From ce4eb573017550c37e8119681a1e83c2e646c66f Mon Sep 17 00:00:00 2001
From: Campbell Barton <ideasman42@gmail.com>
Date: Mon, 26 Mar 2012 08:10:12 +0000
Subject: [PATCH] fix [#30653] Wrong image at UV/Image Editor window

render results would be displayed on loading new files if the scene names matches, now free render-results so as not to display stale data - also saves some memory.
---
 source/blender/blenkernel/intern/blender.c         |  6 ++++++
 source/blender/render/extern/include/RE_pipeline.h |  2 ++
 source/blender/render/intern/source/pipeline.c     | 14 ++++++++++++++
 3 files changed, 22 insertions(+)

diff --git a/source/blender/blenkernel/intern/blender.c b/source/blender/blenkernel/intern/blender.c
index 26c59129914..b8df30c5de9 100644
--- a/source/blender/blenkernel/intern/blender.c
+++ b/source/blender/blenkernel/intern/blender.c
@@ -78,6 +78,7 @@
 #include "BKE_screen.h"
 #include "BKE_sequencer.h"
 #include "BKE_sound.h"
+#include "RE_pipeline.h"
 
 
 #include "BLO_undofile.h"
@@ -199,6 +200,11 @@ static void setup_app_data(bContext *C, BlendFileData *bfd, const char *filepath
 
 	recover= (G.fileflags & G_FILE_RECOVER);
 
+	/* Free all render results, without this stale data gets displayed after loading files */
+	if (mode != 'u') {
+		RE_FreeAllRenderResults();
+	}
+
 	/* Only make filepaths compatible when loading for real (not undo) */
 	if (mode != 'u') {
 		clean_paths(bfd->main);
diff --git a/source/blender/render/extern/include/RE_pipeline.h b/source/blender/render/extern/include/RE_pipeline.h
index b81066201e7..315995475e9 100644
--- a/source/blender/render/extern/include/RE_pipeline.h
+++ b/source/blender/render/extern/include/RE_pipeline.h
@@ -165,6 +165,8 @@ void RE_InitRenderCB(struct Render *re);
 void RE_FreeRender (struct Render *re);
 /* only called on exit */
 void RE_FreeAllRender (void);
+/* only call on file load */
+void RE_FreeAllRenderResults(void);
 
 /* get results and statistics */
 void RE_FreeRenderResult(struct RenderResult *rr);
diff --git a/source/blender/render/intern/source/pipeline.c b/source/blender/render/intern/source/pipeline.c
index 5db59fcdcc0..a4a244daf43 100644
--- a/source/blender/render/intern/source/pipeline.c
+++ b/source/blender/render/intern/source/pipeline.c
@@ -410,6 +410,20 @@ void RE_FreeAllRender(void)
 	}
 }
 
+/* on file load, free all re */
+void RE_FreeAllRenderResults(void)
+{
+	Render *re;
+
+	for (re = RenderGlobal.renderlist.first; re; re = re->next) {
+		render_result_free(re->result);
+		render_result_free(re->pushedresult);
+
+		re->result = NULL;
+		re->pushedresult = NULL;
+	}
+}
+
 /* ********* initialize state ******** */