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
|
/* -*- 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 "BasicCanvasLayer.h"
#include "basic/BasicLayers.h" // for BasicLayerManager
#include "basic/BasicLayersImpl.h" // for GetEffectiveOperator
#include "CanvasRenderer.h"
#include "mozilla/mozalloc.h" // for operator new
#include "mozilla/Maybe.h"
#include "nsCOMPtr.h" // for already_AddRefed
#include "nsISupportsImpl.h" // for Layer::AddRef, etc
#include "gfx2DGlue.h"
#include "GLScreenBuffer.h"
#include "GLContext.h"
#include "gfxUtils.h"
#include "mozilla/layers/PersistentBufferProvider.h"
#include "client/TextureClientSharedSurface.h"
class gfxContext;
using namespace mozilla::gfx;
using namespace mozilla::gl;
namespace mozilla {
namespace layers {
void BasicCanvasLayer::Paint(DrawTarget* aDT, const Point& aDeviceOffset,
Layer* aMaskLayer) {
if (IsHidden()) return;
// Ignore IsDirty().
MOZ_ASSERT(mCanvasRenderer);
mCanvasRenderer->FirePreTransactionCallback();
const auto snapshot = mCanvasRenderer->BorrowSnapshot();
if (!snapshot) return;
const auto& surface = snapshot->mSurf;
Maybe<Matrix> oldTM;
if (!mCanvasRenderer->YIsDown()) {
// y-flip
oldTM = Some(aDT->GetTransform());
aDT->SetTransform(Matrix(*oldTM)
.PreTranslate(0.0f, mBounds.Height())
.PreScale(1.0f, -1.0f));
}
FillRectWithMask(
aDT, aDeviceOffset, Rect(0, 0, mBounds.Width(), mBounds.Height()),
surface, mSamplingFilter,
DrawOptions(GetEffectiveOpacity(), GetEffectiveOperator(this)),
aMaskLayer);
if (oldTM) {
aDT->SetTransform(*oldTM);
}
mCanvasRenderer->FireDidTransactionCallback();
Painted();
}
RefPtr<CanvasRenderer> BasicCanvasLayer::CreateCanvasRendererInternal() {
return new CanvasRenderer();
}
already_AddRefed<CanvasLayer> BasicLayerManager::CreateCanvasLayer() {
NS_ASSERTION(InConstruction(), "Only allowed in construction phase");
RefPtr<CanvasLayer> layer = new BasicCanvasLayer(this);
return layer.forget();
}
} // namespace layers
} // namespace mozilla
|
