source/program.h

   1 #ifndef MSP_GL_PROGRAM_H_
   2 #define MSP_GL_PROGRAM_H_
   3
   4 #include <list>
   5 #include <string>
   6 #include <msp/datafile/objectloader.h>
   7 #include "bindable.h"
   8 #include "gl.h"
   9
  10 namespace Msp {
  11 namespace GL {
  12
  13 class Shader;
  14
  15 class Program: public Bindable<Program>
  16 {
  17 public:
  18         class Loader: public DataFile::ObjectLoader<Program>
  19         {
  20         public:
  21                 Loader(Program &);
  22
  23         private:
  24                 virtual void finish();
  25
  26                 void attribute(unsigned, const std::string &);
  27                 void fragment_shader(const std::string &);
  28                 void standard();
  29                 void vertex_shader(const std::string &);
  30         };
  31
  32         struct StandardFeatures
  33         {
  34                 class Loader: public DataFile::ObjectLoader<StandardFeatures>
  35                 {
  36                 public:
  37                         Loader(StandardFeatures &);
  38                 };
  39
  40                 bool texture;
  41                 bool material;
  42                 bool lighting;
  43                 bool specular;
  44                 bool normalmap;
  45                 bool shadow;
  46                 bool reflection;
  47                 bool transform;
  48
  49                 StandardFeatures();
  50
  51                 std::string create_flags() const;
  52         };
  53
  54         struct UniformInfo
  55         {
  56                 std::string name;
  57                 int location;
  58                 int size;
  59                 GLenum type;
  60         };
  61
  62         typedef std::list<Shader *> ShaderList;
  63         typedef std::map<std::string, UniformInfo> UniformMap;
  64
  65 private:
  66         unsigned id;
  67         ShaderList shaders;
  68         ShaderList owned_data;
  69         bool linked;
  70         UniformMap uniforms;
  71         unsigned uniform_layout_hash;
  72
  73 public:
  74         Program();
  75         Program(const StandardFeatures &);
  76         Program(const std::string &, const std::string &);
  77 private:
  78         void init();
  79 public:
  80         virtual ~Program();
  81
  82         void attach_shader(Shader &shader);
  83         void attach_shader_owned(Shader *shader);
  84         void detach_shader(Shader &shader);
  85         void add_standard_shaders(const StandardFeatures &);
  86 private:
  87         static std::string process_standard_source(const char **, const std::string &);
  88 public:
  89         const ShaderList &get_shaders() const { return shaders; }
  90
  91         void bind_attribute(unsigned, const std::string &);
  92
  93         void link();
  94         bool is_linked() const { return linked; }
  95         std::string get_info_log() const;
  96
  97         unsigned get_uniform_layout_hash() const { return uniform_layout_hash; }
  98         int get_uniform_location(const std::string &) const;
  99
 100         void bind() const;
 101         static void unbind();
 102 };
 103
 104 } // namespace GL
 105 } // namespace Msp
 106
 107 #endif