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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 #ifndef CHROME_BROWSER_UI_LIBGTK2UI_SKIA_UTILS_GTK2_H_ | 5 #ifndef CHROME_BROWSER_UI_LIBGTK2UI_SKIA_UTILS_GTK2_H_ |
6 #define CHROME_BROWSER_UI_LIBGTK2UI_SKIA_UTILS_GTK2_H_ | 6 #define CHROME_BROWSER_UI_LIBGTK2UI_SKIA_UTILS_GTK2_H_ |
7 | 7 |
8 #include "third_party/skia/include/core/SkColor.h" | 8 #include "third_party/skia/include/core/SkColor.h" |
9 | 9 |
10 typedef struct _GdkColor GdkColor; | 10 typedef struct _GdkColor GdkColor; |
11 typedef struct _GdkPixbuf GdkPixbuf; | 11 typedef struct _GdkPixbuf GdkPixbuf; |
12 | 12 |
13 class SkBitmap; | 13 class SkBitmap; |
14 | 14 |
| 15 // Define a macro for creating GdkColors from RGB values. This is a macro to |
| 16 // allow static construction of literals, etc. Use this like: |
| 17 // GdkColor white = GDK_COLOR_RGB(0xff, 0xff, 0xff); |
| 18 #define GDK_COLOR_RGB(r, g, b) {0, r * ::libgtk2ui::kSkiaToGDKMultiplier, \ |
| 19 g * ::libgtk2ui::kSkiaToGDKMultiplier, \ |
| 20 b * ::libgtk2ui::kSkiaToGDKMultiplier} |
| 21 |
15 namespace libgtk2ui { | 22 namespace libgtk2ui { |
16 | 23 |
| 24 // Multiply uint8 color components by this. |
| 25 const int kSkiaToGDKMultiplier = 257; |
| 26 |
17 // Converts GdkColors to the ARGB layout Skia expects. | 27 // Converts GdkColors to the ARGB layout Skia expects. |
18 SkColor GdkColorToSkColor(GdkColor color); | 28 SkColor GdkColorToSkColor(GdkColor color); |
19 | 29 |
20 // Converts ARGB to GdkColor. | 30 // Converts ARGB to GdkColor. |
21 GdkColor SkColorToGdkColor(SkColor color); | 31 GdkColor SkColorToGdkColor(SkColor color); |
22 | 32 |
23 const SkBitmap GdkPixbufToImageSkia(GdkPixbuf* pixbuf); | 33 const SkBitmap GdkPixbufToImageSkia(GdkPixbuf* pixbuf); |
24 | 34 |
25 // Convert and copy a SkBitmap to a GdkPixbuf. NOTE: this uses BGRAToRGBA, so | 35 // Convert and copy a SkBitmap to a GdkPixbuf. NOTE: this uses BGRAToRGBA, so |
26 // it is an expensive operation. The returned GdkPixbuf will have a refcount of | 36 // it is an expensive operation. The returned GdkPixbuf will have a refcount of |
27 // 1, and the caller is responsible for unrefing it when done. | 37 // 1, and the caller is responsible for unrefing it when done. |
28 GdkPixbuf* GdkPixbufFromSkBitmap(const SkBitmap& bitmap); | 38 GdkPixbuf* GdkPixbufFromSkBitmap(const SkBitmap& bitmap); |
29 | 39 |
30 } // namespace libgtk2ui | 40 } // namespace libgtk2ui |
31 | 41 |
32 #endif // CHROME_BROWSER_UI_LIBGTK2UI_SKIA_UTILS_GTK2_H_ | 42 #endif // CHROME_BROWSER_UI_LIBGTK2UI_SKIA_UTILS_GTK2_H_ |
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