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/*
* Copyright (C) 2021-2023 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 "RemoteBuffer.h"
#if ENABLE(GPU_PROCESS)
#include "RemoteBufferMessages.h"
#include "StreamServerConnection.h"
#include "WebGPUObjectHeap.h"
namespace WebKit {
RemoteBuffer::RemoteBuffer(WebCore::WebGPU::Buffer& buffer, WebGPU::ObjectHeap& objectHeap, Ref<IPC::StreamServerConnection>&& streamConnection, WebGPUIdentifier identifier)
: m_backing(buffer)
, m_objectHeap(objectHeap)
, m_streamConnection(WTFMove(streamConnection))
, m_identifier(identifier)
{
m_streamConnection->startReceivingMessages(*this, Messages::RemoteBuffer::messageReceiverName(), m_identifier.toUInt64());
}
RemoteBuffer::~RemoteBuffer() = default;
void RemoteBuffer::stopListeningForIPC()
{
m_streamConnection->stopReceivingMessages(Messages::RemoteBuffer::messageReceiverName(), m_identifier.toUInt64());
}
void RemoteBuffer::mapAsync(WebCore::WebGPU::MapModeFlags mapModeFlags, WebCore::WebGPU::Size64 offset, std::optional<WebCore::WebGPU::Size64> size, CompletionHandler<void(std::optional<Vector<uint8_t>>&&)>&& callback)
{
m_isMapped = true;
m_mapModeFlags = mapModeFlags;
m_backing->mapAsync(mapModeFlags, offset, size, [offset, size, protectedThis = Ref<RemoteBuffer>(*this), callback = WTFMove(callback)] (bool success) mutable {
if (!success) {
callback(std::nullopt);
return;
}
auto mappedRange = protectedThis->m_backing->getMappedRange(offset, size);
protectedThis->m_mappedRange = mappedRange;
callback(Vector<uint8_t>(static_cast<const uint8_t*>(mappedRange.source), mappedRange.byteLength));
});
}
void RemoteBuffer::getMappedRange(WebCore::WebGPU::Size64 offset, std::optional<WebCore::WebGPU::Size64> size, CompletionHandler<void(std::optional<Vector<uint8_t>>&&)>&& callback)
{
auto mappedRange = m_backing->getMappedRange(offset, size);
m_mappedRange = mappedRange;
m_mapModeFlags = { WebCore::WebGPU::MapMode::Write };
m_isMapped = true;
callback(Vector<uint8_t>(static_cast<const uint8_t*>(mappedRange.source), mappedRange.byteLength));
}
void RemoteBuffer::unmap(Vector<uint8_t>&& data)
{
if (!m_mappedRange || m_mappedRange->byteLength < data.size())
return;
ASSERT(m_isMapped);
if (m_mapModeFlags.contains(WebCore::WebGPU::MapMode::Write))
memcpy(m_mappedRange->source, data.data(), data.size());
m_backing->unmap();
m_isMapped = false;
m_mappedRange = std::nullopt;
m_mapModeFlags = { };
}
void RemoteBuffer::destroy()
{
m_backing->destroy();
}
void RemoteBuffer::destruct()
{
m_objectHeap.removeObject(m_identifier);
}
void RemoteBuffer::setLabel(String&& label)
{
m_backing->setLabel(WTFMove(label));
}
} // namespace WebKit
#endif // ENABLE(GPU_PROCESS)
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