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Issue 1519243002: Remove many unused files from //skia/ext (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 5 years ago
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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 <jni.h>
9
10 #include "base/android/scoped_java_ref.h"
11 #include "third_party/skia/include/core/SkBitmap.h"
12 #include "ui/gfx/size.h"
13
14 namespace gfx {
15
16 // A Java counterpart will be generated for this enum.
17 // GENERATED_JAVA_ENUM_PACKAGE: org.chromium.ui.gfx
18 enum BitmapFormat {
19 BITMAP_FORMAT_NO_CONFIG,
20 BITMAP_FORMAT_ALPHA_8,
21 BITMAP_FORMAT_ARGB_4444,
22 BITMAP_FORMAT_ARGB_8888,
23 BITMAP_FORMAT_RGB_565,
24 };
25
26 // This class wraps a JNI AndroidBitmap object to make it easier to use. It
27 // handles locking and unlocking of the underlying pixels, along with wrapping
28 // various JNI methods.
29 class GFX_EXPORT JavaBitmap {
30 public:
31 explicit JavaBitmap(jobject bitmap);
32 ~JavaBitmap();
33
34 inline void* pixels() { return pixels_; }
35 inline const void* pixels() const { return pixels_; }
36 inline const gfx::Size& size() const { return size_; }
37 // Formats are in android/bitmap.h; e.g. ANDROID_BITMAP_FORMAT_RGBA_8888
38 inline int format() const { return format_; }
39 inline uint32_t stride() const { return stride_; }
40
41 // Registers methods with JNI and returns true if succeeded.
42 static bool RegisterJavaBitmap(JNIEnv* env);
43
44 private:
45 jobject bitmap_;
46 void* pixels_;
47 gfx::Size size_;
48 int format_;
49 uint32_t stride_;
50
51 DISALLOW_COPY_AND_ASSIGN(JavaBitmap);
52 };
53
54 // Allocates a Java-backed bitmap (android.graphics.Bitmap) with the given
55 // (non-empty!) size and color type.
56 GFX_EXPORT base::android::ScopedJavaLocalRef<jobject> CreateJavaBitmap(
57 int width,
58 int height,
59 SkColorType color_type);
60
61 // Loads an SkBitmap from the provided drawable resource identifier (e.g.,
62 // android:drawable/overscroll_glow). If the resource loads successfully, it
63 // will be integrally scaled down, preserving aspect ratio, to a size no smaller
64 // than |size|. Otherwise, an empty bitmap is returned.
65 GFX_EXPORT SkBitmap
66 CreateSkBitmapFromAndroidResource(const char* name, gfx::Size size);
67
68 // Converts |skbitmap| to a Java-backed bitmap (android.graphics.Bitmap).
69 // Note: |skbitmap| is assumed to be non-null, non-empty and one of RGBA_8888 or
70 // RGB_565 formats.
71 GFX_EXPORT base::android::ScopedJavaLocalRef<jobject> ConvertToJavaBitmap(
72 const SkBitmap* skbitmap);
73
74 // Converts |bitmap| to an SkBitmap of the same size and format.
75 // Note: |jbitmap| is assumed to be non-null, non-empty and of format RGBA_8888.
76 GFX_EXPORT SkBitmap CreateSkBitmapFromJavaBitmap(const JavaBitmap& jbitmap);
77
78 // Returns a Skia color type value for the requested input java Bitmap.Config.
79 GFX_EXPORT SkColorType ConvertToSkiaColorType(jobject jbitmap_config);
80
81 } // namespace gfx
82
83 #endif // UI_GFX_ANDROID_JAVA_BITMAP_H_
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