diff options
author | Brecht Van Lommel <brecht> | 2021-09-30 17:51:03 +0300 |
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committer | Brecht Van Lommel <brecht@blender.org> | 2021-09-30 21:53:27 +0300 |
commit | 1a134c4c30a643ada1b9a7a037040b5f5c173a28 (patch) | |
tree | b4216998527ff24fb3fc9e9351ced05cd7b7eb08 /intern/cycles/app/oiio_output_driver.cpp | |
parent | a754e35198d852ea34e2b82cd2b126538e6f5a3b (diff) |
Cycles: refactor API for render output
* 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
Diffstat (limited to 'intern/cycles/app/oiio_output_driver.cpp')
-rw-r--r-- | intern/cycles/app/oiio_output_driver.cpp | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/intern/cycles/app/oiio_output_driver.cpp b/intern/cycles/app/oiio_output_driver.cpp new file mode 100644 index 00000000000..d791c89772f --- /dev/null +++ b/intern/cycles/app/oiio_output_driver.cpp @@ -0,0 +1,71 @@ +/* + * 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 |