Fix T44336: Unable to select cycles-specific passes in UV/image editor

This approach gets rid of iuser->pass for good.

Also, I'm commenting out the pass increase/decrease. This was broken
since multiview. I will fix it later (before 2.75), but I didn't want to
get this patch mangled with that fix.

Thanks Sergey Sharybin for the review and feedbacks.

Reviewers: sergey

Differential Revision: https://developer.blender.org/D1232

source/blender/blenkernel/intern/image.c

@@ -2475,7 +2475,7 @@ static void image_init_imageuser(Image *ima, ImageUser *iuser)
 	RenderResult *rr = ima->rr;
 
 	iuser->multi_index = 0;
-	iuser->layer = iuser->pass = iuser->view = 0;
+	iuser->layer = iuser->view = 0;
 	iuser->passtype = SCE_PASS_COMBINED;
 
 	if (rr) {
@@ -2649,15 +2649,14 @@ RenderPass *BKE_image_multilayer_index(RenderResult *rr, ImageUser *iuser)
 		return NULL;
 
 	if (iuser) {
-		short index = 0, rv_index, rl_index = 0, rp_index;
+		short index = 0, rv_index, rl_index = 0;
 		bool is_stereo = (iuser->flag & IMA_SHOW_STEREO) && RE_RenderResult_is_stereo(rr);
 
 		rv_index = is_stereo ? iuser->multiview_eye : iuser->view;
+		if (RE_HasFakeLayer(rr)) rl_index += 1;
 
 		for (rl = rr->layers.first; rl; rl = rl->next, rl_index++) {
-			rp_index = 0;
-
-			for (rpass = rl->passes.first; rpass; rpass = rpass->next, index++, rp_index++) {
+			for (rpass = rl->passes.first; rpass; rpass = rpass->next, index++) {
 				if (iuser->layer == rl_index &&
 				    iuser->passtype == rpass->passtype &&
 				    rv_index == rpass->view_id)
@@ -2668,20 +2667,16 @@ RenderPass *BKE_image_multilayer_index(RenderResult *rr, ImageUser *iuser)
 			if (rpass)
 				break;
 		}
-
-		if (rpass) {
-			iuser->multi_index = index;
-			iuser->pass = rp_index;
-		}
-		else {
-			iuser->multi_index = 0;
-			iuser->pass = 0;
-		}
+		iuser->multi_index = (rpass ? index : 0);
 	}
+
 	if (rpass == NULL) {
 		rl = rr->layers.first;
 		if (rl)
 			rpass = rl->passes.first;
+
+		if (rpass && iuser)
+			iuser->passtype = rpass->passtype;
 	}
 
 	return rpass;

source/blender/editors/render/render_internal.c

@@ -188,7 +188,7 @@ static void image_buffer_rect_update(RenderJob *rj, RenderResult *rr, ImBuf *ibu
 	 *                                              - sergey -
 	 */
 	/* TODO(sergey): Need to check has_combined here? */
-	if (iuser->pass == 0) {
+	if (iuser->passtype == SCE_PASS_COMBINED) {
 		size_t view_id = BKE_scene_multiview_view_id_get(&scene->r, viewname);
 		/* find current float rect for display, first case is after composite... still weak */
 		rectf = RE_RenderViewGetRectf(rr, view_id);
@@ -519,7 +519,6 @@ static void render_image_update_pass_and_layer(RenderJob *rj, RenderResult *rr,
 			}
 		}
 
-		iuser->pass = sima->iuser.pass;
 		iuser->layer = sima->iuser.layer;
 
 		RE_ReleaseResult(rj->re);

source/blender/editors/space_image/image_buttons.c

@@ -435,7 +435,7 @@ static void ui_imageuser_pass_menu(bContext *UNUSED(C), uiLayout *layout, void *
 		passflag |= rpass->passtype;
 
 final:
-		uiDefButS(block, UI_BTYPE_BUT_MENU, B_NOP, IFACE_(rpass->internal_name), 0, 0,
+		uiDefButI(block, UI_BTYPE_BUT_MENU, B_NOP, IFACE_(rpass->internal_name), 0, 0,
 		          UI_UNIT_X * 5, UI_UNIT_X, &iuser->passtype, (float) rpass->passtype, 0.0, 0, -1, "");
 	}
 
