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.
5 #ifndef SKIA_EXT_BITMAP_PLATFORM_DEVICE_ANDROID_H_
6 #define SKIA_EXT_BITMAP_PLATFORM_DEVICE_ANDROID_H_
8 #include "base/memory/ref_counted.h"
9 #include "base/compiler_specific.h"
10 #include "skia/ext/platform_device.h"
14 // -----------------------------------------------------------------------------
15 // For now we just use SkBitmap for SkBitmapDevice
17 // This is all quite ok for test_shell. In the future we will want to use
18 // shared memory between the renderer and the main process at least. In this
19 // case we'll probably create the buffer from a precreated region of memory.
20 // -----------------------------------------------------------------------------
21 class BitmapPlatformDevice : public SkBitmapDevice, public PlatformDevice {
23 // Construct a BitmapPlatformDevice. |is_opaque| should be set if the caller
24 // knows the bitmap will be completely opaque and allows some optimizations.
25 // The bitmap is not initialized.
26 static BitmapPlatformDevice* Create(int width, int height, bool is_opaque);
28 // Construct a BitmapPlatformDevice, as above.
29 // If |is_opaque| is false, the bitmap is initialized to 0.
30 static BitmapPlatformDevice* CreateAndClear(int width, int height,
33 // This doesn't take ownership of |data|. If |data| is null, the bitmap
34 // is not initialized to 0.
35 static BitmapPlatformDevice* Create(int width, int height, bool is_opaque,
38 // Create a BitmapPlatformDevice from an already constructed bitmap;
39 // you should probably be using Create(). This may become private later if
40 // we ever have to share state between some native drawing UI and Skia, like
41 // the Windows and Mac versions of this class do.
42 explicit BitmapPlatformDevice(const SkBitmap& other);
43 virtual ~BitmapPlatformDevice();
45 virtual PlatformSurface BeginPlatformPaint() OVERRIDE;
46 virtual void DrawToNativeContext(PlatformSurface surface, int x, int y,
47 const PlatformRect* src_rect) OVERRIDE;
50 virtual SkBaseDevice* onCreateCompatibleDevice(SkBitmap::Config, int width,
51 int height, bool isOpaque,
52 Usage usage) OVERRIDE;
55 DISALLOW_COPY_AND_ASSIGN(BitmapPlatformDevice);
60 #endif // SKIA_EXT_BITMAP_PLATFORM_DEVICE_ANDROID_H_