The Tor Browser / file comparison
comparison: gfx/skia/trunk/src/image/SkImage_Codec.cpp
gfx/skia/trunk/src/image/SkImage_Codec.cpp
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:0368f5d97bff |
|---|---|
| 1 /* | |
| 2 * Copyright 2012 Google Inc. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license that can be | |
| 5 * found in the LICENSE file. | |
| 6 */ | |
| 7 | |
| 8 #include "SkImageDecoder.h" | |
| 9 #include "SkImage_Base.h" | |
| 10 #include "SkBitmap.h" | |
| 11 #include "SkCanvas.h" | |
| 12 #include "SkData.h" | |
| 13 | |
| 14 class SkImage_Codec : public SkImage_Base { | |
| 15 public: | |
| 16 static SkImage* NewEmpty(); | |
| 17 | |
| 18 SkImage_Codec(SkData* encodedData, int width, int height); | |
| 19 virtual ~SkImage_Codec(); | |
| 20 | |
| 21 virtual void onDraw(SkCanvas*, SkScalar, SkScalar, const SkPaint*) SK_OVERRIDE; | |
| 22 virtual void onDrawRectToRect(SkCanvas*, const SkRect*, const SkRect&, const SkPaint*) SK_OVERRIDE; | |
| 23 | |
| 24 private: | |
| 25 SkData* fEncodedData; | |
| 26 SkBitmap fBitmap; | |
| 27 | |
| 28 typedef SkImage_Base INHERITED; | |
| 29 }; | |
| 30 | |
| 31 /////////////////////////////////////////////////////////////////////////////// | |
| 32 | |
| 33 SkImage_Codec::SkImage_Codec(SkData* data, int width, int height) : INHERITED(width, height) { | |
| 34 fEncodedData = data; | |
| 35 fEncodedData->ref(); | |
| 36 } | |
| 37 | |
| 38 SkImage_Codec::~SkImage_Codec() { | |
| 39 fEncodedData->unref(); | |
| 40 } | |
| 41 | |
| 42 void SkImage_Codec::onDraw(SkCanvas* canvas, SkScalar x, SkScalar y, const SkPaint* paint) { | |
| 43 if (!fBitmap.pixelRef()) { | |
| 44 if (!SkImageDecoder::DecodeMemory(fEncodedData->bytes(), fEncodedData->size(), | |
| 45 &fBitmap)) { | |
| 46 return; | |
| 47 } | |
| 48 } | |
| 49 canvas->drawBitmap(fBitmap, x, y, paint); | |
| 50 } | |
| 51 | |
| 52 void SkImage_Codec::onDrawRectToRect(SkCanvas* canvas, const SkRect* src, | |
| 53 const SkRect& dst, const SkPaint* paint) { | |
| 54 if (!fBitmap.pixelRef()) { | |
| 55 if (!SkImageDecoder::DecodeMemory(fEncodedData->bytes(), fEncodedData->size(), | |
| 56 &fBitmap)) { | |
| 57 return; | |
| 58 } | |
| 59 } | |
| 60 canvas->drawBitmapRectToRect(fBitmap, src, dst, paint); | |
| 61 } | |
| 62 | |
| 63 /////////////////////////////////////////////////////////////////////////////// | |
| 64 | |
| 65 SkImage* SkImage::NewEncodedData(SkData* data) { | |
| 66 if (NULL == data) { | |
| 67 return NULL; | |
| 68 } | |
| 69 | |
| 70 SkBitmap bitmap; | |
| 71 if (!SkImageDecoder::DecodeMemory(data->bytes(), data->size(), &bitmap, | |
| 72 SkBitmap::kNo_Config, | |
| 73 SkImageDecoder::kDecodeBounds_Mode)) { | |
| 74 return NULL; | |
| 75 } | |
| 76 | |
| 77 return SkNEW_ARGS(SkImage_Codec, (data, bitmap.width(), bitmap.height())); | |
| 78 } |
