Line data Source code
1 : /*
2 : * Copyright 2016 Google Inc.
3 : *
4 : * Use of this source code is governed by a BSD-style license that can be
5 : * found in the LICENSE file.
6 : */
7 :
8 : #ifndef SkPipeCanvas_DEFINED
9 : #define SkPipeCanvas_DEFINED
10 :
11 : #include "SkDeduper.h"
12 : #include "SkImage.h"
13 : #include "SkNoDrawCanvas.h"
14 : #include "SkPipe.h"
15 : #include "SkTypeface.h"
16 : #include "SkWriteBuffer.h"
17 :
18 : class SkPipeCanvas;
19 : class SkPipeWriter;
20 :
21 0 : template <typename T> class SkTIndexSet {
22 : public:
23 0 : void reset() { fArray.reset(); }
24 :
25 : // returns the found index or 0
26 0 : int find(const T& key) const {
27 0 : const Rec* stop = fArray.end();
28 0 : for (const Rec* curr = fArray.begin(); curr < stop; ++curr) {
29 0 : if (key == curr->fKey) {
30 0 : return curr->fIndex;
31 : }
32 : }
33 0 : return 0;
34 : }
35 :
36 : // returns the new index
37 0 : int add(const T& key) {
38 0 : Rec* rec = fArray.append();
39 0 : rec->fKey = key;
40 0 : rec->fIndex = fNextIndex++;
41 0 : return rec->fIndex;
42 : }
43 :
44 : private:
45 : struct Rec {
46 : T fKey;
47 : int fIndex;
48 : };
49 :
50 : SkTDArray<Rec> fArray;
51 : int fNextIndex = 1;
52 : };
53 :
54 0 : class SkPipeDeduper : public SkDeduper {
55 : public:
56 0 : void resetCaches() {
57 0 : fImages.reset();
58 0 : fPictures.reset();
59 0 : fTypefaces.reset();
60 0 : fFactories.reset();
61 0 : }
62 :
63 0 : void setCanvas(SkPipeCanvas* canvas) { fPipeCanvas = canvas; }
64 0 : void setStream(SkWStream* stream) { fStream = stream; }
65 0 : void setTypefaceSerializer(SkTypefaceSerializer* tfs) { fTFSerializer = tfs; }
66 0 : void setImageSerializer(SkImageSerializer* ims) { fIMSerializer = ims; }
67 :
68 : // returns 0 if not found
69 0 : int findImage(SkImage* image) const { return fImages.find(image->uniqueID()); }
70 0 : int findPicture(SkPicture* picture) const { return fPictures.find(picture->uniqueID()); }
71 :
72 : int findOrDefineImage(SkImage*) override;
73 : int findOrDefinePicture(SkPicture*) override;
74 : int findOrDefineTypeface(SkTypeface*) override;
75 : int findOrDefineFactory(SkFlattenable*) override;
76 :
77 : private:
78 : SkPipeCanvas* fPipeCanvas = nullptr;
79 : SkWStream* fStream = nullptr;
80 :
81 : SkTypefaceSerializer* fTFSerializer = nullptr;
82 : SkImageSerializer* fIMSerializer = nullptr;
83 :
84 : // All our keys (at the moment) are 32bit uniqueIDs
85 : SkTIndexSet<uint32_t> fImages;
86 : SkTIndexSet<uint32_t> fPictures;
87 : SkTIndexSet<uint32_t> fTypefaces;
88 : SkTIndexSet<SkFlattenable::Factory> fFactories;
89 : };
90 :
91 :
92 : class SkPipeCanvas : public SkNoDrawCanvas {
93 : public:
94 : SkPipeCanvas(const SkRect& cull, SkPipeDeduper*, SkWStream*);
95 : ~SkPipeCanvas() override;
96 :
97 : protected:
98 : void willSave() override;
99 : SaveLayerStrategy getSaveLayerStrategy(const SaveLayerRec&) override;
100 : void willRestore() override;
101 :
102 : void didConcat(const SkMatrix&) override;
103 : void didSetMatrix(const SkMatrix&) override;
104 :
105 : void onDrawArc(const SkRect&, SkScalar startAngle, SkScalar sweepAngle, bool useCenter,
106 : const SkPaint&) override;
107 : void onDrawAtlas(const SkImage*, const SkRSXform[], const SkRect[], const SkColor[],
