The Tor Browser: gfx/skia/trunk/src/image/SkImage

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     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  */

     8 #ifndef SkImage_Base_DEFINED

     9 #define SkImage_Base_DEFINED

    11 #include "SkImage.h"

    13 class SkImage_Base : public SkImage {

    14 public:

    15     SkImage_Base(int width, int height) : INHERITED(width, height) {}

    17     virtual void onDraw(SkCanvas*, SkScalar x, SkScalar y, const SkPaint*) = 0;

    18     virtual void onDrawRectToRect(SkCanvas*, const SkRect* src,

    19                                   const SkRect& dst, const SkPaint*) = 0;

    21     // Default impl calls onDraw

    22     virtual bool onReadPixels(SkBitmap*, const SkIRect& subset) const;

    24     virtual const void* onPeekPixels(SkImageInfo*, size_t* /*rowBytes*/) const {

    25         return NULL;

    26     }

    28     virtual GrTexture* onGetTexture() { return NULL; }

    30     // return a read-only copy of the pixels. We promise to not modify them,

    31     // but only inspect them (or encode them).

    32     virtual bool getROPixels(SkBitmap*) const { return false; }

    34 private:

    35     typedef SkImage INHERITED;

    36 };

    38 #endif

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