Differential D4501 Diff 14126 extern/gltf-draco/draco/src/draco/compression/mesh/mesh_sequential_encoder.h

Changeset View

Standalone View

extern/gltf-draco/draco/src/draco/compression/mesh/mesh_sequential_encoder.h

This file was added.

				// Copyright 2016 The Draco Authors.
				//
				// 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.
				//
				// The encoder compresses all attribute values using an order preserving
				// attribute encoder (that can still support quantization, prediction schemes,
				// and other features).
				// The mesh connectivity data can be encoded using two modes that are controlled
				// using a global encoder options flag called "compress_connectivity"
				// 1. When "compress_connectivity" == true:
				// All point ids are first delta coded and then compressed using an entropy
				// coding.
				// 2. When "compress_connectivity" == false:
				// All point ids are encoded directly using either 8, 16, or 32 bits per
				// value based on the maximum point id value.

				#ifndef DRACO_COMPRESSION_MESH_MESH_SEQUENTIAL_ENCODER_H_
				#define DRACO_COMPRESSION_MESH_MESH_SEQUENTIAL_ENCODER_H_

				#include "draco/compression/mesh/mesh_encoder.h"

				namespace draco {

				// Class that encodes mesh data using a simple binary representation of mesh's
				// connectivity and geometry.
				// TODO(ostava): Use a better name.
				class MeshSequentialEncoder : public MeshEncoder {
				public:
				MeshSequentialEncoder();
				uint8_t GetEncodingMethod() const override {
				return MESH_SEQUENTIAL_ENCODING;
				}

				protected:
				bool EncodeConnectivity() override;
				bool GenerateAttributesEncoder(int32_t att_id) override;
				void ComputeNumberOfEncodedPoints() override;
				void ComputeNumberOfEncodedFaces() override;

				private:
				// Returns false on error.
				bool CompressAndEncodeIndices();
				};

				} // namespace draco

				#endif // DRACO_COMPRESSION_MESH_MESH_SEQUENTIAL_ENCODER_H_