && sor[1] == 0x66)) {
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printf("%s doesn't look like a font description, ignoring\n", fname);
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fclose(f);
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free(desc);
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free(dn);
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return NULL;
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}
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first = 0;
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}
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p[0]=d;++pdb;
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while(1){
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int c=*s++;
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if(c==0 || c==13 || c==10) break;
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if(!id){
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if(c==39 || c==34){ id=c;continue;} // idezojel
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if(c==';' || c=='#') break;
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if(c==9) c=' ';
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if(c==' '){
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if(ec==' ') continue;
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*d=0; ++d;
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p[pdb]=d;++pdb;
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if(pdb>=8) break;
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continue;
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}
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} else {
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if(id==c){ id=0;continue;} // idezojel
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}
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*d=c;d++;
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ec=c;
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}
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if(d==sor2) continue; // skip empty lines
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*d=0;
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// printf("params=%d sor=%s\n",pdb,sor);
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// for(i=0;i<pdb;i++) printf(" param %d = '%s'\n",i,p[i]);
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if(pdb==1 && p[0][0]=='['){
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int len=strlen(p[0]);
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if(len && len<63 && p[0][len-1]==']'){
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strcpy(section,p[0]);
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if(verbose) printf("font: Reading section: %s\n",section);
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if(strcmp(section,"[files]")==0){
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++fontdb;
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if(fontdb>=16){ printf("font: Too many bitmaps defined!\n");return NULL;}
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}
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continue;
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}
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}
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if(strcmp(section,"[fpath]")==0){
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if(pdb==1){
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if (desc->fpath)
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free (desc->fpath); // release previously allocated memory
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desc->fpath=strdup(p[0]);
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continue;
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}
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} else
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if(strcmp(section,"[files]")==0){
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char *default_dir=MPLAYER_DATADIR "/font";
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if(pdb==2 && strcmp(p[0],"alpha")==0){
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char *cp;
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if (!(cp=malloc(strlen(desc->fpath)+strlen(p[1])+2))) return NULL;
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snprintf(cp,strlen(desc->fpath)+strlen(p[1])+2,"%s/%s",
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desc->fpath,p[1]);
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if(!((desc->pic_a[fontdb]=load_raw(cp,verbose)))){
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free(cp);
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if (!(cp=malloc(strlen(default_dir)+strlen(p[1])+2)))
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return NULL;
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snprintf(cp,strlen(default_dir)+strlen(p[1])+2,"%s/%s",
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default_dir,p[1]);
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if (!((desc->pic_a[fontdb]=load_raw(cp,verbose)))){
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printf("Can't load font bitmap: %s\n",p[1]);
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free(cp);
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return NULL;
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}
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}
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free(cp);
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continue;
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}
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if(pdb==2 && strcmp(p[0],"bitmap")==0){
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char *cp;
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if (!(cp=malloc(strlen(desc->fpath)+strlen(p[1])+2))) return NULL;
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snprintf(cp,strlen(desc->fpath)+strlen(p[1])+2,"%s/%s",
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desc->fpath,p[1]);
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if(!((desc->pic_b[fontdb]=load_raw(cp,verbose)))){
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free(cp);
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if (!(cp=malloc(strlen(default_dir)+strlen(p[1])+2)))
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return NULL;
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snprintf(cp,strlen(default_dir)+strlen(p[1])+2,"%s/%s",
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default_dir,p[1]);
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if (!((desc->pic_b[fontdb]=load_raw(cp,verbose)))){
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printf("Can't load font bitmap: %s\n",p[1]);
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free(cp);
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return NULL;
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}
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}
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free(cp);
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continue;
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}
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} else
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if(strcmp(section,"[info]")==0){
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if(pdb==2 && strcmp(p[0],"name")==0){
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desc->name=strdup(p[1]);
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continue;
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}
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if(pdb==2 && strcmp(p[0],"descversion")==0){
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version=atoi(p[1]);
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continue;
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}
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if(pdb==2 && strcmp(p[0],"spacewidth")==0){
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desc->spacewidth=atoi(p[1]);
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continue;
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}
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if(pdb==2 && strcmp(p[0],"charspace")==0){
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desc->charspace=atoi(p[1]);
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continue;
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}
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if(pdb==2 && strcmp(p[0],"height")==0){
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desc->height=atoi(p[1]);
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continue;
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}
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} else
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if(strcmp(section,"[characters]")==0){
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if(pdb==3){
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int chr=p[0][0];
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int start=atoi(p[1]);
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int end=atoi(p[2]);
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if(sub_unicode && (chr>=0x80)) chr=(chr<<8)+p[0][1];
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else if(strlen(p[0])!=1) chr=strtol(p[0],NULL,0);
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if(end<start) {
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printf("error in font desc: end<start for char '%c'\n",chr);
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} else {
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desc->start[chr]=start;
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desc->width[chr]=end-start+1;
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desc->font[chr]=fontdb;
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// printf("char %d '%c' start=%d width=%d\n",chr,chr,desc->start[chr],desc->width[chr]);
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++chardb;
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}
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continue;
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}
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}
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printf("Syntax error in font desc: %s\n",sor);
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free(desc);
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fclose(f);
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return NULL;
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}
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fclose(f);
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if (first == 1) {
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printf("%s is empty or a directory, ignoring\n", fname);
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free(desc);
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return NULL;
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}
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//printf("font: pos of U = %d\n",desc->start[218]);
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for(i=0;i<=fontdb;i++){
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if(!desc->pic_a[i] || !desc->pic_b[i]){
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printf("font: Missing bitmap(s) for sub-font #%d\n",i);
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return NULL;
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}
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//if(factor!=1.0f)
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{
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// re-sample alpha
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int f=factor*256.0f;
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int size=desc->pic_a[i]->w*desc->pic_a[i]->h;
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int j;
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if(verbose) printf("font: resampling alpha by factor %5.3f (%d) ",factor,f);fflush(stdout);
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for(j=0;j<size;j++){
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int x=desc->pic_a[i]->bmp[j]; // alpha
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int y=desc->pic_b[i]->bmp[j]; // bitmap
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#ifdef FAST_OSD
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x=(x<(255-f))?0:1;
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#else
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x=255-((x*f)>>8); // scale
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//if(x<0) x=0; else if(x>255) x=255;
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//x^=255; // invert
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if(x+y>255) x=255-y; // to avoid overflows
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//x=0;
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//x=((x*f*(255-y))>>16);
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//x=((x*f*(255-y))>>16)+y;
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//x=(x*f)>>8;if(x<y) x=y;
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if(x<1) x=1; else
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if(x>=252) x=0;
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#endif
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desc->pic_a[i]->bmp[j]=x;
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// desc->pic_b[i]->bmp[j]=0; // hack
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}
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if(verbose) printf("DONE!\n");
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}
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if(!desc->height) desc->height=desc->pic_a[i]->h;
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}
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j='_';if(desc->font[j]<0) j='?';
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for(i=0;i<65536;i++)
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if(desc->font[i]<0){
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desc->start[i]=desc->start[j];
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desc->width[i]=desc->width[j];
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desc->font[i]=desc->font[j];
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}
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desc->font[' ']=-1;
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desc->width[' ']=desc->spacewidth;
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printf("Font %s loaded successfully! (%d chars)\n",fname,chardb);
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return desc;
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}
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#if 0
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int main(){
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read_font_desc("high_arpi.desc",1);
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}
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#endif
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