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
|
/*
* Copyright (C) 2021-2024 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 "GraphicsContext.h"
#include <wtf/TZoneMalloc.h>
#include <wtf/UniqueRef.h>
namespace WebCore {
// BifurcatedGraphicsContext allows you to duplicate painting between two given GraphicsContexts;
// for example, for painting into a bitmap-backed and a display-list-backed context simultaneously.
// Any state that is returned by GraphicsContext methods will be retrieved from the primary context.
class WEBCORE_EXPORT BifurcatedGraphicsContext : public GraphicsContext {
WTF_MAKE_TZONE_ALLOCATED_EXPORT(BifurcatedGraphicsContext, WEBCORE_EXPORT);
WTF_MAKE_NONCOPYABLE(BifurcatedGraphicsContext);
public:
BifurcatedGraphicsContext(GraphicsContext& primaryContext, GraphicsContext& secondaryContext);
~BifurcatedGraphicsContext();
bool hasPlatformContext() const;
PlatformGraphicsContext* platformContext() const final;
const DestinationColorSpace& colorSpace() const final;
void save(GraphicsContextState::Purpose = GraphicsContextState::Purpose::SaveRestore) final;
void restore(GraphicsContextState::Purpose = GraphicsContextState::Purpose::SaveRestore) final;
void drawRect(const FloatRect&, float borderThickness = 1) final;
void drawLine(const FloatPoint&, const FloatPoint&) final;
void drawEllipse(const FloatRect&) final;
#if USE(CG)
void applyStrokePattern() final;
void applyFillPattern() final;
#endif
void drawPath(const Path&) final;
void fillPath(const Path&) final;
void strokePath(const Path&) final;
void beginTransparencyLayer(float opacity) final;
void beginTransparencyLayer(CompositeOperator, BlendMode) final;
void endTransparencyLayer() final;
void applyDeviceScaleFactor(float factor) final;
using GraphicsContext::fillRect;
void fillRect(const FloatRect&, RequiresClipToRect) final;
void fillRect(const FloatRect&, const Color&) final;
void fillRect(const FloatRect&, Gradient&) final;
void fillRect(const FloatRect&, Gradient&, const AffineTransform&, RequiresClipToRect) final;
void fillRoundedRectImpl(const FloatRoundedRect&, const Color&) final;
void fillRectWithRoundedHole(const FloatRect&, const FloatRoundedRect& roundedHoleRect, const Color&) final;
void clearRect(const FloatRect&) final;
void strokeRect(const FloatRect&, float lineWidth) final;
void fillEllipse(const FloatRect& ellipse) final;
void strokeEllipse(const FloatRect& ellipse) final;
#if USE(CG)
bool isCALayerContext() const final;
#endif
RenderingMode renderingMode() const final;
void resetClip() final;
void clip(const FloatRect&) final;
void clipRoundedRect(const FloatRoundedRect&) final;
void clipPath(const Path&, WindRule = WindRule::EvenOdd) final;
void clipOut(const FloatRect&) final;
void clipOutRoundedRect(const FloatRoundedRect&) final;
void clipOut(const Path&) final;
void clipToImageBuffer(ImageBuffer&, const FloatRect&) final;
IntRect clipBounds() const final;
void setLineCap(LineCap) final;
void setLineDash(const DashArray&, float dashOffset) final;
void setLineJoin(LineJoin) final;
void setMiterLimit(float) final;
void drawNativeImageInternal(NativeImage&, const FloatRect& destRect, const FloatRect& srcRect, ImagePaintingOptions = { }) final;
void drawSystemImage(SystemImage&, const FloatRect&) final;
void drawPattern(NativeImage&, const FloatRect& destRect, const FloatRect& tileRect, const AffineTransform& patternTransform, const FloatPoint& phase, const FloatSize& spacing, ImagePaintingOptions = { }) final;
ImageDrawResult drawImage(Image&, const FloatRect& destination, const FloatRect& source, ImagePaintingOptions = { ImageOrientation::Orientation::FromImage }) final;
ImageDrawResult drawTiledImage(Image&, const FloatRect& destination, const FloatPoint& source, const FloatSize& tileSize, const FloatSize& spacing, ImagePaintingOptions = { }) final;
ImageDrawResult drawTiledImage(Image&, const FloatRect& destination, const FloatRect& source, const FloatSize& tileScaleFactor, Image::TileRule, Image::TileRule, ImagePaintingOptions = { }) final;
void drawControlPart(ControlPart&, const FloatRoundedRect& borderRect, float deviceScaleFactor, const ControlStyle&) final;
#if ENABLE(VIDEO)
void drawVideoFrame(VideoFrame&, const FloatRect& destination, WebCore::ImageOrientation, bool shouldDiscardAlpha) final;
#endif
using GraphicsContext::scale;
void scale(const FloatSize&) final;
void rotate(float angleInRadians) final;
void translate(float x, float y) final;
void concatCTM(const AffineTransform&) final;
void setCTM(const AffineTransform&) final;
AffineTransform getCTM(IncludeDeviceScale = PossiblyIncludeDeviceScale) const final;
void drawFocusRing(const Path&, float outlineWidth, const Color&) final;
void drawFocusRing(const Vector<FloatRect>&, float outlineOffset, float outlineWidth, const Color&) final;
FloatSize drawText(const FontCascade&, const TextRun&, const FloatPoint&, unsigned from = 0, std::optional<unsigned> to = std::nullopt) final;
void drawGlyphs(const Font&, std::span<const GlyphBufferGlyph>, std::span<const GlyphBufferAdvance>, const FloatPoint&, FontSmoothingMode) final;
void drawDecomposedGlyphs(const Font&, const DecomposedGlyphs&) final;
void drawEmphasisMarks(const FontCascade&, const TextRun&, const AtomString& mark, const FloatPoint&, unsigned from = 0, std::optional<unsigned> to = std::nullopt) final;
void drawBidiText(const FontCascade&, const TextRun&, const FloatPoint&, FontCascade::CustomFontNotReadyAction = FontCascade::CustomFontNotReadyAction::DoNotPaintIfFontNotReady) final;
void drawLinesForText(const FloatPoint&, float thickness, std::span<const FloatSegment>, bool isPrinting, bool doubleLines, StrokeStyle) final;
void drawDotsForDocumentMarker(const FloatRect&, DocumentMarkerLineStyle) final;
void beginPage(const IntSize&) final;
void endPage() final;
void setURLForRect(const URL&, const FloatRect&) final;
void setDestinationForRect(const String& name, const FloatRect&) final;
void addDestinationAtPoint(const String& name, const FloatPoint&) final;
bool supportsInternalLinks() const final;
void didUpdateState(GraphicsContextState&) final;
private:
void verifyStateSynchronization();
bool m_hasLoggedAboutDesynchronizedState { false };
GraphicsContext& m_primaryContext;
GraphicsContext& m_secondaryContext;
};
}
|
