1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
|
/*
* Copyright (C) 2020-2022 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. ``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
* 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.
*/
#pragma once
#if ENABLE(GPU_PROCESS)
#include "GPUProcessConnection.h"
#include "IPCSemaphore.h"
#include "ImageBufferBackendHandle.h"
#include "MarkSurfacesAsVolatileRequestIdentifier.h"
#include "MessageReceiver.h"
#include "MessageSender.h"
#include "RemoteDisplayListRecorderMessages.h"
#include "RemoteRenderingBackendCreationParameters.h"
#include "RemoteRenderingBackendMessages.h"
#include "RemoteResourceCacheProxy.h"
#include "RenderingBackendIdentifier.h"
#include "RenderingUpdateID.h"
#include "SharedMemory.h"
#include "StreamClientConnection.h"
#include <WebCore/RenderingResourceIdentifier.h>
#include <WebCore/Timer.h>
#include <wtf/Deque.h>
#include <wtf/HashMap.h>
#include <wtf/Span.h>
#include <wtf/WeakPtr.h>
namespace WebCore {
class DestinationColorSpace;
class Filter;
class FloatSize;
class PixelBuffer;
enum class AlphaPremultiplication : uint8_t;
enum class RenderingMode : bool;
}
namespace WebKit {
class WebPage;
class RemoteRenderingBackendProxy
: private IPC::MessageReceiver
, public GPUProcessConnection::Client {
public:
static std::unique_ptr<RemoteRenderingBackendProxy> create(WebPage&);
~RemoteRenderingBackendProxy();
using GPUProcessConnection::Client::weakPtrFactory;
using WeakValueType = GPUProcessConnection::Client::WeakValueType;
RemoteResourceCacheProxy& remoteResourceCacheProxy() { return m_remoteResourceCacheProxy; }
void createRemoteImageBuffer(WebCore::ImageBuffer&);
bool isCached(const WebCore::ImageBuffer&) const;
// IPC::MessageReceiver
void didReceiveMessage(IPC::Connection&, IPC::Decoder&) override;
// Messages to be sent.
RefPtr<WebCore::ImageBuffer> createImageBuffer(const WebCore::FloatSize&, WebCore::RenderingMode, WebCore::RenderingPurpose, float resolutionScale, const WebCore::DestinationColorSpace&, WebCore::PixelFormat, bool avoidBackendSizeCheck = false);
bool getPixelBufferForImageBuffer(WebCore::RenderingResourceIdentifier, const WebCore::PixelBufferFormat& destinationFormat, const WebCore::IntRect& srcRect, Span<uint8_t> result);
void putPixelBufferForImageBuffer(WebCore::RenderingResourceIdentifier, const WebCore::PixelBuffer&, const WebCore::IntRect& srcRect, const WebCore::IntPoint& destPoint, WebCore::AlphaPremultiplication destFormat);
RefPtr<ShareableBitmap> getShareableBitmap(WebCore::RenderingResourceIdentifier, WebCore::PreserveResolution);
RefPtr<WebCore::Image> getFilteredImage(WebCore::RenderingResourceIdentifier, WebCore::Filter&);
void cacheNativeImage(const ShareableBitmap::Handle&, WebCore::RenderingResourceIdentifier);
void cacheFont(Ref<WebCore::Font>&&);
void cacheDecomposedGlyphs(Ref<WebCore::DecomposedGlyphs>&&);
void releaseAllRemoteResources();
void releaseRemoteResource(WebCore::RenderingResourceIdentifier);
void markSurfacesVolatile(Vector<WebCore::RenderingResourceIdentifier>&&, CompletionHandler<void(bool madeAllVolatile)>&&);
struct BufferSet {
RefPtr<WebCore::ImageBuffer> front;
RefPtr<WebCore::ImageBuffer> back;
RefPtr<WebCore::ImageBuffer> secondaryBack;
};
struct LayerPrepareBuffersData {
BufferSet buffers;
