120 lines
4.2 KiB
C++
Executable File
120 lines
4.2 KiB
C++
Executable File
/*
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* Copyright (C) 2016 The Android Open Source Project
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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 TNT_FILAMENT_FILAMESHIO_MESHREADER_H
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#define TNT_FILAMENT_FILAMESHIO_MESHREADER_H
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#include <utils/Entity.h>
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#include <utils/CString.h>
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namespace filament {
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class Engine;
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class VertexBuffer;
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class IndexBuffer;
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class MaterialInstance;
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}
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namespace utils {
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class Path;
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}
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namespace filamesh {
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/**
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* This API can be used to read meshes stored in the "filamesh" format produced
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* by the command line tool of the same name. This file format is documented in
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* "docs/filamesh.md" in the Filament distribution.
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*/
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class MeshReader {
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public:
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using Callback = void(*)(void* buffer, size_t size, void* user);
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// Class to track material instances
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class MaterialRegistry {
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public:
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MaterialRegistry();
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MaterialRegistry(const MaterialRegistry& rhs);
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MaterialRegistry& operator=(const MaterialRegistry& rhs);
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~MaterialRegistry();
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MaterialRegistry(MaterialRegistry&&);
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MaterialRegistry& operator=(MaterialRegistry&&);
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filament::MaterialInstance* getMaterialInstance(const utils::CString& name);
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void registerMaterialInstance(const utils::CString& name,
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filament::MaterialInstance* materialInstance);
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void unregisterMaterialInstance(const utils::CString& name);
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void unregisterAll();
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std::size_t numRegistered() const noexcept;
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void getRegisteredMaterials(filament::MaterialInstance** materialList,
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utils::CString* materialNameList) const;
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void getRegisteredMaterials(filament::MaterialInstance** materialList) const;
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void getRegisteredMaterialNames(utils::CString* materialNameList) const;
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private:
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struct MaterialRegistryImpl;
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MaterialRegistryImpl* mImpl;
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};
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struct Mesh {
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utils::Entity renderable;
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filament::VertexBuffer* vertexBuffer = nullptr;
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filament::IndexBuffer* indexBuffer = nullptr;
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};
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/**
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* Loads a filamesh renderable from the specified file. The material registry
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* can be used to provide named materials. If a material found in the filamesh
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* file cannot be matched to a material in the registry, a default material is
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* used instead. The default material can be overridden by adding a material
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* named "DefaultMaterial" to the registry.
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*/
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static Mesh loadMeshFromFile(filament::Engine* engine,
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const utils::Path& path,
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MaterialRegistry& materials);
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/**
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* Loads a filamesh renderable from an in-memory buffer. The material registry
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* can be used to provide named materials. If a material found in the filamesh
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* file cannot be matched to a material in the registry, a default material is
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* used instead. The default material can be overridden by adding a material
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* named "DefaultMaterial" to the registry.
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*/
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static Mesh loadMeshFromBuffer(filament::Engine* engine,
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void const* data, Callback destructor, void* user,
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MaterialRegistry& materials);
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/**
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* Loads a filamesh renderable from an in-memory buffer. The material registry
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* can be used to provide named materials. All the primitives of the decoded
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* renderable are assigned the specified default material.
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*/
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static Mesh loadMeshFromBuffer(filament::Engine* engine,
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void const* data, Callback destructor, void* user,
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filament::MaterialInstance* defaultMaterial);
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};
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} // namespace filamesh
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#endif // TNT_FILAMENT_FILAMESHIO_MESHREADER_H
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