Fix wrong access and simplify
diff --git a/src/video/SDL_blit_N.c b/src/video/SDL_blit_N.c
index 8c50318..b566f7e 100644
--- a/src/video/SDL_blit_N.c
+++ b/src/video/SDL_blit_N.c
@@ -2178,27 +2178,17 @@
b = (Pixel >> 16) & 0xFF;
a = (Pixel >> 24) & 0xFF;
- {
- int val;
- for (val = 0; val <= 3; val++) {
- if (r != val && g != val && b != val && a != val) {
- missing = val;
- break;
- }
- }
- }
-
if (r == 0) {
- r = missing;
+ r = 1;
missing = 0;
} else if (g == 0) {
- g = missing;
+ g = 1;
missing = 1;
} else if (b == 0) {
- b = missing;
+ b = 1;
missing = 2;
} else if (a == 0) {
- a = missing;
+ a = 1;
missing = 3;
}
@@ -2207,7 +2197,7 @@
*_b = b - 1;
*_a = a - 1;
- if (missing) {
+ if (_missing) {
*_missing = missing;
}
return;