Call R_SetFrustum in all renderers.

It turns out glsl, sw and sw32 weren't getting any benefit from R_CullBox
because the frustum wasn't setup :P. Get another 8% out of bigass1
(174->184fps). bigass1 now runs 2x as fast as it did before I started this
optimisation run :)

include/r_local.h

@@ -139,6 +139,7 @@ extern	vec3_t			r_worldmodelorg;
 extern mat4_t   glsl_projection;
 extern mat4_t   glsl_view;
 
+void R_SetFrustum (void);
 
 void R_SpriteBegin (void);
 void R_SpriteEnd (void);

libs/video/renderer/gl/gl_rmain.c

@@ -332,46 +332,6 @@ R_DrawViewModel (void)
 	qfglDepthRange (gldepthmin, gldepthmax);
 }
 
-static inline int
-SignbitsForPlane (plane_t *out)
-{
-	int		bits, j;
-
-	// for fast box on planeside test
-
-	bits = 0;
-	for (j = 0; j < 3; j++) {
-		if (out->normal[j] < 0)
-			bits |= 1 << j;
-	}
-	return bits;
-}
-
-static void
-R_SetFrustum (void)
-{
-	int         i;
-
-	// rotate VPN right by FOV_X/2 degrees
-	RotatePointAroundVector (frustum[0].normal, vup, vpn,
-							 -(90 - r_refdef.fov_x / 2));
-	// rotate VPN left by FOV_X/2 degrees
-	RotatePointAroundVector (frustum[1].normal, vup, vpn,
-							 90 - r_refdef.fov_x / 2);
-	// rotate VPN up by FOV_Y/2 degrees
-	RotatePointAroundVector (frustum[2].normal, vright, vpn,
-							 90 - r_refdef.fov_y / 2);
-	// rotate VPN down by FOV_Y/2 degrees
-	RotatePointAroundVector (frustum[3].normal, vright, vpn,
-							 -(90 - r_refdef.fov_y / 2));
-
-	for (i = 0; i < 4; i++) {
-		frustum[i].type = PLANE_ANYZ;
-		frustum[i].dist = DotProduct (r_origin, frustum[i].normal);
-		frustum[i].signbits = SignbitsForPlane (&frustum[i]);
-	}
-}
-
 void
 gl_R_SetupFrame (void)
 {

libs/video/renderer/glsl/glsl_alias.c

@@ -145,10 +145,11 @@ calc_lighting (entity_t *ent, float *ambient, float *shadelight,
 	unsigned    i;
 	float       add;
 	vec3_t      dist;
+	int         light;
 
 	VectorSet ( -1, 0, 0, lightvec);	//FIXME
-	*ambient = max (R_LightPoint (ent->origin), max (ent->model->min_light,
+	light = R_LightPoint (ent->origin);
-													 ent->min_light) * 128);
+	*ambient = max (light, max (ent->model->min_light, ent->min_light) * 128);
 	*shadelight = *ambient;
 
 	for (i = 0; i < r_maxdlights; i++) {

libs/video/renderer/glsl/glsl_main.c

@@ -108,6 +108,7 @@ glsl_R_SetupFrame (void)
 
 	VectorCopy (r_refdef.vieworg, r_origin);
 	AngleVectors (r_refdef.viewangles, vpn, vright, vup);
+	R_SetFrustum ();
 
 	r_viewleaf = Mod_PointInLeaf (r_origin, r_worldentity.model);
 }

libs/video/renderer/r_main.c

@@ -85,3 +85,43 @@ int         d_lightstylevalue[256];     // 8.8 fraction of base light value
 
 byte        color_white[4] = { 255, 255, 255, 0 };	// alpha will be explicitly set
 byte        color_black[4] = { 0, 0, 0, 0 };		// alpha will be explicitly set
+
+static inline int
+SignbitsForPlane (plane_t *out)
+{
+	int		bits, j;
+
+	// for fast box on planeside test
+
+	bits = 0;
+	for (j = 0; j < 3; j++) {
+		if (out->normal[j] < 0)
+			bits |= 1 << j;
+	}
+	return bits;
+}
+
+void
+R_SetFrustum (void)
+{
+	int         i;
+
+	// rotate VPN right by FOV_X/2 degrees
+	RotatePointAroundVector (frustum[0].normal, vup, vpn,
+							 -(90 - r_refdef.fov_x / 2));
+	// rotate VPN left by FOV_X/2 degrees
+	RotatePointAroundVector (frustum[1].normal, vup, vpn,
+							 90 - r_refdef.fov_x / 2);
+	// rotate VPN up by FOV_Y/2 degrees
+	RotatePointAroundVector (frustum[2].normal, vright, vpn,
+							 90 - r_refdef.fov_y / 2);
+	// rotate VPN down by FOV_Y/2 degrees
+	RotatePointAroundVector (frustum[3].normal, vright, vpn,
+							 -(90 - r_refdef.fov_y / 2));
+
+	for (i = 0; i < 4; i++) {
+		frustum[i].type = PLANE_ANYZ;
+		frustum[i].dist = DotProduct (r_origin, frustum[i].normal);
+		frustum[i].signbits = SignbitsForPlane (&frustum[i]);
+	}
+}

libs/video/renderer/sw/sw_rmisc.c

@@ -240,6 +240,7 @@ R_SetupFrame (void)
 	VectorCopy (r_refdef.vieworg, r_origin);
 
 	AngleVectors (r_refdef.viewangles, vpn, vright, vup);
+	R_SetFrustum ();
 
 	// current viewleaf
 	r_viewleaf = Mod_PointInLeaf (r_origin, r_worldentity.model);

libs/video/renderer/sw32/sw32_rmisc.c

@@ -237,6 +237,7 @@ sw32_R_SetupFrame (void)
 	VectorCopy (r_refdef.vieworg, r_origin);
 
 	AngleVectors (r_refdef.viewangles, vpn, vright, vup);
+	R_SetFrustum ();
 
 	// current viewleaf
 	r_viewleaf = Mod_PointInLeaf (r_origin, r_worldentity.model);