github/mpv
1
Fork 0
mirror of https://github.com/mpv-player/mpv synced 2025-01-20 21:07:29 +01:00
Code Releases Activity
a232f564d3
mpv/libvo/sub.c
Uoti Urpala a232f564d3 Create a context struct for OSD state 
This commit creates the struct and passes it to some functions that
needs to access OSD state but does not yet move much data from globals
to it.

vf_expand accesses the OSD state for rendering purposes outside of the
normal OSD draw time. The way this currently works is suboptimal, but
I did not attempt to clean it up now. To keep things working the same
way vf_expand needs to know the address of the state object to be able
to access the data even in the functions that should normally not need
it. For that purpose this commit adds a VFCTRL to tell vf_expand the
address of the object.
2008-06-24 01:53:58 +03:00

1308 lines
36 KiB
C
Raw Blame History

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "config.h"
#ifdef HAVE_MALLOC_H
#include <malloc.h>
#endif
#ifdef USE_DVDNAV
#include "stream/stream.h"
#include "stream/stream_dvdnav.h"
#define OSD_NAV_BOX_ALPHA 0x7f
#endif
#ifdef HAVE_TV_TELETEXT
#include "stream/tv.h"
#include "osdep/timer.h"
#endif
#include "talloc.h"
#include "mplayer.h"
#include "mp_msg.h"
#include "help_mp.h"
#include "video_out.h"
#include "font_load.h"
#include "sub.h"
#include "spudec.h"
#include "libavutil/common.h"
#define NEW_SPLITTING
// Structures needed for the new splitting algorithm.
// osd_text_t contains the single subtitle word.
// osd_text_p is used to mark the lines of subtitles
struct osd_text_t {
int osd_kerning, //kerning with the previous word
osd_length, //orizontal length inside the bbox
text_length, //number of characters
*text; //characters
struct osd_text_t *prev,
*next;
};
struct osd_text_p {
int value;
struct osd_text_t *ott;
struct osd_text_p *prev,
*next;
};
//^
char * const sub_osd_names[]={
MSGTR_VO_SUB_Seekbar,
MSGTR_VO_SUB_Play,
MSGTR_VO_SUB_Pause,
MSGTR_VO_SUB_Stop,
MSGTR_VO_SUB_Rewind,
MSGTR_VO_SUB_Forward,
MSGTR_VO_SUB_Clock,
MSGTR_VO_SUB_Contrast,
MSGTR_VO_SUB_Saturation,
MSGTR_VO_SUB_Volume,
MSGTR_VO_SUB_Brightness,
MSGTR_VO_SUB_Hue,
MSGTR_VO_SUB_Balance
};
char * const sub_osd_names_short[] ={ "", "|>", "||", "[]", "<<" , ">>", "", "", "", "", "", "", "" };
//static int vo_font_loaded=-1;
font_desc_t* vo_font=NULL;
font_desc_t* sub_font=NULL;
#ifdef HAVE_TV_TELETEXT
void* vo_osd_teletext_page=NULL;
int vo_osd_teletext_half = 0;
int vo_osd_teletext_mode=0;
int vo_osd_teletext_format=0;
int vo_osd_teletext_scale=0;
#endif
int sub_unicode=0;
int sub_utf8=0;
int sub_pos=100;
int sub_width_p=100;
int sub_alignment=2; /* 0=top, 1=center, 2=bottom */
int sub_visibility=1;
int sub_bg_color=0; /* subtitles background color */
int sub_bg_alpha=0;
int sub_justify=0;
#ifdef USE_DVDNAV
static nav_highlight_t nav_hl;
#endif
// return the real height of a char:
static inline int get_height(int c,int h){
int font;
if ((font=vo_font->font[c])>=0)
if(h<vo_font->pic_a[font]->h) h=vo_font->pic_a[font]->h;
return h;
}
// renders char to a big per-object buffer where alpha and bitmap are separated
static void draw_alpha_buf(mp_osd_obj_t* obj, int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride)
{
int dststride = obj->stride;
int dstskip = obj->stride-w;
int srcskip = stride-w;
int i, j;
unsigned char *b = obj->bitmap_buffer + (y0-obj->bbox.y1)*dststride + (x0-obj->bbox.x1);
unsigned char *a = obj->alpha_buffer + (y0-obj->bbox.y1)*dststride + (x0-obj->bbox.x1);
unsigned char *bs = src;
unsigned char *as = srca;
if (x0 < obj->bbox.x1 || x0+w > obj->bbox.x2 || y0 < obj->bbox.y1 || y0+h > obj->bbox.y2) {
fprintf(stderr, "osd text out of range: bbox [%d %d %d %d], txt [%d %d %d %d]\n",
obj->bbox.x1, obj->bbox.x2, obj->bbox.y1, obj->bbox.y2,
x0, x0+w, y0, y0+h);
return;
}
for (i = 0; i < h; i++) {
for (j = 0; j < w; j++, b++, a++, bs++, as++) {
if (*b < *bs) *b = *bs;
if (*as) {
if (*a == 0 || *a > *as) *a = *as;
