gl init

gl_init.c

union
{
	struct
	{
		PFNGLATTACHSHADERPROC AttachShader;
		PFNGLCOMPILESHADERPROC CompileShader;
		PFNGLCREATEPROGRAMPROC CreateProgram;
		PFNGLCREATESHADERPROC CreateShader;
		PFNGLDELETEPROGRAMPROC DeleteProgram;
		PFNGLDELETESHADERPROC DeleteShader;
		PFNGLLINKPROGRAMPROC LinkProgram;
		PFNGLUSEPROGRAMPROC UseProgram;
		PFNGLSHADERSOURCEPROC ShaderSource;
	};
	PROC ptr[GL_FUNC_COUNT];
} gl;

const char* g_glFuncNames[GL_FUNC_COUNT] =
{
	"glAttachShader",
	"glCompileShader",
	"glCreateProgram",
	"glCreateShader",
	"glDeleteProgram",
	"glDeleteShader",
	"glLinkProgram",
	"glUseProgram",
	"glShaderSource"
};

// Load GL functions
for(i=0; i<GL_FUNC_COUNT; i++)
{
	gl.ptr[i] = wglGetProcAddress(g_glFuncNames[i]);
}