Manuel Castilla
76377f0176
This is a code refactor in preparation of supporting canvas
compositing. See {D12466}.
No functional changes, all canvases are at (0,0) position matching
tiled implementation.
Differential Revision: https://developer.blender.org/D12465
140 lines
4.4 KiB
C++
140 lines
4.4 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_ReadBufferOperation.h"
|
|
#include "COM_WriteBufferOperation.h"
|
|
#include "COM_defines.h"
|
|
|
|
namespace blender::compositor {
|
|
|
|
ReadBufferOperation::ReadBufferOperation(DataType datatype)
|
|
{
|
|
this->addOutputSocket(datatype);
|
|
this->m_single_value = false;
|
|
this->m_offset = 0;
|
|
this->m_buffer = nullptr;
|
|
flags.is_read_buffer_operation = true;
|
|
}
|
|
|
|
void *ReadBufferOperation::initializeTileData(rcti * /*rect*/)
|
|
{
|
|
return m_buffer;
|
|
}
|
|
|
|
void ReadBufferOperation::determine_canvas(const rcti &preferred_area, rcti &r_area)
|
|
{
|
|
if (this->m_memoryProxy != nullptr) {
|
|
WriteBufferOperation *operation = this->m_memoryProxy->getWriteBufferOperation();
|
|
operation->determine_canvas(preferred_area, r_area);
|
|
operation->set_canvas(r_area);
|
|
|
|
/** \todo may not occur! But does with blur node. */
|
|
if (this->m_memoryProxy->getExecutor()) {
|
|
uint resolution[2] = {static_cast<uint>(BLI_rcti_size_x(&r_area)),
|
|
static_cast<uint>(BLI_rcti_size_y(&r_area))};
|
|
this->m_memoryProxy->getExecutor()->setResolution(resolution);
|
|
}
|
|
|
|
m_single_value = operation->isSingleValue();
|
|
}
|
|
}
|
|
void ReadBufferOperation::executePixelSampled(float output[4],
|
|
float x,
|
|
float y,
|
|
PixelSampler sampler)
|
|
{
|
|
if (m_single_value) {
|
|
/* write buffer has a single value stored at (0,0) */
|
|
m_buffer->read(output, 0, 0);
|
|
}
|
|
else {
|
|
switch (sampler) {
|
|
case PixelSampler::Nearest:
|
|
m_buffer->read(output, x, y);
|
|
break;
|
|
case PixelSampler::Bilinear:
|
|
default:
|
|
m_buffer->readBilinear(output, x, y);
|
|
break;
|
|
case PixelSampler::Bicubic:
|
|
m_buffer->readBilinear(output, x, y);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void ReadBufferOperation::executePixelExtend(float output[4],
|
|
float x,
|
|
float y,
|
|
PixelSampler sampler,
|
|
MemoryBufferExtend extend_x,
|
|
MemoryBufferExtend extend_y)
|
|
{
|
|
if (m_single_value) {
|
|
/* write buffer has a single value stored at (0,0) */
|
|
m_buffer->read(output, 0, 0);
|
|
}
|
|
else if (sampler == PixelSampler::Nearest) {
|
|
m_buffer->read(output, x, y, extend_x, extend_y);
|
|
}
|
|
else {
|
|
m_buffer->readBilinear(output, x, y, extend_x, extend_y);
|
|
}
|
|
}
|
|
|
|
void ReadBufferOperation::executePixelFiltered(
|
|
float output[4], float x, float y, float dx[2], float dy[2])
|
|
{
|
|
if (m_single_value) {
|
|
/* write buffer has a single value stored at (0,0) */
|
|
m_buffer->read(output, 0, 0);
|
|
}
|
|
else {
|
|
const float uv[2] = {x, y};
|
|
const float deriv[2][2] = {{dx[0], dx[1]}, {dy[0], dy[1]}};
|
|
m_buffer->readEWA(output, uv, deriv);
|
|
}
|
|
}
|
|
|
|
bool ReadBufferOperation::determineDependingAreaOfInterest(rcti *input,
|
|
ReadBufferOperation *readOperation,
|
|
rcti *output)
|
|
{
|
|
if (this == readOperation) {
|
|
BLI_rcti_init(output, input->xmin, input->xmax, input->ymin, input->ymax);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void ReadBufferOperation::readResolutionFromWriteBuffer()
|
|
{
|
|
if (this->m_memoryProxy != nullptr) {
|
|
WriteBufferOperation *operation = this->m_memoryProxy->getWriteBufferOperation();
|
|
this->setWidth(operation->getWidth());
|
|
this->setHeight(operation->getHeight());
|
|
}
|
|
}
|
|
|
|
void ReadBufferOperation::updateMemoryBuffer()
|
|
{
|
|
this->m_buffer = this->getMemoryProxy()->getBuffer();
|
|
}
|
|
|
|
} // namespace blender::compositor
|