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73 lines
2.2 KiB
C++
73 lines
2.2 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_IO_OBJ_ENCODER_H_
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#define DRACO_IO_OBJ_ENCODER_H_
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#include "core/encoder_buffer.h"
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#include "mesh/mesh.h"
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namespace draco {
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// Class for encoding input draco::Mesh or draco::PointCloud into the Wavefront
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// OBJ format.
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class ObjEncoder {
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public:
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ObjEncoder();
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// Encodes the mesh or a point cloud and saves it into a file.
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// Returns false when either the encoding failed or when the file couldn't be
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// opened.
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bool EncodeToFile(const PointCloud &pc, const std::string &file_name);
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bool EncodeToFile(const Mesh &mesh, const std::string &file_name);
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// Encodes the mesh or the point cloud into a buffer.
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bool EncodeToBuffer(const PointCloud &pc, EncoderBuffer *out_buffer);
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bool EncodeToBuffer(const Mesh &mesh, EncoderBuffer *out_buffer);
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protected:
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bool EncodeInternal();
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EncoderBuffer *buffer() const { return out_buffer_; }
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bool ExitAndCleanup(bool return_value);
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private:
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bool EncodePositions();
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bool EncodeTextureCoordinates();
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bool EncodeNormals();
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bool EncodeFaces();
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bool EncodeFaceCorner(FaceIndex face_id, int local_corner_id);
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void EncodeFloat(float val);
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void EncodeFloatList(float *vals, int num_vals);
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void EncodeInt(int32_t val);
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// Various attributes used by the encoder. If an attribute is not used, it is
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// set to nullptr.
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const PointAttribute *pos_att_;
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const PointAttribute *tex_coord_att_;
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const PointAttribute *normal_att_;
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// Buffer used for encoding float/int numbers.
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char num_buffer_[20];
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EncoderBuffer *out_buffer_;
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const PointCloud *in_point_cloud_;
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const Mesh *in_mesh_;
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};
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} // namespace draco
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#endif // DRACO_IO_OBJ_ENCODER_H_
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