blender-archive/source/blender/compositor/operations/COM_PlaneDistortCommonOperation.h

/*
 * 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.
 *
 * Copyright 2013, Blender Foundation.
 */

#ifndef __COM_PLANEDISTORTCOMMONOPERATION_H__
#define __COM_PLANEDISTORTCOMMONOPERATION_H__

#include <string.h>

#include "COM_NodeOperation.h"

#include "DNA_movieclip_types.h"
#include "DNA_tracking_types.h"

#include "BLI_listbase.h"
#include "BLI_string.h"

#define PLANE_DISTORT_MAX_SAMPLES 64

class PlaneDistortWarpImageOperation : public NodeOperation {
protected:
	struct MotionSample {
		float frameSpaceCorners[4][2];  /* Corners coordinates in pixel space. */
		float perspectiveMatrix[3][3];
	};
	SocketReader *m_pixelReader;
	MotionSample m_samples[PLANE_DISTORT_MAX_SAMPLES];
	int m_motion_blur_samples;
	float m_motion_blur_shutter;

public:
	PlaneDistortWarpImageOperation();

	void calculateCorners(const float corners[4][2],
	                      bool normalized,
	                      int sample);

	void initExecution();
	void deinitExecution();

	void executePixelSampled(float output[4], float x, float y, PixelSampler sampler);

	bool determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output);

	void setMotionBlurSamples(int samples) {
		BLI_assert(samples <= PLANE_DISTORT_MAX_SAMPLES);
		this->m_motion_blur_samples = samples;
	}
	void setMotionBlurShutter(float shutter) {
		this->m_motion_blur_shutter = shutter;
	}
};


class PlaneDistortMaskOperation : public NodeOperation {
protected:
	struct MotionSample {
		float frameSpaceCorners[4][2];  /* Corners coordinates in pixel space. */
	};
	int m_osa;
	MotionSample m_samples[PLANE_DISTORT_MAX_SAMPLES];
	float m_jitter[32][2];
	int m_motion_blur_samples;
	float m_motion_blur_shutter;

public:
	PlaneDistortMaskOperation();

	void calculateCorners(const float corners[4][2],
	                      bool normalized,
	                      int sample);

	void initExecution();

	void executePixelSampled(float output[4], float x, float y, PixelSampler sampler);

	void setMotionBlurSamples(int samples) {
		BLI_assert(samples <= PLANE_DISTORT_MAX_SAMPLES);
		this->m_motion_blur_samples = samples;
	}
	void setMotionBlurShutter(float shutter) {
		this->m_motion_blur_shutter = shutter;
	}
};

#endif