src/video/image_texture.hpp

   1 #ifndef __SURFACE_TEXTURE_HPP__
   2 #define __SURFACE_TEXTURE_HPP__
   3
   4 #include <string>
   5 #include "texture.hpp"
   6
   7 class ImageTexture : public Texture
   8 {
   9 private:
  10   std::string filename;
  11   float image_width;
  12   float image_height;
  13   int refcount;
  14
  15 public:
  16   float get_image_width() const
  17   {
  18     return image_width;
  19   }
  20
  21   float get_image_height() const
  22   {
  23     return image_height;
  24   }
  25
  26   float get_uv_right() const
  27   {
  28     return image_width / static_cast<float> (get_width());
  29   }
  30
  31   float get_uv_bottom() const
  32   {
  33     return image_height / static_cast<float> (get_height());
  34   }
  35
  36   void ref()
  37   {
  38     refcount++;
  39   }
  40
  41   void unref()
  42   {
  43     assert(refcount > 0);
  44     refcount--;
  45     if(refcount == 0)
  46       release();
  47   }
  48
  49 private:
  50   friend class TextureManager;
  51
  52   ImageTexture(SDL_Surface* surface);
  53   virtual ~ImageTexture();
  54
  55   void release();
  56 };
  57
  58 #endif
  59