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
|
/* -*- 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 "CanvasLayerComposite.h"
#include "composite/CompositableHost.h" // for CompositableHost
#include "gfx2DGlue.h" // for ToFilter
#include "gfxEnv.h" // for gfxEnv, etc
#include "mozilla/gfx/Matrix.h" // for Matrix4x4
#include "mozilla/gfx/Point.h" // for Point
#include "mozilla/gfx/Rect.h" // for Rect
#include "mozilla/layers/Compositor.h" // for Compositor
#include "mozilla/layers/Effects.h" // for EffectChain
#include "mozilla/layers/LayerManagerCompositeUtils.h"
#include "mozilla/mozalloc.h" // for operator delete
#include "nsAString.h"
#include "mozilla/RefPtr.h" // for nsRefPtr
#include "nsISupportsImpl.h" // for MOZ_COUNT_CTOR, etc
#include "nsString.h" // for nsAutoCString
namespace mozilla {
namespace layers {
using namespace mozilla::gfx;
CanvasLayerComposite::CanvasLayerComposite(LayerManagerComposite* aManager)
: CanvasLayer(aManager, nullptr),
LayerComposite(aManager),
mCompositableHost(nullptr) {
MOZ_COUNT_CTOR(CanvasLayerComposite);
mImplData = static_cast<LayerComposite*>(this);
}
CanvasLayerComposite::~CanvasLayerComposite() {
MOZ_COUNT_DTOR(CanvasLayerComposite);
CleanupResources();
}
bool CanvasLayerComposite::SetCompositableHost(CompositableHost* aHost) {
switch (aHost->GetType()) {
case CompositableType::IMAGE: {
if (mCompositableHost && aHost != mCompositableHost) {
mCompositableHost->Detach(this);
}
mCompositableHost = aHost;
return true;
}
default:
return false;
}
}
Layer* CanvasLayerComposite::GetLayer() { return this; }
void CanvasLayerComposite::SetLayerManager(HostLayerManager* aManager) {
LayerComposite::SetLayerManager(aManager);
mManager = aManager;
if (mCompositableHost && mCompositor) {
mCompositableHost->SetTextureSourceProvider(mCompositor);
}
}
void CanvasLayerComposite::RenderLayer(const IntRect& aClipRect,
const Maybe<gfx::Polygon>& aGeometry) {
if (!mCompositableHost || !mCompositableHost->IsAttached()) {
return;
}
mCompositor->MakeCurrent();
#ifdef MOZ_DUMP_PAINTING
if (gfxEnv::DumpCompositorTextures()) {
RefPtr<gfx::DataSourceSurface> surf = mCompositableHost->GetAsSurface();
if (surf) {
WriteSnapshotToDumpFile(this, surf);
}
}
#endif
RenderWithAllMasks(this, mCompositor, aClipRect,
[&](EffectChain& effectChain, const IntRect& clipRect) {
mCompositableHost->Composite(
mCompositor, this, effectChain,
GetEffectiveOpacity(), GetEffectiveTransform(),
GetSamplingFilter(), clipRect);
});
mCompositableHost->BumpFlashCounter();
}
CompositableHost* CanvasLayerComposite::GetCompositableHost() {
if (mCompositableHost && mCompositableHost->IsAttached()) {
return mCompositableHost.get();
}
return nullptr;
}
void CanvasLayerComposite::CleanupResources() {
if (mCompositableHost) {
mCompositableHost->Detach(this);
}
mCompositableHost = nullptr;
}
gfx::SamplingFilter CanvasLayerComposite::GetSamplingFilter() {
gfx::SamplingFilter filter = mSamplingFilter;
#ifdef ANDROID
// Bug 691354
// Using the LINEAR filter we get unexplained artifacts.
// Use NEAREST when no scaling is required.
Matrix matrix;
bool is2D = GetEffectiveTransform().Is2D(&matrix);
if (is2D && !ThebesMatrix(matrix).HasNonTranslationOrFlip()) {
filter = SamplingFilter::POINT;
}
#endif
return filter;
}
void CanvasLayerComposite::GenEffectChain(EffectChain& aEffect) {
aEffect.mLayerRef = this;
aEffect.mPrimaryEffect = mCompositableHost->GenEffect(GetSamplingFilter());
}
void CanvasLayerComposite::PrintInfo(std::stringstream& aStream,
const char* aPrefix) {
CanvasLayer::PrintInfo(aStream, aPrefix);
aStream << "\n";
if (mCompositableHost && mCompositableHost->IsAttached()) {
nsAutoCString pfx(aPrefix);
pfx += " ";
mCompositableHost->PrintInfo(aStream, pfx.get());
}
}
} // namespace layers
} // namespace mozilla
|
