libs/core/GP_Convert.gen.c.t

   1 @ include source.t
   2 /*
   3  * Convert PixelType values macros and functions
   4  *
   5  * Copyright (C) 2011      Tomas Gavenciak <gavento@ucw.cz>
   6  * Copyright (C) 2011-2014 Cyril Hrubis <metan@ucw.cz>
   7  */
   8
   9 #include "GP_Convert.h"
  10 @
  11 @ # Loop around pixel types central for the conversion.
  12 @ for pt in [pixeltypes_dict['RGB888'], pixeltypes_dict['RGBA8888']]:
  13
  14 GP_Pixel GP_{{ pt.name }}ToPixel(GP_Pixel pixel, GP_PixelType type)
  15 {
  16         GP_Pixel p = 0;
  17         switch (type) {
  18 @     for tf in pixeltypes:
  19 @         if tf.is_unknown():
  20                 case GP_PIXEL_UNKNOWN:
  21                         GP_ABORT("Cannot convert {{ pt.name }} to GP_PIXEL_UNKNOWN");
  22                         break;
  23 @         elif tf.is_palette():
  24                 case GP_PIXEL_{{ tf.name }}:
  25                         GP_ABORT("Cannot convert {{ pt.name }} to palette type {{ tf.name }}");
  26                         break;
  27 @         else:
  28                 case GP_PIXEL_{{ tf.name }}:
  29                         GP_Pixel_{{ pt.name }}_TO_{{ tf.name }}(pixel, p);
  30                         break;
  31 @     end
  32                 default:
  33                         GP_ABORT("Unknown PixelType %ud", type);
  34         }
  35         return p;
  36 }
  37
  38 GP_Pixel GP_PixelTo{{ pt.name }}(GP_Pixel pixel, GP_PixelType type)
  39 {
  40         GP_Pixel p = 0;
  41         switch (type) {
  42 @     for sf in pixeltypes:
  43 @         if sf.is_unknown():
  44                 case GP_PIXEL_UNKNOWN:
  45                         GP_ABORT("Cannot convert from GP_PIXEL_UNKNOWN");
  46                         break;
  47 @         elif sf.is_palette():
  48                 case GP_PIXEL_{{ sf.name }}:
  49                         GP_ABORT("Cannot convert from palette type {{ sf.name }} (yet)");
  50                         break;
  51 @         else:
  52                 case GP_PIXEL_{{ sf.name }}:
  53                         GP_Pixel_{{ sf.name }}_TO_{{ pt.name }}(pixel, p);
  54                         break;
  55 @     end
  56                 default:
  57                         GP_ABORT("Unknown PixelType %u", type);
  58         }
  59         return p;
  60 }
  61