108 : int count, SkBlendMode, const SkRect* cull, const SkPaint*) override;
109 : void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) override;
110 : void onDrawText(const void* text, size_t byteLength, SkScalar x, SkScalar y,
111 : const SkPaint&) override;
112 : void onDrawPosText(const void* text, size_t byteLength, const SkPoint pos[],
113 : const SkPaint&) override;
114 : void onDrawPosTextH(const void* text, size_t byteLength, const SkScalar xpos[],
115 : SkScalar constY, const SkPaint&) override;
116 : void onDrawTextOnPath(const void* text, size_t byteLength, const SkPath&, const SkMatrix*,
117 : const SkPaint&) override;
118 : void onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y, const SkPaint&) override;
119 : void onDrawTextRSXform(const void* text, size_t byteLength, const SkRSXform xform[],
120 : const SkRect* cull, const SkPaint& paint) override;
121 : void onDrawPatch(const SkPoint cubics[12], const SkColor colors[4], const SkPoint texCoords[4],
122 : SkBlendMode, const SkPaint&) override;
123 :
124 : void onDrawPaint(const SkPaint&) override;
125 : void onDrawPoints(PointMode, size_t count, const SkPoint pts[], const SkPaint&) override;
126 : void onDrawRect(const SkRect&, const SkPaint&) override;
127 : void onDrawOval(const SkRect&, const SkPaint&) override;
128 : void onDrawRegion(const SkRegion&, const SkPaint&) override;
129 : void onDrawRRect(const SkRRect&, const SkPaint&) override;
130 : void onDrawPath(const SkPath&, const SkPaint&) override;
131 :
132 : void onDrawImage(const SkImage*, SkScalar left, SkScalar top, const SkPaint*) override;
133 : void onDrawImageRect(const SkImage*, const SkRect* src, const SkRect& dst,
134 : const SkPaint*, SrcRectConstraint) override;
135 : void onDrawImageNine(const SkImage*, const SkIRect& center, const SkRect& dst,
136 : const SkPaint*) override;
137 : void onDrawImageLattice(const SkImage*, const Lattice& lattice, const SkRect& dst,
138 : const SkPaint*) override;
139 : void onDrawVerticesObject(const SkVertices*, SkBlendMode, const SkPaint&) override;
140 :
141 : void onClipRect(const SkRect&, SkClipOp, ClipEdgeStyle) override;
142 : void onClipRRect(const SkRRect&, SkClipOp, ClipEdgeStyle) override;
143 : void onClipPath(const SkPath&, SkClipOp, ClipEdgeStyle) override;
144 : void onClipRegion(const SkRegion&, SkClipOp) override;
145 :
146 : void onDrawPicture(const SkPicture*, const SkMatrix*, const SkPaint*) override;
147 : void onDrawAnnotation(const SkRect&, const char[], SkData*) override;
148 :
149 : // These we turn into images
150 : void onDrawBitmap(const SkBitmap&, SkScalar left, SkScalar top, const SkPaint*) override;
151 : void onDrawBitmapRect(const SkBitmap&, const SkRect* src, const SkRect& dst, const SkPaint*,
152 : SrcRectConstraint) override;
153 : void onDrawBitmapNine(const SkBitmap&, const SkIRect& center, const SkRect& dst,
154 : const SkPaint*) override;
155 : void onDrawBitmapLattice(const SkBitmap&, const Lattice& lattice, const SkRect& dst,
156 : const SkPaint*) override;
157 :
158 : private:
159 : SkPipeDeduper* fDeduper;
160 : SkWStream* fStream;
161 :
162 : friend class SkPipeWriter;
163 :
164 : typedef SkNoDrawCanvas INHERITED;
165 : };
166 :
167 :
168 : #endif
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