shithub: qk1

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zspans: remove useless steps

--- a/d_scan.c

+++ b/d_scan.c

@@ -279,7 +279,7 @@

 void

 D_DrawZSpans(espan_t *pspan)

 {

-	int			count, spancount, spancountminus1, izi, izistep;

+	int			count, spancount, izi, izistep;

 	uzint		*pz;

 	float		zi;

 	float		zistepu;

@@ -294,7 +294,6 @@

 		do{

 			spancount = min(count, 16);

-			spancountminus1 = spancount - 1;

 			count -= spancount;

 			izi = (int)(zi * 0x8000 * 0x10000);

@@ -302,7 +301,7 @@

 				*pz++ = izi;

 				izi += izistep;

 			}

-			zi += count ? zistepu : dvars.zistepu*spancountminus1;

+			zi += zistepu;

 		}while(count > 0);

 	}while((pspan = pspan->pnext) != nil);

 }