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
167
168
169
170
|
/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkPipeCanvas_DEFINED
#define SkPipeCanvas_DEFINED
#include "SkCanvas.h"
#include "SkDeduper.h"
#include "SkImage.h"
#include "SkPipe.h"
#include "SkTypeface.h"
#include "SkWriteBuffer.h"
class SkPipeCanvas;
class SkPipeWriter;
template <typename T> class SkTIndexSet {
public:
void reset() { fArray.reset(); }
// returns the found index or 0
int find(const T& key) const {
const Rec* stop = fArray.end();
for (const Rec* curr = fArray.begin(); curr < stop; ++curr) {
if (key == curr->fKey) {
return curr->fIndex;
}
}
return 0;
}
// returns the new index
int add(const T& key) {
Rec* rec = fArray.append();
rec->fKey = key;
rec->fIndex = fNextIndex++;
return rec->fIndex;
}
private:
struct Rec {
T fKey;
int fIndex;
};
SkTDArray<Rec> fArray;
int fNextIndex = 1;
};
class SkPipeDeduper : public SkDeduper {
public:
void resetCaches() {
fImages.reset();
fPictures.reset();
fTypefaces.reset();
fFactories.reset();
}
void setCanvas(SkPipeCanvas* canvas) { fPipeCanvas = canvas; }
void setStream(SkWStream* stream) { fStream = stream; }
void setTypefaceSerializer(SkTypefaceSerializer* tfs) { fTFSerializer = tfs; }
// returns 0 if not found
int findImage(SkImage* image) const { return fImages.find(image->uniqueID()); }
int findPicture(SkPicture* picture) const { return fPictures.find(picture->uniqueID()); }
int findOrDefineImage(SkImage*) override;
int findOrDefinePicture(SkPicture*) override;
int findOrDefineTypeface(SkTypeface*) override;
int findOrDefineFactory(SkFlattenable*) override;
private:
SkPipeCanvas* fPipeCanvas = nullptr;
SkWStream* fStream = nullptr;
SkTypefaceSerializer* fTFSerializer = nullptr;
// All our keys (at the moment) are 32bit uniqueIDs
SkTIndexSet<uint32_t> fImages;
SkTIndexSet<uint32_t> fPictures;
SkTIndexSet<uint32_t> fTypefaces;
SkTIndexSet<SkFlattenable::Factory> fFactories;
};
class SkPipeCanvas : public SkCanvas {
public:
SkPipeCanvas(const SkRect& cull, SkPipeDeduper*, SkWStream*);
~SkPipeCanvas() override;
protected:
void willSave() override;
SaveLayerStrategy getSaveLayerStrategy(const SaveLayerRec&) override;
void willRestore() override;
void didConcat(const SkMatrix&) override;
void didSetMatrix(const SkMatrix&) override;
void onDrawArc(const SkRect&, SkScalar startAngle, SkScalar sweepAngle, bool useCenter,
const SkPaint&) override;
void onDrawAtlas(const SkImage*, const SkRSXform[], const SkRect[], const SkColor[],
int count, SkXfermode::Mode, const SkRect* cull, const SkPaint*) override;
void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) override;
void onDrawText(const void* text, size_t byteLength, SkScalar x, SkScalar y,
const SkPaint&) override;
void onDrawPosText(const void* text, size_t byteLength, const SkPoint pos[],
const SkPaint&) override;
void onDrawPosTextH(const void* text, size_t byteLength, const SkScalar xpos[],
SkScalar constY, const SkPaint&) override;
void onDrawTextOnPath(const void* text, size_t byteLength, const SkPath&, const SkMatrix*,
const SkPaint&) override;
void onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y, const SkPaint&) override;
void onDrawTextRSXform(const void* text, size_t byteLength, const SkRSXform xform[],
const SkRect* cull, const SkPaint& paint) override;
void onDrawPatch(const SkPoint cubics[12], const SkColor colors[4], const SkPoint texCoords[4],
SkXfermode*, const SkPaint&) override;
void onDrawPaint(const SkPaint&) override;
void onDrawPoints(PointMode, size_t count, const SkPoint pts[], const SkPaint&) override;
void onDrawRect(const SkRect&, const SkPaint&) override;
void onDrawOval(const SkRect&, const SkPaint&) override;
void onDrawRegion(const SkRegion&, const SkPaint&) override;
void onDrawRRect(const SkRRect&, const SkPaint&) override;
void onDrawPath(const SkPath&, const SkPaint&) override;
void onDrawImage(const SkImage*, SkScalar left, SkScalar top, const SkPaint*) override;
void onDrawImageRect(const SkImage*, const SkRect* src, const SkRect& dst,
const SkPaint*, SrcRectConstraint) override;
void onDrawImageNine(const SkImage*, const SkIRect& center, const SkRect& dst,
const SkPaint*) override;
void onDrawImageLattice(const SkImage*, const Lattice& lattice, const SkRect& dst,
const SkPaint*) override;
void onDrawVertices(VertexMode vmode, int vertexCount,
const SkPoint vertices[], const SkPoint texs[],
const SkColor colors[], SkXfermode* xmode,
const uint16_t indices[], int indexCount,
const SkPaint&) override;
void onClipRect(const SkRect&, SkRegion::Op, ClipEdgeStyle) override;
void onClipRRect(const SkRRect&, SkRegion::Op, ClipEdgeStyle) override;
void onClipPath(const SkPath&, SkRegion::Op, ClipEdgeStyle) override;
void onClipRegion(const SkRegion&, SkRegion::Op) override;
void onDrawPicture(const SkPicture*, const SkMatrix*, const SkPaint*) override;
void onDrawAnnotation(const SkRect&, const char[], SkData*) override;
// These we turn into images
void onDrawBitmap(const SkBitmap&, SkScalar left, SkScalar top, const SkPaint*) override;
void onDrawBitmapRect(const SkBitmap&, const SkRect* src, const SkRect& dst, const SkPaint*,
SrcRectConstraint) override;
void onDrawBitmapNine(const SkBitmap&, const SkIRect& center, const SkRect& dst,
const SkPaint*) override;
void onDrawBitmapLattice(const SkBitmap&, const Lattice& lattice, const SkRect& dst,
const SkPaint*) override;
private:
SkPipeDeduper* fDeduper;
SkWStream* fStream;
friend class SkPipeWriter;
typedef SkCanvas INHERITED;
};
#endif
|
