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Diffstat (limited to 'src/opts/SkPx_none.h')
-rw-r--r-- | src/opts/SkPx_none.h | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/src/opts/SkPx_none.h b/src/opts/SkPx_none.h deleted file mode 100644 index 8217eaef3c..0000000000 --- a/src/opts/SkPx_none.h +++ /dev/null @@ -1,111 +0,0 @@ -/* - * Copyright 2015 Google Inc. - * - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ - -#ifndef SkPx_none_DEFINED -#define SkPx_none_DEFINED - -// Nothing fancy here. We're the backup _none case after all. -// Our declared sweet spot is simply a single pixel at a time. - -namespace none { - -struct SkPx { - static const int N = 1; - uint8_t f8[4]; - - SkPx(uint32_t px) { memcpy(f8, &px, 4); } - SkPx(uint8_t x, uint8_t y, uint8_t z, uint8_t a) { - f8[0] = x; f8[1] = y; f8[2] = z; f8[3] = a; - } - - static SkPx Dup(uint32_t px) { return px; } - static SkPx Load(const uint32_t* px) { return *px; } - static SkPx Load(const uint32_t* px, int n) { - SkASSERT(false); // There are no 0<n<1. - return 0; - } - - void store(uint32_t* px) const { memcpy(px, f8, 4); } - void store(uint32_t* px, int n) const { - SkASSERT(false); // There are no 0<n<1. - } - - struct Alpha { - uint8_t fA; - Alpha(uint8_t a) : fA(a) {} - - static Alpha Dup(uint8_t a) { return a; } - static Alpha Load(const uint8_t* a) { return *a; } - static Alpha Load(const uint8_t* a, int n) { - SkASSERT(false); // There are no 0<n<1. - return 0; - } - Alpha inv() const { return 255 - fA; } - }; - - struct Wide { - uint16_t f16[4]; - - Wide(uint16_t x, uint16_t y, uint16_t z, uint16_t a) { - f16[0] = x; f16[1] = y; f16[2] = z; f16[3] = a; - } - - Wide operator+(const Wide& o) const { - return Wide(f16[0]+o.f16[0], f16[1]+o.f16[1], f16[2]+o.f16[2], f16[3]+o.f16[3]); - } - Wide operator-(const Wide& o) const { - return Wide(f16[0]-o.f16[0], f16[1]-o.f16[1], f16[2]-o.f16[2], f16[3]-o.f16[3]); - } - template <int bits> Wide shl() const { - return Wide(f16[0]<<bits, f16[1]<<bits, f16[2]<<bits, f16[3]<<bits); - } - template <int bits> Wide shr() const { - return Wide(f16[0]>>bits, f16[1]>>bits, f16[2]>>bits, f16[3]>>bits); - } - - SkPx addNarrowHi(const SkPx& o) const { - Wide sum = (*this + o.widenLo()).shr<8>(); - return SkPx(sum.f16[0], sum.f16[1], sum.f16[2], sum.f16[3]); - } - }; - - Alpha alpha() const { return f8[3]; } - - Wide widenLo() const { return Wide(f8[0], f8[1], f8[2], f8[3]); } - Wide widenHi() const { return this->widenLo().shl<8>(); } - Wide widenLoHi() const { return this->widenLo() + this->widenHi(); } - - SkPx operator+(const SkPx& o) const { - return SkPx(f8[0]+o.f8[0], f8[1]+o.f8[1], f8[2]+o.f8[2], f8[3]+o.f8[3]); - } - SkPx operator-(const SkPx& o) const { - return SkPx(f8[0]-o.f8[0], f8[1]-o.f8[1], f8[2]-o.f8[2], f8[3]-o.f8[3]); - } - SkPx saturatedAdd(const SkPx& o) const { - return SkPx(SkTMax(0, SkTMin(255, f8[0]+o.f8[0])), - SkTMax(0, SkTMin(255, f8[1]+o.f8[1])), - SkTMax(0, SkTMin(255, f8[2]+o.f8[2])), - SkTMax(0, SkTMin(255, f8[3]+o.f8[3]))); - } - - Wide operator*(const Alpha& a) const { - return Wide(f8[0]*a.fA, f8[1]*a.fA, f8[2]*a.fA, f8[3]*a.fA); - } - SkPx approxMulDiv255(const Alpha& a) const { - return (*this * a).addNarrowHi(*this); - } - - SkPx addAlpha(const Alpha& a) const { - return SkPx(f8[0], f8[1], f8[2], f8[3]+a.fA); - } -}; - -} // namespace none - -typedef none::SkPx SkPx; - -#endif//SkPx_none_DEFINED |