Differential D9642 Diff 31697 extern/draco/draco/src/draco/compression/attributes/prediction_schemes/prediction_scheme_decoder_factory.h

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extern/draco/draco/src/draco/compression/attributes/prediction_schemes/prediction_scheme_decoder_factory.h

This file was moved from extern/draco/dracoenc/src/draco/compression/attributes/prediction_schemes/prediction_scheme_decoder_factory.h.

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	// limitations under the License.			// limitations under the License.
	//			//
	// Functions for creating prediction schemes for decoders using the provided			// Functions for creating prediction schemes for decoders using the provided
	// prediction method id.			// prediction method id.

	#ifndef DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_PREDICTION_SCHEME_DECODER_FACTORY_H_			#ifndef DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_PREDICTION_SCHEME_DECODER_FACTORY_H_
	#define DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_PREDICTION_SCHEME_DECODER_FACTORY_H_			#define DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_PREDICTION_SCHEME_DECODER_FACTORY_H_

	#include "draco/draco_features.h"

	#include "draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_constrained_multi_parallelogram_decoder.h"			#include "draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_constrained_multi_parallelogram_decoder.h"
				#include "draco/draco_features.h"
	#ifdef DRACO_NORMAL_ENCODING_SUPPORTED			#ifdef DRACO_NORMAL_ENCODING_SUPPORTED
	#include "draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_geometric_normal_decoder.h"			#include "draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_geometric_normal_decoder.h"
	#endif			#endif
	#include "draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_multi_parallelogram_decoder.h"			#include "draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_multi_parallelogram_decoder.h"
	#include "draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_parallelogram_decoder.h"			#include "draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_parallelogram_decoder.h"
	#include "draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_tex_coords_decoder.h"			#include "draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_tex_coords_decoder.h"
	#include "draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_tex_coords_portable_decoder.h"			#include "draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_tex_coords_portable_decoder.h"
	#include "draco/compression/attributes/prediction_schemes/prediction_scheme_decoder.h"			#include "draco/compression/attributes/prediction_schemes/prediction_scheme_decoder.h"
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	// Creates a prediction scheme for a given decoder and given prediction method.			// Creates a prediction scheme for a given decoder and given prediction method.
	// The prediction schemes are automatically initialized with decoder specific			// The prediction schemes are automatically initialized with decoder specific
	// data if needed.			// data if needed.
	template <typename DataTypeT, class TransformT>			template <typename DataTypeT, class TransformT>
	std::unique_ptr<PredictionSchemeDecoder<DataTypeT, TransformT>>			std::unique_ptr<PredictionSchemeDecoder<DataTypeT, TransformT>>
	CreatePredictionSchemeForDecoder(PredictionSchemeMethod method, int att_id,			CreatePredictionSchemeForDecoder(PredictionSchemeMethod method, int att_id,
	const PointCloudDecoder *decoder,			const PointCloudDecoder *decoder,
	const TransformT &transform) {			const TransformT &transform) {
	if (method == PREDICTION_NONE)			if (method == PREDICTION_NONE) {
	return nullptr;			return nullptr;
				}
	const PointAttribute *const att = decoder->point_cloud()->attribute(att_id);			const PointAttribute *const att = decoder->point_cloud()->attribute(att_id);
	if (decoder->GetGeometryType() == TRIANGULAR_MESH) {			if (decoder->GetGeometryType() == TRIANGULAR_MESH) {
	// Cast the decoder to mesh decoder. This is not necessarily safe if there			// Cast the decoder to mesh decoder. This is not necessarily safe if there
	// is some other decoder decides to use TRIANGULAR_MESH as the return type,			// is some other decoder decides to use TRIANGULAR_MESH as the return type,
	// but unfortunately there is not nice work around for this without using			// but unfortunately there is not nice work around for this without using
	// RTTI (double dispatch and similar concepts will not work because of the			// RTTI (double dispatch and similar concepts will not work because of the
	// template nature of the prediction schemes).			// template nature of the prediction schemes).
	const MeshDecoder *const mesh_decoder =			const MeshDecoder *const mesh_decoder =
	static_cast<const MeshDecoder *>(decoder);			static_cast<const MeshDecoder *>(decoder);

	auto ret = CreateMeshPredictionScheme<			auto ret = CreateMeshPredictionScheme<
	MeshDecoder, PredictionSchemeDecoder<DataTypeT, TransformT>,			MeshDecoder, PredictionSchemeDecoder<DataTypeT, TransformT>,
	MeshPredictionSchemeDecoderFactory<DataTypeT>>(			MeshPredictionSchemeDecoderFactory<DataTypeT>>(
	mesh_decoder, method, att_id, transform, decoder->bitstream_version());			mesh_decoder, method, att_id, transform, decoder->bitstream_version());
	if (ret)			if (ret) {
	return ret;			return ret;
				}
	// Otherwise try to create another prediction scheme.			// Otherwise try to create another prediction scheme.
	}			}
	// Create delta decoder.			// Create delta decoder.
	return std::unique_ptr<PredictionSchemeDecoder<DataTypeT, TransformT>>(			return std::unique_ptr<PredictionSchemeDecoder<DataTypeT, TransformT>>(
	new PredictionSchemeDeltaDecoder<DataTypeT, TransformT>(att, transform));			new PredictionSchemeDeltaDecoder<DataTypeT, TransformT>(att, transform));
	}			}

	// Create a prediction scheme using a default transform constructor.			// Create a prediction scheme using a default transform constructor.
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