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/*
* 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 2011, Blender Foundation.
*/
#include "COM_BlurBaseOperation.h"
#include "BLI_math.h"
#include "MEM_guardedalloc.h"
#include "RE_pipeline.h"
BlurBaseOperation::BlurBaseOperation(DataType data_type)
{
/* data_type is almost always DataType::Color except for alpha-blur */
this->addInputSocket(data_type);
this->addInputSocket(DataType::Value);
this->addOutputSocket(data_type);
this->setComplex(true);
this->m_inputProgram = nullptr;
memset(&m_data, 0, sizeof(NodeBlurData));
this->m_size = 1.0f;
this->m_sizeavailable = false;
this->m_extend_bounds = 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) {
int sizex, sizey;
switch (this->m_data.aspect) {
case CMP_NODE_BLUR_ASPECT_Y:
sizex = sizey = this->m_data.image_in_width;
break;
case CMP_NODE_BLUR_ASPECT_X:
sizex = sizey = this->m_data.image_in_height;
break;
default:
BLI_assert(this->m_data.aspect == CMP_NODE_BLUR_ASPECT_NONE);
sizex = this->m_data.image_in_width;
sizey = this->m_data.image_in_height;
break;
}
this->m_data.sizex = round_fl_to_int(this->m_data.percentx * 0.01f * sizex);
this->m_data.sizey = round_fl_to_int(this->m_data.percenty * 0.01f * sizey);
}
QualityStepHelper::initExecution(COM_QH_MULTIPLY);
}
float *BlurBaseOperation::make_gausstab(float rad, int size)
{
float *gausstab, sum, val;
int i, n;
n = 2 * size + 1;
gausstab = (float *)MEM_mallocN(sizeof(float) * n, __func__);
sum = 0.0f;
float fac = (rad > 0.0f ? 1.0f / rad : 0.0f);
for (i = -size; i <= size; i++) {
val = RE_filter_value(this->m_data.filtertype, (float)i * fac);
sum += val;
gausstab[i + size] = val;
}
sum = 1.0f / sum;
for (i = 0; i < n; i++) {
gausstab[i] *= sum;
}
return gausstab;
}
#ifdef BLI_HAVE_SSE2
__m128 *BlurBaseOperation::convert_gausstab_sse(const float *gausstab, int size)
{
int n = 2 * size + 1;
__m128 *gausstab_sse = (__m128 *)MEM_mallocN_aligned(sizeof(__m128) * n, 16, "gausstab sse");
for (int i = 0; i < n; i++) {
gausstab_sse[i] = _mm_set1_ps(gausstab[i]);
}
return gausstab_sse;
}
#endif
/* 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(float rad, int size, int falloff)
{
float *dist_fac_invert, val;
int i, n;
n = 2 * size + 1;
dist_fac_invert = (float *)MEM_mallocN(sizeof(float) * n, __func__);
float fac = (rad > 0.0f ? 1.0f / rad : 0.0f);
for (i = -size; i <= size; i++) {
val = 1.0f - fabsf((float)i * fac);
/* keep in sync with rna_enum_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_INVSQUARE:
val = val * (2.0f - val);
break;
case PROP_LIN:
/* nothing to do */
break;
#ifndef NDEBUG
case -1:
/* uninitialized! */
BLI_assert(0);
break;
#endif
default:
/* nothing */
break;
}
dist_fac_invert[i + size] = val;
}
return dist_fac_invert;
}
void BlurBaseOperation::deinitExecution()
{
this->m_inputProgram = nullptr;
this->m_inputSize = nullptr;
}
void BlurBaseOperation::setData(const NodeBlurData *data)
{
memcpy(&m_data, data, sizeof(NodeBlurData));
}
void BlurBaseOperation::updateSize()
{
if (!this->m_sizeavailable) {
float result[4];
this->getInputSocketReader(1)->readSampled(result, 0, 0, COM_PS_NEAREST);
this->m_size = result[0];
this->m_sizeavailable = true;
}
}
void BlurBaseOperation::determineResolution(unsigned int resolution[2],
unsigned int preferredResolution[2])
{
NodeOperation::determineResolution(resolution, preferredResolution);
if (this->m_extend_bounds) {
resolution[0] += 2 * this->m_size * m_data.sizex;
resolution[1] += 2 * this->m_size * m_data.sizey;
}
}
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