#include "../gl_funcs.h"
#include "log.h"
#include "internal.h"

#define X(type, name) \
type name = NULL

PLTF_GL_FUNCS(X)
#undef X

#define X(type, name) \
name = (type) pltf_gl_function_load(#name)

void* pltf_gl_function_load(const char* name) {
    void* gl_func = (void*) wglGetProcAddress(name);
    if (gl_func == NULL || gl_func == (void*) 1 || gl_func == (void*) 2 || gl_func == (void*) 3 || gl_func == (void*) -1) {
        void* gl32_func = (void*) GetProcAddress(opengl_module, name);
        if (gl32_func == NULL || gl32_func == (void*) 1 || gl32_func == (void*) 2 || gl32_func == (void*) 3 || gl32_func == (void*) -1) {
            LOG_ERRORF("wglGetProcAddress failed to load gl function %s. Returned %p\n", name, gl_func);
            LOG_ERRORF("GetProcAddress    failed to load gl function %s. Returned %p\n", name, gl32_func);
            return NULL;
        }

        return gl32_func;
    }

    return gl_func;
}

void pltf_gl_funcs_load() {
    PLTF_GL_FUNCS(X)
}