Added SkColor4f::FromColor3f(SkColor3f, float a)

src/core/SkColor.cpp

 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkColor.h"
 #include "SkColorPriv.h"
 #include "SkFixed.h"
@@ skipping 137 matching lines @@
 #endif
 
 ///////////////////////////////////////////////////////////////////////////////////////////////////
 
 SkColor4f SkColor4f::FromColor(SkColor bgra) {
     SkColor4f rgba;
     swizzle_rb(Sk4f_fromS32(bgra)).store(rgba.vec());
     return rgba;
 }
 
+SkColor4f SkColor4f::FromColor3f(SkColor3f color3f, float a) {
+    SkColor4f rgba;
+    rgba.fR = color3f.fX;
+    rgba.fG = color3f.fY;
+    rgba.fB = color3f.fZ;
+    rgba.fA = a;
+    return rgba;
+}
+
 SkColor SkColor4f::toSkColor() const {
     return Sk4f_toS32(swizzle_rb(Sk4f::Load(this->vec())));
 }
 
 SkColor4f SkColor4f::Pin(float r, float g, float b, float a) {
     SkColor4f c4;
     Sk4f::Min(Sk4f::Max(Sk4f(r, g, b, a), Sk4f(0)), Sk4f(1)).store(c4.vec());
     return c4;
 }
 
 SkPM4f SkColor4f::premul() const {
     auto src = Sk4f::Load(this->pin().vec());
     float srcAlpha = src[3];  // need the pinned version of our alpha
     src = src * Sk4f(srcAlpha, srcAlpha, srcAlpha, 1);
 
     return SkPM4f::From4f(src);
 }