/**************************************************************************/
/*  forward_id_storage.h                                                  */
/**************************************************************************/
/*                         This file is part of:                          */
/*                             GODOT ENGINE                               */
/*                        https://godotengine.org                         */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
/*                                                                        */
/* Permission is hereby granted, free of charge, to any person obtaining  */
/* a copy of this software and associated documentation files (the        */
/* "Software"), to deal in the Software without restriction, including    */
/* without limitation the rights to use, copy, modify, merge, publish,    */
/* distribute, sublicense, and/or sell copies of the Software, and to     */
/* permit persons to whom the Software is furnished to do so, subject to  */
/* the following conditions:                                              */
/*                                                                        */
/* The above copyright notice and this permission notice shall be         */
/* included in all copies or substantial portions of the Software.        */
/*                                                                        */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY   */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
/**************************************************************************/

#pragma once

#include <cstdint>

class RendererSceneRenderRD;

namespace RendererRD {

typedef int32_t ForwardID;

enum ForwardIDType {
	FORWARD_ID_TYPE_OMNI_LIGHT,
	FORWARD_ID_TYPE_SPOT_LIGHT,
	FORWARD_ID_TYPE_REFLECTION_PROBE,
	FORWARD_ID_TYPE_DECAL,
	FORWARD_ID_MAX,
};

class ForwardIDStorage {
private:
	static inline ForwardIDStorage *singleton = nullptr;

public:
	static ForwardIDStorage *get_singleton() { return singleton; }

	ForwardIDStorage() { singleton = this; }
	virtual ~ForwardIDStorage() { singleton = nullptr; }

	virtual RendererRD::ForwardID allocate_forward_id(RendererRD::ForwardIDType p_type) { return -1; }
	virtual void free_forward_id(RendererRD::ForwardIDType p_type, RendererRD::ForwardID p_id) {}
	virtual void map_forward_id(RendererRD::ForwardIDType p_type, RendererRD::ForwardID p_id, uint32_t p_index, uint64_t p_last_pass) {}
	virtual bool uses_forward_ids() const { return false; }
};

} // namespace RendererRD