}
}
b+= dstskip;
a+= dstskip;
bs+= srcskip;
as+= srcskip;
}
}
// allocates/enlarges the alpha/bitmap buffer
static void alloc_buf(mp_osd_obj_t* obj)
{
int len;
if (obj->bbox.x2 < obj->bbox.x1) obj->bbox.x2 = obj->bbox.x1;
if (obj->bbox.y2 < obj->bbox.y1) obj->bbox.y2 = obj->bbox.y1;
obj->stride = ((obj->bbox.x2-obj->bbox.x1)+7)&(~7);
len = obj->stride*(obj->bbox.y2-obj->bbox.y1);
if (obj->allocated<len) {
obj->allocated = len;
free(obj->bitmap_buffer);
free(obj->alpha_buffer);
obj->bitmap_buffer = (unsigned char *)memalign(16, len);
obj->alpha_buffer = (unsigned char *)memalign(16, len);
}
memset(obj->bitmap_buffer, sub_bg_color, len);
memset(obj->alpha_buffer, sub_bg_alpha, len);
}
// renders the buffer
inline static void vo_draw_text_from_buffer(mp_osd_obj_t* obj,void (*draw_alpha)(void *ctx, int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride), void *ctx)
{
if (obj->allocated > 0) {
draw_alpha(ctx,
obj->bbox.x1,obj->bbox.y1,
obj->bbox.x2-obj->bbox.x1,
obj->bbox.y2-obj->bbox.y1,
obj->bitmap_buffer,
obj->alpha_buffer,
obj->stride);
}
}
unsigned utf8_get_char(const char **str) {
const uint8_t *strp = (const uint8_t *)*str;
unsigned c;
GET_UTF8(c, *strp++, goto no_utf8;);
*str = (const char *)strp;
return c;
no_utf8:
strp = (const uint8_t *)*str;
c = *strp++;
*str = (const char *)strp;
return c;
}
inline static void vo_update_text_osd(struct osd_state *osd, mp_osd_obj_t* obj,
int dxs, int dys)
{
const char *cp = osd->osd_text;
int x=20;
int h=0;
int font;
obj->bbox.x1=obj->x=x;
obj->bbox.y1=obj->y=10;
while (*cp){
uint16_t c=utf8_get_char(&cp);
render_one_glyph(vo_font, c);
x+=vo_font->width[c]+vo_font->charspace;
h=get_height(c,h);
}
obj->bbox.x2=x-vo_font->charspace;
obj->bbox.y2=obj->bbox.y1+h;
obj->flags|=OSDFLAG_BBOX;
alloc_buf(obj);
cp = osd->osd_text;
x = obj->x;
while (*cp){
uint16_t c=utf8_get_char(&cp);
if ((font=vo_font->font[c])>=0)
draw_alpha_buf(obj,x,obj->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;
}
}
#ifdef USE_DVDNAV
void osd_set_nav_box (uint16_t sx, uint16_t sy, uint16_t ex, uint16_t ey) {
nav_hl.sx = sx;
nav_hl.sy = sy;
nav_hl.ex = ex;
nav_hl.ey = ey;
}
inline static void vo_update_nav (mp_osd_obj_t *obj, int dxs, int dys) {
int len;
obj->bbox.x1 = obj->x = nav_hl.sx;
obj->bbox.y1 = obj->y = nav_hl.sy;
obj->bbox.x2 = nav_hl.ex;
obj->bbox.y2 = nav_hl.ey;
alloc_buf (obj);
len = obj->stride * (obj->bbox.y2 - obj->bbox.y1);
memset (obj->bitmap_buffer, OSD_NAV_BOX_ALPHA, len);
memset (obj->alpha_buffer, OSD_NAV_BOX_ALPHA, len);
obj->flags |= OSDFLAG_BBOX | OSDFLAG_CHANGED;
if (obj->bbox.y2 > obj->bbox.y1 && obj->bbox.x2 > obj->bbox.x1)
obj->flags |= OSDFLAG_VISIBLE;
}
#endif
#ifdef HAVE_TV_TELETEXT
// renders char to a big per-object buffer where alpha and bitmap are separated
static void tt_draw_alpha_buf(mp_osd_obj_t* obj, int x0,int y0, int w,int h, unsigned char* src, int stride,int fg,int bg,int alpha)
{
int dststride = obj->stride;
int dstskip = obj->stride-w;
int srcskip = stride-w;
int i, j;
unsigned char *b = obj->bitmap_buffer + (y0-obj->bbox.y1)*dststride + (x0-obj->bbox.x1);
unsigned char *a = obj->alpha_buffer + (y0-obj->bbox.y1)*dststride + (x0-obj->bbox.x1);
unsigned char *bs = src;
if (x0 < obj->bbox.x1 || x0+w > obj->bbox.x2 || y0 < obj->bbox.y1 || y0+h > obj->bbox.y2) {
mp_msg(MSGT_OSD,MSGL_ERR,"tt osd text out of range: bbox [%d %d %d %d], txt [%d %d %d %d]\n",
obj->bbox.x1, obj->bbox.x2, obj->bbox.y1, obj->bbox.y2,
x0, x0+w, y0, y0+h);
return;
}
for (i = 0; i < h; i++) {
for (j = 0; j < w; j++, b++, a++, bs++) {
*b=(fg-bg)*(*bs)/255+bg;
*a=alpha;
}
b+= dstskip;
a+= dstskip;
bs+= srcskip;
}
}
inline static void vo_update_text_teletext(mp_osd_obj_t *obj, int dxs, int dys)
{
int h=0,w=0,i,j,font,flashon;
int wm,hm;
int color;
int x,y,x0,y0;
int cols,rows;
int wm12;
int hm13;
int hm23;
int start_row,max_rows;
int b,ax[6],ay[6],aw[6],ah[6];
tt_char tc;
tt_char* tdp=vo_osd_teletext_page;
