dd51c8660b
Check was misc-const-correctness, combined with readability-isolate-declaration as suggested by the docs. Temporarily clang-format "QualifierAlignment: Left" was used to get consistency with the prevailing order of keywords. Pull Request: https://projects.blender.org/blender/blender/pulls/132361
79 lines
2.2 KiB
C++
79 lines
2.2 KiB
C++
/* SPDX-FileCopyrightText: 2021-2022 Blender Foundation
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*
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* SPDX-License-Identifier: Apache-2.0 */
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#include "app/oiio_output_driver.h"
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#include "scene/colorspace.h"
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#include "util/image.h"
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#include "util/unique_ptr.h"
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#include <OpenImageIO/imagebuf.h>
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#include <OpenImageIO/imagebufalgo.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() = default;
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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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const 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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OIIO::ImageBuf image_buffer(spec,
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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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/* Apply gamma correction for (some) non-linear file formats.
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* TODO: use OpenColorIO view transform if available. */
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if (ColorSpaceManager::detect_known_colorspace(
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u_colorspace_auto, "", image_output->format_name(), true) == u_colorspace_srgb)
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{
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const float g = 1.0f / 2.2f;
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OIIO::ImageBufAlgo::pow(image_buffer, image_buffer, {g, g, g, 1.0f});
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}
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/* Write to disk and close */
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image_buffer.set_write_format(TypeDesc::FLOAT);
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image_buffer.write(image_output.get());
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image_output->close();
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}
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CCL_NAMESPACE_END
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