juce_ARACommon.cpp

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/*
  ==============================================================================
 
   This file is part of the JUCE library.
   Copyright (c) 2022 - Raw Material Software Limited
 
   JUCE is an open source library subject to commercial or open-source
   licensing.
 
   By using JUCE, you agree to the terms of both the JUCE 7 End-User License
   Agreement and JUCE Privacy Policy.
 
   End User License Agreement: www.juce.com/juce-7-licence
   Privacy Policy: www.juce.com/juce-privacy-policy
 
   Or: You may also use this code under the terms of the GPL v3 (see
   www.gnu.org/licenses).
 
   JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
   EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
   DISCLAIMED.
 
  ==============================================================================
*/
 
#if (JUCE_PLUGINHOST_ARA && (JUCE_PLUGINHOST_VST3 || JUCE_PLUGINHOST_AU) && (JUCE_MAC || JUCE_WINDOWS))
 
#include <ARA_Library/Debug/ARADebug.h>
 
namespace juce
{
 
static void dummyARAInterfaceAssert (ARA::ARAAssertCategory, const void*, const char*)
{}
 
static ARA::ARAInterfaceConfiguration createInterfaceConfig (const ARA::ARAFactory* araFactory)
{
    static auto* assertFunction = &dummyARAInterfaceAssert;
 
   #if ARA_VALIDATE_API_CALLS
    assertFunction = &::ARA::ARAInterfaceAssert;
    static std::once_flag flag;
    std::call_once (flag, [] { ARA::ARASetExternalAssertReference (&assertFunction); });
   #endif
 
    return makeARASizedStruct (&ARA::ARAInterfaceConfiguration::assertFunctionAddress,
                               jmin (araFactory->highestSupportedApiGeneration, (ARA::ARAAPIGeneration) ARA::kARAAPIGeneration_2_X_Draft),
                               &assertFunction);
}
 
static std::shared_ptr<const ARA::ARAFactory> getOrCreateARAFactory (const ARA::ARAFactory* ptr,
                                                                     std::function<void (const ARA::ARAFactory*)> onDelete)
{
    JUCE_ASSERT_MESSAGE_THREAD
 
    static std::unordered_map<const ARA::ARAFactory*, std::weak_ptr<const ARA::ARAFactory>> cache;
 
    auto& cachePtr = cache[ptr];
 
    if (const auto obj = cachePtr.lock())
        return obj;
 
    const auto interfaceConfig = createInterfaceConfig (ptr);
    ptr->initializeARAWithConfiguration (&interfaceConfig);
    const auto obj = std::shared_ptr<const ARA::ARAFactory> (ptr, [deleter = std::move (onDelete)] (const ARA::ARAFactory* factory)
                                                             {
                                                                 factory->uninitializeARA();
                                                                 deleter (factory);
                                                             });
    cachePtr = obj;
    return obj;
}
 
}
 
#endif