| /* |
| * 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 "SkColorPriv.h" |
| |
| /* |
| * The float values are 0...1 premultiplied |
| */ |
| struct SkPM4f { |
| enum { |
| A = SK_A32_SHIFT/8, |
| R = SK_R32_SHIFT/8, |
| G = SK_G32_SHIFT/8, |
| B = SK_B32_SHIFT/8, |
| }; |
| float fVec[4]; |
| |
| float a() const { return fVec[A]; } |
| |
| SkColor4f unpremul() const; |
| |
| static SkPM4f FromPMColor(SkPMColor); |
| |
| // half-float routines |
| void toF16(uint16_t[4]) const; |
| uint64_t toF16() const; // 4 float16 values packed into uint64_t |
| static SkPM4f FromF16(const uint16_t[4]); |
| |
| #ifdef SK_DEBUG |
| void assertIsUnit() const; |
| #else |
| void assertIsUnit() const {} |
| #endif |
| }; |
| |
| typedef SkPM4f (*SkXfermodeProc4f)(const SkPM4f& src, const SkPM4f& dst); |
| |
| |
| #endif |