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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
* Lukas Tönne
*/
#include "COM_MultilayerImageOperation.h"
extern "C" {
# include "IMB_imbuf.h"
# include "IMB_imbuf_types.h"
}
MultilayerBaseOperation::MultilayerBaseOperation(int passindex, int view) : BaseImageOperation()
{
this->m_passId = passindex;
this->m_view = view;
}
ImBuf *MultilayerBaseOperation::getImBuf()
{
/* temporarily changes the view to get the right ImBuf */
int view = this->m_imageUser->view;
this->m_imageUser->view = this->m_view;
this->m_imageUser->pass = this->m_passId;
if (BKE_image_multilayer_index(this->m_image->rr, this->m_imageUser)) {
ImBuf *ibuf = BaseImageOperation::getImBuf();
this->m_imageUser->view = view;
return ibuf;
}
this->m_imageUser->view = view;
return NULL;
}
void MultilayerColorOperation::executePixelSampled(float output[4], float x, float y, PixelSampler sampler)
{
if (this->m_imageFloatBuffer == NULL) {
zero_v4(output);
}
else {
if (this->m_numberOfChannels == 4) {
switch (sampler) {
case COM_PS_NEAREST:
nearest_interpolation_color(this->m_buffer, NULL, output, x, y);
break;
case COM_PS_BILINEAR:
bilinear_interpolation_color(this->m_buffer, NULL, output, x, y);
break;
case COM_PS_BICUBIC:
bicubic_interpolation_color(this->m_buffer, NULL, output, x, y);
break;
}
}
else {
int yi = y;
int xi = x;
if (xi < 0 || yi < 0 || (unsigned int)xi >= this->getWidth() || (unsigned int)yi >= this->getHeight())
zero_v4(output);
else {
int offset = (yi * this->getWidth() + xi) * 3;
copy_v3_v3(output, &this->m_imageFloatBuffer[offset]);
}
}
}
}
void MultilayerValueOperation::executePixelSampled(float output[4], float x, float y, PixelSampler /*sampler*/)
{
if (this->m_imageFloatBuffer == NULL) {
output[0] = 0.0f;
}
else {
int yi = y;
int xi = x;
if (xi < 0 || yi < 0 || (unsigned int)xi >= this->getWidth() || (unsigned int)yi >= this->getHeight())
output[0] = 0.0f;
else {
float result = this->m_imageFloatBuffer[yi * this->getWidth() + xi];
output[0] = result;
}
}
}
void MultilayerVectorOperation::executePixelSampled(float output[4], float x, float y, PixelSampler /*sampler*/)
{
if (this->m_imageFloatBuffer == NULL) {
output[0] = 0.0f;
}
else {
int yi = y;
int xi = x;
if (xi < 0 || yi < 0 || (unsigned int)xi >= this->getWidth() || (unsigned int)yi >= this->getHeight())
output[0] = 0.0f;
else {
int offset = (yi * this->getWidth() + xi) * 3;
copy_v3_v3(output, &this->m_imageFloatBuffer[offset]);
}
}
}
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