shithub: ft²

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Update ft2_scopedraw.c

--- a/src/scopes/ft2_scopedraw.c

+++ b/src/scopes/ft2_scopedraw.c

@@ -2,7 +2,6 @@

 #include <stdint.h>

 #include <stdbool.h>

 #include <stdlib.h>

-#include <math.h>

 #include "../ft2_config.h"

 #include "../ft2_video.h"

 #include "../ft2_palette.h"

@@ -39,10 +38,10 @@

 		const double t3 = (x1 *  (1.0/2.0)) + (x2 * (1.0/2.0)) + (x3 * -(1.0/2.0)) + (1.0/6.0);

 		const double t4 =                                         x3 *  (1.0/6.0);

-		*fPtr++ = (float)t1;

-		*fPtr++ = (float)t2;

-		*fPtr++ = (float)t3;

-		*fPtr++ = (float)t4;

+		*fPtr++ = (float)t1; // tap #1 at sample offset -1

+		*fPtr++ = (float)t2; // tap #2 at sample offset  0 (center)

+		*fPtr++ = (float)t3; // tap #3 at sample offset  1

+		*fPtr++ = (float)t4; // tap #4 at sample offset  2

 	}

 	return true;

-- 

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