Merge pull request #6016 from todbot/rainbowio-255p5-fix

tannewt · web-flow · commit 34092437eca8 · 2022-02-11T09:32:15.000-08:00
fix #6015: rainbowio error for input > 255.0 < 256.0
diff --git a/shared-module/rainbowio/__init__.c b/shared-module/rainbowio/__init__.c
@@ -42,5 +42,6 @@ int32_t colorwheel(mp_float_t pos) {
         shift2 = 0;
     }
     int p = (int)(pos * 3);
+    p = (p < 256) ? p : 255;
     return (p << shift1) | ((255 - p) << shift2);
 }

Original file line number	Diff line number	Diff line change
`@@ -42,5 +42,6 @@ int32_t colorwheel(mp_float_t pos) {`
`42`	`42`	`shift2 = 0;`
`43`	`43`	`}`
`44`	`44`	`int p = (int)(pos * 3);`
	`45`	`+ p = (p < 256) ? p : 255;`
`45`	`46`	`return (p << shift1) \| ((255 - p) << shift2);`
`46`	`47`	`}`