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/*  render_scene_buffers_gles3.h                                         */
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#ifndef RENDER_SCENE_BUFFERS_GLES3_H
#define RENDER_SCENE_BUFFERS_GLES3_H

#ifdef GLES3_ENABLED

#include "servers/rendering/storage/render_scene_buffers.h"

#include "platform_config.h"
#ifndef OPENGL_INCLUDE_H
#include <GLES3/gl3.h>
#else
#include OPENGL_INCLUDE_H
#endif

class RenderSceneBuffersGLES3 : public RenderSceneBuffers {
	GDCLASS(RenderSceneBuffersGLES3, RenderSceneBuffers);

public:
	// Original implementation, need to investigate which ones we'll keep like this and what we'll change...

	int internal_width = 0;
	int internal_height = 0;
	int width = 0;
	int height = 0;
	//float fsr_sharpness = 0.2f;
	RS::ViewportMSAA msaa = RS::VIEWPORT_MSAA_DISABLED;
	//RS::ViewportScreenSpaceAA screen_space_aa = RS::VIEWPORT_SCREEN_SPACE_AA_DISABLED;
	//bool use_debanding = false;
	uint32_t view_count = 1;

	bool is_transparent = false;

	RID render_target;
	GLuint internal_texture = 0; // Used for rendering when post effects are enabled
	GLuint depth_texture = 0; // Main depth texture
	GLuint framebuffer = 0; // Main framebuffer, contains internal_texture and depth_texture or render_target->color and depth_texture

	//built-in textures used for ping pong image processing and blurring
	struct Blur {
		RID texture;

		struct Mipmap {
			RID texture;
			int width;
			int height;
			GLuint fbo;
		};

		Vector<Mipmap> mipmaps;
	};

	Blur blur[2]; //the second one starts from the first mipmap

private:
public:
	virtual ~RenderSceneBuffersGLES3();
	virtual void configure(RID p_render_target, const Size2i p_internal_size, const Size2i p_target_size, float p_fsr_sharpness, float p_texture_mipmap_bias, RS::ViewportMSAA p_msaa, RenderingServer::ViewportScreenSpaceAA p_screen_space_aa, bool p_use_taa, bool p_use_debanding, uint32_t p_view_count) override;

	virtual void set_fsr_sharpness(float p_fsr_sharpness) override{};
	virtual void set_texture_mipmap_bias(float p_texture_mipmap_bias) override{};
	virtual void set_use_debanding(bool p_use_debanding) override{};

	void free_render_buffer_data();
};

#endif // GLES3_ENABLED

#endif // RENDER_SCENE_BUFFERS_GLES3_H