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      1 /*
      2 * Copyright 2017 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 
      8 #include "Benchmark.h"
      9 #include "SkBitmap.h"
     10 #include "SkCanvas.h"
     11 #include "SkColorSpaceXformCanvas.h"
     12 #include "SkString.h"
     13 
     14 class ColorCanvasDrawBitmap : public Benchmark {
     15 public:
     16     ColorCanvasDrawBitmap(sk_sp<SkColorSpace> src, sk_sp<SkColorSpace> dst, const char* name)
     17         : fDst(dst)
     18         , fName(SkStringPrintf("ColorCanvasDrawBitmap_%s", name))
     19     {
     20         fBitmap.allocPixels(SkImageInfo::MakeN32(100, 100, kOpaque_SkAlphaType, src));
     21         fBitmap.eraseColor(SK_ColorBLUE);
     22     }
     23 
     24     const char* onGetName() override {
     25         return fName.c_str();
     26     }
     27 
     28     SkIPoint onGetSize() override {
     29         return SkIPoint::Make(100, 100);
     30     }
     31 
     32     bool isSuitableFor(Backend backend) override {
     33         return kRaster_Backend == backend || kGPU_Backend == backend;
     34     }
     35 
     36     void onDraw(int n, SkCanvas* canvas) override {
     37         // This simulates an Android app that draws bitmaps to a software canvas.
     38         // Chrome and the Android framework both use SkImages exclusively.
     39         std::unique_ptr<SkCanvas> colorCanvas = SkCreateColorSpaceXformCanvas(canvas, fDst);
     40         for (int i = 0; i < n; i++) {
     41             colorCanvas->drawBitmap(fBitmap, 0, 0, nullptr);
     42         }
     43     }
     44 
     45 private:
     46     sk_sp<SkColorSpace> fDst;
     47     SkString            fName;
     48     SkBitmap            fBitmap;
     49 
     50     typedef Benchmark INHERITED;
     51 };
     52 
     53 DEF_BENCH(return new ColorCanvasDrawBitmap(nullptr, SkColorSpace::MakeSRGB(), "null_to_sRGB");)
     54 DEF_BENCH(return new ColorCanvasDrawBitmap(SkColorSpace::MakeSRGB(), SkColorSpace::MakeSRGB(),
     55         "sRGB_to_sRGB");)
     56 DEF_BENCH(return new ColorCanvasDrawBitmap(
     57         SkColorSpace::MakeRGB(SkColorSpace::kSRGB_RenderTargetGamma, SkColorSpace::kAdobeRGB_Gamut),
     58         SkColorSpace::MakeSRGB(), "AdobeRGB_to_sRGB");)
     59