/*************************************************************************/
/*  canvas_texture_storage.h                                             */
/*************************************************************************/
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/*************************************************************************/

#ifndef CANVAS_TEXTURE_STORAGE_GLES3_H
#define CANVAS_TEXTURE_STORAGE_GLES3_H

#ifdef GLES3_ENABLED

#include "core/templates/rid_owner.h"
#include "servers/rendering/storage/canvas_texture_storage.h"

namespace GLES3 {

struct CanvasTexture {
	RID diffuse;
	RID normal_map;
	RID specular;
	Color specular_color = Color(1, 1, 1, 1);
	float shininess = 1.0;

	RS::CanvasItemTextureFilter texture_filter = RS::CANVAS_ITEM_TEXTURE_FILTER_DEFAULT;
	RS::CanvasItemTextureRepeat texture_repeat = RS::CANVAS_ITEM_TEXTURE_REPEAT_DEFAULT;

	Size2i size_cache = Size2i(1, 1);
	bool use_normal_cache = false;
	bool use_specular_cache = false;
	bool cleared_cache = true;
};

class CanvasTextureStorage : public RendererCanvasTextureStorage {
private:
	static CanvasTextureStorage *singleton;

	RID_Owner<CanvasTexture, true> canvas_texture_owner;

public:
	static CanvasTextureStorage *get_singleton();

	CanvasTextureStorage();
	virtual ~CanvasTextureStorage();

	CanvasTexture *get_canvas_texture(RID p_rid) { return canvas_texture_owner.get_or_null(p_rid); };
	bool owns_canvas_texture(RID p_rid) { return canvas_texture_owner.owns(p_rid); };

	virtual RID canvas_texture_allocate() override;
	virtual void canvas_texture_initialize(RID p_rid) override;
	virtual void canvas_texture_free(RID p_rid) override;

	virtual void canvas_texture_set_channel(RID p_canvas_texture, RS::CanvasTextureChannel p_channel, RID p_texture) override;
	virtual void canvas_texture_set_shading_parameters(RID p_canvas_texture, const Color &p_base_color, float p_shininess) override;

	virtual void canvas_texture_set_texture_filter(RID p_item, RS::CanvasItemTextureFilter p_filter) override;
	virtual void canvas_texture_set_texture_repeat(RID p_item, RS::CanvasItemTextureRepeat p_repeat) override;
};

} // namespace GLES3

#endif // !GLES3_ENABLED

#endif // !CANVAS_TEXTURE_STORAGE_GLES3_H