[Bf-blender-cvs] [449ad350931] master: Move depth select loop into its own function

[Campbell Barton]

Commit: 449ad3509317d1398647a7fdd820711f6af1f871
Author: Campbell Barton
Date:   Thu Apr 27 00:01:23 2017 +1000
Branches: master
https://developer.blender.org/rB449ad3509317d1398647a7fdd820711f6af1f871

Move depth select loop into its own function

Useful for splitting out draw logic in 2.8x

===================================================================

M	source/blender/editors/space_view3d/view3d_draw.c

===================================================================

diff --git a/source/blender/editors/space_view3d/view3d_draw.c b/source/blender/editors/space_view3d/view3d_draw.c
index 3fb2761d40e..8f2ea86f836 100644
--- a/source/blender/editors/space_view3d/view3d_draw.c
+++ b/source/blender/editors/space_view3d/view3d_draw.c
@@ -2393,43 +2393,13 @@ void ED_view3d_draw_depth_gpencil(Scene *scene, ARegion *ar, View3D *v3d)
 
 }
 
-void ED_view3d_draw_depth(Scene *scene, ARegion *ar, View3D *v3d, bool alphaoverride)
+static void view3d_draw_depth_loop(Scene *scene, ARegion *ar, View3D *v3d)
 {
-	RegionView3D *rv3d = ar->regiondata;
 	Base *base;
-	short zbuf = v3d->zbuf;
-	short flag = v3d->flag;
-	float glalphaclip = U.glalphaclip;
-	int obcenter_dia = U.obcenter_dia;
+
 	/* no need for color when drawing depth buffer */
 	const short dflag_depth = DRAW_CONSTCOLOR;
-	/* temp set drawtype to solid */
-	
-	/* Setting these temporarily is not nice */
-	v3d->flag &= ~V3D_SELECT_OUTLINE;
-	U.glalphaclip = alphaoverride ? 0.5f : glalphaclip; /* not that nice but means we wont zoom into billboards */
-	U.obcenter_dia = 0;
-	
-	view3d_winmatrix_set(ar, v3d, NULL);
-	view3d_viewmatrix_set(scene, v3d, rv3d);  /* note: calls BKE_object_where_is_calc for camera... */
-	
-	mul_m4_m4m4(rv3d->persmat, rv3d->winmat, rv3d->viewmat);
-	invert_m4_m4(rv3d->persinv, rv3d->persmat);
-	invert_m4_m4(rv3d->viewinv, rv3d->viewmat);
-	
-	glClear(GL_DEPTH_BUFFER_BIT);
-	
-	glLoadMatrixf(rv3d->viewmat);
-	
-	if (rv3d->rflag & RV3D_CLIPPING) {
-		ED_view3d_clipping_set(rv3d);
-	}
-	/* get surface depth without bias */
-	rv3d->rflag |= RV3D_ZOFFSET_DISABLED;
 
-	v3d->zbuf = true;
-	glEnable(GL_DEPTH_TEST);
-	
 	/* draw set first */
 	if (scene->set) {
 		Scene *sce_iter;
@@ -2503,7 +2473,44 @@ void ED_view3d_draw_depth(Scene *scene, ARegion *ar, View3D *v3d, bool alphaover
 
 		glDepthMask(mask_orig);
 	}
+}
+
+void ED_view3d_draw_depth(Scene *scene, ARegion *ar, View3D *v3d, bool alphaoverride)
+{
+	RegionView3D *rv3d = ar->regiondata;
+	short zbuf = v3d->zbuf;
+	short flag = v3d->flag;
+	float glalphaclip = U.glalphaclip;
+	int obcenter_dia = U.obcenter_dia;
+	/* temp set drawtype to solid */
+	
+	/* Setting these temporarily is not nice */
+	v3d->flag &= ~V3D_SELECT_OUTLINE;
+	U.glalphaclip = alphaoverride ? 0.5f : glalphaclip; /* not that nice but means we wont zoom into billboards */
+	U.obcenter_dia = 0;
+	
+	view3d_winmatrix_set(ar, v3d, NULL);
+	view3d_viewmatrix_set(scene, v3d, rv3d);  /* note: calls BKE_object_where_is_calc for camera... */
+	
+	mul_m4_m4m4(rv3d->persmat, rv3d->winmat, rv3d->viewmat);
+	invert_m4_m4(rv3d->persinv, rv3d->persmat);
+	invert_m4_m4(rv3d->viewinv, rv3d->viewmat);
+	
+	glClear(GL_DEPTH_BUFFER_BIT);
 	
+	glLoadMatrixf(rv3d->viewmat);
+	
+	if (rv3d->rflag & RV3D_CLIPPING) {
+		ED_view3d_clipping_set(rv3d);
+	}
+	/* get surface depth without bias */
+	rv3d->rflag |= RV3D_ZOFFSET_DISABLED;
+
+	v3d->zbuf = true;
+	glEnable(GL_DEPTH_TEST);
+
+	view3d_draw_depth_loop(scene, ar, v3d);
+
 	if (rv3d->rflag & RV3D_CLIPPING) {
 		ED_view3d_clipping_disable();
 	}