+++ /dev/null
-#include "Benchmark.h"
-#include "SkPMFloat.h"
-#include "SkRandom.h"
-
-struct PMFloatBench : public Benchmark {
- explicit PMFloatBench(bool clamp) : fClamp(clamp) {}
-
- const char* onGetName() SK_OVERRIDE { return fClamp ? "SkPMFloat_clamp" : "SkPMFloat_get"; }
- bool isSuitableFor(Backend backend) SK_OVERRIDE { return backend == kNonRendering_Backend; }
-
- void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE {
- SkRandom rand;
- for (int i = 0; i < loops; i++) {
- SkPMColor c = SkPreMultiplyColor(rand.nextU());
- SkPMFloat pmf;
- pmf.set(c);
- SkPMColor back = fClamp ? pmf.clamped() : pmf.get();
- if (c != back) { SkFAIL("no joy"); } // This conditional makes this not compile away.
- }
- }
-
- bool fClamp;
-};
-DEF_BENCH(return new PMFloatBench( true);)
-DEF_BENCH(return new PMFloatBench(false);)
'../bench/MipMapBench.cpp',
'../bench/MorphologyBench.cpp',
'../bench/MutexBench.cpp',
- '../bench/PMFloatBench.cpp',
'../bench/PatchBench.cpp',
'../bench/PatchGridBench.cpp',
'../bench/PathBench.cpp',
'../tests/PDFInvalidBitmapTest.cpp',
'../tests/PDFJpegEmbedTest.cpp',
'../tests/PDFPrimitivesTest.cpp',
- '../tests/PMFloatTest.cpp',
'../tests/PackBitsTest.cpp',
'../tests/PaintTest.cpp',
'../tests/ParsePathTest.cpp',
+++ /dev/null
-#ifndef SkPM_DEFINED
-#define SkPM_DEFINED
-
-#include "SkTypes.h"
-#include "SkColor.h"
-
-// As usual, there are two ways to increase alignment... the MSVC way and the everyone-else way.
-#ifdef _MSC_VER
- #define ALIGN(N) __declspec(align(N))
-#else
- #define ALIGN(N) __attribute__((aligned(N)))
-#endif
-
-// A pre-multiplied color in the same order as SkPMColor storing each component as a float.
-struct ALIGN(16) SkPMFloat {
- float fColor[4];
-
- float a() const { return fColor[SK_A32_SHIFT / 8]; }
- float r() const { return fColor[SK_R32_SHIFT / 8]; }
- float g() const { return fColor[SK_G32_SHIFT / 8]; }
- float b() const { return fColor[SK_B32_SHIFT / 8]; }
-
- void setA(float val) { fColor[SK_A32_SHIFT / 8] = val; }
- void setR(float val) { fColor[SK_R32_SHIFT / 8] = val; }
- void setG(float val) { fColor[SK_G32_SHIFT / 8] = val; }
- void setB(float val) { fColor[SK_B32_SHIFT / 8] = val; }
-
- void set(SkPMColor);
-
- SkPMColor get() const; // May SkASSERT(this->isValid()).
- SkPMColor clamped() const; // Will clamp all values to [0,1], then SkASSERT(this->isValid()).
-
- bool isValid() const {
- return this->a() >= 0 && this->a() <= 1
- && this->r() >= 0 && this->r() <= this->a()
- && this->g() >= 0 && this->g() <= this->a()
- && this->b() >= 0 && this->b() <= this->a();
- }
-};
-#undef ALIGN
-
-#if SK_CPU_SSE_LEVEL >= SK_CPU_SSE_LEVEL_SSE2
- #include "../opts/SkPMFloat_SSE2.h"
-#elif defined(__ARM_NEON__)
- #include "../opts/SkPMFloat_neon.h"
-#else
- #include "../opts/SkPMFloat_none.h"
-#endif
-
-#endif//SkPM_DEFINED
+++ /dev/null
-#include "SkColorPriv.h"
-#include "SkPMFloat.h"
-#include <emmintrin.h>
-
-// For set(), we widen our 8 bit components (fix8) to 8-bit components in 16 bits (fix8_16),
-// then widen those to 8-bit-in-32-bits (fix8_32), convert those to floats (scaled),
-// then finally scale those down from [0.0f, 255.0f] to [0.0f, 1.0f] into fColor.
-
-// get() and clamped() do the opposite, working from [0.0f, 1.0f] floats to [0.0f, 255.0f],
-// to 8-bit-in-32-bit, to 8-bit-in-16-bit, back down to 8-bit components.
-// _mm_packus_epi16() gives us clamping for free while narrowing.
-
-inline void SkPMFloat::set(SkPMColor c) {
- SkPMColorAssert(c);
- __m128i fix8 = _mm_set_epi32(0,0,0,c),
- fix8_16 = _mm_unpacklo_epi8 (fix8, _mm_setzero_si128()),
- fix8_32 = _mm_unpacklo_epi16(fix8_16, _mm_setzero_si128());
- __m128 scaled = _mm_cvtepi32_ps(fix8_32);
- _mm_store_ps(fColor, _mm_mul_ps(scaled, _mm_set1_ps(1.0f/255.0f)));
- SkASSERT(this->isValid());
-}
-
-inline SkPMColor SkPMFloat::get() const {
- SkASSERT(this->isValid());
- return this->clamped(); // At the moment, we don't know anything faster.
