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mpv/libvo/sub.c

258 lines
6.7 KiB
C
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#include "sub.h"
//static int vo_font_loaded=-1;
font_desc_t* vo_font=NULL;
unsigned char* vo_osd_text="00:00:00";
int sub_unicode=0;
int sub_utf8=0;
inline static void vo_draw_text_osd(int dxs,int dys,void (*draw_alpha)(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride)){
unsigned char *cp=vo_osd_text;
int c;
int font;
int y=10;
int x=20;
while (*cp){
c=*cp++;
if ((font=vo_font->font[c])>=0)
draw_alpha(x,y,
vo_font->width[c],
vo_font->pic_a[font]->h,
vo_font->pic_b[font]->bmp+vo_font->start[c],
vo_font->pic_a[font]->bmp+vo_font->start[c],
vo_font->pic_a[font]->w);
x+=vo_font->width[c]+vo_font->charspace;
}
}
int vo_osd_progbar_type=-1;
int vo_osd_progbar_value=100; // 0..255
inline static void vo_draw_text_progbar(int dxs,int dys,void (*draw_alpha)(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride)){
int i;
int y=(dys-vo_font->height)/2;
int c,font;
int delimw=vo_font->width[OSD_PB_START]
+vo_font->width[OSD_PB_END]
+vo_font->charspace;
int width=(2*dxs-3*delimw)/3;
int charw=vo_font->width[OSD_PB_0]+vo_font->charspace;
int elems=width/charw;
int x=(dxs-elems*charw-delimw)/2;
int mark=(vo_osd_progbar_value*(elems+1))>>8;
// printf("osd.progbar width=%d xpos=%d\n",width,x);
c=vo_osd_progbar_type;
if(vo_osd_progbar_type>0 && (font=vo_font->font[c])>=0) {
int xp=x-vo_font->width[c]-vo_font->spacewidth;
draw_alpha((xp<0?0:xp),y,
vo_font->width[c],
vo_font->pic_a[font]->h,
vo_font->pic_b[font]->bmp+vo_font->start[c],
vo_font->pic_a[font]->bmp+vo_font->start[c],
vo_font->pic_a[font]->w);
}
c=OSD_PB_START;
if ((font=vo_font->font[c])>=0)
draw_alpha(x,y,
vo_font->width[c],
vo_font->pic_a[font]->h,
vo_font->pic_b[font]->bmp+vo_font->start[c],
vo_font->pic_a[font]->bmp+vo_font->start[c],
vo_font->pic_a[font]->w);
x+=vo_font->width[c]+vo_font->charspace;
c=OSD_PB_0;
if ((font=vo_font->font[c])>=0)
for (i=mark;i--;){
draw_alpha(x,y,
vo_font->width[c],
vo_font->pic_a[font]->h,
vo_font->pic_b[font]->bmp+vo_font->start[c],
vo_font->pic_a[font]->bmp+vo_font->start[c],
vo_font->pic_a[font]->w);
x+=charw;
}
c=OSD_PB_1;
if ((font=vo_font->font[c])>=0)
for (i=elems-mark;i--;){
draw_alpha(x,y,
vo_font->width[c],
vo_font->pic_a[font]->h,
vo_font->pic_b[font]->bmp+vo_font->start[c],
vo_font->pic_a[font]->bmp+vo_font->start[c],
vo_font->pic_a[font]->w);
x+=charw;
}
c=OSD_PB_END;
if ((font=vo_font->font[c])>=0)
draw_alpha(x,y,
vo_font->width[c],
vo_font->pic_a[font]->h,
vo_font->pic_b[font]->bmp+vo_font->start[c],
vo_font->pic_a[font]->bmp+vo_font->start[c],
vo_font->pic_a[font]->w);
// x+=vo_font->width[c]+vo_font->charspace;
// vo_osd_progbar_value=(vo_osd_progbar_value+1)&0xFF;
}
subtitle* vo_sub=NULL;
#define MAX_UCS 1600
