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 3 // found in the LICENSE file. 4 5 #ifndef CHROME_BROWSER_UI_LIBGTK2UI_SKIA_UTILS_GTK2_H_ 6 #define CHROME_BROWSER_UI_LIBGTK2UI_SKIA_UTILS_GTK2_H_ 7 8 #include "third_party/skia/include/core/SkColor.h" 9 10 typedef struct _GdkColor GdkColor; 11 typedef struct _GdkPixbuf GdkPixbuf; 12 13 class SkBitmap; 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 22 namespace libgtk2ui { 23 24 // Multiply uint8 color components by this. 25 const int kSkiaToGDKMultiplier = 257; 26 27 // Converts GdkColors to the ARGB layout Skia expects. 28 SkColor GdkColorToSkColor(GdkColor color); 29 30 // Converts ARGB to GdkColor. 31 GdkColor SkColorToGdkColor(SkColor color); 32 33 const SkBitmap GdkPixbufToImageSkia(GdkPixbuf* pixbuf); 34 35 // Convert and copy a SkBitmap to a GdkPixbuf. NOTE: this uses BGRAToRGBA, so 36 // it is an expensive operation. The returned GdkPixbuf will have a refcount of 37 // 1, and the caller is responsible for unrefing it when done. 38 GdkPixbuf* GdkPixbufFromSkBitmap(const SkBitmap& bitmap); 39 40 } // namespace libgtk2ui 41 42 #endif // CHROME_BROWSER_UI_LIBGTK2UI_SKIA_UTILS_GTK2_H_ 43