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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 #import <Cocoa/Cocoa.h> | 5 #import <Cocoa/Cocoa.h> |
6 | 6 |
7 #include "content/browser/renderer_host/backing_store_mac.h" | 7 #include "content/browser/renderer_host/backing_store_mac.h" |
8 | 8 |
9 #include "base/logging.h" | 9 #include "base/logging.h" |
10 #include "base/mac/mac_util.h" | 10 #include "base/mac/mac_util.h" |
11 #include "base/mac/scoped_cftyperef.h" | 11 #include "base/mac/scoped_cftyperef.h" |
12 #include "content/browser/renderer_host/render_process_host_impl.h" | 12 #include "content/browser/renderer_host/render_process_host_impl.h" |
13 #include "content/browser/renderer_host/render_widget_host_impl.h" | 13 #include "content/browser/renderer_host/render_widget_host_impl.h" |
14 #include "content/public/browser/render_widget_host_view.h" | 14 #include "content/public/browser/render_widget_host_view.h" |
15 #include "skia/ext/platform_canvas.h" | 15 #include "skia/ext/platform_canvas.h" |
16 #include "third_party/skia/include/core/SkBitmap.h" | 16 #include "third_party/skia/include/core/SkBitmap.h" |
17 #include "third_party/skia/include/core/SkCanvas.h" | 17 #include "third_party/skia/include/core/SkCanvas.h" |
18 #include "ui/gfx/rect.h" | 18 #include "ui/gfx/rect.h" |
19 #include "ui/gfx/scoped_cg_context_save_gstate_mac.h" | 19 #include "ui/gfx/scoped_cg_context_save_gstate_mac.h" |
20 #include "ui/gfx/surface/transport_dib.h" | 20 #include "ui/surface/transport_dib.h" |
21 | 21 |
22 // Mac Backing Stores: | 22 // Mac Backing Stores: |
23 // | 23 // |
24 // Since backing stores are only ever written to or drawn into windows, we keep | 24 // Since backing stores are only ever written to or drawn into windows, we keep |
25 // our backing store in a CGLayer that can get cached in GPU memory. This | 25 // our backing store in a CGLayer that can get cached in GPU memory. This |
26 // allows acclerated drawing into the layer and lets scrolling and such happen | 26 // allows acclerated drawing into the layer and lets scrolling and such happen |
27 // all or mostly on the GPU, which is good for performance. | 27 // all or mostly on the GPU, which is good for performance. |
28 | 28 |
29 BackingStoreMac::BackingStoreMac(content::RenderWidgetHost* widget, | 29 BackingStoreMac::BackingStoreMac(content::RenderWidgetHost* widget, |
30 const gfx::Size& size) | 30 const gfx::Size& size) |
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237 CGContextRef context = CGBitmapContextCreate(NULL, | 237 CGContextRef context = CGBitmapContextCreate(NULL, |
238 size().width(), size().height(), | 238 size().width(), size().height(), |
239 8, size().width() * 4, | 239 8, size().width() * 4, |
240 base::mac::GetSystemColorSpace(), | 240 base::mac::GetSystemColorSpace(), |
241 kCGImageAlphaPremultipliedFirst | | 241 kCGImageAlphaPremultipliedFirst | |
242 kCGBitmapByteOrder32Host); | 242 kCGBitmapByteOrder32Host); |
243 DCHECK(context); | 243 DCHECK(context); |
244 | 244 |
245 return context; | 245 return context; |
246 } | 246 } |
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