OLD | NEW |
1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "content/browser/renderer_host/backing_store_skia.h" | 5 #include "content/browser/renderer_host/backing_store_skia.h" |
6 | 6 |
7 #include "content/browser/renderer_host/render_process_host.h" | 7 #include "content/browser/renderer_host/render_process_host_impl.h" |
8 #include "skia/ext/platform_canvas.h" | 8 #include "skia/ext/platform_canvas.h" |
9 #include "third_party/skia/include/core/SkCanvas.h" | 9 #include "third_party/skia/include/core/SkCanvas.h" |
10 #include "ui/gfx/canvas.h" | 10 #include "ui/gfx/canvas.h" |
11 #include "ui/gfx/canvas_skia.h" | 11 #include "ui/gfx/canvas_skia.h" |
12 #include "ui/gfx/rect.h" | 12 #include "ui/gfx/rect.h" |
13 | 13 |
14 // Assume that somewhere along the line, someone will do width * height * 4 | 14 // Assume that somewhere along the line, someone will do width * height * 4 |
15 // with signed numbers. If the maximum value is 2**31, then 2**31 / 4 = | 15 // with signed numbers. If the maximum value is 2**31, then 2**31 / 4 = |
16 // 2**29 and floor(sqrt(2**29)) = 23170. | 16 // 2**29 and floor(sqrt(2**29)) = 23170. |
17 | 17 |
(...skipping 17 matching lines...) Expand all Loading... |
35 SkIntToScalar(point.x()), SkIntToScalar(point.y())); | 35 SkIntToScalar(point.x()), SkIntToScalar(point.y())); |
36 } | 36 } |
37 | 37 |
38 size_t BackingStoreSkia::MemorySize() { | 38 size_t BackingStoreSkia::MemorySize() { |
39 // NOTE: The computation may be different when the canvas is a subrectangle of | 39 // NOTE: The computation may be different when the canvas is a subrectangle of |
40 // a larger bitmap. | 40 // a larger bitmap. |
41 return size().GetArea() * 4; | 41 return size().GetArea() * 4; |
42 } | 42 } |
43 | 43 |
44 void BackingStoreSkia::PaintToBackingStore( | 44 void BackingStoreSkia::PaintToBackingStore( |
45 RenderProcessHost* process, | 45 content::RenderProcessHost* process, |
46 TransportDIB::Id bitmap, | 46 TransportDIB::Id bitmap, |
47 const gfx::Rect& bitmap_rect, | 47 const gfx::Rect& bitmap_rect, |
48 const std::vector<gfx::Rect>& copy_rects, | 48 const std::vector<gfx::Rect>& copy_rects, |
49 const base::Closure& completion_callback, | 49 const base::Closure& completion_callback, |
50 bool* scheduled_completion_callback) { | 50 bool* scheduled_completion_callback) { |
51 *scheduled_completion_callback = false; | 51 *scheduled_completion_callback = false; |
52 if (bitmap_rect.IsEmpty()) | 52 if (bitmap_rect.IsEmpty()) |
53 return; | 53 return; |
54 | 54 |
55 const int width = bitmap_rect.width(); | 55 const int width = bitmap_rect.width(); |
(...skipping 46 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
102 return false; | 102 return false; |
103 | 103 |
104 SkBitmap bitmap = skia::GetTopDevice(*output)->accessBitmap(true); | 104 SkBitmap bitmap = skia::GetTopDevice(*output)->accessBitmap(true); |
105 SkIRect skrect = SkIRect::MakeXYWH(rect.x(), rect.y(), width, height); | 105 SkIRect skrect = SkIRect::MakeXYWH(rect.x(), rect.y(), width, height); |
106 SkBitmap b; | 106 SkBitmap b; |
107 if (!canvas_->readPixels(skrect, &b)) | 107 if (!canvas_->readPixels(skrect, &b)) |
108 return false; | 108 return false; |
109 output->writePixels(b, rect.x(), rect.y()); | 109 output->writePixels(b, rect.x(), rect.y()); |
110 return true; | 110 return true; |
111 } | 111 } |
OLD | NEW |