e955c94ed3
Listing the "Blender Foundation" as copyright holder implied the Blender Foundation holds copyright to files which may include work from many developers. While keeping copyright on headers makes sense for isolated libraries, Blender's own code may be refactored or moved between files in a way that makes the per file copyright holders less meaningful. Copyright references to the "Blender Foundation" have been replaced with "Blender Authors", with the exception of `./extern/` since these this contains libraries which are more isolated, any changed to license headers there can be handled on a case-by-case basis. Some directories in `./intern/` have also been excluded: - `./intern/cycles/` it's own `AUTHORS` file is planned. - `./intern/opensubdiv/`. An "AUTHORS" file has been added, using the chromium projects authors file as a template. Design task: #110784 Ref !110783.
68 lines
2.5 KiB
C++
68 lines
2.5 KiB
C++
/* SPDX-FileCopyrightText: 2021 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#pragma once
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#include <string>
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#include "BKE_cryptomatte.hh"
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#include "BLI_map.hh"
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#include "MEM_guardedalloc.h"
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/* Forward declarations. */
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struct RenderResult;
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namespace blender::compositor {
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/* Cryptomatte includes hash in its meta data keys. The hash is generated from the render
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* layer/pass name. Compositing happens without the knowledge of the original layer and pass. The
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* next keys are used to transfer the cryptomatte meta data in a neutral way. The file output node
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* will generate a hash based on the layer name configured by the user.
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*
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* The `{hash}` has no special meaning except to make sure that the meta data stays unique. */
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constexpr blender::StringRef META_DATA_KEY_CRYPTOMATTE_HASH("cryptomatte/{hash}/hash");
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constexpr blender::StringRef META_DATA_KEY_CRYPTOMATTE_CONVERSION("cryptomatte/{hash}/conversion");
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constexpr blender::StringRef META_DATA_KEY_CRYPTOMATTE_MANIFEST("cryptomatte/{hash}/manifest");
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constexpr blender::StringRef META_DATA_KEY_CRYPTOMATTE_NAME("cryptomatte/{hash}/name");
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class MetaData {
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private:
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Map<std::string, std::string> entries_;
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void add_cryptomatte_entry(const blender::StringRef layer_name,
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const blender::StringRefNull key,
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const blender::StringRef value);
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public:
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void add(const blender::StringRef key, const blender::StringRef value);
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/**
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* Replace the hash neutral cryptomatte keys with hashed versions.
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*
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* When a conversion happens it will also add the cryptomatte name key with the given
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* `layer_name`.
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*/
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void replace_hash_neutral_cryptomatte_keys(const blender::StringRef layer_name);
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void add_to_render_result(RenderResult *render_result) const;
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#ifdef WITH_CXX_GUARDEDALLOC
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MEM_CXX_CLASS_ALLOC_FUNCS("COM:MetaData")
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#endif
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};
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struct MetaDataExtractCallbackData {
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std::unique_ptr<MetaData> meta_data;
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std::string hash_key;
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std::string conversion_key;
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std::string manifest_key;
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void add_meta_data(blender::StringRef key, blender::StringRefNull value);
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void set_cryptomatte_keys(blender::StringRef cryptomatte_layer_name);
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/* C type callback function (StampCallback). */
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static void extract_cryptomatte_meta_data(void *_data,
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const char *propname,
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char *propvalue,
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int /*len*/);
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};
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} // namespace blender::compositor
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