bool supportsPartialRepaint { true };
bool hasEmptyDirtyRegion { false };
};
struct SwapBuffersResult {
BufferSet buffers;
SwapBuffersDisplayRequirement displayRequirement;
};
Vector<SwapBuffersResult> prepareBuffersForDisplay(const Vector<LayerPrepareBuffersData>&);
void finalizeRenderingUpdate();
void didPaintLayers();
RenderingUpdateID renderingUpdateID() const { return m_renderingUpdateID; }
unsigned delayedRenderingUpdateCount() const { return m_renderingUpdateID - m_didRenderingUpdateID; }
enum class DidReceiveBackendCreationResult : bool {
ReceivedAnyResponse,
TimeoutOrIPCFailure
};
DidReceiveBackendCreationResult waitForDidCreateImageBufferBackend();
bool waitForDidFlush();
RenderingBackendIdentifier renderingBackendIdentifier() const;
RenderingBackendIdentifier ensureBackendCreated();
bool isGPUProcessConnectionClosed() const { return !m_gpuProcessConnection; }
void didInitialize(IPC::Semaphore&& wakeUpSemaphore, IPC::Semaphore&& clientWaitSemaphore);
template<typename T, typename U>
void sendToStream(T&& message, ObjectIdentifier<U> identifier)
{
// FIXME: We should consider making the send timeout finite.
streamConnection().send(WTFMove(message), identifier, Seconds::infinity());
}
template<typename T>
void sendToStream(T&& message)
{
sendToStream(WTFMove(message), renderingBackendIdentifier());
}
private:
explicit RemoteRenderingBackendProxy(WebPage&);
IPC::StreamClientConnection& streamConnection();
template<typename T>
auto sendSyncToStream(T&& message, typename T::Reply&& reply, IPC::Timeout timeout = { Seconds::infinity() })
{
return streamConnection().sendSync(WTFMove(message), WTFMove(reply), renderingBackendIdentifier(), timeout);
}
// GPUProcessConnection::Client
void gpuProcessConnectionDidClose(GPUProcessConnection&) final;
void disconnectGPUProcess();
GPUProcessConnection& ensureGPUProcessConnection();
// Returns std::nullopt if no update is needed or allocation failed.
// Returns handle if that should be sent to the receiver process.
std::optional<SharedMemory::Handle> updateSharedMemoryForGetPixelBuffer(size_t dataSize);
void destroyGetPixelBufferSharedMemory();
// Messages to be received.
void didCreateImageBufferBackend(ImageBufferBackendHandle, WebCore::RenderingResourceIdentifier);
void didFlush(WebCore::GraphicsContextFlushIdentifier, WebCore::RenderingResourceIdentifier);
void didFinalizeRenderingUpdate(RenderingUpdateID didRenderingUpdateID);
void didMarkLayersAsVolatile(MarkSurfacesAsVolatileRequestIdentifier, const Vector<WebCore::RenderingResourceIdentifier>& markedVolatileBufferIdentifiers, bool didMarkAllLayerAsVolatile);
GPUProcessConnection* m_gpuProcessConnection { nullptr };
RefPtr<IPC::Connection> m_connection;
std::unique_ptr<IPC::StreamClientConnection> m_streamConnection;
RemoteRenderingBackendCreationParameters m_parameters;
RemoteResourceCacheProxy m_remoteResourceCacheProxy { *this };
RefPtr<SharedMemory> m_getPixelBufferSharedMemory;
WebCore::Timer m_destroyGetPixelBufferSharedMemoryTimer { *this, &RemoteRenderingBackendProxy::destroyGetPixelBufferSharedMemory };
HashMap<MarkSurfacesAsVolatileRequestIdentifier, CompletionHandler<void(bool)>> m_markAsVolatileRequests;
RenderingUpdateID m_renderingUpdateID;
RenderingUpdateID m_didRenderingUpdateID;
};
} // namespace WebKit
#endif // ENABLE(GPU_PROCESS)
|
