Esempio n. 1
0
  /* Initialize the display bitmap named `bit' */
  static void
  Init_Display( void )
  {
    grInitDevices();

    bit.mode  = gr_pixel_mode_gray;
    bit.width = width;
    bit.rows  = height;
    bit.grays = 256;

    surface = grNewSurface( 0, &bit );
    if ( !surface )
      PanicZ( "could not allocate display surface\n" );

    graph_init = 1;
  }
  FTDemo_Display*
  FTDemo_Display_New( grPixelMode  mode,
                      int          width,
                      int          height )
  {
    FTDemo_Display*  display;
    grSurface*       surface;
    grBitmap         bit;


    display = (FTDemo_Display *)malloc( sizeof ( FTDemo_Display ) );
    if ( !display )
      return NULL;

    if ( mode != gr_pixel_mode_gray  &&
         mode != gr_pixel_mode_rgb24 )
      return NULL;

    grInitDevices();

    bit.mode  = mode;
    bit.width = width;
    bit.rows  = height;
    bit.grays = 256;

    surface = grNewSurface( 0, &bit );

    if ( !surface )
    {
      free( display );
      return NULL;
    }

    display->surface = surface;
    display->bitmap  = &surface->bitmap;

    grSetGlyphGamma( 1.0 );

    display->fore_color = grFindColor( display->bitmap,
                                       0x00, 0x00, 0x00, 0xff );
    display->back_color = grFindColor( display->bitmap,
                                       0xff, 0xff, 0xff, 0xff );
    display->warn_color = grFindColor( display->bitmap,
                                       0xff, 0x00, 0x00, 0xff );

    return display;
  }