#ifndef __R_RENDERER_H
#define __R_RENDERER_H

#include <stdio.h>

struct FRenderer;
extern FRenderer *Renderer;
class FSerializer;
class FTexture;
class AActor;
class player_t;
struct sector_t;
class FCanvasTexture;
class FileWriter;

struct FRenderer
{
	FRenderer()
	{
		Renderer = this;
	}

	virtual ~FRenderer()
	{
		Renderer = NULL;
	}

	// precache one texture
	virtual void Precache(uint8_t *texhitlist, TMap<PClassActor*, bool> &actorhitlist) = 0;

	// render 3D view
	virtual void RenderView(player_t *player) = 0;

	// Remap voxel palette
	virtual void RemapVoxels() {}

	// renders view to a savegame picture
	virtual void WriteSavePic (player_t *player, FileWriter *file, int width, int height) = 0;

	// draws player sprites with hardware acceleration (only useful for software rendering)
	virtual void DrawRemainingPlayerSprites() {}

	// notify the renderer that serialization of the curent level is about to start/end
	virtual void StartSerialize(FSerializer &arc) {}
	virtual void EndSerialize(FSerializer &arc) {}

	virtual int GetMaxViewPitch(bool down) = 0;	// return value is in plain degrees

	virtual void OnModeSet () {}
	virtual void SetClearColor(int color) = 0;
	virtual void Init() = 0;
	virtual void RenderTextureView (FCanvasTexture *tex, AActor *viewpoint, double fov) = 0;
	virtual void PreprocessLevel() {}
	virtual void CleanLevelData() {}
	virtual bool RequireGLNodes() { return false; }

	virtual uint32_t GetCaps() { return 0; }
};


#endif