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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_WriteBufferOperation.h"
#include "COM_defines.h"
#include <stdio.h>
#include "COM_OpenCLDevice.h"
WriteBufferOperation::WriteBufferOperation(DataType datatype) : NodeOperation()
{
this->addInputSocket(datatype);
this->m_memoryProxy = new MemoryProxy(datatype);
this->m_memoryProxy->setWriteBufferOperation(this);
this->m_memoryProxy->setExecutor(NULL);
}
WriteBufferOperation::~WriteBufferOperation()
{
if (this->m_memoryProxy) {
delete this->m_memoryProxy;
this->m_memoryProxy = NULL;
}
}
void WriteBufferOperation::executePixelSampled(float output[4], float x, float y, PixelSampler sampler)
{
this->m_input->readSampled(output, x, y, sampler);
}
void WriteBufferOperation::initExecution()
{
this->m_input = this->getInputOperation(0);
this->m_memoryProxy->allocate(this->m_width, this->m_height);
}
void WriteBufferOperation::deinitExecution()
{
this->m_input = NULL;
this->m_memoryProxy->free();
}
void WriteBufferOperation::executeRegion(rcti *rect, unsigned int tileNumber)
{
MemoryBuffer *memoryBuffer = this->m_memoryProxy->getBuffer();
float *buffer = memoryBuffer->getBuffer();
const int num_channels = memoryBuffer->get_num_channels();
if (this->m_input->isComplex()) {
void *data = this->m_input->initializeTileData(rect);
int x1 = rect->xmin;
int y1 = rect->ymin;
int x2 = rect->xmax;
int y2 = rect->ymax;
int x;
int y;
bool breaked = false;
for (y = y1; y < y2 && (!breaked); y++) {
int offset4 = (y * memoryBuffer->getWidth() + x1) * num_channels;
for (x = x1; x < x2; x++) {
this->m_input->read(&(buffer[offset4]), x, y, data);
offset4 += num_channels;
}
if (isBreaked()) {
breaked = true;
}
}
if (data) {
this->m_input->deinitializeTileData(rect, data);
data = NULL;
}
}
else {
int x1 = rect->xmin;
int y1 = rect->ymin;
int x2 = rect->xmax;
int y2 = rect->ymax;
int x;
int y;
bool breaked = false;
for (y = y1; y < y2 && (!breaked); y++) {
int offset4 = (y * memoryBuffer->getWidth() + x1) * num_channels;
for (x = x1; x < x2; x++) {
this->m_input->readSampled(&(buffer[offset4]), x, y, COM_PS_NEAREST);
offset4 += num_channels;
}
if (isBreaked()) {
breaked = true;
}
}
}
memoryBuffer->setCreatedState();
}
void WriteBufferOperation::executeOpenCLRegion(OpenCLDevice *device, rcti *rect, unsigned int chunkNumber,
MemoryBuffer **inputMemoryBuffers, MemoryBuffer *outputBuffer)
{
float *outputFloatBuffer = outputBuffer->getBuffer();
cl_int error;
/*
* 1. create cl_mem from outputbuffer
* 2. call NodeOperation (input) executeOpenCLChunk(.....)
* 3. schedule readback from opencl to main device (outputbuffer)
* 4. schedule native callback
*
* note: list of cl_mem will be filled by 2, and needs to be cleaned up by 4
*/
// STEP 1
const unsigned int outputBufferWidth = outputBuffer->getWidth();
const unsigned int outputBufferHeight = outputBuffer->getHeight();
const cl_image_format *imageFormat = device->determineImageFormat(outputBuffer);
cl_mem clOutputBuffer = clCreateImage2D(device->getContext(), CL_MEM_WRITE_ONLY | CL_MEM_USE_HOST_PTR, imageFormat, outputBufferWidth, outputBufferHeight, 0, outputFloatBuffer, &error);
if (error != CL_SUCCESS) { printf("CLERROR[%d]: %s\n", error, clewErrorString(error)); }
// STEP 2
list<cl_mem> *clMemToCleanUp = new list<cl_mem>();
clMemToCleanUp->push_back(clOutputBuffer);
list<cl_kernel> *clKernelsToCleanUp = new list<cl_kernel>();
this->m_input->executeOpenCL(device, outputBuffer, clOutputBuffer, inputMemoryBuffers, clMemToCleanUp, clKernelsToCleanUp);
// STEP 3
size_t origin[3] = {0, 0, 0};
size_t region[3] = {outputBufferWidth, outputBufferHeight, 1};
// clFlush(queue);
// clFinish(queue);
error = clEnqueueBarrier(device->getQueue());
if (error != CL_SUCCESS) { printf("CLERROR[%d]: %s\n", error, clewErrorString(error)); }
error = clEnqueueReadImage(device->getQueue(), clOutputBuffer, CL_TRUE, origin, region, 0, 0, outputFloatBuffer, 0, NULL, NULL);
if (error != CL_SUCCESS) { printf("CLERROR[%d]: %s\n", error, clewErrorString(error)); }
this->getMemoryProxy()->getBuffer()->copyContentFrom(outputBuffer);
// STEP 4
while (!clMemToCleanUp->empty()) {
cl_mem mem = clMemToCleanUp->front();
error = clReleaseMemObject(mem);
if (error != CL_SUCCESS) { printf("CLERROR[%d]: %s\n", error, clewErrorString(error)); }
clMemToCleanUp->pop_front();
}
while (!clKernelsToCleanUp->empty()) {
cl_kernel kernel = clKernelsToCleanUp->front();
error = clReleaseKernel(kernel);
if (error != CL_SUCCESS) { printf("CLERROR[%d]: %s\n", error, clewErrorString(error)); }
clKernelsToCleanUp->pop_front();
}
delete clKernelsToCleanUp;
}
void WriteBufferOperation::determineResolution(unsigned int resolution[2], unsigned int preferredResolution[2])
{
NodeOperation::determineResolution(resolution, preferredResolution);
/* make sure there is at least one pixel stored in case the input is a single value */
m_single_value = false;
if (resolution[0] == 0) {
resolution[0] = 1;
m_single_value = true;
}
if (resolution[1] == 0) {
resolution[1] = 1;
m_single_value = true;
}
}
void WriteBufferOperation::readResolutionFromInputSocket()
{
NodeOperation *inputOperation = this->getInputOperation(0);
this->setWidth(inputOperation->getWidth());
this->setHeight(inputOperation->getHeight());
}
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