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RemoteGraphicsContextGLProxy.cpp
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RemoteGraphicsContextGLProxy.cpp
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/*
* Copyright (C) 2020 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 "RemoteGraphicsContextGLProxy.h"
#if ENABLE(GPU_PROCESS) && ENABLE(WEBGL)
#include "GPUConnectionToWebProcess.h"
#include "GPUProcessConnection.h"
#include "RemoteGraphicsContextGLMessages.h"
#include "RemoteGraphicsContextGLProxyMessages.h"
#include "WebProcess.h"
#include <WebCore/ImageBuffer.h>
#include <wtf/StdLibExtras.h>
#if ENABLE(VIDEO)
#include "RemoteVideoFrameObjectHeapProxy.h"
#include "RemoteVideoFrameProxy.h"
#include <WebCore/MediaPlayer.h>
#endif
namespace WebKit {
using namespace WebCore;
static constexpr size_t defaultStreamSize = 1 << 21;
static constexpr size_t readPixelsInlineSizeLimit = 64 * KB;
namespace {
template<typename T0, typename T1, typename S0, typename S1>
IPC::ArrayReferenceTuple<T0, T1> toArrayReferenceTuple(GCGLSpanTuple<const S0, const S1> spanTuple)
{
return IPC::ArrayReferenceTuple {
reinterpret_cast<const T0*>(spanTuple.data0),
reinterpret_cast<const T1*>(spanTuple.data1),
spanTuple.bufSize };
}
template<typename T0, typename T1, typename T2, typename S0, typename S1, typename S2>
IPC::ArrayReferenceTuple<T0, T1, T2> toArrayReferenceTuple(GCGLSpanTuple<const S0, const S1, const S2> spanTuple)
{
return IPC::ArrayReferenceTuple {
reinterpret_cast<const T0*>(spanTuple.data0),
reinterpret_cast<const T1*>(spanTuple.data1),
reinterpret_cast<const T2*>(spanTuple.data2),
spanTuple.bufSize };
}
template<typename T0, typename T1, typename T2, typename T3, typename S0, typename S1, typename S2, typename S3>
IPC::ArrayReferenceTuple<T0, T1, T2, T3> toArrayReferenceTuple(GCGLSpanTuple<const S0, const S1, const S2, const S3> spanTuple)
{
return IPC::ArrayReferenceTuple {
reinterpret_cast<const T0*>(spanTuple.data0),
reinterpret_cast<const T1*>(spanTuple.data1),
reinterpret_cast<const T2*>(spanTuple.data2),
reinterpret_cast<const T3*>(spanTuple.data3),
spanTuple.bufSize };
}
template<typename T0, typename T1, typename T2, typename T3, typename T4, typename S0, typename S1, typename S2, typename S3, typename S4>
IPC::ArrayReferenceTuple<T0, T1, T2, T3, T4> toArrayReferenceTuple(GCGLSpanTuple<const S0, const S1, const S2, const S3, const S4> spanTuple)
{
return IPC::ArrayReferenceTuple {
reinterpret_cast<const T0*>(spanTuple.data0),
reinterpret_cast<const T1*>(spanTuple.data1),
reinterpret_cast<const T2*>(spanTuple.data2),
reinterpret_cast<const T3*>(spanTuple.data3),
reinterpret_cast<const T4*>(spanTuple.data4),
spanTuple.bufSize };
}
}
RemoteGraphicsContextGLProxy::RemoteGraphicsContextGLProxy(GPUProcessConnection& gpuProcessConnection, const GraphicsContextGLAttributes& attributes, RenderingBackendIdentifier renderingBackend)
: GraphicsContextGL(attributes)
, m_gpuProcessConnection(&gpuProcessConnection)
, m_streamConnection(gpuProcessConnection.connection(), defaultStreamSize)
{
m_gpuProcessConnection->addClient(*this);
m_gpuProcessConnection->messageReceiverMap().addMessageReceiver(Messages::RemoteGraphicsContextGLProxy::messageReceiverName(), m_graphicsContextGLIdentifier.toUInt64(), *this);
m_gpuProcessConnection->connection().send(Messages::GPUConnectionToWebProcess::CreateGraphicsContextGL(attributes, m_graphicsContextGLIdentifier, renderingBackend, m_streamConnection.streamBuffer()), 0, IPC::SendOption::DispatchMessageEvenWhenWaitingForSyncReply);
m_streamConnection.open();
// TODO: We must wait until initialized, because at the moment we cannot receive IPC messages
// during wait while in synchronous stream send. Should be fixed as part of https://bugs.webkit.org/show_bug.cgi?id=217211.
