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      1 /*
      2  * Copyright 2008, 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 PICTURESET_H
     27 #define PICTURESET_H
     28 
     29 #define PICTURE_SET_DUMP 0
     30 #define PICTURE_SET_DEBUG 0
     31 #define PICTURE_SET_VALIDATE 0
     32 
     33 #if PICTURE_SET_DEBUG
     34 #define DBG_SET_LOG(message) LOGD("%s %s", __FUNCTION__, message)
     35 #define DBG_SET_LOGD(format, ...) LOGD("%s " format, __FUNCTION__, __VA_ARGS__)
     36 #define DEBUG_SET_UI_LOGD(...) LOGD(__VA_ARGS__)
     37 #else
     38 #define DBG_SET_LOG(message) ((void)0)
     39 #define DBG_SET_LOGD(format, ...) ((void)0)
     40 #define DEBUG_SET_UI_LOGD(...) ((void)0)
     41 #endif
     42 
     43 #include "jni.h"
     44 #include "SkRegion.h"
     45 #include <wtf/Vector.h>
     46 
     47 class SkCanvas;
     48 class SkPicture;
     49 class SkIRect;
     50 
     51 namespace android {
     52 
     53     class PictureSet {
     54     public:
     55         PictureSet();
     56         PictureSet(const PictureSet& src) { set(src); }
     57         virtual ~PictureSet();
     58         void add(const SkRegion& area, SkPicture* picture,
     59             uint32_t elapsed, bool split)
     60         {
     61             add(area, picture, elapsed, split, emptyPicture(picture));
     62         }
     63         void add(const SkRegion& area, SkPicture* picture,
     64             uint32_t elapsed, bool split, bool empty);
     65         const SkIRect& bounds(size_t i) const {
     66             return mPictures[i].mArea.getBounds(); }
     67         bool build();
     68         // Update mWidth/mHeight, and adds any additional inval region
     69         void checkDimensions(int width, int height, SkRegion* inval);
     70         void clear();
     71         bool draw(SkCanvas* );
     72         static PictureSet* GetNativePictureSet(JNIEnv* env, jobject jpic);
     73         int height() const { return mHeight; }
     74         bool isEmpty() const; // returns true if empty or only trivial content
     75         bool reuseSubdivided(const SkRegion& );
     76         void set(const PictureSet& );
     77         void setDrawTimes(const PictureSet& );
     78         void setPicture(size_t i, SkPicture* p);
     79         size_t size() const { return mPictures.size(); }
     80         void split(PictureSet* result) const;
     81         bool upToDate(size_t i) const { return mPictures[i].mPicture != NULL; }
     82         int width() const { return mWidth; }
     83         void dump(const char* label) const;
     84         bool validate(const char* label) const;
     85     private:
     86         bool emptyPicture(SkPicture* ) const; // true if no text, images, paths
     87         struct Pictures {
     88             SkRegion mArea;
     89             SkPicture* mPicture;
     90             SkIRect mUnsplit;
     91             uint32_t mElapsed;
     92             bool mSplit : 8;
     93             bool mWroteElapsed : 8;
     94             bool mBase : 8; // true if nothing is drawn underneath this
     95             bool mEmpty : 8; // true if the picture only draws white
     96         };
     97         void add(const Pictures* temp);
     98         WTF::Vector<Pictures> mPictures;
     99         int mHeight;
    100         int mWidth;
    101     };
    102 }
    103 
    104 #endif
    105