/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 */

#ifndef BLADERUNNER_SLICE_RENDERER_H
#define BLADERUNNER_SLICE_RENDERER_H

#include "bladerunner/color.h"
#include "bladerunner/vector.h"
#include "bladerunner/view.h"
#include "bladerunner/matrix.h"

#include "graphics/surface.h"

namespace Common {
	class MemoryReadStream;
}

namespace BladeRunner {

class BladeRunnerEngine;
class Lights;
class SetEffects;

class SliceRenderer {
	BladeRunnerEngine *_vm;

	int       _animation;
	int       _frame;
	Vector3   _position;
	float     _facing;
	float     _scale;

	View      _view;
	Lights     *_lights;
	SetEffects *_setEffects;

	void       *_sliceFramePtr;

	// Animation frame data
	Vector2 _frameScale;
	float   _frameBottomZ;
	Vector2 _framePos;
	float   _frameSliceHeight;
	uint32  _framePaletteIndex;
	uint32  _frameSliceCount;

	Matrix3x2 _field_109E;
	Vector3   _startScreenVector;
	Vector3   _endScreenVector;
	float     _startSlice;
	float     _endSlice;
	int       _minX;
	int       _maxX;
	int       _minY;
	int       _maxY;

	int _m11lookup[256];
	int _m12lookup[256];
	int _m13;
	int _m21lookup[256];
	int _m22lookup[256];
	int _m23;

	bool _animationsShadowEnabled[997];

	Color _setEffectColor;
	Color _lightsColor;

	Graphics::PixelFormat _pixelFormat;

	Matrix3x2 calculateFacingRotationMatrix();
	void drawSlice(int slice, uint16 *frameLinePtr, uint16 *zbufLinePtr);

public:
	SliceRenderer(BladeRunnerEngine *vm);
	~SliceRenderer();

	void setView(const View &view);
	void setLights(Lights *lights);
	void setSetEffects(SetEffects *setEffects);

	void setupFrame(int animation, int frame, Vector3 position, float facing, float scale = 1.0f);
	void calculateBoundingRect();

	//void drawFrame(Graphics::Surface &surface, uint16 *zbuffer);
	void drawFrame(int animationId, int animationFrame, Vector3 position, float facing, float scale, Graphics::Surface &surface, uint16 *zbuffer);

	void preload(int animationId);

	void disableShadows(int *animationsIdsList, int listSize);

private:
	class SliceRendererLights {
		Lights *_lights;
		Color   _colors[20];
		float   _hmm[20];
		float   _hmm2[20];
		int     _hmm3;
	public: 
		Color   _finalColor;

	public:
		SliceRendererLights(Lights *lights);

		void calculateColorBase(Vector3 position1, Vector3 position2, float height);
		void calculateColorSlice(Vector3 position);
	};
};

} // End of namespace BladeRunner

#endif