mpv/gui/skin/font.c

270 lines
6.4 KiB
C

/*
* 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 <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <inttypes.h>
#include "gui/app.h"
#include "skin.h"
#include "font.h"
#include "cut.h"
#include "mp_msg.h"
#include "libavutil/avstring.h"
int items;
bmpFont * Fonts[26] = { NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL };
int fntAddNewFont( char * name )
{
int id;
int i;
for( id=0;id<26;id++ )
if ( !Fonts[id] ) break;
if ( id == 25 ) return -2;
if ( ( Fonts[id]=calloc( 1,sizeof( bmpFont ) ) ) == NULL ) return -1;
av_strlcpy( Fonts[id]->name,name,128 ); // FIXME: as defined in font.h
for ( i=0;i<256;i++ )
Fonts[id]->Fnt[i].x=Fonts[id]->Fnt[i].y=Fonts[id]->Fnt[i].sx=Fonts[id]->Fnt[i].sy=-1;
return id;
}
void fntFreeFont( void )
{
int i;
for( i=0;i < 25;i++ )
{
if ( Fonts[i] )
{
if ( Fonts[i]->Bitmap.Image ) free( Fonts[i]->Bitmap.Image );
free( Fonts[i] );
Fonts[i]=NULL;
}
}
}
int fntRead( char * path,char * fname )
{
FILE * f;
unsigned char tmp[512];
unsigned char * ptmp;
unsigned char command[32];
unsigned char param[256];
int c,linenumber = 0;
int id = fntAddNewFont( fname );
if ( id < 0 ) return id;
av_strlcpy( tmp,path,sizeof( tmp ) );
av_strlcat( tmp,fname,sizeof( tmp ) ); av_strlcat( tmp,".fnt",sizeof( tmp ) );
if ( ( f=fopen( tmp,"rt" ) ) == NULL )
{ free( Fonts[id] ); return -3; }
while ( fgets( tmp,255,f ) )
{
linenumber++;
// remove any kind of newline, if any
tmp[strcspn(tmp, "\n\r")] = 0;
for ( c=0;c < (int)strlen( tmp );c++ )
if ( tmp[c] == ';' ) { tmp[c]=0; break; }
if ( !tmp[0] ) continue;
ptmp=trimleft( tmp );
if ( !tmp[0] ) continue;
ptmp=strswap( ptmp,'\t',' ' );
ptmp=trim( ptmp );
cutItem( ptmp,command,'=',0 ); cutItem( ptmp,param,'=',1 );
if ( command[0] == '"' )
{
int i;
cutItem( command,command,'"',1 );
i=(int)command[0];
cutItem( param,tmp,',',0 ); Fonts[id]->Fnt[i].x=atoi( tmp );
cutItem( param,tmp,',',1 ); Fonts[id]->Fnt[i].y=atoi( tmp );
cutItem( param,tmp,',',2 ); Fonts[id]->Fnt[i].sx=atoi( tmp );
cutItem( param,tmp,',',3 ); Fonts[id]->Fnt[i].sy=atoi( tmp );
mp_dbg( MSGT_GPLAYER,MSGL_DBG2,"[font] char: '%s' params: %d,%d %dx%d\n",command,Fonts[id]->Fnt[i].x,Fonts[id]->Fnt[i].y,Fonts[id]->Fnt[i].sx,Fonts[id]->Fnt[i].sy );
}
else
{
if ( !strcmp( command,"image" ) )
{
av_strlcpy( tmp,path,sizeof( tmp ) ); av_strlcat( tmp,param,sizeof( tmp ) );
mp_dbg( MSGT_GPLAYER,MSGL_DBG2,"[font] font imagefile: %s\n",tmp );
if ( skinBPRead( tmp,&Fonts[id]->Bitmap ) ) return -4;
}
}
}
return 0;
}
int fntFindID( char * name )
{
int i;
for ( i=0;i < 25;i++ )
if ( Fonts[i] )
