3 files changed, 36 insertions, 19 deletions

diff --git a/source/blender/blenkernel/intern/displist.c b/source/blender/blenkernel/intern/displist.c
index 736165a8a98..cdf4b90cee1 100644
--- a/source/blender/blenkernel/intern/displist.c
+++ b/source/blender/blenkernel/intern/displist.c
@@ -315,13 +315,19 @@ static void init_fastshade_shadeinput(Render *re)
 
 static Render *fastshade_get_render(Scene *scene)
 {
-	Render *re= RE_GetRender("_Shade View_");
-	if(re==NULL) {
-		re= RE_NewRender("_Shade View_");
-	
-		RE_Database_Baking(re, scene, 0, 0);	/* 0= no faces */
+	/* XXX ugly global still, but we can't do preview while rendering */
+	if(G.rendering==0) {
+		
+		Render *re= RE_GetRender("_Shade View_");
+		if(re==NULL) {
+			re= RE_NewRender("_Shade View_");
+		
+			RE_Database_Baking(re, scene, 0, 0);	/* 0= no faces */
+		}
+		return re;
 	}
-	return re;
+	
+	return NULL;
 }
 
 /* called on file reading */
@@ -611,18 +617,20 @@ static void mesh_create_shadedColors(Render *re, Object *ob, int onlyForMesh, un
 
 void shadeMeshMCol(Scene *scene, Object *ob, Mesh *me)
 {
+	Render *re= fastshade_get_render(scene);
 	int a;
 	char *cp;
 	unsigned int *mcol= (unsigned int*)me->mcol;
 	
-	Render *re= fastshade_get_render(scene);
-	mesh_create_shadedColors(re, ob, 1, &mcol, NULL);
-	me->mcol= (MCol*)mcol;
+	if(re) {
+		mesh_create_shadedColors(re, ob, 1, &mcol, NULL);
+		me->mcol= (MCol*)mcol;
 
-	/* swap bytes */
-	for(cp= (char *)me->mcol, a= 4*me->totface; a>0; a--, cp+=4) {
-		SWAP(char, cp[0], cp[3]);
-		SWAP(char, cp[1], cp[2]);
+		/* swap bytes */
+		for(cp= (char *)me->mcol, a= 4*me->totface; a>0; a--, cp+=4) {
+			SWAP(char, cp[0], cp[3]);
+			SWAP(char, cp[1], cp[2]);
+		}
 	}
 }
 
@@ -641,6 +649,8 @@ void shadeDispList(Scene *scene, Base *base)
 	int a, need_orco;
 	
 	re= fastshade_get_render(scene);
+	if(re==NULL)
+		return;
 	
 	dl = find_displist(&ob->disp, DL_VERTCOL);
 	if (dl) {
diff --git a/source/blender/blenkernel/intern/image.c b/source/blender/blenkernel/intern/image.c
index 8eef9984c92..6b231cfc702 100644
--- a/source/blender/blenkernel/intern/image.c
+++ b/source/blender/blenkernel/intern/image.c
@@ -1812,7 +1812,7 @@ static ImBuf *image_get_render_result(Image *ima, ImageUser *iuser)
 	Render *re= NULL;
 	RenderResult *rr= NULL;
 	
-	if(iuser->scene) {
+	if(iuser && iuser->scene) {
 		re= RE_GetRender(iuser->scene->id.name);
 		rr= RE_GetResult(re);
 	}
diff --git a/source/blender/editors/interface/interface_icons.c b/source/blender/editors/interface/interface_icons.c
index 4d8ec5996be..315b8693905 100644
--- a/source/blender/editors/interface/interface_icons.c
+++ b/source/blender/editors/interface/interface_icons.c
@@ -728,21 +728,28 @@ static void icon_create_mipmap(struct PreviewImage* prv_img, int miplevel)
 }
 
 /* create single icon from jpg, png etc. */
-static void icon_from_image(Image *img, int miplevel)
+static void icon_from_image(Scene *scene, Image *img, int miplevel)
 {
+	ImBuf *ibuf= NULL;
+	ImageUser iuser;
+	PreviewImage *pi;
 	unsigned int pr_size;
 	short image_loaded = 0;
-	struct ImBuf* ibuf=NULL;
-	PreviewImage* pi;
 
 	/* img->ok is zero when Image cannot load */
 	if (img==NULL || img->ok==0)
 		return;
 
+	/* setup dummy image user */
+	memset(&iuser, 0, sizeof(ImageUser));
+	iuser.ok= iuser.framenr= 1;
+	iuser.scene= scene;
+	
 	/* elubie: this needs to be changed: here image is always loaded if not
 	   already there. Very expensive for large images. Need to find a way to 
 	   only get existing ibuf */
-	ibuf = BKE_image_get_ibuf(img, NULL);
+	
+	ibuf = BKE_image_get_ibuf(img, &iuser);
 	if(ibuf==NULL || ibuf->rect==NULL) {
 		return;
 	}
@@ -788,7 +795,7 @@ static void icon_set_image(Scene *scene, ID *id, PreviewImage* prv_img, int mipl
 	/* no drawing (see last parameter doDraw, just calculate preview image 
 		- hopefully small enough to be fast */
 	if (GS(id->name) == ID_IM)
-		icon_from_image((struct Image*)id, miplevel);
+		icon_from_image(scene, (struct Image*)id, miplevel);
 	else {	
 		/* create the preview rect */
 		icon_create_mipmap(prv_img, miplevel);