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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"
#if ENABLE(GPU_PROCESS)
#include "RemoteSnapshotRecorder.h"
#include "Logging.h"
#include "RemoteGraphicsContextMessages.h"
#include "RemoteSnapshot.h"
#include "RemoteSnapshotRecorderMessages.h"
#define MESSAGE_CHECK(assertion) MESSAGE_CHECK_BASE(assertion, m_renderingBackend->streamConnection());
namespace WebKit {
using namespace WebCore;
Ref<RemoteSnapshotRecorder> RemoteSnapshotRecorder::create(RemoteSnapshotRecorderIdentifier identifier, RemoteSnapshot& snapshot, RemoteRenderingBackend& renderingBackend)
{
Ref instance = adoptRef(*new RemoteSnapshotRecorder(makeUniqueRef<DisplayList::RecorderImpl>(FloatSize { }), identifier, snapshot, renderingBackend));
instance->startListeningForIPC();
return instance;
}
RemoteSnapshotRecorder::RemoteSnapshotRecorder(UniqueRef<DisplayList::RecorderImpl>&& recorder, RemoteSnapshotRecorderIdentifier identifier, RemoteSnapshot& snapshot, RemoteRenderingBackend& renderingBackend)
: RemoteGraphicsContext(recorder, renderingBackend)
, m_snapshot(snapshot)
, m_recorder(WTFMove(recorder))
, m_identifier(identifier)
{
}
RemoteSnapshotRecorder::~RemoteSnapshotRecorder() = default;
void RemoteSnapshotRecorder::startListeningForIPC()
{
m_renderingBackend->streamConnection().startReceivingMessages(*this, Messages::RemoteGraphicsContext::messageReceiverName(), m_identifier.toUInt64());
m_renderingBackend->streamConnection().startReceivingMessages(*this, Messages::RemoteSnapshotRecorder::messageReceiverName(), m_identifier.toUInt64());
}
void RemoteSnapshotRecorder::stopListeningForIPC()
{
m_renderingBackend->streamConnection().stopReceivingMessages(Messages::RemoteGraphicsContext::messageReceiverName(), m_identifier.toUInt64());
m_renderingBackend->streamConnection().stopReceivingMessages(Messages::RemoteSnapshotRecorder::messageReceiverName(), m_identifier.toUInt64());
}
Ref<RemoteSnapshot> RemoteSnapshotRecorder::snapshot() const
{
return m_snapshot;
}
void RemoteSnapshotRecorder::drawSnapshotFrame(FrameIdentifier frameIdentifier)
{
bool result = m_snapshot->addFrameReference(frameIdentifier);
MESSAGE_CHECK(result);
m_recorder->drawPlaceholder([snapshot = m_snapshot, frameIdentifier] (GraphicsContext& context) {
bool result = snapshot->applyFrame(frameIdentifier, context);
ASSERT_UNUSED(result, result); // Programming error, consistency checked with isComplete().
});
}
}
#undef MESSAGE_CHECK
#endif
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