#define MAX_UCSLINES 16
inline static void vo_draw_text_sub(int dxs,int dys,void (*draw_alpha)(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride)){
static int utbl[MAX_UCS+1];
static int xtbl[MAX_UCSLINES];
static int lines;
static subtitle *memsub=NULL;
static int memy;
static int memdxs;
static int memdys;
unsigned char *t;
int i;
int j;
int k;
int l;
int x;
int y;
int c;
int len;
int line;
int font;
int lastStripPosition;
int xsize;
int lastxsize;
int lastk;
if ((memsub!=vo_sub)||(memdxs!=dxs)||(memdys!=dys)){
memsub=vo_sub;
memdxs=dxs;
memdys=dys;
memy=dys;
// too long lines divide into smaller ones
i=k=lines=y=0; l=vo_sub->lines;
while (l--){
t=vo_sub->text[i++];
len=strlen(t)-1;
xsize=lastxsize=-vo_font->charspace;
lastStripPosition=-1;
for (j=0;j<=len;j++){
if ((c=t[j])>=0x80){
if (sub_unicode)
c = (c<<8) + t[++j];
else
if (sub_utf8){
if ((c & 0xe0) == 0xc0) /* 2 bytes U+00080..U+0007FF*/
c = (c & 0x1f)<<6 | (t[++j] & 0x3f);
else if((c & 0xf0) == 0xe0)/* 3 bytes U+00800..U+00FFFF*/
c = ((c & 0x0f)<<6 |
(t[++j] & 0x3f))<<6 | (t[++j] & 0x3f);
}
}
if (k==MAX_UCS){
utbl[k]=l=0;
break;
} else
utbl[k++]=c;
if (c==' '){
lastk=k;
lastStripPosition=j;
lastxsize=xsize;
} else if (!l && ((font=vo_font->font[c])>=0)){
if (vo_font->pic_a[font]->h > y)
y=vo_font->pic_a[font]->h;
}
xsize+=vo_font->width[c]+vo_font->charspace;
if (dxs<xsize && lastStripPosition>0){
j=lastStripPosition;
k=lastk;
y=vo_font->height;
} else if (j==len){
lastxsize=xsize;
} else
continue;
utbl[k++]=0;
xtbl[lines++]=(dxs-lastxsize)/2;
if (lines==MAX_UCSLINES||k>MAX_UCS){
l=0;
break;
} else if(l || j<len){ // not last line or there is no eol
y=0;
xsize=lastxsize=-vo_font->charspace;
memy -=vo_font->height;
} else
memy-=y; // according to max of vo_font->pic_a[font]->h
} // in last line
}
}
y = memy;
k=i=0; l=lines;
while (l--){
if (y>=0){
x= xtbl[i++];
while ((c=utbl[k++])){
if (x>=0 && x+vo_font->width[c]<=dxs)
if ((font=vo_font->font[c])>=0)
draw_alpha(x,y,
vo_font->width[c],
vo_font->pic_a[font]->h,
vo_font->pic_b[font]->bmp+vo_font->start[c],
vo_font->pic_a[font]->bmp+vo_font->start[c],
vo_font->pic_a[font]->w);
x+=vo_font->width[c]+vo_font->charspace;
}
} else {
while (utbl[k++]) ; // skip lines with negative y value
i++; // seldom case but who knows ;-)
}
y+=vo_font->height;
}
}
static int draw_alpha_init_flag=0;
extern void vo_draw_alpha_init();
void vo_draw_text(int dxs,int dys,void (*draw_alpha)(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride)){
if(!vo_font) return; // no font
if(!draw_alpha_init_flag){
draw_alpha_init_flag=1;
vo_draw_alpha_init();
}
if(vo_osd_text){
vo_draw_text_osd(dxs,dys,draw_alpha);
}
if(vo_sub){
vo_draw_text_sub(dxs,dys,draw_alpha);
}
if(vo_osd_progbar_type>=0){
vo_draw_text_progbar(dxs,dys,draw_alpha);
}
}
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