blob: d69f60e36cadfc6b5dbc6f06d610faf9c1d92f29 (
plain)
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
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "CanvasRenderer.h"
#include "BuildConstants.h"
#include "ipc/KnowsCompositor.h"
#include "mozilla/gfx/gfxVars.h"
#include "mozilla/StaticPrefs_webgl.h"
#include "nsICanvasRenderingContextInternal.h"
#include "PersistentBufferProvider.h"
#include "WebGLTypes.h"
#ifdef MOZ_WIDGET_GTK
# include "mozilla/widget/DMABufSurface.h"
# include "mozilla/widget/DMABufLibWrapper.h"
#endif
namespace mozilla {
namespace layers {
CanvasRendererData::CanvasRendererData() = default;
CanvasRendererData::~CanvasRendererData() = default;
// -
BorrowedSourceSurface::BorrowedSourceSurface(
PersistentBufferProvider* const returnTo,
const RefPtr<gfx::SourceSurface> surf)
: mReturnTo(returnTo), mSurf(surf) {}
BorrowedSourceSurface::~BorrowedSourceSurface() {
if (mReturnTo) {
auto forgettable = mSurf;
mReturnTo->ReturnSnapshot(forgettable.forget());
}
}
// -
CanvasRenderer::CanvasRenderer() { MOZ_COUNT_CTOR(CanvasRenderer); }
CanvasRenderer::~CanvasRenderer() { MOZ_COUNT_DTOR(CanvasRenderer); }
void CanvasRenderer::Initialize(const CanvasRendererData& aData) {
mData = aData;
}
bool CanvasRenderer::IsDataValid(const CanvasRendererData& aData) const {
return mData.GetContext() == aData.GetContext();
}
std::shared_ptr<BorrowedSourceSurface> CanvasRenderer::BorrowSnapshot(
const bool requireAlphaPremult) const {
const auto context = mData.GetContext();
if (!context) return nullptr;
RefPtr<PersistentBufferProvider> provider = context->GetBufferProvider();
RefPtr<gfx::SourceSurface> ss;
if (provider) {
ss = provider->BorrowSnapshot();
}
if (!ss) {
provider = nullptr;
ss = context->GetFrontBufferSnapshot(requireAlphaPremult);
}
if (!ss) return nullptr;
return std::make_shared<BorrowedSourceSurface>(provider, ss);
}
void CanvasRenderer::FirePreTransactionCallback() const {
if (!mData.mDoPaintCallbacks) return;
const auto context = mData.GetContext();
if (!context) return;
context->OnBeforePaintTransaction();
}
void CanvasRenderer::FireDidTransactionCallback() const {
if (!mData.mDoPaintCallbacks) return;
const auto context = mData.GetContext();
if (!context) return;
context->OnDidPaintTransaction();
}
TextureType TexTypeForWebgl(KnowsCompositor* const knowsCompositor) {
if (!knowsCompositor) return TextureType::Unknown;
const auto layersBackend = knowsCompositor->GetCompositorBackendType();
switch (layersBackend) {
case LayersBackend::LAYERS_LAST:
MOZ_CRASH("Unexpected LayersBackend::LAYERS_LAST");
case LayersBackend::LAYERS_NONE:
return TextureType::Unknown;
case LayersBackend::LAYERS_WR:
break;
}
if (kIsWindows) {
if (knowsCompositor->SupportsD3D11()) {
return TextureType::D3D11;
}
}
if (kIsMacOS) {
return TextureType::MacIOSurface;
}
#ifdef MOZ_WIDGET_GTK
if (kIsLinux) {
if (!knowsCompositor->UsingSoftwareWebRender() &&
widget::DMABufDevice::IsDMABufWebGLEnabled()) {
return TextureType::DMABUF;
}
}
#endif
if (kIsAndroid) {
if (gfx::gfxVars::UseAHardwareBufferSharedSurfaceWebglOop()) {
return TextureType::AndroidHardwareBuffer;
}
if (StaticPrefs::webgl_enable_surface_texture()) {
return TextureType::AndroidNativeWindow;
}
}
return TextureType::Unknown;
}
} // namespace layers
} // namespace mozilla
|