waitUntilInitialized();
}
RemoteGraphicsContextGLProxy::~RemoteGraphicsContextGLProxy()
{
disconnectGpuProcessIfNeeded();
}
void RemoteGraphicsContextGLProxy::setContextVisibility(bool)
{
notImplemented();
}
bool RemoteGraphicsContextGLProxy::isGLES2Compliant() const
{
#if ENABLE(WEBGL2)
return contextAttributes().webGLVersion == GraphicsContextGLWebGLVersion::WebGL2;
#else
return false;
#endif
}
void RemoteGraphicsContextGLProxy::markContextChanged()
{
// FIXME: The caller should track this state.
if (m_layerComposited) {
GraphicsContextGL::markContextChanged();
if (isContextLost())
return;
auto sendResult = send(Messages::RemoteGraphicsContextGL::MarkContextChanged());
if (!sendResult)
markContextLost();
}
}
bool RemoteGraphicsContextGLProxy::supportsExtension(const String& name)
{
waitUntilInitialized();
return m_availableExtensions.contains(name) || m_requestableExtensions.contains(name);
}
void RemoteGraphicsContextGLProxy::ensureExtensionEnabled(const String& name)
{
waitUntilInitialized();
if (m_requestableExtensions.contains(name) && !m_enabledExtensions.contains(name)) {
m_enabledExtensions.add(name);
if (isContextLost())
return;
auto sendResult = send(Messages::RemoteGraphicsContextGL::EnsureExtensionEnabled(name));
if (!sendResult)
markContextLost();
}
}
bool RemoteGraphicsContextGLProxy::isExtensionEnabled(const String& name)
{
waitUntilInitialized();
return m_availableExtensions.contains(name) || m_enabledExtensions.contains(name);
}
void RemoteGraphicsContextGLProxy::initialize(const String& availableExtensions, const String& requestableExtensions)
{
for (auto extension : StringView(availableExtensions).split(' '))
m_availableExtensions.add(extension.toString());
for (auto extension : StringView(requestableExtensions).split(' '))
m_requestableExtensions.add(extension.toString());
}
void RemoteGraphicsContextGLProxy::reshape(int width, int height)
{
if (isContextLost())
return;
m_currentWidth = width;
m_currentHeight = height;
auto sendResult = send(Messages::RemoteGraphicsContextGL::Reshape(width, height));
if (!sendResult)
markContextLost();
}
void RemoteGraphicsContextGLProxy::paintRenderingResultsToCanvas(ImageBuffer& buffer)
{
if (isContextLost())
return;
// FIXME: the buffer is "relatively empty" always, but for consistency, we need to ensure
// no pending operations are targeted for the `buffer`.
buffer.flushDrawingContext();
// FIXME: We cannot synchronize so that we would know no pending operations are using the `buffer`.
// FIXME: Currently RemoteImageBufferProxy::getPixelBuffer et al do not wait for the flushes of the images
// inside the display lists. Rather, it assumes that processing its sequence (e.g. the display list) will equal to read flush being
// fulfilled. For below, we cannot create a new flush id since we go through different sequence (RemoteGraphicsContextGL sequence)
// FIXME: Maybe implement IPC::Fence or something similar.
