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https://github.com/libretro/scenewalker-libretro.git
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91 lines
2.2 KiB
C++
91 lines
2.2 KiB
C++
#ifndef GL_HPP__
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#define GL_HPP__
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#if defined(_WIN32) && !defined(_XBOX)
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#include <windows.h>
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#endif
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#define GL_GLEXT_PROTOTYPES
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#if defined(GLES)
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#ifdef IOS
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#include <OpenGLES/ES2/gl.h>
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#else
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#include <GLES2/gl2.h>
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#endif
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#elif defined(__APPLE__)
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#include <OpenGL/gl.h>
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#include <OpenGL/glext.h>
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#elif defined(__CELLOS_LV2__)
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#include <PSGL/psgl.h>
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#include <PSGL/psglu.h>
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#include <GLES/glext.h>
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extern void _jsEnableVertexAttribArrayNV(GLuint index);
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extern void _jsDisableVertexAttribArrayNV(GLuint index);
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extern void _jsVertexAttribPointerNV(GLuint index,
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GLint fsize, GLenum type,
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GLboolean normalized,
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GLsizei stride, const GLvoid* pointer);
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#define glEnableVertexAttribArray _jsEnableVertexAttribArrayNV
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#define glDisableVertexAttribArray _jsDisableVertexAttribArrayNV
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#define glVertexAttribPointer _jsVertexAttribPointerNV
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#define glGenerateMipmap glGenerateMipmapOES
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#define glBindFramebuffer glBindFramebufferOES
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#define GL_FRAMEBUFFER GL_FRAMEBUFFER_OES
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#else
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#include <GL/gl.h>
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#include <GL/glext.h>
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#endif
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#include <map>
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#include <stdio.h>
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#include <string>
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#include "libretro.h"
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#include "shared.hpp"
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#ifdef __GNUC__
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#define decltype(type) typeof(type)
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#endif
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#ifdef GLES
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#define SYM(sym) sym
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#else
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#define SYM(sym) (::GL::symbol<decltype(&sym)>(#sym))
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#endif
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namespace GL
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{
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// If true, GL context has been reset and all
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// objects are invalid. Do not free their resources
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// in destructors.
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extern bool dead_state;
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typedef std::map<std::string, retro_proc_address_t> SymMap;
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SymMap& symbol_map();
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void init_symbol_map();
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// Discover and cache GL symbols on-the-fly.
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// Avoids things like GLEW, and avoids typing out a billion symbol declarations.
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void set_function_cb(retro_hw_get_proc_address_t);
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retro_proc_address_t get_symbol(const std::string& str);
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template<typename Func>
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inline Func symbol(const std::string& sym)
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{
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std::map<std::string, retro_proc_address_t>& map = symbol_map();
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retro_proc_address_t func = map[sym];
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if (!func)
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{
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func = get_symbol(sym);
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if (!func)
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retro_stderr_print("Didn't find GL symbol: %s\n", sym.c_str());
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}
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return reinterpret_cast<Func>(func);
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}
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}
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#endif
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