1 files changed, 57 insertions, 0 deletions
diff --git a/extern/draco/draco/src/draco/compression/mesh/mesh_edgebreaker_encoder_impl_interface.h b/extern/draco/draco/src/draco/compression/mesh/mesh_edgebreaker_encoder_impl_interface.h
new file mode 100644
index 00000000000..627d5126296
--- /dev/null
+++ b/extern/draco/draco/src/draco/compression/mesh/mesh_edgebreaker_encoder_impl_interface.h
@@ -0,0 +1,57 @@
+// 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.
+//
+#ifndef DRACO_COMPRESSION_MESH_MESH_EDGEBREAKER_ENCODER_IMPL_INTERFACE_H_
+#define DRACO_COMPRESSION_MESH_MESH_EDGEBREAKER_ENCODER_IMPL_INTERFACE_H_
+
+#include "draco/compression/attributes/mesh_attribute_indices_encoding_data.h"
+#include "draco/mesh/corner_table.h"
+#include "draco/mesh/mesh_attribute_corner_table.h"
+
+namespace draco {
+
+// Forward declaration is necessary here to avoid circular dependencies.
+class MeshEdgebreakerEncoder;
+
+// Abstract interface used by MeshEdgebreakerEncoder to interact with the actual
+// implementation of the edgebreaker method. The implementations are in general
+// specializations of a template class MeshEdgebreakerEncoderImpl where the
+// template arguments control encoding of the connectivity data. Because the
+// choice of the implementation is done in run-time, we need to hide it behind
+// the abstract interface MeshEdgebreakerEncoderImplInterface.
+class MeshEdgebreakerEncoderImplInterface {
+ public:
+  virtual ~MeshEdgebreakerEncoderImplInterface() = default;
+  virtual bool Init(MeshEdgebreakerEncoder *encoder) = 0;
+
+  virtual const MeshAttributeCornerTable *GetAttributeCornerTable(
+      int att_id) const = 0;
+  virtual const MeshAttributeIndicesEncodingData *GetAttributeEncodingData(
+      int att_id) const = 0;
+  virtual bool GenerateAttributesEncoder(int32_t att_id) = 0;
+  virtual bool EncodeAttributesEncoderIdentifier(int32_t att_encoder_id) = 0;
+  virtual Status EncodeConnectivity() = 0;
+
+  // Returns corner table of the encoded mesh.
+  virtual const CornerTable *GetCornerTable() const = 0;
+
+  // Returns true if a given face has been already encoded.
+  virtual bool IsFaceEncoded(FaceIndex fi) const = 0;
+
+  virtual MeshEdgebreakerEncoder *GetEncoder() const = 0;
+};
+
+}  // namespace draco
+
+#endif  // DRACO_COMPRESSION_MESH_MESH_EDGEBREAKER_ENCODER_IMPL_INTERFACE_H_