gfx/skia/trunk/src/image/SkImage_Picture.cpp

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/gfx/skia/trunk/src/image/SkImage_Picture.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,66 @@
     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 "SkImage_Base.h"
    1.12 +#include "SkImagePriv.h"
    1.13 +#include "SkPicture.h"
    1.14 +
    1.15 +class SkImage_Picture : public SkImage_Base {
    1.16 +public:
    1.17 +    SkImage_Picture(SkPicture*);
    1.18 +    virtual ~SkImage_Picture();
    1.19 +
    1.20 +    virtual void onDraw(SkCanvas*, SkScalar, SkScalar, const SkPaint*) SK_OVERRIDE;
    1.21 +    virtual void onDrawRectToRect(SkCanvas*, const SkRect*, const SkRect&, const SkPaint*) SK_OVERRIDE;
    1.22 +
    1.23 +    SkPicture* getPicture() { return fPicture; }
    1.24 +
    1.25 +private:
    1.26 +    SkPicture*  fPicture;
    1.27 +
    1.28 +    typedef SkImage_Base INHERITED;
    1.29 +};
    1.30 +
    1.31 +///////////////////////////////////////////////////////////////////////////////
    1.32 +
    1.33 +SkImage_Picture::SkImage_Picture(SkPicture* pict) : INHERITED(pict->width(), pict->height()) {
    1.34 +    pict->endRecording();
    1.35 +    pict->ref();
    1.36 +    fPicture = pict;
    1.37 +}
    1.38 +
    1.39 +SkImage_Picture::~SkImage_Picture() {
    1.40 +    fPicture->unref();
    1.41 +}
    1.42 +
    1.43 +void SkImage_Picture::onDraw(SkCanvas* canvas, SkScalar x, SkScalar y,
    1.44 +                             const SkPaint* paint) {
    1.45 +    SkImagePrivDrawPicture(canvas, fPicture, x, y, paint);
    1.46 +}
    1.47 +
    1.48 +void SkImage_Picture::onDrawRectToRect(SkCanvas* canvas, const SkRect* src, const SkRect& dst,
    1.49 +                             const SkPaint* paint) {
    1.50 +    SkImagePrivDrawPicture(canvas, fPicture, src, dst, paint);
    1.51 +}
    1.52 +
    1.53 +SkImage* SkNewImageFromPicture(const SkPicture* srcPicture) {
    1.54 +    /**
    1.55 +     *  We want to snapshot the playback status of the picture, w/o affecting
    1.56 +     *  its ability to continue recording (if needed).
    1.57 +     *
    1.58 +     *  Optimally this will shared as much data/buffers as it can with
    1.59 +     *  srcPicture, and srcPicture will perform a copy-on-write as needed if it
    1.60 +     *  needs to mutate them later on.
    1.61 +     */
    1.62 +    SkAutoTUnref<SkPicture> playback(SkNEW_ARGS(SkPicture, (*srcPicture)));
    1.63 +
    1.64 +    return SkNEW_ARGS(SkImage_Picture, (playback));
    1.65 +}
    1.66 +
    1.67 +SkPicture* SkPictureImageGetPicture(SkImage* pictureImage) {
    1.68 +    return static_cast<SkImage_Picture*>(pictureImage)->getPicture();
    1.69 +}

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