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72 lines
2.6 KiB
C++
72 lines
2.6 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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#ifndef DRACO_COMPRESSION_MESH_MESH_EDGEBREAKER_ENCODER_H_
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#define DRACO_COMPRESSION_MESH_MESH_EDGEBREAKER_ENCODER_H_
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#include <unordered_map>
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#include "compression/mesh/mesh_edgebreaker_encoder_impl_interface.h"
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#include "compression/mesh/mesh_edgebreaker_shared.h"
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#include "compression/mesh/mesh_encoder.h"
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#include "mesh/corner_table.h"
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namespace draco {
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// Class implements the edge breaker geometry compression method as described
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// in "3D Compression Made Simple: Edgebreaker on a Corner-Table" by Rossignac
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// at al.'01. http://www.cc.gatech.edu/~jarek/papers/CornerTableSMI.pdf
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class MeshEdgeBreakerEncoder : public MeshEncoder {
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public:
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MeshEdgeBreakerEncoder();
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const CornerTable *GetCornerTable() const override {
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return impl_->GetCornerTable();
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}
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const MeshAttributeCornerTable *GetAttributeCornerTable(
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int att_id) const override {
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return impl_->GetAttributeCornerTable(att_id);
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}
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const MeshAttributeIndicesEncodingData *GetAttributeEncodingData(
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int att_id) const override {
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return impl_->GetAttributeEncodingData(att_id);
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}
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uint8_t GetEncodingMethod() const override {
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return MESH_EDGEBREAKER_ENCODING;
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}
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protected:
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bool InitializeEncoder() override;
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bool EncodeConnectivity() override;
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bool GenerateAttributesEncoder(int32_t att_id) override;
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bool EncodeAttributesEncoderIdentifier(int32_t att_encoder_id) override;
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private:
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// The actual implementation of the edge breaker method. The implementations
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// are in general specializations of a template class
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// MeshEdgeBreakerEncoderImpl where the template arguments control encoding
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// of the connectivity data. The actual implementation is selected in this
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// class based on the provided encoding options. Because this choice is done
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// in run-time, the actual implementation has to be hidden behind the
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// abstract interface MeshEdgeBreakerEncoderImplInterface.
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std::unique_ptr<MeshEdgeBreakerEncoderImplInterface> impl_;
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};
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} // namespace draco
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#endif // DRACO_COMPRESSION_MESH_MESH_EDGEBREAKER_ENCODER_H_
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