124 lines
3.6 KiB
C++
124 lines
3.6 KiB
C++
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Copyright 2011, Blender Foundation.
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*/
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#include "COM_ReadBufferOperation.h"
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#include "COM_WriteBufferOperation.h"
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#include "COM_defines.h"
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ReadBufferOperation::ReadBufferOperation(DataType datatype) : NodeOperation()
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{
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this->addOutputSocket(datatype);
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this->m_single_value = false;
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this->m_offset = 0;
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this->m_buffer = NULL;
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}
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void *ReadBufferOperation::initializeTileData(rcti * /*rect*/)
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{
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return m_buffer;
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}
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void ReadBufferOperation::determineResolution(unsigned int resolution[2], unsigned int preferredResolution[2])
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{
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if (this->m_memoryProxy != NULL) {
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WriteBufferOperation *operation = this->m_memoryProxy->getWriteBufferOperation();
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operation->determineResolution(resolution, preferredResolution);
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operation->setResolution(resolution);
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/// \todo: may not occur!, but does with blur node
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if (this->m_memoryProxy->getExecutor()) {
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this->m_memoryProxy->getExecutor()->setResolution(resolution);
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}
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m_single_value = operation->isSingleValue();
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}
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}
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void ReadBufferOperation::executePixelSampled(float output[4], float x, float y, PixelSampler sampler)
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{
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if (m_single_value) {
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/* write buffer has a single value stored at (0,0) */
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m_buffer->read(output, 0, 0);
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}
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else {
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switch (sampler) {
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case COM_PS_NEAREST:
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m_buffer->read(output, x, y);
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break;
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case COM_PS_BILINEAR:
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default:
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m_buffer->readBilinear(output, x, y);
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break;
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case COM_PS_BICUBIC:
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m_buffer->readBilinear(output, x, y);
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break;
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}
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}
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}
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void ReadBufferOperation::executePixelExtend(float output[4], float x, float y, PixelSampler sampler,
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MemoryBufferExtend extend_x, MemoryBufferExtend extend_y)
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{
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if (m_single_value) {
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/* write buffer has a single value stored at (0,0) */
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m_buffer->read(output, 0, 0);
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}
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else if (sampler == COM_PS_NEAREST) {
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m_buffer->read(output, x, y, extend_x, extend_y);
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}
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else {
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m_buffer->readBilinear(output, x, y, extend_x, extend_y);
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}
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}
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void ReadBufferOperation::executePixelFiltered(float output[4], float x, float y, float dx[2], float dy[2])
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{
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if (m_single_value) {
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/* write buffer has a single value stored at (0,0) */
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m_buffer->read(output, 0, 0);
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}
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else {
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const float uv[2] = { x, y };
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const float deriv[2][2] = { {dx[0], dx[1]}, {dy[0], dy[1]} };
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m_buffer->readEWA(output, uv, deriv);
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}
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}
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bool ReadBufferOperation::determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output)
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{
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if (this == readOperation) {
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BLI_rcti_init(output, input->xmin, input->xmax, input->ymin, input->ymax);
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return true;
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}
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return false;
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}
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void ReadBufferOperation::readResolutionFromWriteBuffer()
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{
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if (this->m_memoryProxy != NULL) {
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WriteBufferOperation *operation = this->m_memoryProxy->getWriteBufferOperation();
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this->setWidth(operation->getWidth());
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this->setHeight(operation->getHeight());
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}
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}
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void ReadBufferOperation::updateMemoryBuffer()
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{
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this->m_buffer = this->getMemoryProxy()->getBuffer();
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}
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