From e5393153629cb39ea6af0ca4a35370442127c5c2 Mon Sep 17 00:00:00 2001
From: John Tsiombikas <nuclear@mutantstargoat.com>
Date: Mon, 19 Feb 2018 04:29:26 +0200
Subject: [PATCH 1/1] I need to go deeper

---
 src/bsptree.c             |   22 ++++++++++++++++++++--
 tools/gltest/Makefile     |    2 +-
 tools/gltest/src/g3demu.c |    6 ++++++
 3 files changed, 27 insertions(+), 3 deletions(-)

diff --git a/src/bsptree.c b/src/bsptree.c
index 30f67ef..334e530 100644
--- a/src/bsptree.c
+++ b/src/bsptree.c
@@ -239,6 +239,22 @@ static struct bspnode *add_poly_tree(struct bspnode *n, struct g3d_vertex *v, in
 	return n;
 }
 
+void debug_draw_poly(struct g3d_vertex *varr, int vcount)
+{
+	int i, nfaces = vcount - 2;
+	int vbuf_size = nfaces * 3;
+	struct g3d_vertex *vbuf = alloca(vbuf_size * sizeof *vbuf);
+	struct g3d_vertex *vptr = varr + 1;
+
+	for(i=0; i<nfaces; i++) {
+		vbuf[i * 3] = varr[0];
+		vbuf[i * 3 + 1] = *vptr++;
+		vbuf[i * 3 + 2] = *vptr;
+	}
+
+	g3d_draw_indexed(G3D_TRIANGLES, vbuf, vbuf_size, 0, 0);
+}
+
 static void draw_bsp_tree(struct bspnode *n, const vec3_t *vdir)
 {
 	float dot;
@@ -248,11 +264,13 @@ static void draw_bsp_tree(struct bspnode *n, const vec3_t *vdir)
 	dot = vdir->x * n->plane.nx + vdir->y * n->plane.ny + vdir->z * n->plane.nz;
 	if(dot >= 0.0f) {
 		draw_bsp_tree(n->front, vdir);
-		g3d_draw_indexed(n->vcount, n->verts, n->vcount, 0, 0);
+		//g3d_draw_indexed(n->vcount, n->verts, n->vcount, 0, 0);
+		debug_draw_poly(n->verts, n->vcount);
 		draw_bsp_tree(n->back, vdir);
 	} else {
 		draw_bsp_tree(n->back, vdir);
-		g3d_draw_indexed(n->vcount, n->verts, n->vcount, 0, 0);
+		//g3d_draw_indexed(n->vcount, n->verts, n->vcount, 0, 0);
+		debug_draw_poly(n->verts, n->vcount);
 		draw_bsp_tree(n->front, vdir);
 	}
 }
diff --git a/tools/gltest/Makefile b/tools/gltest/Makefile
index 74a0203..9eec850 100644
--- a/tools/gltest/Makefile
+++ b/tools/gltest/Makefile
@@ -15,7 +15,7 @@ incpath = -I$(root)/src
 libpath = -L$(root)/libs/imago -L$(root)/libs/mikmod
 
 CFLAGS = -pedantic -Wall -g $(incpath)
-LDFLAGS = -lGL -lGLU -lglut -lm -limago -lmikmod
+LDFLAGS = $(libpath) -lGL -lGLU -lglut -lm -limago -lmikmod
 
 $(bin): $(obj)
 	$(CC) -o $@ $(obj) $(LDFLAGS)
diff --git a/tools/gltest/src/g3demu.c b/tools/gltest/src/g3demu.c
index 1068615..c38e288 100644
--- a/tools/gltest/src/g3demu.c
+++ b/tools/gltest/src/g3demu.c
@@ -78,6 +78,12 @@ void g3d_draw_indexed(int prim, const struct g3d_vertex *varr, int varr_size,
 	const uint16_t *iptr = iarr;
 
 	switch(prim) {
+	case G3D_POINTS:
+		glprim = GL_POINTS;
+		break;
+	case G3D_LINES:
+		glprim = GL_LINES;
+		break;
 	case G3D_TRIANGLES:
 		glprim = GL_TRIANGLES;
 		break;
-- 
1.7.10.4