skia2/bench/Sk4fBench.cpp
mtklein c023210893 Revert of Sk4f: add floor() (patchset #3 id:40001 of https://codereview.chromium.org/1685773002/ )
Reason for revert:
build break must be this, right?

Original issue's description:
> Sk4f: add floor()
>
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1685773002
> CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot
>
> Committed: https://skia.googlesource.com/skia/+/86c6c4935171a1d2d6a9ffbff37ec6dac1326614

TBR=herb@google.com,mtklein@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review URL: https://codereview.chromium.org/1679343004
2016-02-09 15:10:56 -08:00

73 lines
2.2 KiB
C++

/*
* 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 "Benchmark.h"
#include "SkColor.h"
#include "SkNx.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 {
Sk4f fs(1,2,3,4);
while (loops --> 0) {
fs = SkNx_cast<float>(SkNx_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 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 {
Sk4f 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++) {
Sk4f a = c0 + dc*fx + Sk4f(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 < SK_ARRAY_COUNT(fDevice); i += 4) {
Sk4f_ToBytes((uint8_t*)(fDevice+i), a, b, c, d);
a = a + dcdx4;
b = b + dcdx4;
c = c + dcdx4;
d = d + dcdx4;
}
}
}
};
DEF_BENCH(return new Sk4fGradientBench;)