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
|
/*
* Copyright (C) 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. ``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
#include "BufferIdentifierSet.h"
#include "MarkSurfacesAsVolatileRequestIdentifier.h"
#include "PrepareBackingStoreBuffersData.h"
#include "RemoteDisplayListRecorderProxy.h"
#include "RemoteImageBufferSetIdentifier.h"
#include "RenderingUpdateID.h"
#include "WorkQueueMessageReceiver.h"
#include <wtf/Lock.h>
#if ENABLE(GPU_PROCESS)
namespace IPC {
class Connection;
class Decoder;
class StreamClientConnection;
}
namespace WebKit {
class RemoteImageBufferSetProxyFlushFence;
struct BufferSetBackendHandle;
// FIXME: We should have a generic 'ImageBufferSet' class that contains
// the code that isn't specific to being remote, and this helper belongs
// there.
class ThreadSafeImageBufferSetFlusher {
WTF_MAKE_FAST_ALLOCATED;
WTF_MAKE_NONCOPYABLE(ThreadSafeImageBufferSetFlusher);
public:
enum class FlushType {
BackendHandlesOnly,
BackendHandlesAndDrawing,
};
ThreadSafeImageBufferSetFlusher() = default;
virtual ~ThreadSafeImageBufferSetFlusher() = default;
virtual void flushAndCollectHandles(HashMap<RemoteImageBufferSetIdentifier, std::unique_ptr<BufferSetBackendHandle>>&) = 0;
};
// A RemoteImageBufferSet is a set of three ImageBuffers (front, back,
// secondary back) owned by the GPU process, for the purpose of drawing
// successive (layer) frames.
// To draw a frame, the consumer allocates a new RemoteDisplayListRecorderProxy and
// asks the RemoteImageBufferSet set to map it to an appropriate new front
// buffer (either by picking one of the back buffers, or by allocating a new
// one). It then copies across the pixels from the previous front buffer,
// clips to the dirty region and clears that region.
// Usage is done through RemoteRenderingBackendProxy::prepareImageBufferSetsForDisplay,
// so that a Vector of RemoteImageBufferSets can be used with a single
// IPC call.
class RemoteImageBufferSetProxy : public IPC::WorkQueueMessageReceiver {
public:
RemoteImageBufferSetProxy(RemoteRenderingBackendProxy&);
~RemoteImageBufferSetProxy();
RemoteImageBufferSetIdentifier identifier() const { return m_identifier; }
OptionSet<BufferInSetType> requestedVolatility() { return m_requestedVolatility; }
OptionSet<BufferInSetType> confirmedVolatility() { return m_confirmedVolatility; }
void clearVolatilityUntilAfter(MarkSurfacesAsVolatileRequestIdentifier previousVolatilityRequest);
void addRequestedVolatility(OptionSet<BufferInSetType> request);
void setConfirmedVolatility(MarkSurfacesAsVolatileRequestIdentifier, OptionSet<BufferInSetType> types);
#if PLATFORM(COCOA)
void didPrepareForDisplay(ImageBufferSetPrepareBufferForDisplayOutputData, RenderingUpdateID);
#endif
WebCore::GraphicsContext& context();
bool hasContext() const { return !!m_displayListRecorder; }
WebCore::RenderingResourceIdentifier displayListResourceIdentifier() const { return m_displayListIdentifier; }
std::unique_ptr<ThreadSafeImageBufferSetFlusher> flushFrontBufferAsync(ThreadSafeImageBufferSetFlusher::FlushType);
void setConfiguration(WebCore::FloatSize, float, const WebCore::DestinationColorSpace&, WebCore::PixelFormat, WebCore::RenderingMode, WebCore::RenderingPurpose);
void willPrepareForDisplay();
void remoteBufferSetWasDestroyed();
#if ENABLE(RE_DYNAMIC_CONTENT_SCALING)
std::optional<WebCore::DynamicContentScalingDisplayList> dynamicContentScalingDisplayList();
#endif
unsigned generation() const { return m_generation; }
void didReceiveMessage(IPC::Connection&, IPC::Decoder&);
void close();
private:
template<typename T> void send(T&& message);
template<typename T> auto sendSync(T&& message);
void createFlushFence() WTF_REQUIRES_LOCK(m_lock);
WeakPtr<RemoteRenderingBackendProxy> m_remoteRenderingBackendProxy;
RemoteImageBufferSetIdentifier m_identifier;
WebCore::RenderingResourceIdentifier m_displayListIdentifier;
std::unique_ptr<RemoteDisplayListRecorderProxy> m_displayListRecorder;
MarkSurfacesAsVolatileRequestIdentifier m_minimumVolatilityRequest;
OptionSet<BufferInSetType> m_requestedVolatility;
OptionSet<BufferInSetType> m_confirmedVolatility;
WebCore::FloatSize m_size;
float m_scale { 1.0f };
WebCore::DestinationColorSpace m_colorSpace { WebCore::DestinationColorSpace::SRGB() };
WebCore::PixelFormat m_pixelFormat;
WebCore::RenderingMode m_renderingMode { WebCore::RenderingMode::Unaccelerated };
WebCore::RenderingPurpose m_renderingPurpose { WebCore::RenderingPurpose::Unspecified };
unsigned m_generation { 0 };
bool m_remoteNeedsConfigurationUpdate { false };
Lock m_lock;
RefPtr<RemoteImageBufferSetProxyFlushFence> m_pendingFlush WTF_GUARDED_BY_LOCK(m_lock);
RefPtr<IPC::StreamClientConnection> m_streamConnection WTF_GUARDED_BY_LOCK(m_lock);
bool m_prepareForDisplayIsPending WTF_GUARDED_BY_LOCK(m_lock) { false };
bool m_closed WTF_GUARDED_BY_LOCK(m_lock) { false };
};
inline TextStream& operator<<(TextStream& ts, RemoteImageBufferSetProxy& bufferSet)
{
ts << bufferSet.identifier();
return ts;
}
} // namespace WebKit
#endif // ENABLE(GPU_PROCESS)
|