unsigned char colors[8]={1,85,150,226,70,105,179,254};
unsigned char* buf[9];
obj->flags|=OSDFLAG_CHANGED|OSDFLAG_VISIBLE;
if (!tdp || !vo_osd_teletext_mode) {
obj->flags&=~OSDFLAG_VISIBLE;
return;
}
flashon=(GetTimer()/1000000)%2;
switch(vo_osd_teletext_half){
case TT_ZOOM_TOP_HALF:
start_row=0;
max_rows=VBI_ROWS/2;
break;
case TT_ZOOM_BOTTOM_HALF:
start_row=VBI_ROWS/2;
max_rows=VBI_ROWS/2;
break;
default:
start_row=0;
max_rows=VBI_ROWS;
break;
}
wm=0;
for(i=start_row;i<max_rows;i++){
for(j=0;j<VBI_COLUMNS;j++){
tc=tdp[i*VBI_COLUMNS+j];
if(!tc.ctl && !tc.gfx)
{
render_one_glyph(vo_font, tc.unicode);
if (wm<vo_font->width[tc.unicode])
wm=vo_font->width[tc.unicode];
}
}
}
hm=vo_font->height+1;
wm=dxs*hm*max_rows/(dys*VBI_COLUMNS);
//very simple teletext font auto scaling
if(!vo_osd_teletext_scale && hm*(max_rows+1)>dys){
text_font_scale_factor*=1.0*(dys)/((max_rows+1)*hm);
force_load_font=1;
vo_osd_teletext_scale=text_font_scale_factor;
obj->flags&=~OSDFLAG_VISIBLE;
return;
}
cols=dxs/wm;
rows=dys/hm;
if(cols>VBI_COLUMNS)
cols=VBI_COLUMNS;
if(rows>max_rows)
rows=max_rows;
w=cols*wm-vo_font->charspace;
h=rows*hm-vo_font->charspace;
if(w<dxs)
x0=(dxs-w)/2;
else
x0=0;
if(h<dys)
y0=(dys-h)/2;
else
y0=0;
wm12=wm>>1;
hm13=(hm+1)/3;
hm23=hm13<<1;
for(i=0;i<6;i+=2){
ax[i+0]=0;
aw[i+0]=wm12;
ax[i+1]=wm12;
aw[i+1]=wm-wm12;
}
for(i=0;i<2;i++){
ay[i+0]=0;
ah[i+0]=hm13;
ay[i+2]=hm13;
ah[i+2]=hm-hm23;
ay[i+4]=hm-hm13;
ah[i+4]=hm13;
}
obj->x = 0;
obj->y = 0;
obj->bbox.x1 = x0;
obj->bbox.y1 = y0;
obj->bbox.x2 = x0+w;
obj->bbox.y2 = y0+h;
obj->flags |= OSDFLAG_BBOX;
alloc_buf(obj);
for(i=0;i<9;i++)
buf[i]=malloc(wm*hm);
//alpha
if(vo_osd_teletext_format==TT_FORMAT_OPAQUE ||vo_osd_teletext_format==TT_FORMAT_OPAQUE_INV)
color=1;
else
color=200;
memset(buf[8],color,wm*hm);
//colors
if(vo_osd_teletext_format==TT_FORMAT_OPAQUE ||vo_osd_teletext_format==TT_FORMAT_TRANSPARENT){
for(i=0;i<8;i++){
memset(buf[i],(unsigned char)(1.0*(255-color)*colors[i]/255),wm*hm);
}
}else{
for(i=0;i<8;i++)
memset(buf[i],(unsigned char)(1.0*(255-color)*colors[7-i]/255),wm*hm);
}
y=y0;
for(i=0;i<rows;i++){
x=x0;
for(j=0;j<cols;j++){
tc=tdp[(i+start_row)*VBI_COLUMNS+j];
if (tc.hidden) { x+=wm; continue;}
if(!tc.gfx || (tc.flh && !flashon)){
/* Rendering one text character */
draw_alpha_buf(obj,x,y,wm,hm,buf[tc.bg],buf[8],wm);
if(tc.unicode!=0x20 && tc.unicode!=0x00 && !tc.ctl &&
(!tc.flh || flashon) &&
(font=vo_font->font[tc.unicode])>=0 && y+hm<dys){
tt_draw_alpha_buf(obj,x,y,vo_font->width[tc.unicode],vo_font->height,
vo_font->pic_b[font]->bmp+vo_font->start[tc.unicode]-vo_font->charspace*vo_font->pic_a[font]->w,
vo_font->pic_b[font]->w,
buf[tc.fg][0],buf[tc.bg][0],buf[8][0]);
}
}else{
/*
Rendering one graphics character
TODO: support for separated graphics symbols (where six rectangles does not touch each other)
+--+ +--+ 87654321
|01| |12| --------
|10| <= |34| <= 00100110 <= 0x26
|01| |56|
+--+ +--+
(0:wm/2) (wm/2:wm-wm/2)
********** *********** (0:hm/3)
*** **** **** ****
*** 1 **** **** 2 ****
*** **** **** ****
********** ***********
********** ***********
********** *********** (hm/3:hm-2*hm/3)
********** ***********
*** **** **** ****
*** 3 **** **** 4 ****
*** **** **** ****
********** ***********
********** ***********
********** ***********
********** *********** (hm-hm/3:hm/3)
*** **** **** ****
*** 5 **** **** 6 ****
*** **** **** ****
********** ***********
********** ***********
*/
if(tc.gfx>1){ //separated gfx
for(b=0;b<6;b++){
color=(tc.unicode>>b)&1?tc.fg:tc.bg;
draw_alpha_buf(obj,x+ax[b]+1,y+ay[b]+1,aw[b]-2,ah[b]-2,buf[color],buf[8],wm);
}
//separated gfx (background borders)
//vertical
draw_alpha_buf(obj,x ,y,1,hm,buf[tc.bg],buf[8],wm);
draw_alpha_buf(obj,x+ax[1]-1,y,2,hm,buf[tc.bg],buf[8],wm);
draw_alpha_buf(obj,x+ax[1]+aw[1]-1,y,wm-ax[1]-aw[1]+1,hm,buf[tc.bg],buf[8],wm);
//horizontal
draw_alpha_buf(obj,x,y ,wm,1,buf[tc.bg],buf[8],wm);
draw_alpha_buf(obj,x,y+ay[0]+ah[0]-1,wm,2,buf[tc.bg],buf[8],wm);
