e25c114f94
Change-Id: I63ce1643364c6d2dd50e3622d66c64bdb3091418 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/550704 Reviewed-by: John Stiles <johnstiles@google.com> Commit-Queue: Herb Derby <herb@google.com>
92 lines
2.9 KiB
C++
92 lines
2.9 KiB
C++
/*
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* Copyright 2015 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 "bench/Benchmark.h"
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#include "include/core/SkColor.h"
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#include "include/private/SkVx.h"
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// Writing into this array prevents the loops from being compiled away.
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static volatile float blackhole[4];
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template <typename T>
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struct Sk4fRoundtripBench : public Benchmark {
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Sk4fRoundtripBench() {}
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const char* onGetName() override {
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switch (sizeof(T)) {
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case 1: return "Sk4f_roundtrip_u8";
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case 2: return "Sk4f_roundtrip_u16";
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case 4: return "Sk4f_roundtrip_int";
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}
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SkASSERT(false);
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return "";
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}
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bool isSuitableFor(Backend backend) override { return backend == kNonRendering_Backend; }
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void onDraw(int loops, SkCanvas* canvas) override {
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skvx::float4 fs(1,2,3,4);
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while (loops --> 0) {
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fs = skvx::cast<float>(skvx::cast<T>(fs));
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}
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fs.store((float*)blackhole);
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}
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};
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DEF_BENCH(return new Sk4fRoundtripBench<uint8_t>;)
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DEF_BENCH(return new Sk4fRoundtripBench<uint16_t>;)
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DEF_BENCH(return new Sk4fRoundtripBench<int>;)
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struct Sk4fFloorBench : public Benchmark {
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Sk4fFloorBench() {}
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const char* onGetName() override { return "Sk4f_floor"; }
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bool isSuitableFor(Backend backend) override { return backend == kNonRendering_Backend; }
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void onDraw(int loops, SkCanvas* canvas) override {
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skvx::float4 fs(1,2,3,4);
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while (loops --> 0) {
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fs = floor(fs);
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}
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fs.store((float*)blackhole);
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}
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};
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DEF_BENCH(return new Sk4fFloorBench;)
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struct Sk4fGradientBench : public Benchmark {
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const char* onGetName() override { return "Sk4f_gradient"; }
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bool isSuitableFor(Backend backend) override { return backend == kNonRendering_Backend; }
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SkPMColor fDevice[100];
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void onDraw(int loops, SkCanvas*) override {
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skvx::float4 c0(0,0,255,255),
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c1(255,0,0,255),
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dc = c1 - c0,
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fx(0.1f),
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dx(0.002f),
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dcdx(dc*dx),
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dcdx4(dcdx+dcdx+dcdx+dcdx);
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for (int n = 0; n < loops; n++) {
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auto a = c0 + dc*fx + 0.5f, // add an extra 0.5f to get rounding for free.
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b = a + dcdx,
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c = b + dcdx,
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d = c + dcdx;
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for (size_t i = 0; i < std::size(fDevice); i += 4) {
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skvx::cast<uint8_t>(a).store(fDevice + i + 0);
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skvx::cast<uint8_t>(b).store(fDevice + i + 1);
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skvx::cast<uint8_t>(c).store(fDevice + i + 2);
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skvx::cast<uint8_t>(d).store(fDevice + i + 3);
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a = a + dcdx4;
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b = b + dcdx4;
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c = c + dcdx4;
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d = d + dcdx4;
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}
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}
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}
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};
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DEF_BENCH(return new Sk4fGradientBench;)
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