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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
dmichael (off chromium)
2014/05/29 16:28:04
I think it's preferred to leave off the "(c)". Als
Yufeng Shen (Slow to review)
2014/05/29 18:29:20
Done.
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2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
dmichael (off chromium)
2014/05/29 16:28:04
This file doesn't seem to belong in ppapi/examples
Yufeng Shen (Slow to review)
2014/05/29 18:29:20
I moved the source to
tools/perf/page_sets/tough_s
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4 | |
5 #include <algorithm> | |
6 | |
7 #include "ppapi/c/pp_input_event.h" | |
8 #include "ppapi/cpp/graphics_2d.h" | |
9 #include "ppapi/cpp/image_data.h" | |
10 #include "ppapi/cpp/input_event.h" | |
11 #include "ppapi/cpp/instance.h" | |
12 #include "ppapi/cpp/logging.h" | |
dmichael (off chromium)
2014/05/29 16:28:04
You don't seem to be using this?
Yufeng Shen (Slow to review)
2014/05/29 18:29:20
Done.
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13 #include "ppapi/cpp/module.h" | |
14 #include "ppapi/cpp/private/input_event_private.h" | |
15 #include "ppapi/cpp/size.h" | |
16 #include "ppapi/cpp/view.h" | |
17 #include "ppapi/utility/graphics/paint_manager.h" | |
18 | |
19 pp::Rect SquareForTouchPoint(int x, int y) { | |
20 return PP_MakeRectFromXYWH(x - 30, y - 30, | |
21 30 * 2 + 1, 30 * 2 + 1); | |
22 } | |
23 | |
24 static void FillRect(pp::ImageData* image, | |
25 int left, int top, int width, int height, | |
26 uint32_t color) { | |
dmichael (off chromium)
2014/05/29 16:28:04
nit: params in a function declaration or definitio
Yufeng Shen (Slow to review)
2014/05/29 18:29:20
Done.
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27 for (int y = std::max(0, top); | |
28 y < std::min(image->size().height() - 1, top + height); | |
29 y++) { | |
30 for (int x = std::max(0, left); | |
31 x < std::min(image->size().width() - 1, left + width); | |
32 x++) | |
dmichael (off chromium)
2014/05/29 16:28:04
nit: since the "for" covers multiple lines, we wou
Yufeng Shen (Slow to review)
2014/05/29 18:29:20
Done.
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33 *image->GetAddr32(pp::Point(x, y)) = color; | |
34 } | |
35 } | |
36 | |
37 class MyInstance : public pp::Instance, public pp::PaintManager::Client { | |
38 public: | |
39 MyInstance(PP_Instance instance) | |
dmichael (off chromium)
2014/05/29 16:28:04
nit: explicit
Yufeng Shen (Slow to review)
2014/05/29 18:29:20
Done.
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40 : pp::Instance(instance), | |
41 paint_manager_() { | |
42 paint_manager_.Initialize(this, this, false); | |
43 RequestInputEvents(PP_INPUTEVENT_CLASS_TOUCH); | |
44 pp::InputEventPrivate::StartTrackingLatency(pp::InstanceHandle(instance)); | |
dmichael (off chromium)
2014/05/29 16:28:04
If this stays as an example in ppapi/examples, you
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45 } | |
46 | |
47 virtual bool HandleInputEvent(const pp::InputEvent& event) { | |
48 switch (event.GetType()) { | |
49 case PP_INPUTEVENT_TYPE_TOUCHSTART: | |
50 case PP_INPUTEVENT_TYPE_TOUCHEND: | |
51 case PP_INPUTEVENT_TYPE_TOUCHCANCEL: { | |
52 pp::InputEventPrivate private_event(event); | |
53 private_event.TraceInputLatency(false); | |
54 return true; | |
55 } | |
56 | |
57 case PP_INPUTEVENT_TYPE_TOUCHMOVE: { | |
58 pp::TouchInputEvent touch(event); | |
59 uint32_t count = touch.GetTouchCount(PP_TOUCHLIST_TYPE_CHANGEDTOUCHES); | |
60 if (count > 0) { | |
61 pp::TouchPoint point = touch.GetTouchByIndex( | |
62 PP_TOUCHLIST_TYPE_CHANGEDTOUCHES, 0); | |
63 UpdateSquareTouch(static_cast<int>(point.position().x()), | |
64 static_cast<int>(point.position().y())); | |
65 pp::InputEventPrivate private_event(event); | |
66 private_event.TraceInputLatency(true); | |
67 } else { | |
68 pp::InputEventPrivate private_event(event); | |
69 private_event.TraceInputLatency(false); | |
70 } | |
71 return true; | |
72 } | |
73 default: | |
74 return false; | |
75 } | |
76 } | |
77 | |
78 virtual void DidChangeView(const pp::View& view) { | |
79 paint_manager_.SetSize(view.GetRect().size()); | |
80 } | |
81 | |
82 // PaintManager::Client implementation. | |
83 virtual bool OnPaint(pp::Graphics2D& graphics_2d, | |
84 const std::vector<pp::Rect>& paint_rects, | |
85 const pp::Rect& paint_bounds) { | |
86 pp::ImageData updated_image(this, PP_IMAGEDATAFORMAT_BGRA_PREMUL, | |
87 paint_bounds.size(), false); | |
88 | |
89 for (size_t i = 0; i < paint_rects.size(); i++) { | |
90 // Since our image is just the invalid region, we need to offset the | |
91 // areas we paint by that much. This is just a light blue background. | |
92 FillRect(&updated_image, | |
93 paint_rects[i].x(), | |
94 paint_rects[i].y(), | |
95 paint_rects[i].width(), | |
96 paint_rects[i].height(), | |
97 0xFF000000); | |
98 } | |
99 | |
100 graphics_2d.PaintImageData(updated_image, paint_bounds.point()); | |
101 return true; | |
102 } | |
103 | |
104 private: | |
105 void UpdateSquareTouch(int x, int y) { | |
106 paint_manager_.InvalidateRect(SquareForTouchPoint(x, y)); | |
107 } | |
108 | |
109 pp::PaintManager paint_manager_; | |
110 }; | |
111 | |
112 class MyModule : public pp::Module { | |
113 public: | |
114 virtual pp::Instance* CreateInstance(PP_Instance instance) { | |
115 return new MyInstance(instance); | |
116 } | |
117 }; | |
118 | |
119 namespace pp { | |
120 | |
121 Module* CreateModule() { | |
122 return new MyModule(); | |
123 } | |
124 | |
125 } // namespace pp | |
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