blob: 74a3c20fd0acff3646f146e2e356e6dc962a6864 [file] [log] [blame]
/*
* Copyright 2015 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/SkColor.h"
#include "src/base/SkVx.h"
// Writing into this array prevents the loops from being compiled away.
static volatile float blackhole[4];
template <typename T>
struct Sk4fRoundtripBench : public Benchmark {
Sk4fRoundtripBench() {}
const char* onGetName() override {
switch (sizeof(T)) {
case 1: return "Sk4f_roundtrip_u8";
case 2: return "Sk4f_roundtrip_u16";
case 4: return "Sk4f_roundtrip_int";
}
SkASSERT(false);
return "";
}
bool isSuitableFor(Backend backend) override { return backend == kNonRendering_Backend; }
void onDraw(int loops, SkCanvas* canvas) override {
skvx::float4 fs(1,2,3,4);
while (loops --> 0) {
fs = skvx::cast<float>(skvx::cast<T>(fs));
}
fs.store((float*)blackhole);
}
};
DEF_BENCH(return new Sk4fRoundtripBench<uint8_t>;)
DEF_BENCH(return new Sk4fRoundtripBench<uint16_t>;)
DEF_BENCH(return new Sk4fRoundtripBench<int>;)
struct Sk4fFloorBench : public Benchmark {
Sk4fFloorBench() {}
const char* onGetName() override { return "Sk4f_floor"; }
bool isSuitableFor(Backend backend) override { return backend == kNonRendering_Backend; }
void onDraw(int loops, SkCanvas* canvas) override {
skvx::float4 fs(1,2,3,4);
while (loops --> 0) {
fs = floor(fs);
}
fs.store((float*)blackhole);
}
};
DEF_BENCH(return new Sk4fFloorBench;)
struct Sk4fGradientBench : public Benchmark {
const char* onGetName() override { return "Sk4f_gradient"; }
bool isSuitableFor(Backend backend) override { return backend == kNonRendering_Backend; }
SkPMColor fDevice[100];
void onDraw(int loops, SkCanvas*) override {
skvx::float4 c0(0,0,255,255),
c1(255,0,0,255),
dc = c1 - c0,
fx(0.1f),
dx(0.002f),
dcdx(dc*dx),
dcdx4(dcdx+dcdx+dcdx+dcdx);
for (int n = 0; n < loops; n++) {
auto a = c0 + dc*fx + 0.5f, // add an extra 0.5f to get rounding for free.
b = a + dcdx,
c = b + dcdx,
d = c + dcdx;
for (size_t i = 0; i < std::size(fDevice); i += 4) {
skvx::cast<uint8_t>(a).store(fDevice + i + 0);
skvx::cast<uint8_t>(b).store(fDevice + i + 1);
skvx::cast<uint8_t>(c).store(fDevice + i + 2);
skvx::cast<uint8_t>(d).store(fDevice + i + 3);
a = a + dcdx4;
b = b + dcdx4;
c = c + dcdx4;
d = d + dcdx4;
}
}
}
};
DEF_BENCH(return new Sk4fGradientBench;)