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//-------------------------------------------------------------------------------------------------------------------------------------------------------------
//
// Metal/MTLIOCompressor.hpp
//
// Copyright 2020-2023 Apple Inc.
//
// 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.
//
//-------------------------------------------------------------------------------------------------------------------------------------------------------------
#pragma once
#include "MTLDefines.hpp"
#include "MTLHeaderBridge.hpp"
#include "MTLPrivate.hpp"
#include "MTLDevice.hpp"
#include <Foundation/Foundation.hpp>
namespace MTL
{
using IOCompresionContext=void*;
_MTL_ENUM(NS::Integer, IOCompressionStatus) {
IOCompressionStatusComplete = 0,
IOCompressionStatusError = 1,
};
size_t IOCompressionContextDefaultChunkSize();
IOCompresionContext IOCreateCompressionContext(const char* path, IOCompressionMethod type, size_t chunkSize);
void IOCompressionContextAppendData(IOCompresionContext context, const void* data, size_t size);
IOCompressionStatus IOFlushAndDestroyCompressionContext(IOCompresionContext context);
}
#if defined(MTL_PRIVATE_IMPLEMENTATION)
namespace MTL::Private {
MTL_DEF_FUNC(MTLIOCompressionContextDefaultChunkSize, size_t (*)(void));
MTL_DEF_FUNC( MTLIOCreateCompressionContext, void* (*)(const char*, MTL::IOCompressionMethod, size_t) );
MTL_DEF_FUNC( MTLIOCompressionContextAppendData, void (*)(void*, const void*, size_t) );
MTL_DEF_FUNC( MTLIOFlushAndDestroyCompressionContext, MTL::IOCompressionStatus (*)(void*) );
}
_NS_EXPORT size_t MTL::IOCompressionContextDefaultChunkSize()
{
return MTL::Private::MTLIOCompressionContextDefaultChunkSize();
}
_NS_EXPORT void* MTL::IOCreateCompressionContext(const char* path, IOCompressionMethod type, size_t chunkSize)
{
if ( MTL::Private::MTLIOCreateCompressionContext )
{
return MTL::Private::MTLIOCreateCompressionContext( path, type, chunkSize );
}
return nullptr;
}
_NS_EXPORT void MTL::IOCompressionContextAppendData(void* context, const void* data, size_t size)
{
if ( MTL::Private::MTLIOCompressionContextAppendData )
{
MTL::Private::MTLIOCompressionContextAppendData( context, data, size );
}
}
_NS_EXPORT MTL::IOCompressionStatus MTL::IOFlushAndDestroyCompressionContext(void* context)
{
if ( MTL::Private::MTLIOFlushAndDestroyCompressionContext )
{
return MTL::Private::MTLIOFlushAndDestroyCompressionContext( context );
}
return MTL::IOCompressionStatusError;
}
#endif
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