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- /*
- * Copyright 2015 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- #include "src/core/SkUtils.h"
- namespace { // NOLINT(google-build-namespaces)
- inline Sk4px::Wide Sk4px::widen() const {
- return Sk16h((*this)[ 0], (*this)[ 1], (*this)[ 2], (*this)[ 3],
- (*this)[ 4], (*this)[ 5], (*this)[ 6], (*this)[ 7],
- (*this)[ 8], (*this)[ 9], (*this)[10], (*this)[11],
- (*this)[12], (*this)[13], (*this)[14], (*this)[15]);
- }
- inline Sk4px::Wide Sk4px::mulWiden(const Sk16b& other) const {
- return this->widen() * Sk4px(other).widen();
- }
- inline Sk4px Sk4px::Wide::addNarrowHi(const Sk16h& other) const {
- Sk4px::Wide r = (*this + other) >> 8;
- return Sk16b(r[ 0], r[ 1], r[ 2], r[ 3],
- r[ 4], r[ 5], r[ 6], r[ 7],
- r[ 8], r[ 9], r[10], r[11],
- r[12], r[13], r[14], r[15]);
- }
- inline Sk4px Sk4px::Wide::div255() const {
- // Calculated as ((x+128) + ((x+128)>>8)) >> 8.
- auto v = *this + Sk16h(128);
- return v.addNarrowHi(v>>8);
- }
- inline Sk4px Sk4px::alphas() const {
- static_assert(SK_A32_SHIFT == 24, "This method assumes little-endian.");
- return Sk16b((*this)[ 3], (*this)[ 3], (*this)[ 3], (*this)[ 3],
- (*this)[ 7], (*this)[ 7], (*this)[ 7], (*this)[ 7],
- (*this)[11], (*this)[11], (*this)[11], (*this)[11],
- (*this)[15], (*this)[15], (*this)[15], (*this)[15]);
- }
- inline Sk4px Sk4px::Load4Alphas(const SkAlpha a[4]) {
- return Sk16b(a[0], a[0], a[0], a[0],
- a[1], a[1], a[1], a[1],
- a[2], a[2], a[2], a[2],
- a[3], a[3], a[3], a[3]);
- }
- inline Sk4px Sk4px::Load2Alphas(const SkAlpha a[2]) {
- return Sk16b(a[0], a[0], a[0], a[0],
- a[1], a[1], a[1], a[1],
- 0,0,0,0,
- 0,0,0,0);
- }
- } // namespace
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