diff options
Diffstat (limited to 'src/core/SkXfermodeU64.cpp')
| -rw-r--r-- | src/core/SkXfermodeU64.cpp | 67 |
1 files changed, 60 insertions, 7 deletions
diff --git a/src/core/SkXfermodeU64.cpp b/src/core/SkXfermodeU64.cpp index 5b26228170..5d260c1713 100644 --- a/src/core/SkXfermodeU64.cpp +++ b/src/core/SkXfermodeU64.cpp @@ -30,10 +30,14 @@ static Sk4f lerp_by_coverage(const Sk4f& src, const Sk4f& dst, uint8_t srcCovera return dst + (src - dst) * Sk4f(srcCoverage * (1/255.0f)); } -template <DstType D> Sk4f unit_to_dst_bias(const Sk4f& x4) { +template <DstType D> Sk4f unit_to_bias(const Sk4f& x4) { return (D == kU16_Dst) ? x4 * Sk4f(65535) : x4; } +template <DstType D> Sk4f bias_to_unit(const Sk4f& x4) { + return (D == kU16_Dst) ? x4 * Sk4f(1.0f/65535) : x4; +} + // returns value already biased by 65535 static Sk4f load_from_u16(uint64_t value) { return SkNx_cast<float>(Sk4h::Load(&value)); @@ -68,9 +72,58 @@ static inline Sk4f pm_to_rgba_order(const Sk4f& x) { /////////////////////////////////////////////////////////////////////////////////////////////////// +template <DstType D> void xfer_u64_1(const SkXfermode::U64State& state, uint64_t dst[], + const SkPM4f& src, int count, const SkAlpha aa[]) { + SkXfermodeProc4f proc = state.fXfer->getProc4f(); + SkPM4f d; + if (aa) { + for (int i = 0; i < count; ++i) { + Sk4f d4 = bias_to_unit<D>(load_from_dst<D>(dst[i])); + d4.store(d.fVec); + Sk4f r4 = unit_to_bias<D>(Sk4f::Load(proc(src, d).fVec)); + dst[i] = store_to_dst<D>(lerp_by_coverage(r4, d4, aa[i])); + } + } else { + for (int i = 0; i < count; ++i) { + bias_to_unit<D>(load_from_dst<D>(dst[i])).store(d.fVec); + Sk4f r4 = unit_to_bias<D>(Sk4f::Load(proc(src, d).fVec)); + dst[i] = store_to_dst<D>(r4); + } + } +} + +template <DstType D> void xfer_u64_n(const SkXfermode::U64State& state, uint64_t dst[], + const SkPM4f src[], int count, const SkAlpha aa[]) { + SkXfermodeProc4f proc = state.fXfer->getProc4f(); + SkPM4f d; + if (aa) { + for (int i = 0; i < count; ++i) { + Sk4f d4 = bias_to_unit<D>(load_from_dst<D>(dst[i])); + d4.store(d.fVec); + Sk4f r4 = unit_to_bias<D>(Sk4f::Load(proc(src[i], d).fVec)); + dst[i] = store_to_dst<D>(lerp_by_coverage(r4, d4, aa[i])); + } + } else { + for (int i = 0; i < count; ++i) { + bias_to_unit<D>(load_from_dst<D>(dst[i])).store(d.fVec); + Sk4f r4 = unit_to_bias<D>(Sk4f::Load(proc(src[i], d).fVec)); + dst[i] = store_to_dst<D>(r4); + } + } +} + +const U64ProcPair gU64Procs_General[] = { + { xfer_u64_1<kU16_Dst>, xfer_u64_n<kU16_Dst> }, // U16 alpha + { xfer_u64_1<kU16_Dst>, xfer_u64_n<kU16_Dst> }, // U16 opaque + { xfer_u64_1<kF16_Dst>, xfer_u64_n<kF16_Dst> }, // F16 alpha + { xfer_u64_1<kF16_Dst>, xfer_u64_n<kF16_Dst> }, // F16 opaque +}; + +/////////////////////////////////////////////////////////////////////////////////////////////////// + template <DstType D> void src_1(const SkXfermode::U64State& state, uint64_t dst[], const SkPM4f& src, int count, const SkAlpha aa[]) { - const Sk4f s4 = pm_to_rgba_order(unit_to_dst_bias<D>(Sk4f::Load(src.fVec))); + const Sk4f s4 = pm_to_rgba_order(unit_to_bias<D>(Sk4f::Load(src.fVec))); if (aa) { for (int i = 0; i < count; ++i) { const Sk4f d4 = load_from_dst<D>(dst[i]); @@ -85,13 +138,13 @@ template <DstType D> void src_n(const SkXfermode::U64State& state, uint64_t dst[ const SkPM4f src[], int count, const SkAlpha aa[]) { if (aa) { for (int i = 0; i < count; ++i) { - const Sk4f s4 = pm_to_rgba_order(unit_to_dst_bias<D>(Sk4f::Load(src[i].fVec))); + const Sk4f s4 = pm_to_rgba_order(unit_to_bias<D>(Sk4f::Load(src[i].fVec))); const Sk4f d4 = load_from_dst<D>(dst[i]); dst[i] = store_to_dst<D>(lerp_by_coverage(s4, d4, aa[i])); } } else { for (int i = 0; i < count; ++i) { - const Sk4f s4 = pm_to_rgba_order(unit_to_dst_bias<D>(Sk4f::Load(src[i].fVec))); + const Sk4f s4 = pm_to_rgba_order(unit_to_bias<D>(Sk4f::Load(src[i].fVec))); dst[i] = store_to_dst<D>(s4); } } @@ -110,7 +163,7 @@ template <DstType D> void srcover_1(const SkXfermode::U64State& state, uint64_t const SkPM4f& src, int count, const SkAlpha aa[]) { const Sk4f s4 = pm_to_rgba_order(Sk4f::Load(src.fVec)); const Sk4f dst_scale = Sk4f(1 - get_alpha(s4)); - const Sk4f s4bias = unit_to_dst_bias<D>(s4); + const Sk4f s4bias = unit_to_bias<D>(s4); for (int i = 0; i < count; ++i) { const Sk4f d4bias = load_from_dst<D>(dst[i]); const Sk4f r4bias = s4bias + d4bias * dst_scale; @@ -127,7 +180,7 @@ template <DstType D> void srcover_n(const SkXfermode::U64State& state, uint64_t for (int i = 0; i < count; ++i) { const Sk4f s4 = pm_to_rgba_order(Sk4f::Load(src[i].fVec)); const Sk4f dst_scale = Sk4f(1 - get_alpha(s4)); - const Sk4f s4bias = unit_to_dst_bias<D>(s4); + const Sk4f s4bias = unit_to_bias<D>(s4); const Sk4f d4bias = load_from_dst<D>(dst[i]); const Sk4f r4bias = s4bias + d4bias * dst_scale; if (aa) { @@ -157,7 +210,7 @@ static U64ProcPair find_procs(SkXfermode::Mode mode, uint32_t flags) { default: break; } - return { nullptr, nullptr }; + return gU64Procs_General[flags]; } SkXfermode::U64Proc1 SkXfermode::GetU64Proc1(Mode mode, uint32_t flags) { |