From 9bdd6ddccd850f8a7dd2942c0b7088b77f41af0e Mon Sep 17 00:00:00 2001
From: John Tsiombikas <nuclear@mutantstargoat.com>
Date: Sat, 1 Oct 2016 15:27:47 +0300
Subject: [PATCH] polyfill debugging mode

---
 src/polyfill.c |    4 ++--
 src/polytest.c |    6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/polyfill.c b/src/polyfill.c
index 215cd78..3608b33 100644
--- a/src/polyfill.c
+++ b/src/polyfill.c
@@ -46,7 +46,7 @@ void polyfill_wire(struct pvertex *verts, int nverts)
 	}
 }
 
-#define NEXTIDX(x) ((x) ? (x) - 1 : nverts - 1)
+#define NEXTIDX(x) (((x) - 1 + nverts) % nverts)
 #define PREVIDX(x) (((x) + 1) % nverts)
 
 #define CALC_EDGE(which) \
@@ -116,7 +116,7 @@ void polyfill_flat(struct pvertex *pv, int nverts)
 
 		pixptr = (uint16_t*)fb_pixels + sline * fb_width + x;
 		for(i=0; i<slen; i++) {
-			*pixptr++ = color;
+			*pixptr++ += 10;
 		}
 
 		++sline;
diff --git a/src/polytest.c b/src/polytest.c
index fc38c16..f1835d4 100644
--- a/src/polytest.c
+++ b/src/polytest.c
@@ -84,12 +84,12 @@ static void draw(void)
 
 	g3d_matrix_mode(G3D_MODELVIEW);
 	g3d_load_identity();
-	g3d_translate(0, 0, -5);
+	g3d_translate(0, 0, -3);
 	g3d_rotate(phi, 1, 0, 0);
 	g3d_rotate(theta, 0, 1, 0);
 
-	zsort(&torus);
-	draw_mesh(&torus);
+	/*zsort(&torus);*/
+	draw_mesh(&cube);
 
 	swap_buffers(fb_pixels);
 }
-- 
1.7.10.4