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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_BlurBaseOperation.h"
#include "BLI_math.h"
extern "C" {
#include "RE_pipeline.h"
}
BlurBaseOperation::BlurBaseOperation(DataType data_type=COM_DT_COLOR) : NodeOperation()
{
this->addInputSocket(data_type);
this->addInputSocket(COM_DT_VALUE);
this->addOutputSocket(data_type);
this->setComplex(true);
this->m_inputProgram = NULL;
this->m_data = NULL;
this->m_size = 1.0f;
this->m_deleteData = false;
this->m_sizeavailable = false;
}
void BlurBaseOperation::initExecution()
{
this->m_inputProgram = this->getInputSocketReader(0);
this->m_inputSize = this->getInputSocketReader(1);
this->m_data->image_in_width = this->getWidth();
this->m_data->image_in_height = this->getHeight();
if (this->m_data->relative) {
switch (this->m_data->aspect) {
case CMP_NODE_BLUR_ASPECT_NONE:
this->m_data->sizex = (int)(this->m_data->percentx * 0.01f * this->m_data->image_in_width);
this->m_data->sizey = (int)(this->m_data->percenty * 0.01f * this->m_data->image_in_height);
break;
case CMP_NODE_BLUR_ASPECT_Y:
this->m_data->sizex = (int)(this->m_data->percentx * 0.01f * this->m_data->image_in_width);
this->m_data->sizey = (int)(this->m_data->percenty * 0.01f * this->m_data->image_in_width);
break;
case CMP_NODE_BLUR_ASPECT_X:
this->m_data->sizex = (int)(this->m_data->percentx * 0.01f * this->m_data->image_in_height);
this->m_data->sizey = (int)(this->m_data->percenty * 0.01f * this->m_data->image_in_height);
break;
}
}
QualityStepHelper::initExecution(COM_QH_MULTIPLY);
}
float *BlurBaseOperation::make_gausstab(int rad)
{
float *gausstab, sum, val;
int i, n;
n = 2 * rad + 1;
gausstab = new float[n];
sum = 0.0f;
for (i = -rad; i <= rad; i++) {
val = RE_filter_value(this->m_data->filtertype, (float)i / (float)rad);
sum += val;
gausstab[i + rad] = val;
}
sum = 1.0f / sum;
for (i = 0; i < n; i++)
gausstab[i] *= sum;
return gausstab;
}
/* normalized distance from the current (inverted so 1.0 is close and 0.0 is far)
* 'ease' is applied after, looks nicer */
float *BlurBaseOperation::make_dist_fac_inverse(int rad, int falloff)
{
float *dist_fac_invert, val;
int i, n;
n = 2 * rad + 1;
dist_fac_invert = new float[n];
for (i = -rad; i <= rad; i++) {
val = 1.0f - fabsf(((float)i / (float)rad));
/* keep in sync with proportional_falloff_curve_only_items */
switch (falloff) {
case PROP_SMOOTH:
/* ease - gives less hard lines for dilate/erode feather */
val = (3.0f * val * val - 2.0f * val * val * val);
break;
case PROP_SPHERE:
val = sqrtf(2.0f * val - val * val);
break;
case PROP_ROOT:
val = sqrtf(val);
break;
case PROP_SHARP:
val = val * val;
break;
case PROP_LIN:
default:
/* nothing */
break;
}
dist_fac_invert[i + rad] = val;
}
return dist_fac_invert;
}
void BlurBaseOperation::deinitExecution()
{
this->m_inputProgram = NULL;
this->m_inputSize = NULL;
if (this->m_deleteData) {
delete this->m_data;
}
this->m_data = NULL;
}
void BlurBaseOperation::updateSize(MemoryBuffer **memoryBuffers)
{
if (!this->m_sizeavailable) {
float result[4];
this->getInputSocketReader(1)->read(result, 0, 0, COM_PS_NEAREST, memoryBuffers);
this->m_size = result[0];
this->m_sizeavailable = true;
}
}
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