| // 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 UI_GFX_ANDROID_JAVA_BITMAP_H_ |
| #define UI_GFX_ANDROID_JAVA_BITMAP_H_ |
| |
| #include <jni.h> |
| #include <stdint.h> |
| |
| #include "base/android/scoped_java_ref.h" |
| #include "base/macros.h" |
| #include "third_party/skia/include/core/SkBitmap.h" |
| #include "ui/gfx/geometry/size.h" |
| #include "ui/gfx/gfx_export.h" |
| |
| namespace gfx { |
| |
| // A Java counterpart will be generated for this enum. |
| // GENERATED_JAVA_ENUM_PACKAGE: org.chromium.ui.gfx |
| // The order and values here match AndroidBitmapFormat, as verified |
| // by static_asserts in java_bitmap.cc. |
| enum BitmapFormat { |
| BITMAP_FORMAT_NO_CONFIG = 0, |
| BITMAP_FORMAT_ARGB_8888 = 1, |
| BITMAP_FORMAT_RGB_565 = 4, |
| BITMAP_FORMAT_ARGB_4444 = 7, |
| BITMAP_FORMAT_ALPHA_8 = 8, |
| }; |
| |
| // This class wraps a JNI AndroidBitmap object to make it easier to use. It |
| // handles locking and unlocking of the underlying pixels, along with wrapping |
| // various JNI methods. |
| class GFX_EXPORT JavaBitmap { |
| public: |
| explicit JavaBitmap(const base::android::JavaRef<jobject>& bitmap); |
| |
| JavaBitmap(const JavaBitmap&) = delete; |
| JavaBitmap& operator=(const JavaBitmap&) = delete; |
| |
| ~JavaBitmap(); |
| |
| inline void* pixels() { return pixels_; } |
| inline const void* pixels() const { return pixels_; } |
| inline const gfx::Size& size() const { return size_; } |
| inline BitmapFormat format() const { return format_; } |
| inline uint32_t bytes_per_row() const { return bytes_per_row_; } |
| inline int byte_count() const { return byte_count_; } |
| |
| private: |
| base::android::ScopedJavaGlobalRef<jobject> bitmap_; |
| void* pixels_; |
| gfx::Size size_; |
| BitmapFormat format_; |
| uint32_t bytes_per_row_; |
| int byte_count_; |
| }; |
| |
| enum class OomBehavior { |
| kCrashOnOom, |
| kReturnNullOnOom, |
| }; |
| |
| // Converts |skbitmap| to a Java-backed bitmap (android.graphics.Bitmap). |
| // Note: |skbitmap| is assumed to be non-null, non-empty and one of RGBA_8888 or |
| // RGB_565 formats. |
| GFX_EXPORT base::android::ScopedJavaLocalRef<jobject> ConvertToJavaBitmap( |
| const SkBitmap& skbitmap, |
| OomBehavior reaction = OomBehavior::kCrashOnOom); |
| |
| // Converts |bitmap| to an SkBitmap of the same size and format. |
| // Note: |jbitmap| is assumed to be non-null, non-empty and of format RGBA_8888. |
| GFX_EXPORT SkBitmap CreateSkBitmapFromJavaBitmap(const JavaBitmap& jbitmap); |
| |
| // Returns a Skia color type value for the requested input java Bitmap.Config. |
| GFX_EXPORT SkColorType |
| ConvertToSkiaColorType(const base::android::JavaRef<jobject>& jbitmap_config); |
| |
| } // namespace gfx |
| |
| #endif // UI_GFX_ANDROID_JAVA_BITMAP_H_ |