@@ -545,6 +545,8 @@ static void image_multi_declay_cb(bContext *C, void *rr_v, void *iuser_v)
 }
 static void image_multi_incpass_cb(bContext *C, void *rr_v, void *iuser_v) 
 {
+	/* this wasn't working before multiview, it needs to be fixed, but it wasn't working anyways --dfelinto */
+#if 0
 	RenderResult *rr = rr_v;
 	ImageUser *iuser = iuser_v;
 	RenderLayer *rl = BLI_findlink(&rr->layers, iuser->layer);
@@ -561,9 +563,16 @@ static void image_multi_incpass_cb(bContext *C, void *rr_v, void *iuser_v)
 			WM_event_add_notifier(C, NC_IMAGE | ND_DRAW, NULL);
 		}
 	}
+#else
+	(void)C;
+	(void)rr_v;
+	(void)iuser_v;
+#endif
 }
 static void image_multi_decpass_cb(bContext *C, void *rr_v, void *iuser_v) 
 {
+	/* this wasn't working before multiview, it needs to be fixed, but it wasn't working anyways --dfelinto */
+#if 0
 	ImageUser *iuser = iuser_v;
 
 	if (iuser->pass > 0) {
@@ -571,6 +580,11 @@ static void image_multi_decpass_cb(bContext *C, void *rr_v, void *iuser_v)
 		BKE_image_multilayer_index(rr_v, iuser); 
 		WM_event_add_notifier(C, NC_IMAGE | ND_DRAW, NULL);
 	}
+#else
+	(void)C;
+	(void)rr_v;
+	(void)iuser_v;
+#endif
 }
 
 /* 5 view button callbacks... */
@@ -657,7 +671,7 @@ static void uiblock_layer_pass_buttons(uiLayout *layout, Image *image, RenderRes
 
 		/* pass */
 		fake_name = ui_imageuser_pass_fake_name(rl);
-		rpass = (rl ? BLI_findlink(&rl->passes, iuser->pass  - (fake_name ? 1 : 0)) : NULL);
+		rpass = (rl ? RE_pass_find_by_type(rl, iuser->passtype, ((RenderView *)rr->views.first)->name) : NULL);
 
 		display_name = rpass ? rpass->internal_name : (fake_name ? fake_name : "");
 		but = uiDefMenuBut(block, ui_imageuser_pass_menu, rnd_pt, display_name, 0, 0, wmenu3, UI_UNIT_Y, TIP_("Select Pass"));

source/blender/editors/space_image/image_ops.c

@@ -1533,41 +1533,6 @@ static void save_image_options_to_op(SaveImageOptions *simopts, wmOperator *op)
 	RNA_string_set(op->ptr, "filepath", simopts->filepath);
 }
 
-/* returns the pass index for the view_id */
-static int get_multiview_pass_id(RenderResult *rr, ImageUser *iuser, const int view_id)
-{
-	RenderLayer *rl;
-	RenderPass *rpass;
-	int passtype;
-	short rl_index = 0, rp_index;
-
-	if (rr == NULL || iuser == NULL)
-		return 0;
-
-	if (BLI_listbase_count_ex(&rr->views, 2) < 2)
-		return iuser->pass;
-
-	if (RE_HasFakeLayer(rr))
-		rl_index ++; /* fake compo/sequencer layer */
-
-	rl = BLI_findlink(&rr->layers, rl_index);
-	if (!rl) return iuser->pass;
-
-	rpass = BLI_findlink(&rl->passes, iuser->pass);
-	passtype = rpass->passtype;
-
-	rp_index = 0;
-	for (rpass = rl->passes.first; rpass; rpass = rpass->next, rp_index++) {
-		if (rpass->passtype == passtype &&
-		    rpass->view_id == view_id)
-		{
-			return rp_index;
-		}
-	}
-
-	return iuser->pass;
-}
-
 static void save_image_post(wmOperator *op, ImBuf *ibuf, Image *ima, int ok, int save_copy, const char *relbase, int relative, int do_newpath, const char *filepath)
 {
 	if (ok) {
@@ -1761,13 +1726,10 @@ static bool save_image_doit(bContext *C, SpaceImage *sima, wmOperator *op, SaveI
 					iuser.view = i;
 					iuser.flag &= ~IMA_SHOW_STEREO;
 
