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draw speedups, cut text if too many lines

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@1592 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
atlka 2001-08-20 09:14:28 +00:00
parent 81f87d5fbf
commit b160e4d958
1 changed files with 51 additions and 56 deletions
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107
libvo/sub.c
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@ -112,6 +112,7 @@ 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];
@ -120,37 +121,31 @@ inline static void vo_draw_text_sub(int dxs,int dys,void (*draw_alpha)(int x0,in
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 c,i,j,l,x,y,font;
int len;
int line;
int font;
int k,lastk;
int lastStripPosition;
int xsize;
int lastxsize;
int lastk;
int xsize,lastxsize;
int h,lasth;
if ((memsub!=vo_sub)||(memdxs!=dxs)||(memdys!=dys)){
memsub=vo_sub;
memdxs=dxs;
memdys=dys;
memy=dys;
memdys=memy=dys;
// too long lines divide into smaller ones
i=k=lines=y=0; l=vo_sub->lines;
i=k=lines=lasth=0;
h=vo_font->height;
xsize=-vo_font->charspace;
lastStripPosition=-1;
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){
@ -166,50 +161,56 @@ inline static void vo_draw_text_sub(int dxs,int dys,void (*draw_alpha)(int x0,in
}
}
if (k==MAX_UCS){
utbl[k]=l=0;
break;
} else
utbl[k++]=c;
utbl[k]=l=0; break;
}
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;
} else if ((font=vo_font->font[c])>=0){
if (vo_font->pic_a[font]->h > h){
h=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;
if (dxs<xsize){
if (lastStripPosition>0){
j=lastStripPosition;
xsize=lastxsize;
k=lastk;
} else {
xsize -=vo_font->width[c]+vo_font->charspace; // go back
k--; // cut line here
while (t[j] && t[j]!=' ') j++; // jump to the nearest space
}
} else if (j<len)
continue;
if (h>memy){ // out of the screen so end parsing
memy +=vo_font->height-lasth; // correct y position
l=0; break;
}
utbl[k++]=0;
xtbl[lines++]=(dxs-lastxsize)/2;
xtbl[lines++]=(dxs-xsize)/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
l=0; break;
} else if(l || j<len){ // not last line or not last char
lastStripPosition=-1;
xsize=-vo_font->charspace;
lasth=h;
h=vo_font->height;
}
memy -=h; // according to max of vo_font->pic_a[font]->h
}
}
}
y = memy;
k=i=0; l=lines;
i=j=0; l=lines;
while (l--){
if (y>=0){
x= xtbl[i++];
while ((c=utbl[k++])){
if (x>=0 && x+vo_font->width[c]<=dxs)
while ((c=utbl[j++])){
if ((font=vo_font->font[c])>=0)
draw_alpha(x,y,
vo_font->width[c],
@ -217,18 +218,12 @@ inline static void vo_draw_text_sub(int dxs,int dys,void (*draw_alpha)(int x0,in
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;
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;
y+=vo_font->height;
}
}
static int draw_alpha_init_flag=0;
extern void vo_draw_alpha_init();