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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
*/
#include "COM_MovieDistortionOperation.h"
extern "C" {
#include "BKE_tracking.h"
#include "BKE_movieclip.h"
#include "BLI_linklist.h"
}
vector<DistortionCache *> s_cache;
void deintializeDistortionCache(void)
{
while (s_cache.size() > 0) {
DistortionCache * cache = s_cache.back();
s_cache.pop_back();
delete cache;
}
}
MovieDistortionOperation::MovieDistortionOperation(bool distortion) : NodeOperation()
{
this->addInputSocket(COM_DT_COLOR);
this->addOutputSocket(COM_DT_COLOR);
this->setResolutionInputSocketIndex(0);
this->m_inputOperation = NULL;
this->m_movieClip = NULL;
this->m_cache = NULL;
this->m_distortion = distortion;
}
void MovieDistortionOperation::initExecution()
{
this->m_inputOperation = this->getInputSocketReader(0);
if (this->m_movieClip) {
MovieClipUser clipUser = {0};
int calibration_width, calibration_height;
BKE_movieclip_user_set_frame(&clipUser, this->m_framenumber);
BKE_movieclip_get_size(this->m_movieClip, &clipUser, &calibration_width, &calibration_height);
for (unsigned int i = 0; i < s_cache.size(); i++) {
DistortionCache *c = (DistortionCache *)s_cache[i];
if (c->isCacheFor(this->m_movieClip, this->m_width, this->m_height,
calibration_width, calibration_height, this->m_distortion))
{
this->m_cache = c;
this->m_cache->updateLastUsage();
return;
}
}
DistortionCache *newC = new DistortionCache(this->m_movieClip, this->m_width, this->m_height,
calibration_width, calibration_height, this->m_distortion);
s_cache.push_back(newC);
this->m_cache = newC;
}
else {
this->m_cache = NULL;
}
}
void MovieDistortionOperation::deinitExecution()
{
this->m_inputOperation = NULL;
this->m_movieClip = NULL;
while (s_cache.size() > COM_DISTORTIONCACHE_MAXSIZE) {
double minTime = PIL_check_seconds_timer();
vector<DistortionCache*>::iterator minTimeIterator = s_cache.begin();
for (vector<DistortionCache*>::iterator it = s_cache.begin(); it < s_cache.end(); it ++) {
DistortionCache * cache = *it;
if (cache->getTimeLastUsage() < minTime) {
minTime = cache->getTimeLastUsage();
minTimeIterator = it;
}
}
s_cache.erase(minTimeIterator);
}
}
void MovieDistortionOperation::executePixel(float output[4], float x, float y, PixelSampler sampler)
{
if (this->m_cache != NULL) {
float u, v;
this->m_cache->getUV(&this->m_movieClip->tracking, x, y, &u, &v);
this->m_inputOperation->read(output, u, v, COM_PS_BILINEAR);
}
else {
this->m_inputOperation->read(output, x, y, COM_PS_BILINEAR);
}
}
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