/*
**  ClanLib SDK
**  Copyright (c) 1997-2020 The ClanLib Team
**
**  This software is provided 'as-is', without any express or implied
**  warranty.  In no event will the authors be held liable for any damages
**  arising from the use of this software.
**
**  Permission is granted to anyone to use this software for any purpose,
**  including commercial applications, and to alter it and redistribute it
**  freely, subject to the following restrictions:
**
**  1. The origin of this software must not be misrepresented; you must not
**     claim that you wrote the original software. If you use this software
**     in a product, an acknowledgment in the product documentation would be
**     appreciated but is not required.
**  2. Altered source versions must be plainly marked as such, and must not be
**     misrepresented as being the original software.
**  3. This notice may not be removed or altered from any source distribution.
**
**  Note: Some of the libraries ClanLib may link to may have additional
**  requirements or restrictions.
**
**  File Author(s):
**
**    Magnus Norddahl
**    Mark Page
*/

#pragma once

#include "API/Display/TargetProviders/display_target_provider.h"
#include "API/GL/opengl_context_description.h"
#include "API/Display/Render/blend_state_description.h"
#include "API/Display/TargetProviders/graphic_context_provider.h"
#include <map>

namespace clan
{
	class OpenGLBlendStateProvider : public BlendStateProvider
	{
	public:
		OpenGLBlendStateProvider(const BlendStateDescription &desc) : desc(desc.clone()) {}
		virtual ~OpenGLBlendStateProvider() {};

		BlendStateDescription desc;
	};

	class OpenGLBlendState
	{
	public:
		OpenGLBlendState();

		void set(const BlendStateDescription &new_state, const Vec4f &new_blend_color);
		void set(const OpenGLBlendState &new_state);
		void apply();

	private:
		BlendStateDescription desc;
		Vec4f blend_color;
		bool changed_desc;
		bool changed_blend_color;
	};
}
