xref: /aosp_15_r20/external/skia/docs/examples/RGBA4f_FromColor.cpp (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
1 // Copyright 2019 Google LLC.
2 // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
3 #include "tools/fiddle/examples.h"
4 REG_FIDDLE(RGBA4f_FromColor, 256, 256, true, 0) {
draw(SkCanvas * canvas)5 void draw(SkCanvas* canvas) {
6     uint8_t red = 77, green = 101, blue = 153, alpha = 43;
7     SkColor argb = SkColorSetARGB(alpha, red, green, blue);
8     SkColor4f color4f = SkColor4f::FromColor(argb);
9     SkDebugf("red=%g green=%g blue=%g alpha=%g\n", color4f.fR, color4f.fG, color4f.fB, color4f.fA);
10     SkColor fromColor4f = color4f.toSkColor();
11     SkDebugf("red=%u green=%u blue=%u alpha=%u\n", SkColorGetR(fromColor4f),
12              SkColorGetG(fromColor4f), SkColorGetB(fromColor4f), SkColorGetA(fromColor4f));
13 }
14 }  // END FIDDLE
15