auto sendResult = sendSync(Messages::RemoteGraphicsContextGL::PaintRenderingResultsToCanvas(buffer.renderingResourceIdentifier()), Messages::RemoteGraphicsContextGL::PaintRenderingResultsToCanvas::Reply());
if (!sendResult) {
markContextLost();
return;
}
}
void RemoteGraphicsContextGLProxy::paintCompositedResultsToCanvas(ImageBuffer& buffer)
{
if (isContextLost())
return;
buffer.flushDrawingContext();
auto sendResult = sendSync(Messages::RemoteGraphicsContextGL::PaintCompositedResultsToCanvas(buffer.renderingResourceIdentifier()), Messages::RemoteGraphicsContextGL::PaintCompositedResultsToCanvas::Reply());
if (!sendResult) {
markContextLost();
return;
}
}
#if ENABLE(MEDIA_STREAM)
RefPtr<WebCore::VideoFrame> RemoteGraphicsContextGLProxy::paintCompositedResultsToVideoFrame()
{
if (isContextLost())
return nullptr;
std::optional<RemoteVideoFrameProxy::Properties> result;
auto sendResult = sendSync(Messages::RemoteGraphicsContextGL::PaintCompositedResultsToVideoFrame(), Messages::RemoteGraphicsContextGL::PaintCompositedResultsToVideoFrame::Reply(result));
if (!sendResult) {
markContextLost();
return nullptr;
}
if (!result)
return nullptr;
return RemoteVideoFrameProxy::create(m_gpuProcessConnection->connection(), m_gpuProcessConnection->videoFrameObjectHeapProxy(), WTFMove(*result));
}
#endif
#if ENABLE(VIDEO)
bool RemoteGraphicsContextGLProxy::copyTextureFromMedia(MediaPlayer& mediaPlayer, PlatformGLObject texture, GCGLenum target, GCGLint level, GCGLenum internalFormat, GCGLenum format, GCGLenum type, bool premultiplyAlpha, bool flipY)
{
if (isContextLost())
return false;
auto videoFrame = mediaPlayer.videoFrameForCurrentTime();
// Video in WP while WebGL in GPUP is not supported.
if (!videoFrame || !is<RemoteVideoFrameProxy>(*videoFrame))
return false;
bool result = false;
auto sendResult = sendSync(Messages::RemoteGraphicsContextGL::CopyTextureFromVideoFrame(downcast<RemoteVideoFrameProxy>(*videoFrame).newReadReference(), texture, target, level, internalFormat, format, type, premultiplyAlpha, flipY), Messages::RemoteGraphicsContextGL::CopyTextureFromVideoFrame::Reply(result));
if (!sendResult) {
markContextLost();
return false;
}
return result;
}
#endif
void RemoteGraphicsContextGLProxy::synthesizeGLError(GCGLenum error)
{
if (!isContextLost()) {
auto sendResult = send(Messages::RemoteGraphicsContextGL::SynthesizeGLError(error));
if (!sendResult)
markContextLost();
return;
}
}
GCGLenum RemoteGraphicsContextGLProxy::getError()
{
if (!isContextLost()) {
uint32_t returnValue = 0;
auto sendResult = sendSync(Messages::RemoteGraphicsContextGL::GetError(), Messages::RemoteGraphicsContextGL::GetError::Reply(returnValue));
if (!sendResult)
markContextLost();
return static_cast<GCGLenum>(returnValue);
}
return NO_ERROR;
}
void RemoteGraphicsContextGLProxy::simulateEventForTesting(SimulatedEventForTesting event)
{
if (!isContextLost()) {
auto sendResult = send(Messages::RemoteGraphicsContextGL::SimulateEventForTesting(event));
if (!sendResult)
markContextLost();
}
}
void RemoteGraphicsContextGLProxy::readnPixels(GCGLint x, GCGLint y, GCGLsizei width, GCGLsizei height, GCGLenum format, GCGLenum type, GCGLSpan<GCGLvoid> data)
{
if (data.size() > readPixelsInlineSizeLimit) {
readnPixelsSharedMemory(x, y, width, height, format, type, data);
return;
}
IPC::ArrayReference<uint8_t> dataReply;
if (!isContextLost()) {
auto sendResult = sendSync(Messages::RemoteGraphicsContextGL::ReadnPixels0(x, y, width, height, format, type, IPC::ArrayReference<uint8_t>(reinterpret_cast<uint8_t*>(data.data), data.bufSize)), Messages::RemoteGraphicsContextGL::ReadnPixels0::Reply(dataReply));
if (!sendResult)
markContextLost();
else
memcpy(data.data, dataReply.data(), data.bufSize * sizeof(uint8_t));
}
}