draw_alpha_buf(obj,x,y+ay[2]+ah[2]-1,wm,2,buf[tc.bg],buf[8],wm);
draw_alpha_buf(obj,x,y+ay[4]+ah[4]-1,wm,hm-ay[4]-ah[4]+1,buf[tc.bg],buf[8],wm);
}else{
for(b=0;b<6;b++){
color=(tc.unicode>>b)&1?tc.fg:tc.bg;
draw_alpha_buf(obj,x+ax[b],y+ay[b],aw[b],ah[b],buf[color],buf[8],wm);
}
}
}
x+=wm;
}
y+=hm;
}
for(i=0;i<9;i++)
free(buf[i]);
}
#endif
int vo_osd_progbar_type=-1;
int vo_osd_progbar_value=100; // 0..256
// if we have n=256 bars then OSD progbar looks like below
//
// 0 1 2 3 ... 256 <= vo_osd_progbar_value
// | | | | |
// [ === === === ... === ]
//
// the above schema is rescalled to n=elems bars
inline static void vo_update_text_progbar(mp_osd_obj_t* obj,int dxs,int dys){
obj->flags|=OSDFLAG_CHANGED|OSDFLAG_VISIBLE;
if(vo_osd_progbar_type<0 || !vo_font){
obj->flags&=~OSDFLAG_VISIBLE;
return;
}
render_one_glyph(vo_font, OSD_PB_START);
render_one_glyph(vo_font, OSD_PB_END);
render_one_glyph(vo_font, OSD_PB_0);
render_one_glyph(vo_font, OSD_PB_1);
render_one_glyph(vo_font, vo_osd_progbar_type);
// calculate bbox corners:
{ int h=0;
int y=(dys-vo_font->height)/2;
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 delta = 0;
h=get_height(OSD_PB_START,h);
h=get_height(OSD_PB_END,h);
h=get_height(OSD_PB_0,h);
h=get_height(OSD_PB_1,h);
if (vo_osd_progbar_type>0 && vo_font->font[vo_osd_progbar_type]>=0){
delta = vo_font->width[vo_osd_progbar_type]+vo_font->spacewidth;
delta = (x-delta > 0) ? delta : x;
h=get_height(vo_osd_progbar_type,h);
}
obj->bbox.x1=obj->x=x;
obj->bbox.y1=obj->y=y;
obj->bbox.x2=x+width+delimw;
obj->bbox.y2=y+h; //vo_font->height;
obj->flags|=OSDFLAG_BBOX;
obj->params.progbar.elems=elems;
obj->bbox.x1-=delta; // space for an icon
}
alloc_buf(obj);
{
int minw = vo_font->width[OSD_PB_START]+vo_font->width[OSD_PB_END]+vo_font->width[OSD_PB_0];
if (vo_osd_progbar_type>0 && vo_font->font[vo_osd_progbar_type]>=0){
minw += vo_font->width[vo_osd_progbar_type]+vo_font->charspace+vo_font->spacewidth;
}
if (obj->bbox.x2 - obj->bbox.x1 < minw) return; // space too small, don't render anything
}
// render it:
{ unsigned char *s;
unsigned char *sa;
int i,w,h,st,mark;
int x=obj->x;
int y=obj->y;
int c,font;
int charw=vo_font->width[OSD_PB_0]+vo_font->charspace;
int elems=obj->params.progbar.elems;
if (vo_osd_progbar_value<=0)
mark=0;
else {
int ev=vo_osd_progbar_value*elems;
mark=ev>>8;
if (ev & 0xFF) mark++;
if (mark>elems) mark=elems;
}
// 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_buf(obj,(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_buf(obj,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){
w=vo_font->width[c];
h=vo_font->pic_a[font]->h;
s=vo_font->pic_b[font]->bmp+vo_font->start[c];
sa=vo_font->pic_a[font]->bmp+vo_font->start[c];
st=vo_font->pic_a[font]->w;
if ((i=mark)) do {
draw_alpha_buf(obj,x,y,w,h,s,sa,st);
x+=charw;
} while(--i);
}
c=OSD_PB_1;
if ((font=vo_font->font[c])>=0){
w=vo_font->width[c];
h=vo_font->pic_a[font]->h;
s =vo_font->pic_b[font]->bmp+vo_font->start[c];
sa=vo_font->pic_a[font]->bmp+vo_font->start[c];
st=vo_font->pic_a[font]->w;
if ((i=elems-mark)) do {
draw_alpha_buf(obj,x,y,w,h,s,sa,st);
x+=charw;
} while(--i);
}
c=OSD_PB_END;
if ((font=vo_font->font[c])>=0)
draw_alpha_buf(obj,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;
// 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))
inline static void vo_update_text_sub(mp_osd_obj_t* obj,int dxs,int dys){
unsigned char *t;
int c,i,j,l,x,y,font,prevc,counter;
int k;
int lastStripPosition;
int xsize;
int xmin=dxs,xmax=0;
int h,lasth;
int xtblc, utblc;
obj->flags|=OSDFLAG_CHANGED|OSDFLAG_VISIBLE;
if(!vo_sub || !sub_font || !sub_visibility || (sub_font->font[40]<0)){
obj->flags&=~OSDFLAG_VISIBLE;
return;
}
obj->bbox.y2=obj->y=dys;
obj->params.subtitle.lines=0;
// too long lines divide into a smaller ones
i=k=lasth=0;
h=sub_font->height;
lastStripPosition=-1;
l=vo_sub->lines;
{
struct osd_text_t *osl, *cp_ott, *tmp_ott, *tmp;
