diff options
| -rw-r--r-- | bench/SwizzleBench.cpp | 32 | ||||
| -rw-r--r-- | tests/SwizzlerTest.cpp | 33 |
2 files changed, 65 insertions, 0 deletions
diff --git a/bench/SwizzleBench.cpp b/bench/SwizzleBench.cpp new file mode 100644 index 0000000000..13b2003f9a --- /dev/null +++ b/bench/SwizzleBench.cpp @@ -0,0 +1,32 @@ +/* + * Copyright 2016 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 "SkOpts.h" + +class SwizzleBench : public Benchmark { +public: + SwizzleBench(const char* name, SkOpts::Swizzle_8888_8888 fn) : fName(name), fFn(fn) {} + + bool isSuitableFor(Backend backend) override { return backend == kNonRendering_Backend; } + const char* onGetName() override { return fName; } + void onDraw(int loops, SkCanvas*) override { + static const int K = 1023; // Arbitrary, but nice to be a non-power-of-two to trip up SIMD. + uint32_t dst[K], src[K]; + while (loops --> 0) { + fFn(dst, src, K); + } + } +private: + const char* fName; + SkOpts::Swizzle_8888_8888 fFn; +}; + + +DEF_BENCH(return new SwizzleBench("SkOpts::premul_xxxa", SkOpts::premul_xxxa)); +DEF_BENCH(return new SwizzleBench("SkOpts::swaprb_xxxa", SkOpts::swaprb_xxxa)); +DEF_BENCH(return new SwizzleBench("SkOpts::premul_swaprb_xxxa", SkOpts::premul_swaprb_xxxa)); diff --git a/tests/SwizzlerTest.cpp b/tests/SwizzlerTest.cpp index 95aaf38639..f67cfeef7a 100644 --- a/tests/SwizzlerTest.cpp +++ b/tests/SwizzlerTest.cpp @@ -7,6 +7,7 @@ #include "SkSwizzler.h" #include "Test.h" +#include "SkOpts.h" // These are the values that we will look for to indicate that the fill was successful static const uint8_t kFillIndex = 0x11; @@ -124,3 +125,35 @@ DEF_TEST(SwizzlerFill, r) { } } } + +DEF_TEST(SwizzleOpts, r) { + uint32_t dst, src; + + // forall c, c*255 == c, c*0 == 0 + for (int c = 0; c <= 255; c++) { + src = (255<<24) | c; + SkOpts::premul_xxxa(&dst, &src, 1); + REPORTER_ASSERT(r, dst == src); + SkOpts::premul_swaprb_xxxa(&dst, &src, 1); + REPORTER_ASSERT(r, dst == (uint32_t)((255<<24) | (c<<16))); + + src = (0<<24) | c; + SkOpts::premul_xxxa(&dst, &src, 1); + REPORTER_ASSERT(r, dst == 0); + SkOpts::premul_swaprb_xxxa(&dst, &src, 1); + REPORTER_ASSERT(r, dst == 0); + } + + // check a totally arbitrary color + src = 0xFACEB004; + SkOpts::premul_xxxa(&dst, &src, 1); + REPORTER_ASSERT(r, dst == 0xFACAAD04); + + // swap red and blue + SkOpts::swaprb_xxxa(&dst, &src, 1); + REPORTER_ASSERT(r, dst == 0xFA04B0CE); + + // all together now + SkOpts::premul_swaprb_xxxa(&dst, &src, 1); + REPORTER_ASSERT(r, dst == 0xFA04ADCA); +} |