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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 #include "chrome/browser/ui/libgtkui/skia_utils_gtk.h" | 5 #include "chrome/browser/ui/libgtkui/skia_utils_gtk.h" |
6 | 6 |
7 #include <gdk/gdk.h> | 7 #include <gdk/gdk.h> |
8 | 8 |
9 #include "base/logging.h" | 9 #include "base/logging.h" |
10 #include "third_party/skia/include/core/SkBitmap.h" | 10 #include "third_party/skia/include/core/SkBitmap.h" |
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81 NOTREACHED(); | 81 NOTREACHED(); |
82 } | 82 } |
83 | 83 |
84 return ret; | 84 return ret; |
85 } | 85 } |
86 | 86 |
87 GdkPixbuf* GdkPixbufFromSkBitmap(const SkBitmap& bitmap) { | 87 GdkPixbuf* GdkPixbufFromSkBitmap(const SkBitmap& bitmap) { |
88 if (bitmap.isNull()) | 88 if (bitmap.isNull()) |
89 return nullptr; | 89 return nullptr; |
90 | 90 |
91 SkAutoLockPixels lock_pixels(bitmap); | |
92 | |
93 int width = bitmap.width(); | 91 int width = bitmap.width(); |
94 int height = bitmap.height(); | 92 int height = bitmap.height(); |
95 | 93 |
96 GdkPixbuf* pixbuf = | 94 GdkPixbuf* pixbuf = |
97 gdk_pixbuf_new(GDK_COLORSPACE_RGB, // The only colorspace gtk supports. | 95 gdk_pixbuf_new(GDK_COLORSPACE_RGB, // The only colorspace gtk supports. |
98 TRUE, // There is an alpha channel. | 96 TRUE, // There is an alpha channel. |
99 8, width, height); | 97 8, width, height); |
100 | 98 |
101 // SkBitmaps are premultiplied, we need to unpremultiply them. | 99 // SkBitmaps are premultiplied, we need to unpremultiply them. |
102 const int kBytesPerPixel = 4; | 100 const int kBytesPerPixel = 4; |
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120 divided[i + 3] = alpha; | 118 divided[i + 3] = alpha; |
121 } | 119 } |
122 i += kBytesPerPixel; | 120 i += kBytesPerPixel; |
123 } | 121 } |
124 } | 122 } |
125 | 123 |
126 return pixbuf; | 124 return pixbuf; |
127 } | 125 } |
128 | 126 |
129 } // namespace libgtkui | 127 } // namespace libgtkui |
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