source/pixelstore.h

   1 #ifndef MSP_GL_PIXELSTORE_H_
   2 #define MSP_GL_PIXELSTORE_H_
   3
   4 #include <msp/graphics/image.h>
   5 #include "bindable.h"
   6
   7 namespace Msp {
   8 namespace GL {
   9
  10 class PixelStore: public BindableWithDefault<PixelStore>
  11 {
  12 private:
  13         enum ParameterMask
  14         {
  15                 SIZE,
  16                 ORIGIN,
  17                 ALIGNMENT
  18         };
  19
  20         unsigned row_length;
  21         unsigned image_height;
  22         unsigned skip_pixels;
  23         unsigned skip_rows;
  24         unsigned skip_images;
  25         unsigned alignment;
  26
  27 public:
  28         PixelStore();
  29
  30         static PixelStore from_image(const Graphics::Image &);
  31
  32 private:
  33         void update_parameter(int) const;
  34
  35 public:
  36         void set_canvas_size(unsigned, unsigned);
  37         void set_origin(unsigned, unsigned, unsigned);
  38         void set_alignment(unsigned);
  39
  40         void bind() const;
  41 };
  42
  43 } // namespace GL
  44 } // namespace Msp
  45
  46 #endif