clamp Brightness at 1.0F to prevent Brightness overflow

peterzuger · Mar 22, 2020 · 3d7a876 · 3d7a876
1 parent 86ae007
commit 3d7a876
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/tlc5947/tlc5947.c b/tlc5947/tlc5947.c
@@ -413,7 +413,8 @@ static bool pattern_do_tick(tlc5947_tlc5947_obj_t* self, pattern_base_t* pattern
         case pBRIGHTNESS:{ // change overall brightness
             tprintf("pBRIGHTNESS\n\r");
             hsv c = rgbtohsv(rgb12torgb(pattern->color));
-            c.v += p->brighness.brightness;
+            float new = c.v + p->brighness.brightness;
+            c.v = new <= 1.0F ? new : 1.0F;
             pattern->color = rgbtorgb12(hsvtorgb(c));
             self->data.changed = true;
             pattern->current++;