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1 /* | 1 /* |
2 * Copyright 2014 Google Inc. | 2 * Copyright 2014 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #include "SkCanvas.h" | 8 #include "SkCanvas.h" |
9 #include "SkCanvasDrawable.h" | 9 #include "SkCanvasDrawable.h" |
10 #include "SkThread.h" | 10 #include "SkThread.h" |
11 | 11 |
12 static int32_t next_generation_id() { | 12 static int32_t next_generation_id() { |
13 static int32_t gCanvasDrawableGenerationID; | 13 static int32_t gCanvasDrawableGenerationID; |
14 | 14 |
15 // do a loop in case our global wraps around, as we never want to | 15 // do a loop in case our global wraps around, as we never want to |
16 // return a 0 | 16 // return a 0 |
17 int32_t genID; | 17 int32_t genID; |
18 do { | 18 do { |
19 genID = sk_atomic_inc(&gCanvasDrawableGenerationID) + 1; | 19 genID = sk_atomic_inc(&gCanvasDrawableGenerationID) + 1; |
20 } while (0 == genID); | 20 } while (0 == genID); |
21 return genID; | 21 return genID; |
22 } | 22 } |
23 | 23 |
24 SkCanvasDrawable::SkCanvasDrawable() : fGenerationID(0) {} | 24 SkCanvasDrawable::SkCanvasDrawable() : fGenerationID(0) {} |
25 | 25 |
26 static void draw_bbox(SkCanvas* canvas, const SkRect& r) { | |
27 SkPaint paint; | |
28 paint.setStyle(SkPaint::kStroke_Style); | |
29 paint.setColor(0xFFFF7088); | |
30 canvas->drawRect(r, paint); | |
31 canvas->drawLine(r.left(), r.top(), r.right(), r.bottom(), paint); | |
32 canvas->drawLine(r.left(), r.bottom(), r.right(), r.top(), paint); | |
33 } | |
34 | |
35 void SkCanvasDrawable::draw(SkCanvas* canvas) { | 26 void SkCanvasDrawable::draw(SkCanvas* canvas) { |
36 SkAutoCanvasRestore acr(canvas, true); | 27 SkAutoCanvasRestore acr(canvas, true); |
37 this->onDraw(canvas); | 28 this->onDraw(canvas); |
38 | |
39 if (false) { | |
40 draw_bbox(canvas, this->getBounds()); | |
41 } | |
42 } | 29 } |
43 | 30 |
44 SkPicture* SkCanvasDrawable::newPictureSnapshot(SkBBHFactory* bbhFactory, uint32
_t recordFlags) { | 31 SkPicture* SkCanvasDrawable::newPictureSnapshot(SkBBHFactory* bbhFactory, uint32
_t recordFlags) { |
45 return this->onNewPictureSnapshot(bbhFactory, recordFlags); | 32 return this->onNewPictureSnapshot(bbhFactory, recordFlags); |
46 } | 33 } |
47 | 34 |
48 uint32_t SkCanvasDrawable::getGenerationID() { | 35 uint32_t SkCanvasDrawable::getGenerationID() { |
49 if (0 == fGenerationID) { | 36 if (0 == fGenerationID) { |
50 fGenerationID = next_generation_id(); | 37 fGenerationID = next_generation_id(); |
51 } | 38 } |
52 return fGenerationID; | 39 return fGenerationID; |
53 } | 40 } |
54 | 41 |
55 SkRect SkCanvasDrawable::getBounds() { | 42 SkRect SkCanvasDrawable::getBounds() { |
56 return this->onGetBounds(); | 43 return this->onGetBounds(); |
57 } | 44 } |
58 | 45 |
59 void SkCanvasDrawable::notifyDrawingChanged() { | 46 void SkCanvasDrawable::notifyDrawingChanged() { |
60 fGenerationID = 0; | 47 fGenerationID = 0; |
61 } | 48 } |
62 | 49 |
63 ////////////////////////////////////////////////////////////////////////////////
///////// | 50 ////////////////////////////////////////////////////////////////////////////////
///////// |
64 | 51 |
65 #include "SkPictureRecorder.h" | 52 #include "SkPictureRecorder.h" |
66 | 53 |
67 SkPicture* SkCanvasDrawable::onNewPictureSnapshot(SkBBHFactory* bbhFactory, uint
32_t recordFlags) { | 54 SkPicture* SkCanvasDrawable::onNewPictureSnapshot(SkBBHFactory* bbhFactory, uint
32_t recordFlags) { |
| 55 const SkRect bounds = this->getBounds(); |
68 SkPictureRecorder recorder; | 56 SkPictureRecorder recorder; |
69 | 57 this->draw(recorder.beginRecording(bounds.width(), bounds.height(), bbhFacto
ry, recordFlags)); |
70 const SkRect bounds = this->getBounds(); | |
71 SkCanvas* canvas = recorder.beginRecording(bounds, bbhFactory, recordFlags); | |
72 this->draw(canvas); | |
73 if (false) { | |
74 draw_bbox(canvas, bounds); | |
75 } | |
76 return recorder.endRecording(); | 58 return recorder.endRecording(); |
77 } | 59 } |
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