void RemoteGraphicsContextGLProxy::readnPixels(GCGLint x, GCGLint y, GCGLsizei width, GCGLsizei height, GCGLenum format, GCGLenum type, GCGLintptr offset)
{
if (!isContextLost()) {
auto sendResult = send(Messages::RemoteGraphicsContextGL::ReadnPixels1(x, y, width, height, format, type, static_cast<uint64_t>(offset)));
if (!sendResult)
markContextLost();
}
}
void RemoteGraphicsContextGLProxy::readnPixelsSharedMemory(GCGLint x, GCGLint y, GCGLsizei width, GCGLsizei height, GCGLenum format, GCGLenum type, GCGLSpan<GCGLvoid> data)
{
if (!isContextLost()) {
auto buffer = SharedMemory::allocate(data.size());
if (!buffer) {
markContextLost();
return;
}
SharedMemory::Handle handle;
buffer->createHandle(handle, SharedMemory::Protection::ReadWrite);
if (handle.isNull()) {
markContextLost();
return;
}
memcpy(buffer->data(), data.data, data.bufSize);
bool success = false;
auto sendResult = sendSync(Messages::RemoteGraphicsContextGL::ReadnPixels2(x, y, width, height, format, type, WTFMove(handle)), Messages::RemoteGraphicsContextGL::ReadnPixels2::Reply(success));
if (sendResult) {
if (success)
memcpy(data.data, buffer->data(), data.bufSize);
} else
markContextLost();
}
}
void RemoteGraphicsContextGLProxy::multiDrawArraysANGLE(GCGLenum mode, GCGLSpanTuple<const GCGLint, const GCGLsizei> firstsAndCounts)
{
if (!isContextLost()) {
auto sendResult = send(Messages::RemoteGraphicsContextGL::MultiDrawArraysANGLE(mode, toArrayReferenceTuple<int32_t, int32_t>(firstsAndCounts)));
if (!sendResult)
markContextLost();
}
}
void RemoteGraphicsContextGLProxy::multiDrawArraysInstancedANGLE(GCGLenum mode, GCGLSpanTuple<const GCGLint, const GCGLsizei, const GCGLsizei> firstsCountsAndInstanceCounts)
{
if (!isContextLost()) {
auto sendResult = send(Messages::RemoteGraphicsContextGL::MultiDrawArraysInstancedANGLE(mode, toArrayReferenceTuple<int32_t, int32_t, int32_t>(firstsCountsAndInstanceCounts)));
if (!sendResult)
markContextLost();
}
}
void RemoteGraphicsContextGLProxy::multiDrawElementsANGLE(GCGLenum mode, GCGLSpanTuple<const GCGLsizei, const GCGLsizei> countsAndOffsets, GCGLenum type)
{
if (!isContextLost()) {
auto sendResult = send(Messages::RemoteGraphicsContextGL::MultiDrawElementsANGLE(mode, toArrayReferenceTuple<int32_t, int32_t>(countsAndOffsets), type));
if (!sendResult)
markContextLost();
}
}
void RemoteGraphicsContextGLProxy::multiDrawElementsInstancedANGLE(GCGLenum mode, GCGLSpanTuple<const GCGLsizei, const GCGLsizei, const GCGLsizei> countsOffsetsAndInstanceCounts, GCGLenum type)
{
if (!isContextLost()) {
auto sendResult = send(Messages::RemoteGraphicsContextGL::MultiDrawElementsInstancedANGLE(mode, toArrayReferenceTuple<int32_t, int32_t, int32_t>(countsOffsetsAndInstanceCounts), type));
if (!sendResult)
markContextLost();
}
}
void RemoteGraphicsContextGLProxy::multiDrawArraysInstancedBaseInstanceANGLE(GCGLenum mode, GCGLSpanTuple<const GCGLint, const GCGLsizei, const GCGLsizei, const GCGLuint> firstsCountsInstanceCountsAndBaseInstances)
{
if (!isContextLost()) {
auto sendResult = send(Messages::RemoteGraphicsContextGL::MultiDrawArraysInstancedBaseInstanceANGLE(mode, toArrayReferenceTuple<int32_t, int32_t, int32_t, uint32_t>(firstsCountsInstanceCountsAndBaseInstances)));
if (!sendResult)
markContextLost();
}
}
void RemoteGraphicsContextGLProxy::multiDrawElementsInstancedBaseVertexBaseInstanceANGLE(GCGLenum mode, GCGLSpanTuple<const GCGLsizei, const GCGLsizei, const GCGLsizei, const GCGLint, const GCGLuint> countsOffsetsInstanceCountsBaseVerticesAndBaseInstances, GCGLenum type)
{
if (!isContextLost()) {
auto sendResult = send(Messages::RemoteGraphicsContextGL::MultiDrawElementsInstancedBaseVertexBaseInstanceANGLE(mode, toArrayReferenceTuple<int32_t, int32_t, int32_t, int32_t, uint32_t>(countsOffsetsInstanceCountsBaseVerticesAndBaseInstances), type));
