134 lines
4.2 KiB
C++
134 lines
4.2 KiB
C++
/*
|
|
* 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_ReadBufferOperation.h"
|
|
#include "COM_WriteBufferOperation.h"
|
|
#include "COM_defines.h"
|
|
|
|
ReadBufferOperation::ReadBufferOperation(DataType datatype)
|
|
{
|
|
this->addOutputSocket(datatype);
|
|
this->m_single_value = false;
|
|
this->m_offset = 0;
|
|
this->m_buffer = nullptr;
|
|
}
|
|
|
|
void *ReadBufferOperation::initializeTileData(rcti * /*rect*/)
|
|
{
|
|
return m_buffer;
|
|
}
|
|
|
|
void ReadBufferOperation::determineResolution(unsigned int resolution[2],
|
|
unsigned int preferredResolution[2])
|
|
{
|
|
if (this->m_memoryProxy != nullptr) {
|
|
WriteBufferOperation *operation = this->m_memoryProxy->getWriteBufferOperation();
|
|
operation->determineResolution(resolution, preferredResolution);
|
|
operation->setResolution(resolution);
|
|
|
|
/** \todo: may not occur!, but does with blur node */
|
|
if (this->m_memoryProxy->getExecutor()) {
|
|
this->m_memoryProxy->getExecutor()->setResolution(resolution);
|
|
}
|
|
|
|
m_single_value = operation->isSingleValue();
|
|
}
|
|
}
|
|
void ReadBufferOperation::executePixelSampled(float output[4],
|
|
float x,
|
|
float y,
|
|
PixelSampler sampler)
|
|
{
|
|
if (m_single_value) {
|
|
/* write buffer has a single value stored at (0,0) */
|
|
m_buffer->read(output, 0, 0);
|
|
}
|
|
else {
|
|
switch (sampler) {
|
|
case COM_PS_NEAREST:
|
|
m_buffer->read(output, x, y);
|
|
break;
|
|
case COM_PS_BILINEAR:
|
|
default:
|
|
m_buffer->readBilinear(output, x, y);
|
|
break;
|
|
case COM_PS_BICUBIC:
|
|
m_buffer->readBilinear(output, x, y);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void ReadBufferOperation::executePixelExtend(float output[4],
|
|
float x,
|
|
float y,
|
|
PixelSampler sampler,
|
|
MemoryBufferExtend extend_x,
|
|
MemoryBufferExtend extend_y)
|
|
{
|
|
if (m_single_value) {
|
|
/* write buffer has a single value stored at (0,0) */
|
|
m_buffer->read(output, 0, 0);
|
|
}
|
|
else if (sampler == COM_PS_NEAREST) {
|
|
m_buffer->read(output, x, y, extend_x, extend_y);
|
|
}
|
|
else {
|
|
m_buffer->readBilinear(output, x, y, extend_x, extend_y);
|
|
}
|
|
}
|
|
|
|
void ReadBufferOperation::executePixelFiltered(
|
|
float output[4], float x, float y, float dx[2], float dy[2])
|
|
{
|
|
if (m_single_value) {
|
|
/* write buffer has a single value stored at (0,0) */
|
|
m_buffer->read(output, 0, 0);
|
|
}
|
|
else {
|
|
const float uv[2] = {x, y};
|
|
const float deriv[2][2] = {{dx[0], dx[1]}, {dy[0], dy[1]}};
|
|
m_buffer->readEWA(output, uv, deriv);
|
|
}
|
|
}
|
|
|
|
bool ReadBufferOperation::determineDependingAreaOfInterest(rcti *input,
|
|
ReadBufferOperation *readOperation,
|
|
rcti *output)
|
|
{
|
|
if (this == readOperation) {
|
|
BLI_rcti_init(output, input->xmin, input->xmax, input->ymin, input->ymax);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void ReadBufferOperation::readResolutionFromWriteBuffer()
|
|
{
|
|
if (this->m_memoryProxy != nullptr) {
|
|
WriteBufferOperation *operation = this->m_memoryProxy->getWriteBufferOperation();
|
|
this->setWidth(operation->getWidth());
|
|
this->setHeight(operation->getHeight());
|
|
}
|
|
}
|
|
|
|
void ReadBufferOperation::updateMemoryBuffer()
|
|
{
|
|
this->m_buffer = this->getMemoryProxy()->getBuffer();
|
|
}
|