src/video/image_texture.hpp

   1 #ifndef __SURFACE_TEXTURE_HPP__
   2 #define __SURFACE_TEXTURE_HPP__
   3
   4 #include <string>
   5 #include <assert.h>
   6 #include "texture.hpp"
   7
   8 class ImageTexture : public Texture
   9 {
  10 private:
  11   std::string filename;
  12   float image_width;
  13   float image_height;
  14   int refcount;
  15
  16 public:
  17   float get_image_width() const
  18   {
  19     return image_width;
  20   }
  21
  22   float get_image_height() const
  23   {
  24     return image_height;
  25   }
  26
  27   float get_uv_right() const
  28   {
  29     return image_width / static_cast<float> (get_width());
  30   }
  31
  32   float get_uv_bottom() const
  33   {
  34     return image_height / static_cast<float> (get_height());
  35   }
  36
  37   void ref()
  38   {
  39     refcount++;
  40   }
  41
  42   void unref()
  43   {
  44     assert(refcount > 0);
  45     refcount--;
  46     if(refcount == 0)
  47       release();
  48   }
  49
  50 private:
  51   friend class TextureManager;
  52
  53   ImageTexture(SDL_Surface* surface);
  54   virtual ~ImageTexture();
  55
  56   void release();
  57 };
  58
  59 #endif
  60