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      1 /*
      2  * Copyright 2013 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  */
      7 #include "SkBenchmark.h"
      8 #include "SkBitmapSource.h"
      9 #include "SkCanvas.h"
     10 #include "SkDevice.h"
     11 #include "SkMergeImageFilter.h"
     12 
     13 #define FILTER_WIDTH_SMALL  SkIntToScalar(32)
     14 #define FILTER_HEIGHT_SMALL SkIntToScalar(32)
     15 #define FILTER_WIDTH_LARGE  SkIntToScalar(256)
     16 #define FILTER_HEIGHT_LARGE SkIntToScalar(256)
     17 
     18 class MergeBench : public SkBenchmark {
     19 public:
     20     MergeBench(void* param, bool small) : INHERITED(param), fIsSmall(small), fInitialized(false) {
     21     }
     22 
     23 protected:
     24     virtual const char* onGetName() SK_OVERRIDE {
     25         return fIsSmall ? "merge_small" : "merge_large";
     26     }
     27 
     28     virtual void onPreDraw() SK_OVERRIDE {
     29         if (!fInitialized) {
     30             make_bitmap();
     31             make_checkerboard();
     32             fInitialized = true;
     33         }
     34     }
     35 
     36     virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
     37         SkRect r = fIsSmall ? SkRect::MakeWH(FILTER_WIDTH_SMALL, FILTER_HEIGHT_SMALL) :
     38                               SkRect::MakeWH(FILTER_WIDTH_LARGE, FILTER_HEIGHT_LARGE);
     39         SkPaint paint;
     40         paint.setImageFilter(mergeBitmaps())->unref();
     41         canvas->drawRect(r, paint);
     42     }
     43 
     44 private:
     45     SkImageFilter* mergeBitmaps() {
     46         SkImageFilter* first = new SkBitmapSource(fCheckerboard);
     47         SkImageFilter* second = new SkBitmapSource(fBitmap);
     48         SkAutoUnref aur0(first);
     49         SkAutoUnref aur1(second);
     50         return new SkMergeImageFilter(first, second);
     51     }
     52 
     53     void make_bitmap() {
     54         fBitmap.setConfig(SkBitmap::kARGB_8888_Config, 80, 80);
     55         fBitmap.allocPixels();
     56         SkDevice device(fBitmap);
     57         SkCanvas canvas(&device);
     58         canvas.clear(0x00000000);
     59         SkPaint paint;
     60         paint.setAntiAlias(true);
     61         paint.setColor(0xFF884422);
     62         paint.setTextSize(SkIntToScalar(96));
     63         const char* str = "g";
     64         canvas.drawText(str, strlen(str), SkIntToScalar(15), SkIntToScalar(55), paint);
     65     }
     66 
     67     void make_checkerboard() {
     68         fCheckerboard.setConfig(SkBitmap::kARGB_8888_Config, 80, 80);
     69         fCheckerboard.allocPixels();
     70         SkDevice device(fCheckerboard);
     71         SkCanvas canvas(&device);
     72         canvas.clear(0x00000000);
     73         SkPaint darkPaint;
     74         darkPaint.setColor(0xFF804020);
     75         SkPaint lightPaint;
     76         lightPaint.setColor(0xFF244484);
     77         for (int y = 0; y < 80; y += 16) {
     78             for (int x = 0; x < 80; x += 16) {
     79                 canvas.save();
     80                 canvas.translate(SkIntToScalar(x), SkIntToScalar(y));
     81                 canvas.drawRect(SkRect::MakeXYWH(0, 0, 8, 8), darkPaint);
     82                 canvas.drawRect(SkRect::MakeXYWH(8, 0, 8, 8), lightPaint);
     83                 canvas.drawRect(SkRect::MakeXYWH(0, 8, 8, 8), lightPaint);
     84                 canvas.drawRect(SkRect::MakeXYWH(8, 8, 8, 8), darkPaint);
     85                 canvas.restore();
     86             }
     87         }
     88     }
     89 
     90     bool fIsSmall;
     91     bool fInitialized;
     92     SkBitmap fBitmap, fCheckerboard;
     93 
     94     typedef SkBenchmark INHERITED;
     95 };
     96 
     97 ///////////////////////////////////////////////////////////////////////////////
     98 
     99 DEF_BENCH( return new MergeBench(p, true); )
    100 DEF_BENCH( return new MergeBench(p, false); )
    101