gui/skin/font.c

   1
   2 #include <stdlib.h>
   3 #include <stdio.h>
   4 #include <stdarg.h>
   5 #include <string.h>
   6 #include <inttypes.h>
   7
   8 #include "app.h"
   9 #include "skin.h"
  10 #include "font.h"
  11 #include "cut.h"
  12 #include "../mp_msg.h"
  13 #include "../libavutil/avstring.h"
  14
  15 int items;
  16
  17 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 };
  18
  19 int fntAddNewFont( char * name )
  20 {
  21  int id;
  22  int i;
  23
  24  for( id=0;id<26;id++ )
  25    if ( !Fonts[id] ) break;
  26
  27  if ( id == 25 ) return -2;
  28
  29  if ( ( Fonts[id]=calloc( 1,sizeof( bmpFont ) ) ) == NULL ) return -1;
  30
  31  av_strlcpy( Fonts[id]->name,name,128 ); // FIXME: as defined in font.h
  32  for ( i=0;i<256;i++ )
  33    Fonts[id]->Fnt[i].x=Fonts[id]->Fnt[i].y=Fonts[id]->Fnt[i].sx=Fonts[id]->Fnt[i].sy=-1;
  34
  35  return id;
  36 }
  37
  38 void fntFreeFont( void )
  39 {
  40  int i;
  41  for( i=0;i < 25;i++ )
  42   {
  43    if ( Fonts[i] )
  44     {
  45      if ( Fonts[i]->Bitmap.Image ) free( Fonts[i]->Bitmap.Image );
  46      free( Fonts[i] );
  47      Fonts[i]=NULL;
  48     }
  49   }
  50 }
  51
  52 int fntRead( char * path,char * fname )
  53 {
  54  FILE * f;
  55  unsigned char   tmp[512];
  56  unsigned char * ptmp;
  57  unsigned char   command[32];
  58  unsigned char   param[256];
  59  int             c,linenumber = 0;
  60  int             id = fntAddNewFont( fname );
  61
  62  if ( id < 0 ) return id;
  63
  64  av_strlcpy( tmp,path,sizeof( tmp ) );
  65  av_strlcat( tmp,fname,sizeof( tmp ) ); av_strlcat( tmp,".fnt",sizeof( tmp ) );
  66  if ( ( f=fopen( tmp,"rt" ) ) == NULL )
  67    { free( Fonts[id] ); return -3; }
  68
  69  while ( !feof( f ) )
  70   {
  71    fgets( tmp,255,f ); linenumber++;
  72
  73    c=tmp[ strlen( tmp ) - 1 ]; if ( ( c == '\n' )||( c == '\r' ) ) tmp[ strlen( tmp ) - 1 ]=0;
  74    c=tmp[ strlen( tmp ) - 1 ]; if ( ( c == '\n' )||( c == '\r' ) ) tmp[ strlen( tmp ) - 1 ]=0;
  75    for ( c=0;c < (int)strlen( tmp );c++ )
  76      if ( tmp[c] == ';' ) { tmp[c]=0; break; }
  77    if ( !tmp[0] ) continue;
  78    ptmp=trimleft( tmp );
  79    if ( !tmp[0] ) continue;
  80    ptmp=strswap( ptmp,'\t',' ' );
  81    ptmp=trim( ptmp );
  82    cutItem( ptmp,command,'=',0 ); cutItem( ptmp,param,'=',1 );
  83    if ( command[0] == '"' )
  84     {
  85      int i;
  86      cutItem( command,command,'"',1 );
  87      i=(int)command[0];
  88      cutItem( param,tmp,',',0 ); Fonts[id]->Fnt[i].x=atoi( tmp );
  89      cutItem( param,tmp,',',1 ); Fonts[id]->Fnt[i].y=atoi( tmp );
  90      cutItem( param,tmp,',',2 ); Fonts[id]->Fnt[i].sx=atoi( tmp );
  91      cutItem( param,tmp,',',3 ); Fonts[id]->Fnt[i].sy=atoi( tmp );
  92      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 );
  93     }
  94     else
  95      {
  96       if ( !strcmp( command,"image" ) )
  97        {
  98         av_strlcpy( tmp,path,sizeof( tmp )  ); av_strlcat( tmp,param,sizeof( tmp ) );
  99         mp_dbg( MSGT_GPLAYER,MSGL_DBG2,"[font] font imagefile: %s\n",tmp );
 100         if ( skinBPRead( tmp,&Fonts[id]->Bitmap ) ) return -4;
 101        }
 102      }
 103    }
 104
 105  return 0;
 106 }
 107
 108 int fntFindID( char * name )
 109 {
 110  int i;
 111  for ( i=0;i < 25;i++ )
 112    if ( Fonts[i] )
 113      if ( !strcmp( name,Fonts[i]->name ) ) return i;
 114  return -1;
 115 }
 116
 117 int fntTextWidth( int id,char * str )
 118 {
 119  int size = 0;
