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/*
* Copyright (C) 2025 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "ModelObjectHeap.h"
#if ENABLE(GPU_PROCESS)
#include "RemoteDDMesh.h"
#include <wtf/TZoneMallocInlines.h>
#include <WebCore/DDMesh.h>
namespace WebKit::DDModel {
WTF_MAKE_TZONE_ALLOCATED_IMPL(ObjectHeap);
ObjectHeap::ObjectHeap()
{
weakPtrFactory().prepareForUseOnlyOnNonMainThread();
}
ObjectHeap::~ObjectHeap() = default;
void ObjectHeap::addObject(DDModelIdentifier identifier, RemoteDDMesh& mesh)
{
#if ENABLE(GPU_PROCESS_MODEL)
auto result = m_objects.add(identifier, Object { IPC::ScopedActiveMessageReceiveQueue<RemoteDDMesh> { Ref { mesh } } });
ASSERT_UNUSED(result, result.isNewEntry);
#else
UNUSED_PARAM(identifier);
UNUSED_PARAM(mesh);
#endif
}
void ObjectHeap::removeObject(DDModelIdentifier identifier)
{
auto result = m_objects.remove(identifier);
ASSERT_UNUSED(result, result);
}
void ObjectHeap::clear()
{
m_objects.clear();
}
WeakPtr<WebCore::DDModel::DDMesh> ObjectHeap::convertDDMeshFromBacking(DDModelIdentifier identifier)
{
#if ENABLE(GPU_PROCESS_MODEL)
auto iterator = m_objects.find(identifier);
if (iterator == m_objects.end() || !std::holds_alternative<IPC::ScopedActiveMessageReceiveQueue<RemoteDDMesh>>(iterator->value))
return nullptr;
return &std::get<IPC::ScopedActiveMessageReceiveQueue<RemoteDDMesh>>(iterator->value)->backing();
#else
UNUSED_PARAM(identifier);
return nullptr;
#endif
}
ObjectHeap::ExistsAndValid ObjectHeap::objectExistsAndValid(const WebCore::WebGPU::GPU& gpu, DDModelIdentifier identifier) const
{
ExistsAndValid result;
auto it = m_objects.find(identifier);
if (it == m_objects.end())
return result;
result.exists = true;
result.valid = WTF::switchOn(it->value, [&](std::monostate) -> bool {
return false;
},
[&](auto&) -> bool {
return true;
});
return result;
}
}
#endif // HAVE(GPU_PROCESS)
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