diff options
Diffstat (limited to 'src/core')
-rw-r--r-- | src/core/SkHalf.h | 22 | ||||
-rw-r--r-- | src/core/SkMipMap.cpp | 4 | ||||
-rw-r--r-- | src/core/SkNx.h | 9 | ||||
-rw-r--r-- | src/core/SkXfermodeF16.cpp | 26 |
4 files changed, 36 insertions, 25 deletions
diff --git a/src/core/SkHalf.h b/src/core/SkHalf.h index 2f2ed66c6a..adf8d3a126 100644 --- a/src/core/SkHalf.h +++ b/src/core/SkHalf.h @@ -16,9 +16,10 @@ // only used for storage typedef uint16_t SkHalf; -#define SK_HalfMin 0x0400 // 2^-24 (minimum positive normal value) -#define SK_HalfMax 0x7bff // 65504 -#define SK_HalfEpsilon 0x1400 // 2^-10 +static constexpr uint16_t SK_HalfMin = 0x0400; // 2^-24 (minimum positive normal value) +static constexpr uint16_t SK_HalfMax = 0x7bff; // 65504 +static constexpr uint16_t SK_HalfEpsilon = 0x1400; // 2^-10 +static constexpr uint16_t SK_Half1 = 0x3C00; // 1 // convert between half and single precision floating point float SkHalfToFloat(SkHalf h); @@ -26,8 +27,8 @@ SkHalf SkFloatToHalf(float f); // Convert between half and single precision floating point, // assuming inputs and outputs are both finite. -static inline Sk4f SkHalfToFloat_finite(uint64_t); -static inline uint64_t SkFloatToHalf_finite(const Sk4f&); +static inline Sk4f SkHalfToFloat_finite(uint64_t); +static inline Sk4h SkFloatToHalf_finite(const Sk4f&); // ~~~~~~~~~~~ impl ~~~~~~~~~~~~~~ // @@ -65,14 +66,12 @@ static inline Sk4f SkHalfToFloat_finite(uint64_t hs) { #endif } -static inline uint64_t SkFloatToHalf_finite(const Sk4f& fs) { - uint64_t r; +static inline Sk4h SkFloatToHalf_finite(const Sk4f& fs) { #if !defined(SKNX_NO_SIMD) && defined(SK_CPU_ARM64) float32x4_t vec = fs.fVec; asm ("fcvtn %[vec].4h, %[vec].4s \n" // vcvt_f16_f32(vec) - "fmov %[r], %d[vec] \n" // vst1_f16(&r, ...) - : [r] "=r" (r) // =r: write-only 64-bit general register - , [vec] "+w" (vec)); // +w: read-write NEON register + : [vec] "+w" (vec)); // +w: read-write NEON register + return vreinterpret_u16_f32(vget_low_f32(vec)); #else Sk4i bits = Sk4i::Load(&fs), sign = bits & 0x80000000, // Save the sign bit for later... @@ -91,9 +90,8 @@ static inline uint64_t SkFloatToHalf_finite(const Sk4f& fs) { Sk4i denorm = Sk4i::Load(&plus_K) ^ K; Sk4i merged = (sign >> 16) | will_be_denorm.thenElse(denorm, norm); - SkNx_cast<uint16_t>(merged).store(&r); + return SkNx_cast<uint16_t>(merged); #endif - return r; } #endif diff --git a/src/core/SkMipMap.cpp b/src/core/SkMipMap.cpp index 4811c9e073..cb9cc85a98 100644 --- a/src/core/SkMipMap.cpp +++ b/src/core/SkMipMap.cpp @@ -88,7 +88,9 @@ struct ColorTypeFilter_F16 { return SkHalfToFloat_finite(x); } static uint64_t Compact(const Sk4f& x) { - return SkFloatToHalf_finite(x); + uint64_t r; + SkFloatToHalf_finite(x).store(&r); + return r; } }; diff --git a/src/core/SkNx.h b/src/core/SkNx.h index dec63f8d89..253fcf22fe 100644 --- a/src/core/SkNx.h +++ b/src/core/SkNx.h @@ -309,6 +309,15 @@ SI Sk4i Sk4f_round(const Sk4f& x) { (int) lrintf (x[3]), }; } +// Transpose 4 Sk4h and store (256 bits total). +SI void Sk4h_store4(void* dst, const Sk4h& r, const Sk4h& g, const Sk4h& b, const Sk4h& a) { + uint64_t* dst64 = (uint64_t*) dst; + Sk4h(r[0], g[0], b[0], a[0]).store(dst64 + 0); + Sk4h(r[1], g[1], b[1], a[1]).store(dst64 + 1); + Sk4h(r[2], g[2], b[2], a[2]).store(dst64 + 2); + Sk4h(r[3], g[3], b[3], a[3]).store(dst64 + 3); +} + #endif SI void Sk4f_ToBytes(uint8_t