COM_MetaData.cc

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/* SPDX-FileCopyrightText: 2021 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */
 
#include "COM_MetaData.h"
 
#include "BKE_image.hh"
 
#include "RE_pipeline.h"
 
namespace blender::compositor {
 
void MetaData::add(const blender::StringRef key, const blender::StringRef value)
{
  entries_.add(key, value);
}
 
bool MetaData::is_cryptomatte_layer() const
{
  return entries_.contains(META_DATA_KEY_CRYPTOMATTE_HASH) ||
         entries_.contains(META_DATA_KEY_CRYPTOMATTE_CONVERSION) ||
         entries_.contains(META_DATA_KEY_CRYPTOMATTE_MANIFEST);
}
 
void MetaData::add_cryptomatte_entry(const blender::StringRef layer_name,
                                     const blender::StringRefNull key,
                                     const blender::StringRef value)
{
  add(blender::bke::cryptomatte::BKE_cryptomatte_meta_data_key(layer_name, key), value);
}
 
void MetaData::replace_hash_neutral_cryptomatte_keys(const blender::StringRef layer_name)
{
  std::string cryptomatte_hash = entries_.pop_default(META_DATA_KEY_CRYPTOMATTE_HASH, "");
  std::string cryptomatte_conversion = entries_.pop_default(META_DATA_KEY_CRYPTOMATTE_CONVERSION,
                                                            "");
  std::string cryptomatte_manifest = entries_.pop_default(META_DATA_KEY_CRYPTOMATTE_MANIFEST, "");
 
  if (cryptomatte_hash.length() || cryptomatte_conversion.length() ||
      cryptomatte_manifest.length())
  {
    add_cryptomatte_entry(layer_name, "name", layer_name);
  }
  if (cryptomatte_hash.length()) {
    add_cryptomatte_entry(layer_name, "hash", cryptomatte_hash);
  }
  if (cryptomatte_conversion.length()) {
    add_cryptomatte_entry(layer_name, "conversion", cryptomatte_conversion);
  }
  if (cryptomatte_manifest.length()) {
    add_cryptomatte_entry(layer_name, "manifest", cryptomatte_manifest);
  }
}
 
void MetaData::add_to_render_result(RenderResult *render_result) const
{
  for (MapItem<std::string, std::string> entry : entries_.items()) {
    BKE_render_result_stamp_data(render_result, entry.key.c_str(), entry.value.c_str());
  }
}
 
void MetaData::for_each_entry(
    FunctionRef<void(const std::string &, const std::string &)> callback) const
{
  for (MapItem<std::string, std::string> entry : entries_.items()) {
    callback(entry.key, entry.value);
  }
}
 
void MetaDataExtractCallbackData::add_meta_data(blender::StringRef key,
                                                blender::StringRefNull value)
{
  if (!meta_data) {
    meta_data = std::make_unique<MetaData>();
  }
  meta_data->add(key, value);
}
 
void MetaDataExtractCallbackData::set_cryptomatte_keys(blender::StringRef cryptomatte_layer_name)
{
  manifest_key = blender::bke::cryptomatte::BKE_cryptomatte_meta_data_key(cryptomatte_layer_name,
                                                                          "manifest");
  hash_key = blender::bke::cryptomatte::BKE_cryptomatte_meta_data_key(cryptomatte_layer_name,
                                                                      "hash");
  conversion_key = blender::bke::cryptomatte::BKE_cryptomatte_meta_data_key(cryptomatte_layer_name,
                                                                            "conversion");
}
 
void MetaDataExtractCallbackData::extract_cryptomatte_meta_data(void *_data,
                                                                const char *propname,
                                                                char *propvalue,
                                                                int /*len*/)
{
  MetaDataExtractCallbackData *data = static_cast<MetaDataExtractCallbackData *>(_data);
  blender::StringRefNull key(propname);
  if (key == data->hash_key) {
    data->add_meta_data(META_DATA_KEY_CRYPTOMATTE_HASH, propvalue);
  }
  else if (key == data->conversion_key) {
    data->add_meta_data(META_DATA_KEY_CRYPTOMATTE_CONVERSION, propvalue);
  }
  else if (key == data->manifest_key) {
    data->add_meta_data(META_DATA_KEY_CRYPTOMATTE_MANIFEST, propvalue);
  }
}
 
}  // namespace blender::compositor