if (!sendResult)
markContextLost();
}
}
RefPtr<WebCore::PixelBuffer> RemoteGraphicsContextGLProxy::paintRenderingResultsToPixelBuffer()
{
std::optional<IPC::PixelBufferReference> returnValue;
if (!isContextLost()) {
auto sendResult = sendSync(Messages::RemoteGraphicsContextGL::PaintRenderingResultsToPixelBuffer(), Messages::RemoteGraphicsContextGL::PaintRenderingResultsToPixelBuffer::Reply(returnValue));
if (!sendResult)
markContextLost();
}
if (!returnValue)
return nullptr;
return returnValue->takePixelBuffer();
}
void RemoteGraphicsContextGLProxy::wasCreated(bool didSucceed, IPC::Semaphore&& wakeUpSemaphore, IPC::Semaphore&& clientWaitSemaphore, String&& availableExtensions, String&& requestedExtensions)
{
if (isContextLost())
return;
if (!didSucceed) {
markContextLost();
return;
}
ASSERT(!m_didInitialize);
m_streamConnection.setSemaphores(WTFMove(wakeUpSemaphore), WTFMove(clientWaitSemaphore));
m_didInitialize = true;
initialize(availableExtensions, requestedExtensions);
}
void RemoteGraphicsContextGLProxy::wasLost()
{
if (isContextLost())
return;
markContextLost();
}
void RemoteGraphicsContextGLProxy::wasChanged()
{
if (isContextLost())
return;
dispatchContextChangedNotification();
}
void RemoteGraphicsContextGLProxy::markContextLost()
{
disconnectGpuProcessIfNeeded();
forceContextLost();
}
bool RemoteGraphicsContextGLProxy::handleMessageToRemovedDestination(IPC::Connection&, IPC::Decoder& decoder)
{
// Skip messages intended for already removed messageReceiverMap() destinations.
// These are business as usual. These can happen for example by:
// - The object is created and immediately destroyed, before WasCreated was handled.
// - A send to GPU process times out, we remove the object. If the GPU process delivers the message at the same
// time, it might be in the message delivery callback.
// When adding new messages to RemoteGraphicsContextGLProxy, add them to this list.
ASSERT(decoder.messageName() == Messages::RemoteGraphicsContextGLProxy::WasCreated::name()
|| decoder.messageName() == Messages::RemoteGraphicsContextGLProxy::WasLost::name()
|| decoder.messageName() == Messages::RemoteGraphicsContextGLProxy::WasChanged::name());
return true;
}
void RemoteGraphicsContextGLProxy::waitUntilInitialized()
{
if (isContextLost())
return;
if (m_didInitialize)
return;
if (m_streamConnection.waitForAndDispatchImmediately<Messages::RemoteGraphicsContextGLProxy::WasCreated>(m_graphicsContextGLIdentifier, defaultSendTimeout))
return;
markContextLost();
}
void RemoteGraphicsContextGLProxy::gpuProcessConnectionDidClose(GPUProcessConnection&)
{
ASSERT(!isContextLost());
abandonGpuProcess();
markContextLost();
}
void RemoteGraphicsContextGLProxy::abandonGpuProcess()
{
auto gpuProcessConnection = std::exchange(m_gpuProcessConnection, nullptr);
gpuProcessConnection->removeClient(*this);
gpuProcessConnection->messageReceiverMap().removeMessageReceiver(Messages::RemoteGraphicsContextGLProxy::messageReceiverName(), m_graphicsContextGLIdentifier.toUInt64());
m_gpuProcessConnection = nullptr;
}
void RemoteGraphicsContextGLProxy::disconnectGpuProcessIfNeeded()
{
if (auto gpuProcessConnection = std::exchange(m_gpuProcessConnection, nullptr)) {
m_streamConnection.invalidate();
gpuProcessConnection->removeClient(*this);
gpuProcessConnection->messageReceiverMap().removeMessageReceiver(Messages::RemoteGraphicsContextGLProxy::messageReceiverName(), m_graphicsContextGLIdentifier.toUInt64());
gpuProcessConnection->connection().send(Messages::GPUConnectionToWebProcess::ReleaseGraphicsContextGL(m_graphicsContextGLIdentifier), 0, IPC::SendOption::DispatchMessageEvenWhenWaitingForSyncReply);
}
ASSERT(isContextLost());
}
} // namespace WebKit
#endif