/**************************************************************************/
/*  debug_effects.h                                                       */
/**************************************************************************/
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/*                             GODOT ENGINE                               */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
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#ifndef DEBUG_EFFECTS_RD_H
#define DEBUG_EFFECTS_RD_H

#include "servers/rendering/renderer_rd/pipeline_cache_rd.h"
#include "servers/rendering/renderer_rd/shaders/effects/shadow_frustum.glsl.gen.h"
#include "servers/rendering/renderer_scene_render.h"

#include "servers/rendering_server.h"

namespace RendererRD {

class DebugEffects {
private:
	struct {
		RD::VertexFormatID vertex_format;
		RID vertex_buffer;
		RID vertex_array;

		RID index_buffer;
		RID index_array;

		RID lines_buffer;
		RID lines_array;
	} frustum;

	struct ShadowFrustumPushConstant {
		float mvp[16];
		float color[4];
	};

	enum ShadowFrustumPipelines {
		SFP_TRANSPARENT,
		SFP_WIREFRAME,
		SFP_MAX
	};

	struct {
		ShadowFrustumShaderRD shader;
		RID shader_version;
		PipelineCacheRD pipelines[SFP_MAX];
	} shadow_frustum;

	void _create_frustum_arrays();

protected:
public:
	DebugEffects();
	~DebugEffects();

	void draw_shadow_frustum(RID p_light, const Projection &p_cam_projection, const Transform3D &p_cam_transform, RID p_dest_fb, const Rect2 p_rect);
};

} // namespace RendererRD

#endif // DEBUG_EFFECTS_RD_H