MRIOFormatsRegistry.h

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#pragma once
#include "MRMeshFwd.h"
#include "MRExpected.h"
#include "MRIOFilters.h"
#include "MRMeshLoadSettings.h"
#include "MRProgressCallback.h"
 
#include <filesystem>
 
namespace MR
{
 
namespace MeshLoad
{
 
 
using MeshLoader = Expected<MR::Mesh>( * )( const std::filesystem::path&, const MeshLoadSettings& );
using MeshStreamLoader = Expected<MR::Mesh>( * )( std::istream&, const MeshLoadSettings& );
 
struct NamedMeshLoader
{
    IOFilter filter;
    MeshLoader loader{ nullptr };
    MeshStreamLoader streamLoader{ nullptr };
};
 
MRMESH_API MeshLoader getMeshLoader( IOFilter filter );
MRMESH_API MeshStreamLoader getMeshStreamLoader( IOFilter filter );
MRMESH_API IOFilters getFilters();
 
MRMESH_API void setMeshLoader( IOFilter filter, MeshLoader loader );
MRMESH_API void setMeshStreamLoader( IOFilter filter, MeshStreamLoader streamLoader );
 
#define MR_ADD_MESH_LOADER( filter, loader ) \
MR::MeshLoad::MeshLoaderAdder __meshLoaderAdder_##loader(MR::MeshLoad::NamedMeshLoader{filter,static_cast<MR::MeshLoad::MeshLoader>(loader),static_cast<MR::MeshLoad::MeshStreamLoader>(loader)});\
 
class MeshLoaderAdder
{
public:
    MRMESH_API MeshLoaderAdder( const NamedMeshLoader& loader );
};
 
 
}
 
using ObjectPtr = std::shared_ptr<Object>;
 
namespace ObjectLoad
{
 
using ObjectLoader = Expected<std::vector<ObjectPtr>>( * )( const std::filesystem::path&, std::string*, ProgressCallback );
 
MRMESH_API ObjectLoader getObjectLoader( IOFilter filter );
MRMESH_API void setObjectLoader( IOFilter filter, ObjectLoader loader );
MRMESH_API IOFilters getFilters();
 
} // namespace ObjectLoad
 
namespace AsyncObjectLoad
{
 
using PostLoadCallback = std::function<void ( Expected<std::vector<ObjectPtr>> )>;
using AsyncObjectLoader = void( * )( const std::filesystem::path&, std::string*, PostLoadCallback, ProgressCallback );
 
MRMESH_API AsyncObjectLoader getObjectLoader( IOFilter filter );
MRMESH_API void setObjectLoader( IOFilter filter, AsyncObjectLoader loader );
MRMESH_API IOFilters getFilters();
 
}
 
}