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56 lines
2.0 KiB
C++
56 lines
2.0 KiB
C++
// Copyright 2016 The Draco Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// The encoder compresses all attribute values using an order preserving
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// attribute encoder (that can still support quantization, prediction schems,
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// and other features).
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// The mesh connectivity data can be encoded using two modes that are controlled
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// using a global encoder options flag called "compress_connectivity"
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// 1. When "compress_connectivity" == true:
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// All point ids are first delta coded and then compressed using an entropy
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// coding.
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// 2. When "compress_connectivity" == false:
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// All point ids are encoded directly using either 8, 16, or 32 bits per
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// value based on the maximum point id value.
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#ifndef DRACO_COMPRESSION_MESH_MESH_SEQUENTIAL_ENCODER_H_
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#define DRACO_COMPRESSION_MESH_MESH_SEQUENTIAL_ENCODER_H_
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#include "compression/mesh/mesh_encoder.h"
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namespace draco {
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// Class that encodes mesh data using a simple binary representation of mesh's
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// connectivity and geometry.
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// TODO(ostava): Use a better name.
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class MeshSequentialEncoder : public MeshEncoder {
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public:
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MeshSequentialEncoder();
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uint8_t GetEncodingMethod() const override {
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return MESH_SEQUENTIAL_ENCODING;
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}
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protected:
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bool EncodeConnectivity() override;
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bool GenerateAttributesEncoder(int32_t att_id) override;
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private:
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// Returns false on error.
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bool CompressAndEncodeIndices();
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};
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} // namespace draco
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#endif // DRACO_COMPRESSION_MESH_MESH_SEQUENTIAL_ENCODER_H_
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