skia2/bench/PerlinNoiseBench.cpp
Mike Klein c0bd9f9fe5 rewrite includes to not need so much -Ifoo
Current strategy: everything from the top

Things to look at first are the manual changes:

   - added tools/rewrite_includes.py
   - removed -Idirectives from BUILD.gn
   - various compile.sh simplifications
   - tweak tools/embed_resources.py
   - update gn/find_headers.py to write paths from the top
   - update gn/gn_to_bp.py SkUserConfig.h layout
     so that #include "include/config/SkUserConfig.h" always
     gets the header we want.

No-Presubmit: true
Change-Id: I73a4b181654e0e38d229bc456c0d0854bae3363e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/209706
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Hal Canary <halcanary@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
2019-04-24 16:27:11 +00:00

59 lines
1.9 KiB
C++

/*
* Copyright 2013 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "bench/Benchmark.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkShader.h"
#include "include/effects/SkPerlinNoiseShader.h"
class PerlinNoiseBench : public Benchmark {
SkISize fSize;
public:
PerlinNoiseBench() {
fSize = SkISize::Make(80, 80);
}
protected:
const char* onGetName() override {
return "perlinnoise";
}
void onDraw(int loops, SkCanvas* canvas) override {
this->test(loops, canvas, 0, 0, 0.1f, 0.1f, 3, 0, false);
}
private:
void drawClippedRect(SkCanvas* canvas, int x, int y, const SkPaint& paint) {
canvas->save();
canvas->clipRect(SkRect::MakeXYWH(SkIntToScalar(x), SkIntToScalar(y),
SkIntToScalar(fSize.width()), SkIntToScalar(fSize.height())));
SkRect r = SkRect::MakeXYWH(SkIntToScalar(x), SkIntToScalar(y),
SkIntToScalar(fSize.width()),
SkIntToScalar(fSize.height()));
canvas->drawRect(r, paint);
canvas->restore();
}
void test(int loops, SkCanvas* canvas, int x, int y,
float baseFrequencyX, float baseFrequencyY, int numOctaves, float seed,
bool stitchTiles) {
SkPaint paint;
paint.setShader(SkPerlinNoiseShader::MakeFractalNoise(baseFrequencyX, baseFrequencyY,
numOctaves, seed,
stitchTiles ? &fSize : nullptr));
for (int i = 0; i < loops; i++) {
this->drawClippedRect(canvas, x, y, paint);
}
}
typedef Benchmark INHERITED;
};
///////////////////////////////////////////////////////////////////////////////
DEF_BENCH( return new PerlinNoiseBench(); )