/*************************************************************************/
/*  utilities.h                                                          */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                      https://godotengine.org                          */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md).   */
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/* distribute, sublicense, and/or sell copies of the Software, and to    */
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/* The above copyright notice and this permission notice shall be        */
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/*************************************************************************/

#ifndef UTILITIES_DUMMY_H
#define UTILITIES_DUMMY_H

#include "mesh_storage.h"
#include "servers/rendering/storage/utilities.h"
#include "texture_storage.h"

namespace RendererDummy {

class Utilities : public RendererUtilities {
private:
	static Utilities *singleton;

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

	Utilities();
	~Utilities();

	/* INSTANCES */

	virtual RS::InstanceType get_base_type(RID p_rid) const override {
		if (RendererDummy::MeshStorage::get_singleton()->owns_mesh(p_rid)) {
			return RS::INSTANCE_MESH;
		}
		return RS::INSTANCE_NONE;
	}

	virtual bool free(RID p_rid) override {
		if (RendererDummy::TextureStorage::get_singleton()->owns_texture(p_rid)) {
			RendererDummy::TextureStorage::get_singleton()->texture_free(p_rid);
			return true;
		} else if (RendererDummy::MeshStorage::get_singleton()->owns_mesh(p_rid)) {
			RendererDummy::MeshStorage::get_singleton()->mesh_free(p_rid);
			return true;
		}
		return false;
	}

	/* DEPENDENCIES */

	virtual void base_update_dependency(RID p_base, DependencyTracker *p_instance) override {}

	/* VISIBILITY NOTIFIER */

	virtual RID visibility_notifier_allocate() override { return RID(); }
	virtual void visibility_notifier_initialize(RID p_notifier) override {}
	virtual void visibility_notifier_free(RID p_notifier) override {}

	virtual void visibility_notifier_set_aabb(RID p_notifier, const AABB &p_aabb) override {}
	virtual void visibility_notifier_set_callbacks(RID p_notifier, const Callable &p_enter_callbable, const Callable &p_exit_callable) override {}

	virtual AABB visibility_notifier_get_aabb(RID p_notifier) const override { return AABB(); }
	virtual void visibility_notifier_call(RID p_notifier, bool p_enter, bool p_deferred) override {}

	/* TIMING */

	virtual void capture_timestamps_begin() override {}
	virtual void capture_timestamp(const String &p_name) override {}
	virtual uint32_t get_captured_timestamps_count() const override { return 0; }
	virtual uint64_t get_captured_timestamps_frame() const override { return 0; }
	virtual uint64_t get_captured_timestamp_gpu_time(uint32_t p_index) const override { return 0; }
	virtual uint64_t get_captured_timestamp_cpu_time(uint32_t p_index) const override { return 0; }
	virtual String get_captured_timestamp_name(uint32_t p_index) const override { return String(); }

	/* MISC */

	virtual void update_dirty_resources() override {}
	virtual void set_debug_generate_wireframes(bool p_generate) override {}

	virtual bool has_os_feature(const String &p_feature) const override {
		return p_feature == "rgtc" || p_feature == "bptc" || p_feature == "s3tc" || p_feature == "etc" || p_feature == "etc2";
	}

	virtual void update_memory_info() override {}

	virtual uint64_t get_rendering_info(RS::RenderingInfo p_info) override { return 0; }
	virtual String get_video_adapter_name() const override { return String(); }
	virtual String get_video_adapter_vendor() const override { return String(); }
	virtual RenderingDevice::DeviceType get_video_adapter_type() const override { return RenderingDevice::DeviceType::DEVICE_TYPE_OTHER; }
	virtual String get_video_adapter_api_version() const override { return String(); }
};

} // namespace RendererDummy

#endif // UTILITIES_DUMMY_H