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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 #include "skia/ext/bitmap_platform_device_android.h" | |
| 6 #include "skia/ext/platform_canvas.h" | |
| 7 | |
| 8 namespace skia { | |
| 9 | |
| 10 BitmapPlatformDevice* BitmapPlatformDevice::Create(int width, int height, | |
| 11 bool is_opaque) { | |
| 12 SkBitmap bitmap; | |
| 13 bitmap.setConfig(SkBitmap::kARGB_8888_Config, width, height, 0, | |
| 14 is_opaque ? kOpaque_SkAlphaType : kPremul_SkAlphaType); | |
| 15 if (bitmap.allocPixels()) { | |
| 16 // Follow the logic in SkCanvas::createDevice(), initialize the bitmap if it | |
| 17 // is not opaque. | |
| 18 if (!is_opaque) | |
| 19 bitmap.eraseARGB(0, 0, 0, 0); | |
| 20 return new BitmapPlatformDevice(bitmap); | |
| 21 } | |
| 22 return NULL; | |
| 23 } | |
| 24 | |
| 25 BitmapPlatformDevice* BitmapPlatformDevice::CreateAndClear(int width, | |
| 26 int height, | |
| 27 bool is_opaque) { | |
| 28 BitmapPlatformDevice* device = Create(width, height, is_opaque); | |
| 29 if (!is_opaque) | |
| 30 device->accessBitmap(true).eraseARGB(0, 0, 0, 0); | |
| 31 return device; | |
| 32 } | |
| 33 | |
| 34 BitmapPlatformDevice* BitmapPlatformDevice::Create(int width, int height, | |
| 35 bool is_opaque, | |
| 36 uint8_t* data) { | |
| 37 SkBitmap bitmap; | |
| 38 bitmap.setConfig(SkBitmap::kARGB_8888_Config, width, height, 0, | |
| 39 is_opaque ? kOpaque_SkAlphaType : kPremul_SkAlphaType); | |
| 40 if (data) | |
| 41 bitmap.setPixels(data); | |
| 42 else if (!bitmap.allocPixels()) | |
| 43 return NULL; | |
| 44 | |
| 45 return new BitmapPlatformDevice(bitmap); | |
| 46 } | |
| 47 | |
| 48 BitmapPlatformDevice::BitmapPlatformDevice(const SkBitmap& bitmap) | |
| 49 : SkBitmapDevice(bitmap) { | |
| 50 SetPlatformDevice(this, this); | |
| 51 } | |
| 52 | |
| 53 BitmapPlatformDevice::~BitmapPlatformDevice() { | |
| 54 } | |
| 55 | |
| 56 SkBaseDevice* BitmapPlatformDevice::onCreateCompatibleDevice( | |
| 57 SkBitmap::Config config, int width, int height, bool isOpaque, | |
| 58 Usage /*usage*/) { | |
| 59 SkASSERT(config == SkBitmap::kARGB_8888_Config); | |
| 60 return BitmapPlatformDevice::Create(width, height, isOpaque); | |
| 61 } | |
| 62 | |
| 63 PlatformSurface BitmapPlatformDevice::BeginPlatformPaint() { | |
| 64 // TODO(zhenghao): What should we return? The ptr to the address of the | |
| 65 // pixels? Maybe this won't be called at all. | |
| 66 return accessBitmap(true).getPixels(); | |
| 67 } | |
| 68 | |
| 69 void BitmapPlatformDevice::DrawToNativeContext( | |
| 70 PlatformSurface surface, int x, int y, const PlatformRect* src_rect) { | |
| 71 // Should never be called on Android. | |
| 72 SkASSERT(false); | |
| 73 } | |
| 74 | |
| 75 // PlatformCanvas impl | |
| 76 | |
| 77 SkCanvas* CreatePlatformCanvas(int width, int height, bool is_opaque, | |
| 78 uint8_t* data, OnFailureType failureType) { | |
| 79 skia::RefPtr<SkBaseDevice> dev = skia::AdoptRef( | |
| 80 BitmapPlatformDevice::Create(width, height, is_opaque, data)); | |
| 81 return CreateCanvas(dev, failureType); | |
| 82 } | |
| 83 | |
| 84 // Port of PlatformBitmap to android | |
| 85 PlatformBitmap::~PlatformBitmap() { | |
| 86 // Nothing to do. | |
| 87 } | |
| 88 | |
| 89 bool PlatformBitmap::Allocate(int width, int height, bool is_opaque) { | |
| 90 bitmap_.setConfig(SkBitmap::kARGB_8888_Config, width, height, 0, | |
| 91 is_opaque ? kOpaque_SkAlphaType : kPremul_SkAlphaType); | |
| 92 if (!bitmap_.allocPixels()) | |
| 93 return false; | |
| 94 | |
| 95 surface_ = bitmap_.getPixels(); | |
| 96 return true; | |
| 97 } | |
| 98 | |
| 99 } // namespace skia | |
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Chromium Code Reviews
Issue 59133008:
ozone: Support building without cairo (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src