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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 2019, Blender Foundation.
*/
#include "COM_DenoiseOperation.h"
#include "BLI_math.h"
#include "BLI_system.h"
#ifdef WITH_OPENIMAGEDENOISE
# include "BLI_threads.h"
# include <OpenImageDenoise/oidn.hpp>
static pthread_mutex_t oidn_lock = BLI_MUTEX_INITIALIZER;
#endif
#include <iostream>
DenoiseOperation::DenoiseOperation()
{
this->addInputSocket(DataType::Color);
this->addInputSocket(DataType::Vector);
this->addInputSocket(DataType::Color);
this->addOutputSocket(DataType::Color);
this->m_settings = nullptr;
}
void DenoiseOperation::initExecution()
{
SingleThreadedOperation::initExecution();
this->m_inputProgramColor = getInputSocketReader(0);
this->m_inputProgramNormal = getInputSocketReader(1);
this->m_inputProgramAlbedo = getInputSocketReader(2);
}
void DenoiseOperation::deinitExecution()
{
this->m_inputProgramColor = nullptr;
this->m_inputProgramNormal = nullptr;
this->m_inputProgramAlbedo = nullptr;
SingleThreadedOperation::deinitExecution();
}
MemoryBuffer *DenoiseOperation::createMemoryBuffer(rcti *rect2)
{
MemoryBuffer *tileColor = (MemoryBuffer *)this->m_inputProgramColor->initializeTileData(rect2);
MemoryBuffer *tileNormal = (MemoryBuffer *)this->m_inputProgramNormal->initializeTileData(rect2);
MemoryBuffer *tileAlbedo = (MemoryBuffer *)this->m_inputProgramAlbedo->initializeTileData(rect2);
rcti rect;
rect.xmin = 0;
rect.ymin = 0;
rect.xmax = getWidth();
rect.ymax = getHeight();
MemoryBuffer *result = new MemoryBuffer(DataType::Color, rect);
float *data = result->getBuffer();
this->generateDenoise(data, tileColor, tileNormal, tileAlbedo, this->m_settings);
return result;
}
bool DenoiseOperation::determineDependingAreaOfInterest(rcti * /*input*/,
ReadBufferOperation *readOperation,
rcti *output)
{
if (isCached()) {
return false;
}
rcti newInput;
newInput.xmax = this->getWidth();
newInput.xmin = 0;
newInput.ymax = this->getHeight();
newInput.ymin = 0;
return NodeOperation::determineDependingAreaOfInterest(&newInput, readOperation, output);
}
void DenoiseOperation::generateDenoise(float *data,
MemoryBuffer *inputTileColor,
MemoryBuffer *inputTileNormal,
MemoryBuffer *inputTileAlbedo,
NodeDenoise *settings)
{
float *inputBufferColor = inputTileColor->getBuffer();
BLI_assert(inputBufferColor);
if (!inputBufferColor) {
return;
}
#ifdef WITH_OPENIMAGEDENOISE
/* Always supported through Accelerate framework BNNS on macOS. */
# ifndef __APPLE__
if (BLI_cpu_support_sse41())
# endif
{
oidn::DeviceRef device = oidn::newDevice();
device.commit();
oidn::FilterRef filter = device.newFilter("RT");
filter.setImage("color",
inputBufferColor,
oidn::Format::Float3,
inputTileColor->getWidth(),
inputTileColor->getHeight(),
0,
sizeof(float[4]));
if (inputTileNormal && inputTileNormal->getBuffer()) {
filter.setImage("normal",
inputTileNormal->getBuffer(),
oidn::Format::Float3,
inputTileNormal->getWidth(),
inputTileNormal->getHeight(),
0,
sizeof(float[3]));
}
if (inputTileAlbedo && inputTileAlbedo->getBuffer()) {
filter.setImage("albedo",
inputTileAlbedo->getBuffer(),
oidn::Format::Float3,
inputTileAlbedo->getWidth(),
inputTileAlbedo->getHeight(),
0,
sizeof(float[4]));
}
filter.setImage("output",
data,
oidn::Format::Float3,
inputTileColor->getWidth(),
inputTileColor->getHeight(),
0,
sizeof(float[4]));
BLI_assert(settings);
if (settings) {
filter.set("hdr", settings->hdr);
filter.set("srgb", false);
}
filter.commit();
/* Since it's memory intensive, it's better to run only one instance of OIDN at a time.
* OpenImageDenoise is multithreaded internally and should use all available cores nonetheless.
*/
BLI_mutex_lock(&oidn_lock);
filter.execute();
BLI_mutex_unlock(&oidn_lock);
/* copy the alpha channel, OpenImageDenoise currently only supports RGB */
size_t numPixels = inputTileColor->getWidth() * inputTileColor->getHeight();
for (size_t i = 0; i < numPixels; i++) {
data[i * 4 + 3] = inputBufferColor[i * 4 + 3];
}
return;
}
#endif
/* If built without OIDN or running on an unsupported CPU, just pass through. */
UNUSED_VARS(inputTileAlbedo, inputTileNormal, settings);
::memcpy(data,
inputBufferColor,
sizeof(float[4]) * inputTileColor->getWidth() * inputTileColor->getHeight());
}
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