// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_UI_LIBGTK2UI_SKIA_UTILS_GTK2_H_
#define CHROME_BROWSER_UI_LIBGTK2UI_SKIA_UTILS_GTK2_H_
#include "third_party/skia/include/core/SkColor.h"
typedef struct _GdkColor GdkColor;
typedef struct _GdkPixbuf GdkPixbuf;
class SkBitmap;
// Define a macro for creating GdkColors from RGB values. This is a macro to
// allow static construction of literals, etc. Use this like:
// GdkColor white = GDK_COLOR_RGB(0xff, 0xff, 0xff);
#define GDK_COLOR_RGB(r, g, b) {0, r * ::libgtk2ui::kSkiaToGDKMultiplier, \
g * ::libgtk2ui::kSkiaToGDKMultiplier, \
b * ::libgtk2ui::kSkiaToGDKMultiplier}
namespace libgtk2ui {
// Multiply uint8 color components by this.
const int kSkiaToGDKMultiplier = 257;
// Converts GdkColors to the ARGB layout Skia expects.
SkColor GdkColorToSkColor(GdkColor color);
// Converts ARGB to GdkColor.
GdkColor SkColorToGdkColor(SkColor color);
const SkBitmap GdkPixbufToImageSkia(GdkPixbuf* pixbuf);
// Convert and copy a SkBitmap to a GdkPixbuf. NOTE: this uses BGRAToRGBA, so
// it is an expensive operation. The returned GdkPixbuf will have a refcount of
// 1, and the caller is responsible for unrefing it when done.
GdkPixbuf* GdkPixbufFromSkBitmap(const SkBitmap& bitmap);
} // namespace libgtk2ui
#endif // CHROME_BROWSER_UI_LIBGTK2UI_SKIA_UTILS_GTK2_H_