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mpv/libvo/sub.c
voroshil 83a2c50ef9 Teletext support for tv:// (v4l and v4l2 only) 
modified patch from Otvos Attila oattila at chello dot hu

Module uses zvbi library for all low-level  VBI operations (like I/O with vbi
device, converting vbi pages into usefull vbi_page stuctures, rendering them
into RGB32 images).

All teletext related stuff (except properties, slave commands and rendering
osd in text mode or RGB32 rendered teletext pages in spu mode) is implemented
in tvi_vbi.c

New properties:
teletext_page - switching between pages
teletext_mode - switch between on/off/opaque/transparent modes
teletext_format - (currently read-only) allows to get format info
(black/white,gray,text)
teletext_half_page - trivial zooming (displaying top/bottom half of teletext
page)

New slave commands:
teletext_add_dec - user interface for jumping to any page by editing page number
interactively
teletext_go_link - goes though links, specified on current page



git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@23530 b3059339-0415-0410-9bf9-f77b7e298cf2
2007-06-10 00:06:12 +00:00

1145 lines
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#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
#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 * __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
};
char * __sub_osd_names_short[] ={ "", "|>", "||", "[]", "<<" , ">>", "", "", "", "", "", ""};
//static int vo_font_loaded=-1;
font_desc_t* vo_font=NULL;
font_desc_t* sub_font=NULL;
unsigned char* vo_osd_text=NULL;
#ifdef HAVE_TV_TELETEXT
unsigned char* vo_osd_teletex_text=NULL;
int vo_osd_teletext_flip = 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)(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride)){
if (obj->allocated > 0) {
draw_alpha(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(mp_osd_obj_t* obj,int dxs,int dys){
const char *cp=vo_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=vo_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
inline static void vo_update_text_teletext(mp_osd_obj_t *obj, int dxs, int dys)
{
char *p,*pe;
char line[256];
int h=0,w=0,i,c,w1,font,lines,endline;
int x1,y1,x2,y2;
unsigned char *t;
obj->flags|=OSDFLAG_CHANGED|OSDFLAG_VISIBLE;
if (vo_osd_teletex_text==NULL) {
obj->flags&=~OSDFLAG_VISIBLE;
return;
}
p=vo_osd_teletex_text;
lines=0;
endline=0;
do { // calculate teletext size
memset(line,0,sizeof(line));
if(pe=strchr(p,'\n')) {
if(pe-p>sizeof(line))
strncpy(line,p,sizeof(line));
else
strncpy(line,p,pe-p);
}
else
strncpy(line,p,sizeof(line));
t=line;
w1=0;
while (*t) {
c = utf8_get_char(&t);
if (!c) c++; // avoid UCS 0
render_one_glyph(vo_font, c);
w1+=vo_font->width[c]+vo_font->charspace;
}
h+=vo_font->height;
if(w1>w) w=w1;
if(pe) pe++;
p=pe;
lines++;
if(h+vo_font->height*2>dys && endline==0) endline=lines;
} while (pe!=NULL);
h=h+vo_font->height;
w=w-vo_font->charspace;
if (w>dxs){
// calculate bbox size
x1=0;
x2=dxs;
}
else
{
x1=(dxs-w)/2;
x2=x1+w+1;
}
if (h>dys){
y1=0;
y2=dys;
}
else {
y1=0;
y2=y1+h+1;
}
obj->bbox.x1 = obj->x = x1;
obj->bbox.y1 = obj->y = y1;
obj->bbox.x2 = x2;
obj->bbox.y2 = y2;
obj->flags |= OSDFLAG_BBOX;
alloc_buf(obj);
p=vo_osd_teletex_text;
h=y1;
if (vo_osd_teletext_flip)
endline=lines-endline; // bottom page
else
endline=0; // top page
lines=0;
do { // show teletext page
memset(line,0,sizeof(line));
if(pe=strchr(p,'\n')) {
if(pe-p>sizeof(line))
strncpy(line,p,sizeof(line));
else
strncpy(line,p,pe-p);}
else
strncpy(line,p,sizeof(line));
t=line;
w1=x1;
if(lines==0 || endline==0 || lines>endline) {
while (*t) {
c = utf8_get_char(&t);
if (!c) c++; // avoid UCS 0
render_one_glyph(vo_font, c);
if(w1+vo_font->width[c]>=x2) break;
if ((font=vo_font->font[c])>=0)
draw_alpha_buf(obj,w1,h,
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);
w1+=vo_font->width[c]+vo_font->charspace;
}
h+=vo_font->height;
}
if(pe) pe++;
p=pe;
if(h+vo_font->height*2>dys) pe=NULL;
lines++;
} while (pe!=NULL);
}
#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 lenght among the lines',
// a measure of the eveness of the lenghts 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 lenght 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)(int x0, int y0, int w, int h, unsigned char* src, unsigned char* srca, int stride))
{
spudec_draw_scaled(vo_spudec, obj->dxs, obj->dys, draw_alpha);
}
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 free_osd_list(void){
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;
}
#define FONT_LOAD_DEFER 6
int vo_update_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);
load_font_ft(dxs, dys, &sub_font, sub_font_name);
prev_dxs = dxs;
prev_dys = dys;
defer_counter = 0;
} else {
if (!vo_font)
load_font_ft(dxs, dys, &vo_font, font_name);
if (!sub_font)
load_font_ft(dxs, dys, &sub_font, sub_font_name);
}
#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 && vo_osd_text && vo_osd_text[0]){
vo_update_text_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;
}
void vo_init_osd(void){
if(!draw_alpha_init_flag){
draw_alpha_init_flag=1;
vo_draw_alpha_init();
}
if(vo_osd_list) free_osd_list();
// 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
}
int vo_osd_changed_flag=0;
void vo_remove_text(int dxs,int dys,void (*remove)(int x0,int y0, int w,int h)){
mp_osd_obj_t* obj=vo_osd_list;
vo_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 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)){
mp_osd_obj_t* obj=vo_osd_list;
vo_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); // 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);
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;
}
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