-
Notifications
You must be signed in to change notification settings - Fork 1
/
DrawTargetCapture.h
163 lines (136 loc) · 6.25 KB
/
DrawTargetCapture.h
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
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* 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/. */
#ifndef MOZILLA_GFX_DRAWTARGETCAPTURE_H_
#define MOZILLA_GFX_DRAWTARGETCAPTURE_H_
#include "2D.h"
#include <vector>
#include "Filters.h"
namespace mozilla {
namespace gfx {
class DrawingCommand;
class DrawTargetCaptureImpl : public DrawTargetCapture
{
public:
DrawTargetCaptureImpl()
{}
bool Init(const IntSize& aSize, DrawTarget* aRefDT);
virtual BackendType GetBackendType() const { return mRefDT->GetBackendType(); }
virtual DrawTargetType GetType() const { return mRefDT->GetType(); }
virtual TemporaryRef<SourceSurface> Snapshot();
virtual IntSize GetSize() { return mSize; }
virtual void Flush() {}
virtual void DrawSurface(SourceSurface *aSurface,
const Rect &aDest,
const Rect &aSource,
const DrawSurfaceOptions &aSurfOptions,
const DrawOptions &aOptions);
virtual void DrawFilter(FilterNode *aNode,
const Rect &aSourceRect,
const Point &aDestPoint,
const DrawOptions &aOptions = DrawOptions());
virtual void DrawSurfaceWithShadow(SourceSurface *aSurface,
const Point &aDest,
const Color &aColor,
const Point &aOffset,
Float aSigma,
CompositionOp aOperator) { /* Not implemented */ }
virtual void ClearRect(const Rect &aRect);
virtual void MaskSurface(const Pattern &aSource,
SourceSurface *aMask,
Point aOffset,
const DrawOptions &aOptions = DrawOptions());
virtual void CopySurface(SourceSurface *aSurface,
const IntRect &aSourceRect,
const IntPoint &aDestination);
virtual void FillRect(const Rect &aRect,
const Pattern &aPattern,
const DrawOptions &aOptions = DrawOptions());
virtual void StrokeRect(const Rect &aRect,
const Pattern &aPattern,
const StrokeOptions &aStrokeOptions = StrokeOptions(),
const DrawOptions &aOptions = DrawOptions());
virtual void StrokeLine(const Point &aStart,
const Point &aEnd,
const Pattern &aPattern,
const StrokeOptions &aStrokeOptions = StrokeOptions(),
const DrawOptions &aOptions = DrawOptions());
virtual void Stroke(const Path *aPath,
const Pattern &aPattern,
const StrokeOptions &aStrokeOptions = StrokeOptions(),
const DrawOptions &aOptions = DrawOptions());
virtual void Fill(const Path *aPath,
const Pattern &aPattern,
const DrawOptions &aOptions = DrawOptions());
virtual void FillGlyphs(ScaledFont *aFont,
const GlyphBuffer &aBuffer,
const Pattern &aPattern,
const DrawOptions &aOptions = DrawOptions(),
const GlyphRenderingOptions *aRenderingOptions = nullptr);
virtual void Mask(const Pattern &aSource,
const Pattern &aMask,
const DrawOptions &aOptions = DrawOptions());
virtual void PushClip(const Path *aPath);
virtual void PushClipRect(const Rect &aRect);
virtual void PopClip();
virtual void SetTransform(const Matrix &aTransform);
virtual TemporaryRef<SourceSurface> CreateSourceSurfaceFromData(unsigned char *aData,
const IntSize &aSize,
int32_t aStride,
SurfaceFormat aFormat) const
{
return mRefDT->CreateSourceSurfaceFromData(aData, aSize, aStride, aFormat);
}
virtual TemporaryRef<SourceSurface> OptimizeSourceSurface(SourceSurface *aSurface) const
{
return mRefDT->OptimizeSourceSurface(aSurface);
}
virtual TemporaryRef<SourceSurface>
CreateSourceSurfaceFromNativeSurface(const NativeSurface &aSurface) const
{
return mRefDT->CreateSourceSurfaceFromNativeSurface(aSurface);
}
virtual TemporaryRef<DrawTarget>
CreateSimilarDrawTarget(const IntSize &aSize, SurfaceFormat aFormat) const
{
return mRefDT->CreateSimilarDrawTarget(aSize, aFormat);
}
virtual TemporaryRef<PathBuilder> CreatePathBuilder(FillRule aFillRule = FillRule::FILL_WINDING) const
{
return mRefDT->CreatePathBuilder(aFillRule);
}
virtual TemporaryRef<GradientStops>
CreateGradientStops(GradientStop *aStops,
uint32_t aNumStops,
ExtendMode aExtendMode = ExtendMode::CLAMP) const
{
return mRefDT->CreateGradientStops(aStops, aNumStops, aExtendMode);
}
virtual TemporaryRef<FilterNode> CreateFilter(FilterType aType)
{
return mRefDT->CreateFilter(aType);
}
void ReplayToDrawTarget(DrawTarget* aDT, const Matrix& aTransform);
protected:
~DrawTargetCaptureImpl();
private:
// This storage system was used to minimize the amount of heap allocations
// that are required while recording. It should be noted there's no
// guarantees on the alignments of DrawingCommands allocated in this array.
template<typename T>
T* AppendToCommandList()
{
size_t oldSize = mDrawCommandStorage.size();
mDrawCommandStorage.resize(mDrawCommandStorage.size() + sizeof(T) + sizeof(uint32_t));
uint8_t* nextDrawLocation = &mDrawCommandStorage.front() + oldSize;
*(uint32_t*)(nextDrawLocation) = sizeof(T) + sizeof(uint32_t);
return reinterpret_cast<T*>(nextDrawLocation + sizeof(uint32_t));
}
RefPtr<DrawTarget> mRefDT;
IntSize mSize;
std::vector<uint8_t> mDrawCommandStorage;
};
} /* namespace mozilla */
} /* namespace gfx */
#endif /* MOZILLA_GFX_DRAWTARGETCAPTURE_H_ */