54d500f90c
BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2143653002 Review-Url: https://codereview.chromium.org/2143653002
125 lines
4.3 KiB
C++
125 lines
4.3 KiB
C++
/*
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* Copyright 2016 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "Benchmark.h"
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#include "SkCanvas.h"
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#include "SkShader.h"
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#include "SkGradientShader.h"
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#include "SkString.h"
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#include "SkColor.h"
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#include "SkPaint.h"
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static const char* get_tilemode_name(SkShader::TileMode tilemode) {
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switch (tilemode) {
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case SkShader::kClamp_TileMode:
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return "clamp";
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case SkShader::kRepeat_TileMode:
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return "repeat";
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case SkShader::kMirror_TileMode:
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return "mirror";
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default:
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SkDEBUGFAIL("Unknown tilemode");
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return "error";
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}
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}
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class HardStopGradientBench : public Benchmark {
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public:
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HardStopGradientBench(SkShader::TileMode tilemode, int count) {
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fName.printf("hardstop_%s_%03d_colors", get_tilemode_name(tilemode), count);
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fTileMode = tilemode;
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fColorCount = count;
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}
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const char* onGetName() override {
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return fName.c_str();
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}
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SkIPoint onGetSize() override {
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return SkIPoint::Make(kSize, kSize);
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}
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void onPreDraw(SkCanvas* canvas) override {
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// Left to right
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SkPoint points[2] = {
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SkPoint::Make(0, kSize/2),
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SkPoint::Make(kSize-1, kSize/2),
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};
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// "Evenly spaced" colors
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SkColor colors[100];
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for (int i = 0; i < fColorCount; i++) {
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colors[i] = i * (0xffffffff / fColorCount);
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}
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// Create a hard stop
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SkScalar positions[100];
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positions[0] = 0.0f;
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positions[1] = 0.0f;
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for (int i = 2; i < fColorCount; i++) {
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// Evenly spaced afterwards
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positions[i] = i / (fColorCount - 1.0f);
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}
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fPaint.setShader(SkGradientShader::MakeLinear(points,
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colors,
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positions,
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fColorCount,
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fTileMode,
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0,
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nullptr));
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}
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/*
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* Draw simple linear gradient from left to right
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*/
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void onDraw(int loops, SkCanvas* canvas) override {
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for (int i = 0; i < loops; i++) {
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canvas->drawPaint(fPaint);
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}
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}
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private:
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static const int kSize = 500;
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SkShader::TileMode fTileMode;
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SkString fName;
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int fColorCount;
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SkPaint fPaint;
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typedef Benchmark INHERITED;
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};
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// Clamp
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DEF_BENCH(return new HardStopGradientBench(SkShader::kClamp_TileMode, 3);)
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DEF_BENCH(return new HardStopGradientBench(SkShader::kClamp_TileMode, 4);)
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DEF_BENCH(return new HardStopGradientBench(SkShader::kClamp_TileMode, 5);)
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DEF_BENCH(return new HardStopGradientBench(SkShader::kClamp_TileMode, 10);)
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DEF_BENCH(return new HardStopGradientBench(SkShader::kClamp_TileMode, 25);)
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DEF_BENCH(return new HardStopGradientBench(SkShader::kClamp_TileMode, 50);)
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DEF_BENCH(return new HardStopGradientBench(SkShader::kClamp_TileMode, 100);)
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// Repeat
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DEF_BENCH(return new HardStopGradientBench(SkShader::kRepeat_TileMode, 3);)
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DEF_BENCH(return new HardStopGradientBench(SkShader::kRepeat_TileMode, 4);)
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DEF_BENCH(return new HardStopGradientBench(SkShader::kRepeat_TileMode, 5);)
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DEF_BENCH(return new HardStopGradientBench(SkShader::kRepeat_TileMode, 10);)
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DEF_BENCH(return new HardStopGradientBench(SkShader::kRepeat_TileMode, 25);)
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DEF_BENCH(return new HardStopGradientBench(SkShader::kRepeat_TileMode, 50);)
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DEF_BENCH(return new HardStopGradientBench(SkShader::kRepeat_TileMode, 100);)
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// Mirror
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DEF_BENCH(return new HardStopGradientBench(SkShader::kMirror_TileMode, 3);)
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DEF_BENCH(return new HardStopGradientBench(SkShader::kMirror_TileMode, 4);)
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DEF_BENCH(return new HardStopGradientBench(SkShader::kMirror_TileMode, 5);)
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DEF_BENCH(return new HardStopGradientBench(SkShader::kMirror_TileMode, 10);)
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DEF_BENCH(return new HardStopGradientBench(SkShader::kMirror_TileMode, 25);)
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DEF_BENCH(return new HardStopGradientBench(SkShader::kMirror_TileMode, 50);)
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DEF_BENCH(return new HardStopGradientBench(SkShader::kMirror_TileMode, 100);)
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