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/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkPM4f_DEFINED
#define SkPM4f_DEFINED
#include "SkColorData.h"
#include "SkNx.h"
static inline Sk4f swizzle_rb(const Sk4f& x) {
return SkNx_shuffle<2, 1, 0, 3>(x);
}
static inline Sk4f swizzle_rb_if_bgra(const Sk4f& x) {
#ifdef SK_PMCOLOR_IS_BGRA
return swizzle_rb(x);
#else
return x;
#endif
}
static inline Sk4f Sk4f_fromL32(uint32_t px) {
return SkNx_cast<float>(Sk4b::Load(&px)) * (1/255.0f);
}
static inline uint32_t Sk4f_toL32(const Sk4f& px) {
Sk4f v = px;
#if !defined(SKNX_NO_SIMD) && SK_CPU_SSE_LEVEL >= SK_CPU_SSE_LEVEL_SSE2
// SkNx_cast<uint8_t, int32_t>() pins, and we don't anticipate giant floats
#elif !defined(SKNX_NO_SIMD) && defined(SK_ARM_HAS_NEON)
// SkNx_cast<uint8_t, int32_t>() pins, and so does Sk4f_round().
#else
// No guarantee of a pin.
v = Sk4f::Max(0, Sk4f::Min(v, 1));
#endif
uint32_t l32;
SkNx_cast<uint8_t>(Sk4f_round(v * 255.0f)).store(&l32);
return l32;
}
using SkPMColor4f = SkRGBA4f<kPremul_SkAlphaType>;
#endif
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