diff options
author | Manuel Castilla <manzanillawork@gmail.com> | 2021-06-01 11:25:38 +0300 |
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committer | Manuel Castilla <manzanillawork@gmail.com> | 2021-06-01 11:51:53 +0300 |
commit | 9adfd278f7487798f1b0124c7e44cf9934b4ba54 (patch) | |
tree | 5061ed25bdace84562707533aeaf0f550510313f /source/blender/compositor/intern/COM_BufferOperation.cc | |
parent | 930ad9257d00a1891a948ff71756ffe8acb61686 (diff) |
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
Diffstat (limited to 'source/blender/compositor/intern/COM_BufferOperation.cc')
-rw-r--r-- | source/blender/compositor/intern/COM_BufferOperation.cc | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/source/blender/compositor/intern/COM_BufferOperation.cc b/source/blender/compositor/intern/COM_BufferOperation.cc new file mode 100644 index 00000000000..c1e64142443 --- /dev/null +++ b/source/blender/compositor/intern/COM_BufferOperation.cc @@ -0,0 +1,65 @@ +/* + * 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 2021, Blender Foundation. + */ + +#include "COM_BufferOperation.h" + +namespace blender::compositor { + +BufferOperation::BufferOperation(MemoryBuffer *buffer, DataType data_type) : NodeOperation() +{ + buffer_ = buffer; + /* TODO: Implement a MemoryBuffer get_size() method returning a Size2d type. Shorten following + * code to: set_resolution(buffer.get_size()) */ + unsigned int resolution[2]; + resolution[0] = buffer->getWidth(); + resolution[1] = buffer->getHeight(); + setResolution(resolution); + addOutputSocket(data_type); +} + +void *BufferOperation::initializeTileData(rcti * /*rect*/) +{ + return buffer_; +} + +void BufferOperation::executePixelSampled(float output[4], float x, float y, PixelSampler sampler) +{ + switch (sampler) { + case PixelSampler::Nearest: + buffer_->read(output, x, y); + break; + case PixelSampler::Bilinear: + default: + buffer_->readBilinear(output, x, y); + break; + case PixelSampler::Bicubic: + /* No bicubic. Same implementation as ReadBufferOperation. */ + buffer_->readBilinear(output, x, y); + break; + } +} + +void BufferOperation::executePixelFiltered( + float output[4], float x, float y, float dx[2], float dy[2]) +{ + const float uv[2] = {x, y}; + const float deriv[2][2] = {{dx[0], dx[1]}, {dy[0], dy[1]}}; + buffer_->readEWA(output, uv, deriv); +} + +} // namespace blender::compositor |