-					if (rr) {
-						iuser.pass = get_multiview_pass_id(rr, &sima->iuser, i);
+					if (rr)
 						BKE_image_multilayer_index(rr, &iuser);
-					}
-					else {
+					else
 						BKE_image_multiview_index(ima, &iuser);
-					}
 
 					ibuf = BKE_image_acquire_ibuf(sima->image, &iuser, &lock);
 					ibuf->planes = planes;
@@ -1810,9 +1772,7 @@ static bool save_image_doit(bContext *C, SpaceImage *sima, wmOperator *op, SaveI
 
 					if (rr) {
 						int id = BLI_findstringindex(&rr->views, names[i], offsetof(RenderView, name));
-						iuser.pass = get_multiview_pass_id(rr, &sima->iuser, id);
 						iuser.view = id;
-
 						BKE_image_multilayer_index(rr, &iuser);
 					}
 					else {

source/blender/makesdna/DNA_image_types.h

@@ -55,12 +55,10 @@ typedef struct ImageUser {
 	char ok;
 
 	char multiview_eye;			/* multiview current eye - for internal use of drawing routines */
+	int passtype;
 
-	short multi_index, view, layer, pass;	 /* listbase indices, for menu browsing or retrieve buffer */
-
+	short multi_index, view, layer;	 /* listbase indices, for menu browsing or retrieve buffer */
 	short flag;
-	short passtype;
-
 } ImageUser;
 
 typedef struct ImageAnim {

source/blender/makesrna/intern/rna_image.c

@@ -538,11 +538,6 @@ static void rna_def_imageuser(BlenderRNA *brna)
 	RNA_def_property_clear_flag(prop, PROP_EDITABLE); /* image_multi_cb */
 	RNA_def_property_ui_text(prop, "Layer", "Layer in multilayer image");
 
-	prop = RNA_def_property(srna, "multilayer_pass", PROP_INT, PROP_UNSIGNED);
-	RNA_def_property_int_sdna(prop, NULL, "pass");
-	RNA_def_property_clear_flag(prop, PROP_EDITABLE); /* image_multi_cb */
-	RNA_def_property_ui_text(prop, "Pass", "Pass in multilayer image");
-
 	prop = RNA_def_property(srna, "multilayer_view", PROP_INT, PROP_UNSIGNED);
 	RNA_def_property_int_sdna(prop, NULL, "view");
 	RNA_def_property_clear_flag(prop, PROP_EDITABLE); /* image_multi_cb */

source/blender/makesrna/intern/rna_render.c

@@ -384,14 +384,7 @@ static PointerRNA rna_BakePixel_next_get(PointerRNA *ptr)
 
 static RenderPass *rna_RenderPass_find_by_type(RenderLayer *rl, int passtype, const char *view)
 {
-	RenderPass *rp;
-	for (rp = rl->passes.first; rp; rp = rp->next) {
-		if (rp->passtype == passtype) {
-			if (STREQ(rp->view, view))
-				return rp;
-		}
-	}
-	return NULL;
+	return RE_pass_find_by_type(rl, passtype, view);
 }
 
 #else /* RNA_RUNTIME */

source/blender/render/extern/include/RE_pipeline.h

@@ -315,6 +315,8 @@ int RE_seq_render_active(struct Scene *scene, struct RenderData *rd);
 
 bool RE_layers_have_name(struct RenderResult *result);
 
+struct RenderPass *RE_pass_find_by_type(struct RenderLayer *rl, int passtype, const char *viewname);
+
 /* shaded view or baking options */
 #define RE_BAKE_LIGHT				0	/* not listed in rna_scene.c -> can't be enabled! */
 #define RE_BAKE_ALL					1

source/blender/render/intern/source/pipeline.c

@@ -3856,4 +3856,14 @@ bool RE_layers_have_name(struct RenderResult *rr)
 	return false;
 }
 
-
+RenderPass *RE_pass_find_by_type(RenderLayer *rl, int passtype, const char *viewname)
+{
+	RenderPass *rp;
+	for (rp = rl->passes.first; rp; rp = rp->next) {
+		if (rp->passtype == passtype) {
+			if (STREQ(rp->view, viewname))
+				return rp;
+		}
+	}
+	return NULL;
+}