modelviewer-libretro/glsym.cpp

#include "gl.hpp"

namespace GL
{
   bool dead_state;

   static SymMap map;
   SymMap& symbol_map()
   {
      return map;
   }

   void init_symbol_map()
   {
      map.clear();

      // On Windows, you cannot lookup these symbols ... <_<
      struct mapper { const char* sym; retro_proc_address_t proc; };
#define _D(sym) { #sym, reinterpret_cast<retro_proc_address_t>(sym) }
      static const mapper bind_map[] = {
         _D(glEnable),
         _D(glDisable),
         _D(glBlendFunc),
         _D(glClearColor),
         _D(glTexImage2D),
         _D(glViewport),
         _D(glClear),
         _D(glTexParameteri),
         _D(glDeleteTextures),
         _D(glGenTextures),
         _D(glBindTexture),
         _D(glDrawArrays),
         _D(glGetError),
         _D(glFrontFace),
      };
#undef _D

      for (unsigned i = 0; i < sizeof(bind_map) / sizeof(bind_map[0]); i++)
         map[bind_map[i].sym] = bind_map[i].proc;
   }

   static retro_hw_get_proc_address_t proc;
   void set_function_cb(retro_hw_get_proc_address_t proc_)
   {
      proc = proc_;
   }

   retro_proc_address_t get_symbol(const std::string& str)
   {
      return proc(str.c_str());
   }
}