// Copyright (C) 2023 Vitaliy Lobachevskiy
// Copyright (C) 2015 Patryk Nadrowski
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h

#pragma once

#include "irrTypes.h"
// even though we have mt_opengl.h our driver code still uses GL_* constants
#if defined(_IRR_COMPILE_WITH_WINDOWS_DEVICE_)
	#include <GL/gl.h>
	#include <GL/glext.h>
#elif defined(_IRR_COMPILE_WITH_OSX_DEVICE_)
	#include <OpenGL/gl.h>
	// not sure if this works without glext.h?
#elif defined(_IRR_COMPILE_WITH_SDL_DEVICE_) && !defined(_IRR_COMPILE_WITH_X11_DEVICE_)
	#include <SDL_video.h>
	#include <SDL_opengl.h>
#else
	#include <GL/gl.h>
	#include <GL/glext.h>
#endif

namespace irr
{
namespace video
{

	// Forward declarations.

	class COpenGLCoreFeature;

	template <class TOpenGLDriver>
	class COpenGLCoreTexture;

	template <class TOpenGLDriver, class TOpenGLTexture>
	class COpenGLCoreRenderTarget;

	template <class TOpenGLDriver, class TOpenGLTexture>
	class COpenGLCoreCacheHandler;

	class COpenGL3DriverBase;
	typedef COpenGLCoreTexture<COpenGL3DriverBase> COpenGL3Texture;
	typedef COpenGLCoreRenderTarget<COpenGL3DriverBase, COpenGL3Texture> COpenGL3RenderTarget;
	typedef COpenGLCoreCacheHandler<COpenGL3DriverBase, COpenGL3Texture> COpenGL3CacheHandler;

	enum class OpenGLSpec: u8 {
		Core,
		Compat,
		ES,
		// WebGL, // TODO
	};

	struct OpenGLVersion {
		OpenGLSpec Spec;
		u8 Major;
		u8 Minor;
		u8 Release;
	};

}
}