-}
-
-inline SkPMColor SkPMFloat::clamped() const {
- __m128 scaled = _mm_mul_ps(_mm_load_ps(fColor), _mm_set1_ps(255.0f));
- __m128i fix8_32 = _mm_cvtps_epi32(scaled),
- fix8_16 = _mm_packus_epi16(fix8_32, fix8_32),
- fix8 = _mm_packus_epi16(fix8_16, fix8_16);
- SkPMColor c = _mm_cvtsi128_si32(fix8);
- SkPMColorAssert(c);
- return c;
-}
+++ /dev/null
-#include "SkColorPriv.h"
-#include "SkPMFloat.h"
-#include <arm_neon.h>
-
-// For set(), we widen our 8 bit components (fix8) to 8-bit components in 16 bits (fix8_16),
-// then widen those to 8-bit-in-32-bits (fix8_32), convert those to floats (scaled),
-// then finally scale those down from [0.0f, 255.0f] to [0.0f, 1.0f] into fColor.
-
-// get() and clamped() do the opposite, working from [0.0f, 1.0f] floats to [0.0f, 255.0f],
-// to 8-bit-in-32-bit, to 8-bit-in-16-bit, back down to 8-bit components.
-// clamped() uses vqmovn to clamp while narrowing instead of just narrowing with vmovn.
-
-inline void SkPMFloat::set(SkPMColor c) {
- SkPMColorAssert(c);
- uint8x8_t fix8 = vdup_n_u32(c);
- uint16x8_t fix8_16 = vmovl_u8(fix8);
- uint32x4_t fix8_32 = vmovl_u16(vget_low_u16(fix8_16));
- float32x4_t scaled = vcvtq_f32_u32(fix8_32);
- vst1q_f32(fColor, vmulq_f32(scaled, vdupq_n_f32(1.0f/255.0f)));
- SkASSERT(this->isValid());
-}
-
-inline SkPMColor SkPMFloat::get() const {
- SkASSERT(this->isValid());
- float32x4_t scaled = vmulq_f32(vld1q_f32(fColor), vdupq_n_f32(255.0f));
- uint32x4_t fix8_32 = vcvtq_u32_f32(scaled);
- uint16x4_t fix8_16 = vmovn_u32(fix8_32);
- uint8x8_t fix8 = vmovn_u16(vcombine_u16(fix8_16, vdup_n_u16(0)));
- SkPMColor c = vget_lane_u32(fix8, 0);
- SkPMColorAssert(c);
- return c;
-}
-
-inline SkPMColor SkPMFloat::clamped() const {
- float32x4_t scaled = vmulq_f32(vld1q_f32(fColor), vdupq_n_f32(255.0f));
- uint32x4_t fix8_32 = vcvtq_u32_f32(scaled);
- uint16x4_t fix8_16 = vqmovn_u32(fix8_32);
- uint8x8_t fix8 = vqmovn_u16(vcombine_u16(fix8_16, vdup_n_u16(0)));
- SkPMColor c = vget_lane_u32(fix8, 0);
- SkPMColorAssert(c);
- return c;
-}
+++ /dev/null
-#include "SkColorPriv.h"
-#include "SkPMFloat.h"
-
-inline void SkPMFloat::set(SkPMColor c) {
- float scale = 1.0f / 255.0f;
- this->setA(SkGetPackedA32(c) * scale);
- this->setR(SkGetPackedR32(c) * scale);
- this->setG(SkGetPackedG32(c) * scale);
- this->setB(SkGetPackedB32(c) * scale);
- SkASSERT(this->isValid());
-}
-
-inline SkPMColor SkPMFloat::get() const {
- SkASSERT(this->isValid());
- return SkPackARGB32(this->a() * 255, this->r() * 255, this->g() * 255, this->b() * 255);
-}
-
-inline SkPMColor SkPMFloat::clamped() const {
- float a = this->a(),
- r = this->r(),
- g = this->g(),
- b = this->b();
- a = a < 0 ? 0 : (a > 1 ? 1 : a);
- r = r < 0 ? 0 : (r > 1 ? 1 : r);
- g = g < 0 ? 0 : (g > 1 ? 1 : g);
- b = b < 0 ? 0 : (b > 1 ? 1 : b);
- return SkPackARGB32(a * 255, r * 255, g * 255, b * 255);
-}
+++ /dev/null
-#include "SkPMFloat.h"
-#include "Test.h"
-
-DEF_TEST(SkPMFloat, r) {
- SkPMColor c = SkPreMultiplyColor(0xFFCC9933);
-
- SkPMFloat pmf;
- pmf.set(c);
- REPORTER_ASSERT(r, SkScalarNearlyEqual(1.0f, pmf.a()));
- REPORTER_ASSERT(r, SkScalarNearlyEqual(0.8f, pmf.r()));
- REPORTER_ASSERT(r, SkScalarNearlyEqual(0.6f, pmf.g()));
- REPORTER_ASSERT(r, SkScalarNearlyEqual(0.2f, pmf.b()));
-
- REPORTER_ASSERT(r, c == pmf.get());
-
- SkPMFloat unclamped;
- unclamped.setA(+2.0f);
- unclamped.setR(+0.2f);
- unclamped.setG(-0.2f);
- unclamped.setB(-5.0f);
-
- SkPMFloat clamped;
- clamped.set(unclamped.clamped());
-
- REPORTER_ASSERT(r, SkScalarNearlyEqual(1.0f, clamped.a()));
- REPORTER_ASSERT(r, SkScalarNearlyEqual(0.2f, clamped.r()));
- REPORTER_ASSERT(r, SkScalarNearlyEqual(0.0f, clamped.g()));
- REPORTER_ASSERT(r, SkScalarNearlyEqual(0.0f, clamped.b()));
-}
projects / platform / upstream / libSkiaSharp.git / commitdiff