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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "skia/ext/bitmap_platform_device_skia.h" | 5 #include "skia/ext/bitmap_platform_device_skia.h" |
6 #include "skia/ext/platform_canvas.h" | 6 #include "skia/ext/platform_canvas.h" |
7 | 7 |
8 namespace skia { | 8 namespace skia { |
9 | 9 |
10 BitmapPlatformDevice* BitmapPlatformDevice::Create(int width, int height, | 10 BitmapPlatformDevice* BitmapPlatformDevice::Create(int width, int height, |
11 bool is_opaque) { | 11 bool is_opaque) { |
12 return Create(width, height, is_opaque, nullptr); | 12 SkBitmap bitmap; |
| 13 if (bitmap.tryAllocN32Pixels(width, height, is_opaque)) { |
| 14 // Follow the logic in SkCanvas::createDevice(), initialize the bitmap if it |
| 15 // is not opaque. |
| 16 if (!is_opaque) |
| 17 bitmap.eraseARGB(0, 0, 0, 0); |
| 18 return new BitmapPlatformDevice(bitmap); |
| 19 } |
| 20 return NULL; |
13 } | 21 } |
14 | 22 |
15 BitmapPlatformDevice* BitmapPlatformDevice::Create(int width, int height, | 23 BitmapPlatformDevice* BitmapPlatformDevice::Create(int width, int height, |
16 bool is_opaque, | 24 bool is_opaque, |
17 uint8_t* data) { | 25 uint8_t* data) { |
18 SkBitmap bitmap; | 26 SkBitmap bitmap; |
19 bitmap.setInfo(SkImageInfo::MakeN32(width, height, | 27 bitmap.setInfo(SkImageInfo::MakeN32(width, height, |
20 is_opaque ? kOpaque_SkAlphaType : kPremul_SkAlphaType)); | 28 is_opaque ? kOpaque_SkAlphaType : kPremul_SkAlphaType)); |
21 | 29 if (data) |
22 if (data) { | |
23 bitmap.setPixels(data); | 30 bitmap.setPixels(data); |
24 } else { | 31 else if (!bitmap.tryAllocPixels()) |
25 if (!bitmap.tryAllocPixels()) | 32 return NULL; |
26 return nullptr; | |
27 // Follow the logic in SkCanvas::createDevice(), initialize the bitmap if | |
28 // it is not opaque. | |
29 if (!is_opaque) | |
30 bitmap.eraseARGB(0, 0, 0, 0); | |
31 } | |
32 | 33 |
33 return new BitmapPlatformDevice(bitmap); | 34 return new BitmapPlatformDevice(bitmap); |
34 } | 35 } |
35 | 36 |
36 BitmapPlatformDevice::BitmapPlatformDevice(const SkBitmap& bitmap) | 37 BitmapPlatformDevice::BitmapPlatformDevice(const SkBitmap& bitmap) |
37 : SkBitmapDevice(bitmap) { | 38 : SkBitmapDevice(bitmap) { |
38 SetPlatformDevice(this, this); | 39 SetPlatformDevice(this, this); |
39 } | 40 } |
40 | 41 |
41 BitmapPlatformDevice::~BitmapPlatformDevice() { | 42 BitmapPlatformDevice::~BitmapPlatformDevice() { |
42 } | 43 } |
43 | 44 |
44 SkBaseDevice* BitmapPlatformDevice::onCreateDevice(const CreateInfo& info, | 45 SkBaseDevice* BitmapPlatformDevice::onCreateDevice(const CreateInfo& info, |
45 const SkPaint*) { | 46 const SkPaint*) { |
46 SkASSERT(info.fInfo.colorType() == kN32_SkColorType); | 47 SkASSERT(info.fInfo.colorType() == kN32_SkColorType); |
47 return BitmapPlatformDevice::Create(info.fInfo.width(), info.fInfo.height(), | 48 return BitmapPlatformDevice::Create(info.fInfo.width(), info.fInfo.height(), |
48 info.fInfo.isOpaque()); | 49 info.fInfo.isOpaque()); |
49 } | 50 } |
50 | 51 |
| 52 NativeDrawingContext BitmapPlatformDevice::BeginPlatformPaint( |
| 53 const SkMatrix& transform, |
| 54 const SkIRect& clip_bounds) { |
| 55 // TODO(zhenghao): What should we return? The ptr to the address of the |
| 56 // pixels? Maybe this won't be called at all. |
| 57 SkPixmap pixmap; |
| 58 return accessPixels(&pixmap) ? pixmap.writable_addr() : nullptr; |
| 59 } |
| 60 |
51 // PlatformCanvas impl | 61 // PlatformCanvas impl |
52 | 62 |
53 std::unique_ptr<SkCanvas> CreatePlatformCanvasWithPixels( | 63 std::unique_ptr<SkCanvas> CreatePlatformCanvasWithPixels( |
54 int width, | 64 int width, |
55 int height, | 65 int height, |
56 bool is_opaque, | 66 bool is_opaque, |
57 uint8_t* data, | 67 uint8_t* data, |
58 OnFailureType failureType) { | 68 OnFailureType failureType) { |
59 sk_sp<SkBaseDevice> dev( | 69 sk_sp<SkBaseDevice> dev( |
60 BitmapPlatformDevice::Create(width, height, is_opaque, data)); | 70 BitmapPlatformDevice::Create(width, height, is_opaque, data)); |
61 return CreateCanvas(dev, failureType); | 71 return CreateCanvas(dev, failureType); |
62 } | 72 } |
63 | 73 |
64 } // namespace skia | 74 } // namespace skia |
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