struct osd_text_p *otp_sub = NULL, *otp_sub_tmp, // these are used to store the whole sub text osd
*otp, *tmp_otp, *pmt; // these are used to manage sub text osd coming from a single sub line
int *char_seq, char_position, xlimit = dxs * sub_width_p / 100, counter;
while (l) {
xsize = -sub_font->charspace;
l--;
t=vo_sub->text[i++];
char_position = 0;
char_seq = calloc(strlen(t), sizeof(int));
prevc = -1;
otp = NULL;
osl = NULL;
x = 1;
// reading the subtitle words from vo_sub->text[]
while (*t) {
if (sub_utf8)
c = utf8_get_char(&t);
else if ((c = *t++) >= 0x80 && sub_unicode)
c = (c<<8) + *t++;
if (k==MAX_UCS){
t += strlen(t); // end here
mp_msg(MSGT_OSD,MSGL_WARN,"\nMAX_UCS exceeded!\n");
}
if (!c) c++; // avoid UCS 0
render_one_glyph(sub_font, c);
if (c == ' ') {
struct osd_text_t *tmp_ott = (struct osd_text_t *) calloc(1, sizeof(struct osd_text_t));
if (osl == NULL) {
osl = cp_ott = tmp_ott;
} else {
tmp_ott->prev = cp_ott;
cp_ott->next = tmp_ott;
tmp_ott->osd_kerning =
sub_font->charspace + sub_font->width[' '];
cp_ott = tmp_ott;
}
tmp_ott->osd_length = xsize;
tmp_ott->text_length = char_position;
tmp_ott->text = (int *) malloc(char_position * sizeof(int));
for (counter = 0; counter < char_position; ++counter)
tmp_ott->text[counter] = char_seq[counter];
char_position = 0;
xsize = 0;
prevc = c;
} else {
int delta_xsize = sub_font->width[c] + sub_font->charspace + kerning(sub_font, prevc, c);
if (xsize + delta_xsize <= dxs) {
if (!x) x = 1;
prevc = c;
char_seq[char_position++] = c;
xsize += delta_xsize;
if ((!suboverlap_enabled) && ((font = sub_font->font[c]) >= 0)) {
if (sub_font->pic_a[font]->h > h) {
h = sub_font->pic_a[font]->h;
}
}
} else {
if (x) {
mp_msg(MSGT_OSD, MSGL_WARN, "\nSubtitle word '%s' too long!\n", t);
x = 0;
}
}
}
}// for len (all words from subtitle line read)
// osl holds an ordered (as they appear in the lines) chain of the subtitle words
{
struct osd_text_t *tmp_ott = (struct osd_text_t *) calloc(1, sizeof(struct osd_text_t));
if (osl == NULL) {
osl = cp_ott = tmp_ott;
} else {
tmp_ott->prev = cp_ott;
cp_ott->next = tmp_ott;
tmp_ott->osd_kerning =
sub_font->charspace + sub_font->width[' '];
cp_ott = tmp_ott;
}
tmp_ott->osd_length = xsize;
tmp_ott->text_length = char_position;
tmp_ott->text = (int *) malloc(char_position * sizeof(int));
for (counter = 0; counter < char_position; ++counter)
tmp_ott->text[counter] = char_seq[counter];
char_position = 0;
xsize = -sub_font->charspace;
}
free(char_seq);
if (osl != NULL) {
int value = 0, exit = 0, minimum = 0;
// otp will contain the chain of the osd subtitle lines coming from the single vo_sub line.
otp = tmp_otp = (struct osd_text_p *) calloc(1, sizeof(struct osd_text_p));
tmp_otp->ott = osl;
for (tmp_ott = tmp_otp->ott; exit == 0; ) {
do {
value += tmp_ott->osd_kerning + tmp_ott->osd_length;
tmp_ott = tmp_ott->next;
} while ((tmp_ott != NULL) && (value + tmp_ott->osd_kerning + tmp_ott->osd_length <= xlimit));
if (tmp_ott != NULL) {
struct osd_text_p *tmp = (struct osd_text_p *) calloc(1, sizeof(struct osd_text_p));
tmp_otp->value = value;
tmp_otp->next = tmp;
tmp->prev = tmp_otp;
tmp_otp = tmp;
tmp_otp->ott = tmp_ott;
value = -2 * sub_font->charspace - sub_font->width[' '];
} else {
tmp_otp->value = value;
exit = 1;
}
}
#ifdef NEW_SPLITTING
// minimum holds the 'sum of the differences in length among the lines',
// a measure of the evenness of the lengths of the lines
for (tmp_otp = otp; tmp_otp->next != NULL; tmp_otp = tmp_otp->next) {
pmt = tmp_otp->next;
while (pmt != NULL) {
minimum += abs(tmp_otp->value - pmt->value);
pmt = pmt->next;
}
}
if (otp->next != NULL) {
int mem1, mem2;
struct osd_text_p *mem, *hold;
exit = 0;
// until the last word of a line can be moved to the beginning of following line
// reducing the 'sum of the differences in length among the lines', it is done
while (exit == 0) {
hold = NULL;
exit = 1;
for (tmp_otp = otp; tmp_otp->next != NULL; tmp_otp = tmp_otp->next) {
pmt = tmp_otp->next;
