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/*
* Copyright 2011, Blender Foundation.
*
* 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.
*
* Contributor:
* Jeroen Bakker
* Monique Dewanchand
*/
#ifndef _COM_MovieDistortionOperation_h_
#define _COM_MovieDistortionOperation_h_
#include "COM_NodeOperation.h"
#include "DNA_movieclip_types.h"
extern "C" {
#include "BKE_tracking.h"
}
class DistortionCache {
private:
float m_k1;
float m_k2;
float m_k3;
float m_principal_x;
float m_principal_y;
float m_pixel_aspect;
int m_width;
int m_height;
int m_calibration_width;
int m_calibration_height;
bool m_inverted;
float *m_buffer;
int *m_bufferCalculated;
public:
DistortionCache(MovieClip *movieclip, int width, int height, int calibration_width, int calibration_height, bool inverted) {
this->m_k1 = movieclip->tracking.camera.k1;
this->m_k2 = movieclip->tracking.camera.k2;
this->m_k3 = movieclip->tracking.camera.k3;
this->m_principal_x = movieclip->tracking.camera.principal[0];
this->m_principal_y = movieclip->tracking.camera.principal[1];
this->m_pixel_aspect = movieclip->tracking.camera.pixel_aspect;
this->m_width = width;
this->m_height = height;
this->m_calibration_width = calibration_width;
this->m_calibration_height = calibration_height;
this->m_inverted = inverted;
this->m_bufferCalculated = new int[this->m_width * this->m_height];
this->m_buffer = new float[this->m_width * this->m_height * 2];
for (int i = 0; i < this->m_width * this->m_height; i++) {
this->m_bufferCalculated[i] = 0;
}
}
bool isCacheFor(MovieClip *movieclip, int width, int height, int calibration_width, int claibration_height, bool inverted) {
return this->m_k1 == movieclip->tracking.camera.k1 &&
this->m_k2 == movieclip->tracking.camera.k2 &&
this->m_k3 == movieclip->tracking.camera.k3 &&
this->m_principal_x == movieclip->tracking.camera.principal[0] &&
this->m_principal_y == movieclip->tracking.camera.principal[1] &&
this->m_pixel_aspect == movieclip->tracking.camera.pixel_aspect &&
this->m_inverted == inverted &&
this->m_width == width &&
this->m_height == height &&
this->m_calibration_width == this->m_calibration_width &&
this->m_calibration_height == this->m_calibration_height;
}
void getUV(MovieTracking *trackingData, int x, int y, float *u, float *v)
{
if (x < 0 || x >= this->m_width || y < 0 || y >= this->m_height) {
*u = x;
*v = y;
}
else {
int offset = y * this->m_width + x;
int offset2 = offset * 2;
if (!this->m_bufferCalculated[offset]) {
//float overscan = 0.0f;
float w = (float)this->m_width /* / (1 + overscan) */;
float h = (float)this->m_height /* / (1 + overscan) */;
float aspx = (float)w / this->m_calibration_width;
float aspy = (float)h / this->m_calibration_height;
float in[2];
float out[2];
in[0] = (x /* - 0.5 * overscan * w */) / aspx;
in[1] = (y /* - 0.5 * overscan * h */) / aspy / this->m_pixel_aspect;
if (this->m_inverted) {
BKE_tracking_undistort_v2(trackingData, in, out);
}
else {
BKE_tracking_distort_v2(trackingData, in, out);
}
this->m_buffer[offset2] = out[0] * aspx /* + 0.5 * overscan * w */;
this->m_buffer[offset2 + 1] = (out[1] * aspy /* + 0.5 * overscan * h */) * this->m_pixel_aspect;
this->m_bufferCalculated[offset] = 1;
}
*u = this->m_buffer[offset2];
*v = this->m_buffer[offset2 + 1];
}
}
};
class MovieDistortionOperation : public NodeOperation {
private:
DistortionCache *m_cache;
SocketReader *m_inputOperation;
MovieClip *m_movieClip;
protected:
bool m_distortion;
int m_framenumber;
public:
MovieDistortionOperation(bool distortion);
bool determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output);
void executePixel(float *color, float x, float y, PixelSampler sampler, MemoryBuffer * inputBuffers[]);
void initExecution();
void deinitExecution();
void setMovieClip(MovieClip *clip) { this->m_movieClip = clip; }
void setFramenumber(int framenumber) { this->m_framenumber = framenumber; }
};
#endif
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