flavors/gl/source/texturestate.h

   1 #ifndef TEXTURESTATE_H_
   2 #define TEXTURESTATE_H_
   3
   4 #include <string>
   5 #include <vector>
   6 #include "opengl.h"
   7 #include "autoconstptr.h"
   8
   9 struct TexImageState
  10 {
  11         unsigned width;
  12         unsigned height;
  13         unsigned depth;
  14         GLenum internal_format;
  15
  16         TexImageState();
  17
  18         void set_1d(GLenum, unsigned);
  19         void set_2d(GLenum, unsigned, unsigned);
  20         void set_3d(GLenum, unsigned, unsigned, unsigned);
  21         std::string describe() const;
  22 };
  23
  24 extern GLenum texture_cube_faces[6];
  25
  26 struct TextureState
  27 {
  28         unsigned id;
  29         GLenum target;
  30         std::vector<TexImageState> images;
  31         GLenum min_filter;
  32         GLenum mag_filter;
  33         GLenum wrap_s;
  34         GLenum wrap_t;
  35         GLenum wrap_r;
  36         GLenum compare_mode;
  37         GLenum compare_func;
  38         bool generate_mipmap;
  39
  40         TextureState();
  41
  42         TexImageState &get_image(unsigned);
  43         void set_image_1d(unsigned, GLenum, unsigned);
  44         void set_image_2d(unsigned, GLenum, unsigned, unsigned);
  45         void set_face_image_2d(GLenum, unsigned, GLenum, unsigned, unsigned);
  46         void set_image_3d(unsigned, GLenum, unsigned, unsigned, unsigned);
  47         void create_mipmaps(unsigned = 0);
  48         void set_parameter(GLenum, const int *);
  49         std::string describe() const;
  50 };
  51
  52 struct TexUnitState
  53 {
  54         struct Binding
  55         {
  56                 bool enabled;
  57                 AutoConstPtr<TextureState> current;
  58
  59                 Binding();
  60                 std::string describe() const;
  61         };
  62
  63         Binding binding_1d;
  64         Binding binding_2d;
  65         Binding binding_3d;
  66         Binding binding_cube;
  67
  68         Binding *get_binding(GLenum);
  69         const Binding *get_binding(GLenum) const;
  70         void set_current_texture(GLenum, TextureState *);
  71         TextureState *get_current_texture(GLenum);
  72         const TextureState *get_current_texture(GLenum) const;
  73         bool is_enabled(GLenum) const;
  74         std::string describe_binding(GLenum) const;
  75 };
  76
  77 #endif