de-duplicate multires image filter function. (no functional change)

2 files changed, 46 insertions, 45 deletions

diff --git a/source/blender/render/extern/include/RE_shader_ext.h b/source/blender/render/extern/include/RE_shader_ext.h
index 958c19ab9ca..a59ebdaa5a2 100644
--- a/source/blender/render/extern/include/RE_shader_ext.h
+++ b/source/blender/render/extern/include/RE_shader_ext.h
@@ -193,6 +193,8 @@ typedef struct ShadeInput
 /* node shaders... */
 struct Tex;
 struct MTex;
+struct ImBuf;
+
 /* this one uses nodes */
 int	multitex_ext(struct Tex *tex, float *texvec, float *dxt, float *dyt, int osatex, struct TexResult *texres);
 /* nodes disabled */
@@ -209,6 +211,6 @@ struct Object;
 void RE_shade_external(struct Render *re, struct ShadeInput *shi, struct ShadeResult *shr);
 int RE_bake_shade_all_selected(struct Render *re, int type, struct Object *actob, short *do_update, float *progress);
 struct Image *RE_bake_shade_get_image(void);
+void RE_bake_ibuf_filter(struct ImBuf *ibuf, unsigned char *mask, const int filter);
 
 #endif /* RE_SHADER_EXT_H */
-
diff --git a/source/blender/render/intern/source/rendercore.c b/source/blender/render/intern/source/rendercore.c
index e6206007b7a..d0daf5b817a 100644
--- a/source/blender/render/intern/source/rendercore.c
+++ b/source/blender/render/intern/source/rendercore.c
@@ -2590,6 +2590,48 @@ static void *do_bake_thread(void *bs_v)
 	return NULL;
 }
 
+void RE_bake_ibuf_filter(ImBuf *ibuf, unsigned char *mask, const int filter)
+{
+	/* must check before filtering */
+	const short is_new_alpha= (ibuf->depth != 32) && BKE_alphatest_ibuf(ibuf);
+
+	/* Margin */
+	if(filter) {
+		char *temprect;
+		int i;
+
+		/* extend the mask +2 pixels from the image,
+		 * this is so colors dont blend in from outside */
+
+		for(i=0; i< filter; i++)
+			IMB_mask_filter_extend((char *)ibuf->userdata, ibuf->x, ibuf->y);
+
+		temprect = MEM_dupallocN(ibuf->userdata);
+
+		/* expand twice to clear this many pixels, so they blend back in */
+		IMB_mask_filter_extend(temprect, ibuf->x, ibuf->y);
+		IMB_mask_filter_extend(temprect, ibuf->x, ibuf->y);
+
+		/* clear all pixels in the margin */
+		IMB_mask_clear(ibuf, temprect, FILTER_MASK_MARGIN);
+		MEM_freeN(temprect);
+
+		for(i= 0; i < filter; i++)
+			IMB_filter_extend(ibuf, (char *)ibuf->userdata);
+	}
+
+	/* if the bake results in new alpha then change the image setting */
+	if(is_new_alpha) {
+		ibuf->depth= 32;
+	}
+	else {
+		if(filter) {
+			/* clear alpha added by filtering */
+			IMB_rectfill_alpha(ibuf, 1.0f);
+		}
+	}
+}
+
 /* using object selection tags, the faces with UV maps get baked */
 /* render should have been setup */
 /* returns 0 if nothing was handled */
@@ -2677,50 +2719,7 @@ int RE_bake_shade_all_selected(Render *re, int type, Object *actob, short *do_up
 			if(!ibuf)
 				continue;
 
-			/* must check before filtering */
-			is_new_alpha= (ibuf->depth != 32) && BKE_alphatest_ibuf(ibuf);
-
-			if(re->r.bake_filter) {
-				if (usemask) {
-					/* extend the mask +2 pixels from the image,
-					 * this is so colors dont blend in from outside */
-					char *temprect;
-					
-					for(a=0; a<re->r.bake_filter; a++)
-						IMB_mask_filter_extend((char *)ibuf->userdata, ibuf->x, ibuf->y);
-					
-					temprect = MEM_dupallocN(ibuf->userdata);
-					
-					/* expand twice to clear this many pixels, so they blend back in */
-					IMB_mask_filter_extend(temprect, ibuf->x, ibuf->y);
-					IMB_mask_filter_extend(temprect, ibuf->x, ibuf->y);
-					
-					/* clear all pixels in the margin*/
-					IMB_mask_clear(ibuf, temprect, FILTER_MASK_MARGIN);
-					MEM_freeN(temprect);
-				}
-				
-				for(a=0; a<re->r.bake_filter; a++) {
-					/*the mask, ibuf->userdata - can be null, in this case only zero alpha is used */
-					IMB_filter_extend(ibuf, (char *)ibuf->userdata);
-				}
-				
-				if (ibuf->userdata) {
-					MEM_freeN(ibuf->userdata);
-					ibuf->userdata= NULL;
-				}
-			}
-
-			/* if the bake results in new alpha then change the image setting */
-			if(is_new_alpha) {
-				ibuf->depth= 32;
-			}
-			else {
-				if(re->r.bake_filter) {
-					/* clear alpha added by filtering */
-					IMB_rectfill_alpha(ibuf, 1.0f);
-				}
-			}
+			RE_bake_ibuf_filter(ibuf, (unsigned char *)ibuf->userdata, re->r.bake_filter);
 
 			ibuf->userflags |= IB_BITMAPDIRTY;
 			if (ibuf->rect_float) IMB_rect_from_float(ibuf);