p[16], const Sk4f& a, const Sk4f& b, const Sk4f& c, const Sk4f& d) { diff --git a/src/core/SkXfermodeF16.cpp b/src/core/SkXfermodeF16.cpp index 63058f9dce..219e91188e 100644 --- a/src/core/SkXfermodeF16.cpp +++ b/src/core/SkXfermodeF16.cpp @@ -25,13 +25,13 @@ static void xfer_1(const SkXfermode* xfer, uint64_t dst[], const SkPM4f* src, in Sk4f d4 = SkHalfToFloat_finite(dst[i]); d4.store(d.fVec); Sk4f r4 = Sk4f::Load(proc(*src, d).fVec); - dst[i] = SkFloatToHalf_finite(lerp_by_coverage(r4, d4, aa[i])); + SkFloatToHalf_finite(lerp_by_coverage(r4, d4, aa[i])).store(&dst[i]); } } else { for (int i = 0; i < count; ++i) { SkHalfToFloat_finite(dst[i]).store(d.fVec); Sk4f r4 = Sk4f::Load(proc(*src, d).fVec); - dst[i] = SkFloatToHalf_finite(r4); + SkFloatToHalf_finite(r4).store(&dst[i]); } } } @@ -45,13 +45,13 @@ static void xfer_n(const SkXfermode* xfer, uint64_t dst[], const SkPM4f src[], i Sk4f d4 = SkHalfToFloat_finite(dst[i]); d4.store(d.fVec); Sk4f r4 = Sk4f::Load(proc(src[i], d).fVec); - dst[i] = SkFloatToHalf_finite(lerp_by_coverage(r4, d4, aa[i])); + SkFloatToHalf_finite(lerp_by_coverage(r4, d4, aa[i])).store(&dst[i]); } } else { for (int i = 0; i < count; ++i) { SkHalfToFloat_finite(dst[i]).store(d.fVec); Sk4f r4 = Sk4f::Load(proc(src[i], d).fVec); - dst[i] = SkFloatToHalf_finite(r4); + SkFloatToHalf_finite(r4).store(&dst[i]); } } } @@ -65,7 +65,7 @@ static void clear(const SkXfermode*, uint64_t dst[], const SkPM4f*, int count, c for (int i = 0; i < count; ++i) { if (aa[i]) { const Sk4f d4 = SkHalfToFloat_finite(dst[i]); - dst[i] = SkFloatToHalf_finite(d4 * Sk4f((255 - aa[i]) * 1.0f/255)); + SkFloatToHalf_finite(d4 * Sk4f((255 - aa[i]) * 1.0f/255)).store(&dst[i]); } } } else { @@ -83,10 +83,12 @@ static void src_1(const SkXfermode*, uint64_t dst[], const SkPM4f* src, int coun if (aa) { for (int i = 0; i < count; ++i) { const Sk4f d4 = SkHalfToFloat_finite(dst[i]); - dst[i] = SkFloatToHalf_finite(lerp_by_coverage(s4, d4, aa[i])); + SkFloatToHalf_finite(lerp_by_coverage(s4, d4, aa[i])).store(&dst[i]); } } else { - sk_memset64(dst, SkFloatToHalf_finite(s4), count); + uint64_t s4h; + SkFloatToHalf_finite(s4).store(&s4h); + sk_memset64(dst, s4h, count); } } @@ -96,12 +98,12 @@ static void src_n(const SkXfermode*, uint64_t dst[], const SkPM4f src[], int cou for (int i = 0; i < count; ++i) { const Sk4f s4 = Sk4f::Load(src[i].fVec); const Sk4f d4 = SkHalfToFloat_finite(dst[i]); - dst[i] = SkFloatToHalf_finite(lerp_by_coverage(s4, d4, aa[i])); + SkFloatToHalf_finite(lerp_by_coverage(s4, d4, aa[i])).store(&dst[i]); } } else { for (int i = 0; i < count; ++i) { const Sk4f s4 = Sk4f::Load(src[i].fVec); - dst[i] = SkFloatToHalf_finite(s4); + SkFloatToHalf_finite(s4).store(&dst[i]); } } } @@ -124,9 +126,9 @@ static void srcover_1(const SkXfermode*, uint64_t dst[], const SkPM4f* src, int const Sk4f d4 = SkHalfToFloat_finite(dst[i]); const Sk4f r4 = s4 + d4 * dst_scale; if (aa) { - dst[i] = SkFloatToHalf_finite(lerp_by_coverage(r4, d4, aa[i])); + SkFloatToHalf_finite(lerp_by_coverage(r4, d4, aa[i])).store(&dst[i]); } else { - dst[i] = SkFloatToHalf_finite(r4); + SkFloatToHalf_finite(r4).store(&dst[i]); } } } @@ -140,7 +142,7 @@ static void srcover_n(const SkXfermode*, uint64_t dst[], const SkPM4f src[], int if (aa) { r = lerp_by_coverage(r, d, aa[i]); } - dst[i] = SkFloatToHalf_finite(r); + SkFloatToHalf_finite(r).store(&dst[i]); } } |