skia2/bench/ColorCanvasDrawBitmapBench.cpp
Matt Sarett e684483408 Avoid extra bitmap copies in SkColorSpaceXformCanvas
Before:
ColorCanvasDrawBitmap_sRGB_to_sRGB     5.09us
ColorCanvasDrawBitmap_AdobeRGB_to_sRGB 50.7us

After:
ColorCanvasDrawBitmap_sRGB_to_sRGB     2.43us
ColorCanvasDrawBitmap_AdobeRGB_to_sRGB 37.1us

BUG=skia:6456
Change-Id: Ie382936c36fd347b59485882cf8f27f315a5d35f

Change-Id: Ie382936c36fd347b59485882cf8f27f315a5d35f
Reviewed-on: https://skia-review.googlesource.com/11040
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Matt Sarett <msarett@google.com>
2017-04-03 15:35:55 +00:00

58 lines
1.8 KiB
C++

/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "Benchmark.h"
#include "SkCanvas.h"
#include "SkColorSpaceXformCanvas.h"
#include "SkString.h"
class ColorCanvasDrawBitmap : public Benchmark {
public:
ColorCanvasDrawBitmap(sk_sp<SkColorSpace> src, sk_sp<SkColorSpace> dst, const char* name)
: fDst(dst)
, fName(SkStringPrintf("ColorCanvasDrawBitmap_%s", name))
{
fBitmap.allocPixels(SkImageInfo::MakeN32(100, 100, kOpaque_SkAlphaType, src));
fBitmap.eraseColor(SK_ColorBLUE);
}
const char* onGetName() override {
return fName.c_str();
}
SkIPoint onGetSize() override {
return SkIPoint::Make(100, 100);
}
bool isSuitableFor(Backend backend) override {
return kRaster_Backend == backend || kGPU_Backend == backend;
}
void onDraw(int n, SkCanvas* canvas) override {
// This simulates an Android app that draws bitmaps to a software canvas.
// Chrome and the Android framework both use SkImages exclusively.
std::unique_ptr<SkCanvas> colorCanvas = SkCreateColorSpaceXformCanvas(canvas, fDst);
for (int i = 0; i < n; i++) {
colorCanvas->drawBitmap(fBitmap, 0, 0, nullptr);
}
}
private:
sk_sp<SkColorSpace> fDst;
SkString fName;
SkBitmap fBitmap;
typedef Benchmark INHERITED;
};
DEF_BENCH(return new ColorCanvasDrawBitmap(nullptr, SkColorSpace::MakeSRGB(), "null_to_sRGB");)
DEF_BENCH(return new ColorCanvasDrawBitmap(SkColorSpace::MakeSRGB(), SkColorSpace::MakeSRGB(),
"sRGB_to_sRGB");)
DEF_BENCH(return new ColorCanvasDrawBitmap(
SkColorSpace::MakeRGB(SkColorSpace::kSRGB_RenderTargetGamma, SkColorSpace::kAdobeRGB_Gamut),
SkColorSpace::MakeSRGB(), "AdobeRGB_to_sRGB");)