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mpv/sub/sub.c
harklu d4b8d1486a core: allocate OSD text buffers dynamically 
The OSD text buffers (mp_osd_msg_t.text and osd_state.text) used to be
static arrays, with the buffer sizes spread all over the code as magic
constants. Make the buffers dynamically allocated and remove the
arbitrary length limits.
2011-08-09 03:28:58 +03:00

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/*
* 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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "config.h"
#if HAVE_MALLOC_H
#include <malloc.h>
#endif
#include "stream/stream.h"
#include "stream/stream_dvdnav.h"
#define OSD_NAV_BOX_ALPHA 0x7f
#include "libmpcodecs/dec_teletext.h"
#include "osdep/timer.h"
#include "talloc.h"
#include "mplayer.h"
#include "mp_msg.h"
#include "libvo/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[]={
_("Seekbar"),
_("Play"),
_("Pause"),
_("Stop"),
_("Rewind"),
_("Forward"),
_("Clock"),
_("Contrast"),
_("Saturation"),
_("Volume"),
_("Brightness"),
_("Hue"),
_("Balance")
};
char * const sub_osd_names_short[] ={ "", "|>", "||", "[]", "<<" , ">>", "", "", "", "", "", "", "" };
//static int vo_font_loaded=-1;
font_desc_t* vo_font=NULL;
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;
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 CONFIG_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 = memalign(16, len);
obj->alpha_buffer = 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 CONFIG_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 left_border, int top_border,
int right_border, int bottom_border, int orig_w, int orig_h) {
int len;
int sx = nav_hl.sx, sy = nav_hl.sy;
int ex = nav_hl.ex, ey = nav_hl.ey;
int scaled_w = dxs - left_border - right_border;
int scaled_h = dys - top_border - bottom_border;
if (scaled_w != orig_w) {
sx = sx * scaled_w / orig_w;
ex = ex * scaled_w / orig_w;
}
if (scaled_h != orig_h) {
sy = sy * scaled_h / orig_h;
ey = ey * scaled_h / orig_h;
}
sx += left_border; ex += left_border;
sy += top_border; ey += top_border;
sx = FFMIN(FFMAX(sx, 0), dxs);
ex = FFMIN(FFMAX(ex, 0), dxs);
sy = FFMIN(FFMAX(sy, 0), dys);
ey = FFMIN(FFMAX(ey, 0), dys);
obj->bbox.x1 = obj->x = sx;
obj->bbox.y1 = obj->y = sy;
obj->bbox.x2 = ex;
obj->bbox.y2 = 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
// 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;
static const uint8_t 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);
#ifdef CONFIG_FREETYPE
//very simple teletext font auto scaling
if(!vo_osd_teletext_scale && hm*(max_rows+1)>dys){
osd_font_scale_factor*=1.0*(dys)/((max_rows+1)*hm);
force_load_font=1;
vo_osd_teletext_scale=osd_font_scale_factor;
obj->flags&=~OSDFLAG_VISIBLE;
return;
}
#endif
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]);
}
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;
inline static void vo_update_text_sub(struct osd_state *osd, 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 xsize;
int xmin=dxs,xmax=0;
int h,lasth;
int xtblc, utblc;
struct font_desc *sub_font = osd->sub_font;
obj->flags|=OSDFLAG_CHANGED|OSDFLAG_VISIBLE;
if(!vo_sub || !osd->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;
l=vo_sub->lines;
{
struct osd_text_t *osl, *cp_ott, *tmp_ott, *tmp;
struct osd_text_p *otp_sub = NULL, *otp_sub_tmp = NULL, // 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((const 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 = 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 = 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 = 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 = 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 = 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 = 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;
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;
free(obj->alpha_buffer);
free(obj->bitmap_buffer);
free(obj);
obj=next;
}
vo_osd_list=NULL;
talloc_free(osd);
}
#define FONT_LOAD_DEFER 6
static int osd_update_ext(struct osd_state *osd, int dxs, int dys,
int left_border, int top_border, int right_border,
int bottom_border, int orig_w, int orig_h)
{
mp_osd_obj_t* obj=vo_osd_list;
int chg=0;
#ifdef CONFIG_FREETYPE
static int defer_counter = 0, prev_dxs = 0, prev_dys = 0;
#endif
#ifdef CONFIG_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, &osd->sub_font, sub_font_name, text_font_scale_factor);
else
load_font_ft(dxs, dys, &osd->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 (!osd->sub_font) {
if (sub_font_name)
load_font_ft(dxs, dys, &osd->sub_font, sub_font_name, text_font_scale_factor);
else
load_font_ft(dxs, dys, &osd->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 CONFIG_DVDNAV
case OSDTYPE_DVDNAV:
vo_update_nav(obj,dxs,dys, left_border, top_border, right_border, bottom_border, orig_w, orig_h);
break;
#endif
case OSDTYPE_SUBTITLE:
vo_update_text_sub(osd, obj,dxs,dys);
break;
case OSDTYPE_TELETEXT:
vo_update_text_teletext(obj,dxs,dys);
break;
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;
}
int osd_update(struct osd_state *osd, int dxs, int dys)
{
return osd_update_ext(osd, dxs, dys, 0, 0, 0, 0, dxs, dys);
}
struct osd_state *osd_create(void)
{
struct osd_state *osd = talloc_zero(NULL, struct osd_state);
*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 later
new_osd_obj(OSDTYPE_OSD);
new_osd_obj(OSDTYPE_SUBTITLE);
new_osd_obj(OSDTYPE_PROGBAR);
new_osd_obj(OSDTYPE_SPU);
#ifdef CONFIG_DVDNAV
new_osd_obj(OSDTYPE_DVDNAV);
#endif
new_osd_obj(OSDTYPE_TELETEXT);
#ifdef CONFIG_FREETYPE
force_load_font = 1;
#endif
osd_set_text(osd, NULL);
return osd;
}
void osd_set_text(struct osd_state *osd, const char *text) {
talloc_free(osd->osd_text);
//osd->text must never be NULL
if (!text)
text = "";
osd->osd_text = talloc_strdup(osd, text);
}
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_ext(struct osd_state *osd, int dxs, int dys,
int left_border, int top_border, int right_border,
int bottom_border, int orig_w, int orig_h,
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_ext(osd, dxs, dys, left_border, top_border, right_border,
bottom_border, orig_w, orig_h);
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 CONFIG_DVDNAV
case OSDTYPE_DVDNAV:
#endif
case OSDTYPE_TELETEXT:
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;
}
}
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)
{
osd_draw_text_ext(osd, dxs, dys, 0, 0, 0, 0, dxs, dys, draw_alpha, ctx);
}
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;
}
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