1a134c4c30
* Add OutputDriver, replacing function callbacks in Session. * Add PathTraceTile, replacing tile access methods in Session. * Add more detailed comments about how this driver should be implemented. * Add OIIOOutputDriver for Cycles standalone to output an image. Differential Revision: https://developer.blender.org/D12627
72 lines
2.1 KiB
C++
72 lines
2.1 KiB
C++
/*
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* Copyright 2021 Blender Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "app/oiio_output_driver.h"
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CCL_NAMESPACE_BEGIN
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OIIOOutputDriver::OIIOOutputDriver(const string_view filepath,
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const string_view pass,
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LogFunction log)
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: filepath_(filepath), pass_(pass), log_(log)
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{
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}
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OIIOOutputDriver::~OIIOOutputDriver()
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{
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}
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void OIIOOutputDriver::write_render_tile(const Tile &tile)
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{
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/* Only write the full buffer, no intermediate tiles. */
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if (!(tile.size == tile.full_size)) {
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return;
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}
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log_(string_printf("Writing image %s", filepath_.c_str()));
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unique_ptr<ImageOutput> image_output(ImageOutput::create(filepath_));
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if (image_output == nullptr) {
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log_("Failed to create image file");
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return;
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}
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const int width = tile.size.x;
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const int height = tile.size.y;
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ImageSpec spec(width, height, 4, TypeDesc::FLOAT);
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if (!image_output->open(filepath_, spec)) {
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log_("Failed to create image file");
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return;
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}
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vector<float> pixels(width * height * 4);
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if (!tile.get_pass_pixels(pass_, 4, pixels.data())) {
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log_("Failed to read render pass pixels");
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return;
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}
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/* Manipulate offset and stride to convert from bottom-up to top-down convention. */
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image_output->write_image(TypeDesc::FLOAT,
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pixels.data() + (height - 1) * width * 4,
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AutoStride,
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-width * 4 * sizeof(float),
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AutoStride);
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image_output->close();
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}
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CCL_NAMESPACE_END
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