for (tmp = tmp_otp->ott; tmp->next != pmt->ott; tmp = tmp->next);
if (pmt->value + tmp->osd_length + pmt->ott->osd_kerning <= xlimit) {
mem1 = tmp_otp->value;
mem2 = pmt->value;
tmp_otp->value = mem1 - tmp->osd_length - tmp->osd_kerning;
pmt->value = mem2 + tmp->osd_length + pmt->ott->osd_kerning;
value = 0;
for (mem = otp; mem->next != NULL; mem = mem->next) {
pmt = mem->next;
while (pmt != NULL) {
value += abs(mem->value - pmt->value);
pmt = pmt->next;
}
}
if (value < minimum) {
minimum = value;
hold = tmp_otp;
exit = 0;
}
tmp_otp->value = mem1;
tmp_otp->next->value = mem2;
}
}
// merging
if (exit == 0) {
tmp_otp = hold;
pmt = tmp_otp->next;
for (tmp = tmp_otp->ott; tmp->next != pmt->ott; tmp = tmp->next);
mem1 = tmp_otp->value;
mem2 = pmt->value;
tmp_otp->value = mem1 - tmp->osd_length - tmp->osd_kerning;
pmt->value = mem2 + tmp->osd_length + pmt->ott->osd_kerning;
pmt->ott = tmp;
}//~merging
}//~while(exit == 0)
}//~if(otp->next!=NULL)
#endif
// adding otp (containing splitted lines) to otp chain
if (otp_sub == NULL) {
otp_sub = otp;
for (otp_sub_tmp = otp_sub; otp_sub_tmp->next != NULL; otp_sub_tmp = otp_sub_tmp->next);
} else {
//updating ott chain
tmp = otp_sub->ott;
while (tmp->next != NULL) tmp = tmp->next;
tmp->next = otp->ott;
otp->ott->prev = tmp;
//attaching new subtitle line at the end
otp_sub_tmp->next = otp;
otp->prev = otp_sub_tmp;
do
otp_sub_tmp = otp_sub_tmp->next;
while (otp_sub_tmp->next != NULL);
}
}//~ if(osl != NULL)
} // while
// write lines into utbl
xtblc = 0;
utblc = 0;
obj->y = dys;
obj->params.subtitle.lines = 0;
for (tmp_otp = otp_sub; tmp_otp != NULL; tmp_otp = tmp_otp->next) {
if ((obj->params.subtitle.lines++) >= MAX_UCSLINES)
break;
if (h > obj->y) { // out of the screen so end parsing
obj->y -= lasth - sub_font->height; // correct the y position
break;
}
xsize = tmp_otp->value;
obj->params.subtitle.xtbl[xtblc++] = (dxs - xsize) / 2;
if (xmin > (dxs - xsize) / 2)
xmin = (dxs - xsize) / 2;
if (xmax < (dxs + xsize) / 2)
xmax = (dxs + xsize) / 2;
tmp = (tmp_otp->next == NULL) ? NULL : tmp_otp->next->ott;
for (tmp_ott = tmp_otp->ott; tmp_ott != tmp; tmp_ott = tmp_ott->next) {
for (counter = 0; counter < tmp_ott->text_length; ++counter) {
if (utblc > MAX_UCS) {
break;
}
c = tmp_ott->text[counter];
render_one_glyph(sub_font, c);
obj->params.subtitle.utbl[utblc++] = c;
k++;
}
obj->params.subtitle.utbl[utblc++] = ' ';
}
obj->params.subtitle.utbl[utblc - 1] = 0;
obj->y -= sub_font->height;
}
if(obj->params.subtitle.lines)
obj->y = dys - ((obj->params.subtitle.lines - 1) * sub_font->height + sub_font->pic_a[sub_font->font[40]]->h);
// free memory
if (otp_sub != NULL) {
for (tmp = otp_sub->ott; tmp->next != NULL; free(tmp->prev)) {
free(tmp->text);
tmp = tmp->next;
}
free(tmp->text);
free(tmp);
for(pmt = otp_sub; pmt->next != NULL; free(pmt->prev)) {
pmt = pmt->next;
}
free(pmt);
}
}
/// vertical alignment
h = dys - obj->y;
if (sub_alignment == 2)
obj->y = dys * sub_pos / 100 - h;
else if (sub_alignment == 1)
obj->y = dys * sub_pos / 100 - h / 2;
else
obj->y = dys * sub_pos / 100;
if (obj->y < 0)
obj->y = 0;
if (obj->y > dys - h)
obj->y = dys - h;
obj->bbox.y2 = obj->y + h;
// calculate bbox:
if (sub_justify) xmin = 10;
obj->bbox.x1=xmin;
obj->bbox.x2=xmax;
obj->bbox.y1=obj->y;
// obj->bbox.y2=obj->y+obj->params.subtitle.lines*sub_font->height;
obj->flags|=OSDFLAG_BBOX;
alloc_buf(obj);
y = obj->y;
obj->alignment = 0;
switch(vo_sub->alignment) {
case SUB_ALIGNMENT_BOTTOMLEFT:
case SUB_ALIGNMENT_MIDDLELEFT:
case SUB_ALIGNMENT_TOPLEFT:
obj->alignment |= 0x1;
break;
case SUB_ALIGNMENT_BOTTOMRIGHT:
case SUB_ALIGNMENT_MIDDLERIGHT:
case SUB_ALIGNMENT_TOPRIGHT:
obj->alignment |= 0x2;
break;
case SUB_ALIGNMENT_BOTTOMCENTER:
case SUB_ALIGNMENT_MIDDLECENTER:
case SUB_ALIGNMENT_TOPCENTER:
default:
obj->alignment |= 0x0;
}
i=j=0;
if ((l = obj->params.subtitle.lines)) {
for(counter = dxs; i < l; ++i)
if (obj->params.subtitle.xtbl[i] < counter) counter = obj->params.subtitle.xtbl[i];
