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