ui/gfx/android/java_bitmap.h

   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 UI_GFX_ANDROID_JAVA_BITMAP_H_
   6 #define UI_GFX_ANDROID_JAVA_BITMAP_H_
   7
   8 #include "base/android/scoped_java_ref.h"
   9 #include "ui/gfx/size.h"
  10
  11 class SkBitmap;
  12
  13 namespace gfx {
  14
  15 // This class wraps a JNI AndroidBitmap object to make it easier to use. It
  16 // handles locking and unlocking of the underlying pixels, along with wrapping
  17 // various JNI methods.
  18 class UI_EXPORT JavaBitmap {
  19  public:
  20   explicit JavaBitmap(jobject bitmap);
  21   ~JavaBitmap();
  22
  23   inline void* pixels() { return pixels_; }
  24   inline const gfx::Size& size() const { return size_; }
  25   // Formats are in android/bitmap.h; e.g. ANDROID_BITMAP_FORMAT_RGBA_8888
  26   inline int format() const { return format_; }
  27   inline uint32_t stride() const { return stride_; }
  28
  29  private:
  30   jobject bitmap_;
  31   void* pixels_;
  32   gfx::Size size_;
  33   int format_;
  34   uint32_t stride_;
  35
  36   DISALLOW_COPY_AND_ASSIGN(JavaBitmap);
  37 };
  38
  39 UI_EXPORT base::android::ScopedJavaLocalRef<jobject> CreateJavaBitmap(
  40     const gfx::Size& size);
  41
  42 UI_EXPORT base::android::ScopedJavaLocalRef<jobject> ConvertToJavaBitmap(
  43     const SkBitmap* skbitmap);
  44
  45 SkBitmap CreateSkBitmapFromResource(const char* name);
  46
  47 }  // namespace gfx
  48
  49 #endif  // UI_GFX_ANDROID_JAVA_BITMAP_H_