for (i = 0; i < l; ++i) {
switch (obj->alignment&0x3) {
case 1:
// left
x = counter;
break;
case 2:
// right
x = 2 * obj->params.subtitle.xtbl[i] - counter - ((obj->params.subtitle.xtbl[i] == counter) ? 0 : 1);
break;
default:
//center
x = obj->params.subtitle.xtbl[i];
}
prevc = -1;
while ((c=obj->params.subtitle.utbl[j++])){
x += kerning(sub_font,prevc,c);
if ((font=sub_font->font[c])>=0)
draw_alpha_buf(obj,x,y,
sub_font->width[c],
sub_font->pic_a[font]->h+y<obj->dys ? sub_font->pic_a[font]->h : obj->dys-y,
sub_font->pic_b[font]->bmp+sub_font->start[c],
sub_font->pic_a[font]->bmp+sub_font->start[c],
sub_font->pic_a[font]->w);
x+=sub_font->width[c]+sub_font->charspace;
prevc = c;
}
y+=sub_font->height;
}
}
}
inline static void vo_update_spudec_sub(mp_osd_obj_t* obj, int dxs, int dys)
{
unsigned int bbox[4];
spudec_calc_bbox(vo_spudec, dxs, dys, bbox);
obj->bbox.x1 = bbox[0];
obj->bbox.x2 = bbox[1];
obj->bbox.y1 = bbox[2];
obj->bbox.y2 = bbox[3];
obj->flags |= OSDFLAG_BBOX;
}
inline static void vo_draw_spudec_sub(mp_osd_obj_t* obj, void (*draw_alpha)(void *ctx, int x0, int y0, int w, int h, unsigned char* src, unsigned char* srca, int stride), void *ctx)
{
spudec_draw_scaled(vo_spudec, obj->dxs, obj->dys, draw_alpha, ctx);
}
void *vo_spudec=NULL;
void *vo_vobsub=NULL;
static int draw_alpha_init_flag=0;
extern void vo_draw_alpha_init(void);
mp_osd_obj_t* vo_osd_list=NULL;
static mp_osd_obj_t* new_osd_obj(int type){
mp_osd_obj_t* osd=malloc(sizeof(mp_osd_obj_t));
memset(osd,0,sizeof(mp_osd_obj_t));
osd->next=vo_osd_list;
vo_osd_list=osd;
osd->type=type;
osd->alpha_buffer = NULL;
osd->bitmap_buffer = NULL;
osd->allocated = -1;
return osd;
}
void osd_free(struct osd_state *osd)
{
mp_osd_obj_t* obj=vo_osd_list;
while(obj){
mp_osd_obj_t* next=obj->next;
if (obj->alpha_buffer) free(obj->alpha_buffer);
if (obj->bitmap_buffer) free(obj->bitmap_buffer);
free(obj);
obj=next;
}
vo_osd_list=NULL;
talloc_free(osd);
}
#define FONT_LOAD_DEFER 6
int osd_update(struct osd_state *osd, int dxs, int dys)
{
mp_osd_obj_t* obj=vo_osd_list;
int chg=0;
#ifdef HAVE_FREETYPE
static int defer_counter = 0, prev_dxs = 0, prev_dys = 0;
#endif
#ifdef HAVE_FREETYPE
// here is the right place to get screen dimensions
if (((dxs != vo_image_width)
&& (subtitle_autoscale == 2 || subtitle_autoscale == 3))
|| ((dys != vo_image_height)
&& (subtitle_autoscale == 1 || subtitle_autoscale == 3)))
{
// screen dimensions changed
// wait a while to avoid useless reloading of the font
if (dxs == prev_dxs || dys == prev_dys) {
defer_counter++;
} else {
prev_dxs = dxs;
prev_dys = dys;
defer_counter = 0;
}
if (defer_counter >= FONT_LOAD_DEFER) force_load_font = 1;
}
if (force_load_font) {
force_load_font = 0;
load_font_ft(dxs, dys, &vo_font, font_name, osd_font_scale_factor);
if (sub_font_name)
load_font_ft(dxs, dys, &sub_font, sub_font_name, text_font_scale_factor);
else
load_font_ft(dxs, dys, &sub_font, font_name, text_font_scale_factor);
prev_dxs = dxs;
prev_dys = dys;
defer_counter = 0;
} else {
if (!vo_font)
load_font_ft(dxs, dys, &vo_font, font_name, osd_font_scale_factor);
if (!sub_font) {
if (sub_font_name)
load_font_ft(dxs, dys, &sub_font, sub_font_name, text_font_scale_factor);
else
load_font_ft(dxs, dys, &sub_font, font_name, text_font_scale_factor);
}
}
#endif
while(obj){
if(dxs!=obj->dxs || dys!=obj->dys || obj->flags&OSDFLAG_FORCE_UPDATE){
int vis=obj->flags&OSDFLAG_VISIBLE;
obj->flags&=~OSDFLAG_BBOX;
switch(obj->type){
#ifdef USE_DVDNAV
case OSDTYPE_DVDNAV:
vo_update_nav(obj,dxs,dys);
break;
#endif
case OSDTYPE_SUBTITLE:
vo_update_text_sub(obj,dxs,dys);
break;
#ifdef HAVE_TV_TELETEXT
case OSDTYPE_TELETEXT:
vo_update_text_teletext(obj,dxs,dys);
break;
#endif
case OSDTYPE_PROGBAR:
vo_update_text_progbar(obj,dxs,dys);
break;
case OSDTYPE_SPU:
if(sub_visibility && vo_spudec && spudec_visible(vo_spudec)){
vo_update_spudec_sub(obj, dxs, dys);