if ( !strcmp( name,Fonts[i]->name ) ) return i;
return -1;
}
int fntTextWidth( int id,char * str )
{
int size = 0;
int i;
if ( ( !Fonts[id] )||( !str[0] ) ) return 0;
for ( i=0;i < (int)strlen( str );i++ )
{
unsigned char c = (unsigned char)str[i];
if ( Fonts[id]->Fnt[c].sx == -1 ) c = ' ';
size+= Fonts[id]->Fnt[ c ].sx;
}
return size;
}
int fntTextHeight( int id,char * str )
{
int max = 0,i;
if ( ( !Fonts[id] )||( !str[0] ) ) return 0;
for ( i=0;i < (int)strlen( str );i++ )
{
int h;
unsigned char c = (unsigned char)str[i];
if ( Fonts[id]->Fnt[c].sx == -1 ) c = ' ';
h = Fonts[id]->Fnt[c].sy;
if ( h > max ) max=h;
}
return max;
}
txSample * fntRender( wItem * item,int px,const char * fmt,... )
{
va_list ap;
unsigned char p[512];
unsigned int c;
int i, dx = 0, tw, fbw, iw, id, ofs;
int x,y,fh,fw,fyc,yc;
uint32_t * ibuf;
uint32_t * obuf;
va_start( ap,fmt );
vsnprintf( p,512,fmt,ap );
va_end( ap );
iw=item->width;
id=item->fontid;
if ( ( !item )||
( !Fonts[id] )||
( !p[0] )||
( !fntTextWidth( id,p ) ) ) return NULL;
tw=fntTextWidth( id,p );
fbw=Fonts[id]->Bitmap.Width;
if ( item->Bitmap.Image == NULL )
{
item->Bitmap.Height=item->height=fntTextHeight( id,p );
item->Bitmap.Width=item->width=iw;
item->Bitmap.ImageSize=item->height * iw * 4;
if ( !item->Bitmap.ImageSize ) return NULL;
item->Bitmap.BPP=32;
item->Bitmap.Image=malloc( item->Bitmap.ImageSize );
}
obuf=(uint32_t *)item->Bitmap.Image;
ibuf=(uint32_t *)Fonts[id]->Bitmap.Image;
for ( i=0;i < item->Bitmap.ImageSize / 4;i++ ) obuf[i]=0xff00ff;
if ( tw <= iw )
{
switch ( item->align )
{
default:
case fntAlignLeft: dx=0; break;
case fntAlignCenter: dx=( iw - fntTextWidth( id,p ) ) / 2; break;
case fntAlignRight: dx=iw - fntTextWidth( id,p ); break;
}
} else dx+=px;
ofs=dx;
for ( i=0;i < (int)strlen( p );i++ )
{
c=(unsigned int)p[i];
fw=Fonts[id]->Fnt[c].sx;
if ( fw == -1 ) { c=32; fw=Fonts[id]->Fnt[c].sx; }
fh=Fonts[id]->Fnt[c].sy;
fyc=Fonts[id]->Fnt[c].y * fbw + Fonts[id]->Fnt[c].x;
yc=dx;
if ( dx >= 0 )
for ( y=0;y < fh;y++ )
{
for ( x=0; x < fw;x++ )
if ( dx + x >= 0 && dx + x < iw ) obuf[yc + x]=ibuf[ fyc + x ];
fyc+=fbw;
yc+=iw;
}
dx+=fw;
}
if ( ofs > 0 && tw > item->width )
{
dx=ofs;
for ( i=(int)strlen( p );i > 0;i-- )
{
c=(unsigned int)p[i];
fw=Fonts[id]->Fnt[c].sx;
if ( fw == -1 ) { c=32; fw=Fonts[id]->Fnt[c].sx; }
fh=Fonts[id]->Fnt[c].sy;
fyc=Fonts[id]->Fnt[c].y * fbw + Fonts[id]->Fnt[c].x;
dx-=fw; yc=dx;
if ( dx >= 0 )
for ( y=0;y < fh;y++ )
{
for ( x=fw - 1;x >= 0;x-- )
if ( dx + x >= 0 && dx + x < iw ) obuf[yc + x]=ibuf[fyc + x];
fyc+=fbw;
yc+=iw;
}
}
}
return &item->Bitmap;
}