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      1 /*
      2  * Copyright 2012, The Android Open Source Project
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  *  * Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  *  * Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef PictureLayerContent_h
     27 #define PictureLayerContent_h
     28 
     29 #include "LayerContent.h"
     30 #include "SkStream.h"
     31 
     32 namespace WebCore {
     33 
     34 class PictureLayerContent : public LayerContent {
     35 public:
     36     PictureLayerContent(SkPicture* picture);
     37     PictureLayerContent(const PictureLayerContent& content);
     38     ~PictureLayerContent();
     39 
     40     virtual int width();
     41     virtual int height();
     42     virtual void setCheckForOptimisations(bool check) { m_checkedContent = !check; }
     43     virtual void checkForOptimisations();
     44     virtual float maxZoomScale();
     45     virtual void draw(SkCanvas* canvas);
     46     virtual void serialize(SkWStream* stream);
     47 
     48 private:
     49     SkPicture* m_picture;
     50     bool m_checkedContent;
     51     bool m_hasText;
     52 };
     53 
     54 class LegacyPictureLayerContent : public LayerContent {
     55 public:
     56     LegacyPictureLayerContent(SkMemoryStream* pictureStream);
     57     ~LegacyPictureLayerContent();
     58 
     59     virtual int width() { return m_width; }
     60     virtual int height() { return m_height; }
     61     virtual void setCheckForOptimisations(bool check) {}
     62     virtual void checkForOptimisations() {}
     63     virtual float maxZoomScale() { return 1e6; }
     64     virtual void draw(SkCanvas* canvas);
     65     virtual void serialize(SkWStream* stream) { }
     66 
     67 private:
     68     void* m_legacyLib;
     69     void* m_legacyPicture;
     70     int m_width;
     71     int m_height;
     72 
     73     typedef int  (*legacy_skia_create_picture_proc)(const void*, int, void**, int*, int*);
     74     typedef void (*legacy_skia_delete_picture_proc)(void*);
     75     typedef void (*legacy_skia_draw_picture_proc)(void*, void*, void*, int, int, int, int, void*);
     76 
     77     legacy_skia_create_picture_proc m_createPictureProc;
     78     legacy_skia_delete_picture_proc m_deletePictureProc;
     79     legacy_skia_draw_picture_proc m_drawPictureProc;
     80 };
     81 
     82 } // WebCore
     83 
     84 #endif // PictureLayerContent_h
     85