obj->flags|=OSDFLAG_VISIBLE|OSDFLAG_CHANGED;
}
else
obj->flags&=~OSDFLAG_VISIBLE;
break;
case OSDTYPE_OSD:
if(vo_font && osd->osd_text[0]){
vo_update_text_osd(osd, obj, dxs, dys); // update bbox
obj->flags|=OSDFLAG_VISIBLE|OSDFLAG_CHANGED;
} else
obj->flags&=~OSDFLAG_VISIBLE;
break;
}
// check bbox:
if(!(obj->flags&OSDFLAG_BBOX)){
// we don't know, so assume the whole screen changed :(
obj->bbox.x1=obj->bbox.y1=0;
obj->bbox.x2=dxs;
obj->bbox.y2=dys;
obj->flags|=OSDFLAG_BBOX;
} else {
// check bbox, reduce it if it's out of bounds (corners):
if(obj->bbox.x1<0) obj->bbox.x1=0;
if(obj->bbox.y1<0) obj->bbox.y1=0;
if(obj->bbox.x2>dxs) obj->bbox.x2=dxs;
if(obj->bbox.y2>dys) obj->bbox.y2=dys;
if(obj->flags&OSDFLAG_VISIBLE)
// debug:
mp_msg(MSGT_OSD,MSGL_DBG2,"OSD update: %d;%d %dx%d \n",
obj->bbox.x1,obj->bbox.y1,obj->bbox.x2-obj->bbox.x1,
obj->bbox.y2-obj->bbox.y1);
}
// check if visibility changed:
if(vis != (obj->flags&OSDFLAG_VISIBLE) ) obj->flags|=OSDFLAG_CHANGED;
// remove the cause of automatic update:
obj->dxs=dxs; obj->dys=dys;
obj->flags&=~OSDFLAG_FORCE_UPDATE;
}
if(obj->flags&OSDFLAG_CHANGED){
chg|=1<<obj->type;
mp_msg(MSGT_OSD,MSGL_DBG2,"OSD chg: %d V: %s pb:%d \n",obj->type,(obj->flags&OSDFLAG_VISIBLE)?"yes":"no",vo_osd_progbar_type);
}
obj=obj->next;
}
return chg;
}
struct osd_state *osd_create(void)
{
struct osd_state *osd = talloc_ptrtype(NULL, osd);
*osd = (struct osd_state){
};
if(!draw_alpha_init_flag){
draw_alpha_init_flag=1;
vo_draw_alpha_init();
}
// temp hack, should be moved to mplayer/mencoder later
new_osd_obj(OSDTYPE_OSD);
new_osd_obj(OSDTYPE_SUBTITLE);
new_osd_obj(OSDTYPE_PROGBAR);
new_osd_obj(OSDTYPE_SPU);
#ifdef USE_DVDNAV
new_osd_obj(OSDTYPE_DVDNAV);
#endif
#if HAVE_TV_TELETEXT
new_osd_obj(OSDTYPE_TELETEXT);
#endif
#ifdef HAVE_FREETYPE
force_load_font = 1;
#endif
return osd;
}
int vo_osd_changed_flag=0;
void osd_remove_text(struct osd_state *osd, int dxs, int dys,
void (*remove)(int x0, int y0, int w, int h))
{
mp_osd_obj_t* obj=vo_osd_list;
osd_update(osd, dxs, dys);
while(obj){
if(((obj->flags&OSDFLAG_CHANGED) || (obj->flags&OSDFLAG_VISIBLE)) &&
(obj->flags&OSDFLAG_OLD_BBOX)){
int w=obj->old_bbox.x2-obj->old_bbox.x1;
int h=obj->old_bbox.y2-obj->old_bbox.y1;
if(w>0 && h>0){
vo_osd_changed_flag=obj->flags&OSDFLAG_CHANGED; // temp hack
remove(obj->old_bbox.x1,obj->old_bbox.y1,w,h);
}
// obj->flags&=~OSDFLAG_OLD_BBOX;
}
obj=obj->next;
}
}
void osd_draw_text(struct osd_state *osd, int dxs, int dys,
void (*draw_alpha)(void *ctx, int x0, int y0, int w, int h,
unsigned char* src, unsigned char *srca,
int stride),
void *ctx)
{
mp_osd_obj_t* obj=vo_osd_list;
osd_update(osd, dxs, dys);
while(obj){
if(obj->flags&OSDFLAG_VISIBLE){
vo_osd_changed_flag=obj->flags&OSDFLAG_CHANGED; // temp hack
switch(obj->type){
case OSDTYPE_SPU:
vo_draw_spudec_sub(obj, draw_alpha, ctx); // FIXME
break;
#ifdef USE_DVDNAV
case OSDTYPE_DVDNAV:
#endif
#ifdef HAVE_TV_TELETEXT
case OSDTYPE_TELETEXT:
#endif
case OSDTYPE_OSD:
case OSDTYPE_SUBTITLE:
case OSDTYPE_PROGBAR:
vo_draw_text_from_buffer(obj, draw_alpha, ctx);
break;
}
obj->old_bbox=obj->bbox;
obj->flags|=OSDFLAG_OLD_BBOX;
}
obj->flags&=~OSDFLAG_CHANGED;
obj=obj->next;
}
}
static int vo_osd_changed_status = 0;
int vo_osd_changed(int new_value)
{
mp_osd_obj_t* obj=vo_osd_list;
int ret = vo_osd_changed_status;
vo_osd_changed_status = new_value;
while(obj){
if(obj->type==new_value) obj->flags|=OSDFLAG_FORCE_UPDATE;
obj=obj->next;
}
return ret;
}
// BBBBBBBBBBBB AAAAAAAAAAAAA BBBBBBBBBBB
// BBBBBBBBBBBB BBBBBBBBBBBBB
// BBBBBBB
// return TRUE if we have osd in the specified rectangular area:
int vo_osd_check_range_update(int x1,int y1,int x2,int y2){
mp_osd_obj_t* obj=vo_osd_list;
while(obj){
if(obj->flags&OSDFLAG_VISIBLE){
if( (obj->bbox.x1<=x2 && obj->bbox.x2>=x1) &&
(obj->bbox.y1<=y2 && obj->bbox.y2>=y1) &&
obj->bbox.y2 > obj->bbox.y1 && obj->bbox.x2 > obj->bbox.x1
) return 1;
}
obj=obj->next;
}
return 0;
}
View Git Blame Copy Permalink