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blender-archive/source/blender/compositor/intern/COM_CPUDevice.cc
Manuel Castilla 9adfd278f7 Compositor: Full-frame base system
This patch adds the base code needed to make the full-frame system work for both current tiled/per-pixel implementation of operations and full-frame.

Two execution models:
- Tiled: Current implementation. Renders execution groups in tiles from outputs to input. Not all operations are buffered. Runs the tiled/per-pixel implementation.
- FullFrame: All operations are buffered. Fully renders operations from inputs to outputs. Runs full-frame implementation of operations if available otherwise the current tiled/per-pixel. Creates output buffers on first read and free them as soon as all its readers have finished, reducing peak memory usage of complex/long trees. Operations are multi-threaded but do not run in parallel as Tiled (will be done in another patch).

This should allow us to convert operations to full-frame in small steps with the system already working and solve the problem of high memory usage.

FullFrame breaking changes respect Tiled system, mainly:
- Translate, Rotate, Scale, and Transform take effect immediately instead of next buffered operation.
- Any sampling is always done over inputs instead of last buffered operation.

Reviewed By: jbakker

Differential Revision: https://developer.blender.org/D11113
2021-06-01 10:51:53 +02:00

54 lines
1.6 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_CPUDevice.h"
#include "COM_ExecutionGroup.h"
#include "BLI_rect.h"
namespace blender::compositor {
CPUDevice::CPUDevice(int thread_id) : m_thread_id(thread_id)
{
}
void CPUDevice::execute(WorkPackage *work_package)
{
switch (work_package->type) {
case eWorkPackageType::Tile: {
const unsigned int chunkNumber = work_package->chunk_number;
ExecutionGroup *executionGroup = work_package->execution_group;
executionGroup->getOutputOperation()->executeRegion(&work_package->rect, chunkNumber);
executionGroup->finalizeChunkExecution(chunkNumber, nullptr);
break;
}
case eWorkPackageType::CustomFunction: {
work_package->execute_fn();
break;
}
}
if (work_package->executed_fn) {
work_package->executed_fn();
}
}
} // namespace blender::compositor