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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 "RemoteGraphicsContextGL.h"
#if ENABLE(GPU_PROCESS) && ENABLE(WEBGL) && PLATFORM(COCOA)
#include "GPUConnectionToWebProcess.h"
#include "IPCTester.h"
#include <WebCore/ProcessIdentity.h>
#include <wtf/MachSendRight.h>
#if ENABLE(VIDEO)
#include "RemoteVideoFrameObjectHeap.h"
#include <WebCore/GraphicsContextGLCV.h>
#include <WebCore/MediaSampleAVFObjC.h>
#include <WebCore/VideoFrameCV.h>
#endif
namespace WebKit {
#if ENABLE(VIDEO)
void RemoteGraphicsContextGL::copyTextureFromVideoFrame(WebKit::RemoteVideoFrameReadReference read, uint32_t texture, uint32_t target, int32_t level, uint32_t internalFormat, uint32_t format, uint32_t type, bool premultiplyAlpha, bool flipY, CompletionHandler<void(bool)>&& completionHandler)
{
assertIsCurrent(workQueue());
UNUSED_VARIABLE(premultiplyAlpha);
ASSERT_UNUSED(target, target == WebCore::GraphicsContextGL::TEXTURE_2D);
auto videoFrame = m_videoFrameObjectHeap->get(WTFMove(read));
if (!videoFrame) {
ASSERT_IS_TESTING_IPC();
completionHandler(false);
return;
}
auto videoFrameCV = videoFrame->asVideoFrameCV();
if (!videoFrameCV) {
ASSERT_NOT_REACHED(); // Programming error, not a IPC attack.
completionHandler(false);
return;
}
auto contextCV = m_context->asCV();
if (!contextCV) {
ASSERT_NOT_REACHED();
completionHandler(false);
return;
}
completionHandler(contextCV->copyVideoSampleToTexture(*videoFrameCV, texture, level, internalFormat, format, type, WebCore::GraphicsContextGL::FlipY(flipY)));
}
#endif
namespace {
class RemoteGraphicsContextGLCocoa final : public RemoteGraphicsContextGL {
public:
RemoteGraphicsContextGLCocoa(GPUConnectionToWebProcess&, GraphicsContextGLIdentifier, RemoteRenderingBackend&, IPC::StreamConnectionBuffer&&);
~RemoteGraphicsContextGLCocoa() final = default;
// RemoteGraphicsContextGL overrides.
void platformWorkQueueInitialize(WebCore::GraphicsContextGLAttributes&&) final;
void prepareForDisplay(CompletionHandler<void(WTF::MachSendRight&&)>&&) final;
private:
const WebCore::ProcessIdentity m_resourceOwner;
};
}
Ref<RemoteGraphicsContextGL> RemoteGraphicsContextGL::create(GPUConnectionToWebProcess& gpuConnectionToWebProcess, WebCore::GraphicsContextGLAttributes&& attributes, GraphicsContextGLIdentifier graphicsContextGLIdentifier, RemoteRenderingBackend& renderingBackend, IPC::StreamConnectionBuffer&& stream)
{
auto instance = adoptRef(*new RemoteGraphicsContextGLCocoa(gpuConnectionToWebProcess, graphicsContextGLIdentifier, renderingBackend, WTFMove(stream)));
instance->initialize(WTFMove(attributes));
return instance;
}
RemoteGraphicsContextGLCocoa::RemoteGraphicsContextGLCocoa(GPUConnectionToWebProcess& gpuConnectionToWebProcess, GraphicsContextGLIdentifier graphicsContextGLIdentifier, RemoteRenderingBackend& renderingBackend, IPC::StreamConnectionBuffer&& stream)
: RemoteGraphicsContextGL(gpuConnectionToWebProcess, graphicsContextGLIdentifier, renderingBackend, WTFMove(stream))
, m_resourceOwner(gpuConnectionToWebProcess.webProcessIdentity())
{
}
void RemoteGraphicsContextGLCocoa::platformWorkQueueInitialize(WebCore::GraphicsContextGLAttributes&& attributes)
{
assertIsCurrent(workQueue());
m_context = WebCore::GraphicsContextGLCocoa::create(WTFMove(attributes), WebCore::ProcessIdentity { m_resourceOwner });
}
void RemoteGraphicsContextGLCocoa::prepareForDisplay(CompletionHandler<void(WTF::MachSendRight&&)>&& completionHandler)
{
assertIsCurrent(workQueue());
m_context->prepareForDisplay();
MachSendRight sendRight;
WebCore::IOSurface* displayBuffer = m_context->displayBuffer();
if (displayBuffer) {
m_context->markDisplayBufferInUse();
sendRight = displayBuffer->createSendRight();
}
completionHandler(WTFMove(sendRight));
}
}
#endif
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