 120  int i;
 121
 122  if ( ( !Fonts[id] )||( !str[0] ) ) return 0;
 123
 124  for ( i=0;i < (int)strlen( str );i++ )
 125   {
 126    unsigned char c = (unsigned char)str[i];
 127    if ( Fonts[id]->Fnt[c].sx == -1 ) c = ' ';
 128    size+= Fonts[id]->Fnt[ c ].sx;
 129   }
 130  return size;
 131 }
 132
 133 int fntTextHeight( int id,char * str )
 134 {
 135  int max = 0,i;
 136
 137  if ( ( !Fonts[id] )||( !str[0] ) ) return 0;
 138
 139  for ( i=0;i < (int)strlen( str );i++ )
 140   {
 141    int h;
 142    unsigned char c = (unsigned char)str[i];
 143    if ( Fonts[id]->Fnt[c].sx == -1 ) c = ' ';
 144    h = Fonts[id]->Fnt[c].sy;
 145    if ( h > max ) max=h;
 146   }
 147  return max;
 148 }
 149
 150 txSample * fntRender( wItem * item,int px,const char * fmt,... )
 151 {
 152  va_list         ap;
 153  unsigned char   p[512];
 154  unsigned int    c;
 155  int             i, dx = 0, tw, fbw, iw, id, ofs;
 156  int             x,y,fh,fw,fyc,yc;
 157  uint32_t      * ibuf;
 158  uint32_t      * obuf;
 159
 160  va_start( ap,fmt );
 161  vsnprintf( p,512,fmt,ap );
 162  va_end( ap );
 163
 164  iw=item->width;
 165  id=item->fontid;
 166
 167  if ( ( !item )||
 168       ( !Fonts[id] )||
 169       ( !p[0] )||
 170       ( !fntTextWidth( id,p ) ) ) return NULL;
 171
 172  tw=fntTextWidth( id,p );
 173  fbw=Fonts[id]->Bitmap.Width;
 174
 175  if ( item->Bitmap.Image == NULL )
 176   {
 177    item->Bitmap.Height=item->height=fntTextHeight( id,p );
 178    item->Bitmap.Width=item->width=iw;
 179    item->Bitmap.ImageSize=item->height * iw * 4;
 180    if ( !item->Bitmap.ImageSize ) return NULL;
 181    item->Bitmap.BPP=32;
 182    item->Bitmap.Image=malloc( item->Bitmap.ImageSize );
 183   }
 184
 185  obuf=(uint32_t *)item->Bitmap.Image;
 186  ibuf=(uint32_t *)Fonts[id]->Bitmap.Image;
 187
 188  for ( i=0;i < item->Bitmap.ImageSize / 4;i++ ) obuf[i]=0xff00ff;
 189
 190  if ( tw <= iw )
 191   {
 192    switch ( item->align )
 193     {
 194      default:
 195      case fntAlignLeft:   dx=0; break;
 196      case fntAlignCenter: dx=( iw - fntTextWidth( id,p ) ) / 2; break;
 197      case fntAlignRight:  dx=iw - fntTextWidth( id,p ); break;
 198     }
 199
 200   } else dx+=px;
 201
 202  ofs=dx;
 203
 204  for ( i=0;i < (int)strlen( p );i++ )
 205   {
 206    c=(unsigned int)p[i];
 207    fw=Fonts[id]->Fnt[c].sx;
 208
 209    if ( fw == -1 ) { c=32; fw=Fonts[id]->Fnt[c].sx; }
 210
 211    fh=Fonts[id]->Fnt[c].sy;
 212    fyc=Fonts[id]->Fnt[c].y * fbw + Fonts[id]->Fnt[c].x;
 213    yc=dx;
 214
 215    if ( dx >= 0 )
 216     for ( y=0;y < fh;y++ )
 217      {
 218       for ( x=0; x < fw;x++ )
 219        if ( dx + x >= 0 && dx + x < iw ) obuf[yc + x]=ibuf[ fyc + x ];
 220       fyc+=fbw;
 221       yc+=iw;
 222      }
 223    dx+=fw;
 224   }
 225
 226  if ( ofs > 0 && tw > item->width )
 227   {
 228    dx=ofs;
 229    for ( i=(int)strlen( p );i > 0;i-- )
 230     {
 231      c=(unsigned int)p[i];
 232      fw=Fonts[id]->Fnt[c].sx;
 233
 234      if ( fw == -1 ) { c=32; fw=Fonts[id]->Fnt[c].sx; }
 235
 236      fh=Fonts[id]->Fnt[c].sy;
 237      fyc=Fonts[id]->Fnt[c].y * fbw + Fonts[id]->Fnt[c].x;
 238
 239      dx-=fw; yc=dx;
 240      if ( dx >= 0 )
 241       for ( y=0;y < fh;y++ )
 242        {
 243         for ( x=fw - 1;x >= 0;x-- )
 244          if ( dx + x >= 0 && dx + x < iw ) obuf[yc + x]=ibuf[fyc + x];
 245         fyc+=fbw;
 246         yc+=iw;
 247        }
 248     }
 249   }
 250
 251  return &item->Bitmap;
 252 }