The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/gfx/skia/trunk/src/image/SkImage_Codec.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,78 @@
     1.4 +/*
     1.5 + * Copyright 2012 Google Inc.
     1.6 + *
     1.7 + * Use of this source code is governed by a BSD-style license that can be
     1.8 + * found in the LICENSE file.
     1.9 + */
    1.10 +
    1.11 +#include "SkImageDecoder.h"
    1.12 +#include "SkImage_Base.h"
    1.13 +#include "SkBitmap.h"
    1.14 +#include "SkCanvas.h"
    1.15 +#include "SkData.h"
    1.16 +
    1.17 +class SkImage_Codec : public SkImage_Base {
    1.18 +public:
    1.19 +    static SkImage* NewEmpty();
    1.20 +
    1.21 +    SkImage_Codec(SkData* encodedData, int width, int height);
    1.22 +    virtual ~SkImage_Codec();
    1.23 +
    1.24 +    virtual void onDraw(SkCanvas*, SkScalar, SkScalar, const SkPaint*) SK_OVERRIDE;
    1.25 +    virtual void onDrawRectToRect(SkCanvas*, const SkRect*, const SkRect&, const SkPaint*) SK_OVERRIDE;
    1.26 +
    1.27 +private:
    1.28 +    SkData*     fEncodedData;
    1.29 +    SkBitmap    fBitmap;
    1.30 +
    1.31 +    typedef SkImage_Base INHERITED;
    1.32 +};
    1.33 +
    1.34 +///////////////////////////////////////////////////////////////////////////////
    1.35 +
    1.36 +SkImage_Codec::SkImage_Codec(SkData* data, int width, int height) : INHERITED(width, height) {
    1.37 +    fEncodedData = data;
    1.38 +    fEncodedData->ref();
    1.39 +}
    1.40 +
    1.41 +SkImage_Codec::~SkImage_Codec() {
    1.42 +    fEncodedData->unref();
    1.43 +}
    1.44 +
    1.45 +void SkImage_Codec::onDraw(SkCanvas* canvas, SkScalar x, SkScalar y, const SkPaint* paint) {
    1.46 +    if (!fBitmap.pixelRef()) {
    1.47 +        if (!SkImageDecoder::DecodeMemory(fEncodedData->bytes(), fEncodedData->size(),
    1.48 +                                          &fBitmap)) {
    1.49 +            return;
    1.50 +        }
    1.51 +    }
    1.52 +    canvas->drawBitmap(fBitmap, x, y, paint);
    1.53 +}
    1.54 +
    1.55 +void SkImage_Codec::onDrawRectToRect(SkCanvas* canvas, const SkRect* src,
    1.56 +                                     const SkRect& dst, const SkPaint* paint) {
    1.57 +    if (!fBitmap.pixelRef()) {
    1.58 +        if (!SkImageDecoder::DecodeMemory(fEncodedData->bytes(), fEncodedData->size(),
    1.59 +                                          &fBitmap)) {
    1.60 +            return;
    1.61 +        }
    1.62 +    }
    1.63 +    canvas->drawBitmapRectToRect(fBitmap, src, dst, paint);
    1.64 +}
    1.65 +
    1.66 +///////////////////////////////////////////////////////////////////////////////
    1.67 +
    1.68 +SkImage* SkImage::NewEncodedData(SkData* data) {
    1.69 +    if (NULL == data) {
    1.70 +        return NULL;
    1.71 +    }
    1.72 +
    1.73 +    SkBitmap bitmap;
    1.74 +    if (!SkImageDecoder::DecodeMemory(data->bytes(), data->size(), &bitmap,
    1.75 +                                      SkBitmap::kNo_Config,
    1.76 +                                      SkImageDecoder::kDecodeBounds_Mode)) {
    1.77 +        return NULL;
    1.78 +    }
    1.79 +
    1.80 +    return SkNEW_ARGS(SkImage_Codec, (data, bitmap.width(), bitmap.height()));
    1.81 +}