source/render/texturing.h

   1 #ifndef MSP_GL_TEXTURING_H_
   2 #define MSP_GL_TEXTURING_H_
   3
   4 #include <vector>
   5 #include "bindable.h"
   6
   7 namespace Msp {
   8 namespace GL {
   9
  10 class Texture;
  11
  12 class Texturing: public Bindable<Texturing>
  13 {
  14 private:
  15         struct Attachment
  16         {
  17                 unsigned unit;
  18                 const Texture *texture;
  19                 const Sampler *sampler;
  20
  21                 Attachment(unsigned, const Texture *, const Sampler *);
  22         };
  23
  24         std::vector<Attachment> attachments;
  25
  26 public:
  27         ~Texturing();
  28
  29         int find_free_unit(const std::string & = std::string()) const;
  30         void attach(unsigned, const Texture &, const Sampler * = 0);
  31         void attach(unsigned, const Sampler &);
  32         void detach(unsigned);
  33 private:
  34         void set_attachment(unsigned, const Texture *, const Sampler *);
  35 public:
  36         const Texture *get_attached_texture(unsigned) const;
  37         const Sampler *get_attached_sampler(unsigned) const;
  38
  39         void bind() const;
  40
  41         static void unbind();
  42
  43 private:
  44         void bind_attachment(const Attachment &) const;
  45         static void unbind_attachment(unsigned);
  46 };
  47
  48 } // namespace GL
  49 } // namespace Msp;
  50
  51 #endif