Fix for view map cache not flushed by updates of edge detection options.

This fix should be considered for inclusion in the 2.73 release, since
it concerns a new feature of Freestyle introduced in 2.73.

source/blender/freestyle/CMakeLists.txt

@@ -392,6 +392,8 @@ set(SRC
 	intern/scene_graph/NodeGroup.h
 	intern/scene_graph/NodeLight.cpp
 	intern/scene_graph/NodeLight.h
+	intern/scene_graph/NodeSceneRenderLayer.cpp
+	intern/scene_graph/NodeSceneRenderLayer.h
 	intern/scene_graph/NodeShape.cpp
 	intern/scene_graph/NodeShape.h
 	intern/scene_graph/NodeTransform.cpp

source/blender/freestyle/intern/application/Controller.cpp

@@ -40,6 +40,7 @@ extern "C" {
 #include "../scene_graph/NodeDrawingStyle.h"
 #include "../scene_graph/NodeShape.h"
 #include "../scene_graph/NodeTransform.h"
+#include "../scene_graph/NodeSceneRenderLayer.h"
 #include "../scene_graph/ScenePrettyPrinter.h"
 #include "../scene_graph/VertexRep.h"
 
@@ -294,6 +295,7 @@ int Controller::LoadMesh(Render *re, SceneRenderLayer *srl)
 		}
 		cam->setProjectionMatrix(proj);
 		_RootNode->AddChild(cam);
+		_RootNode->AddChild(new NodeSceneRenderLayer(*srl));
 
 		sceneHashFunc.reset();
 		//blenderScene->accept(sceneHashFunc);

source/blender/freestyle/intern/scene_graph/NodeSceneRenderLayer.cpp

@@ -0,0 +1,35 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file blender/freestyle/intern/scene_graph/NodeSceneRenderLayer.cpp
+ *  \ingroup freestyle
+ *  \brief Class to represent a scene render layer in Blender.
+ */
+
+#include "NodeSceneRenderLayer.h"
+
+namespace Freestyle {
+
+void NodeSceneRenderLayer::accept(SceneVisitor& v)
+{
+	v.visitNodeSceneRenderLayer(*this);
+}
+
+} /* namespace Freestyle */

source/blender/freestyle/intern/scene_graph/NodeSceneRenderLayer.h

@@ -0,0 +1,64 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+#ifndef __FREESTYLE_NODE_SCENE_RENDER_LAYER_H__
+#define __FREESTYLE_NODE_SCENE_RENDER_LAYER_H__
+
+/** \file blender/freestyle/intern/scene_graph/NodeSceneRenderLayer.h
+ *  \ingroup freestyle
+ *  \brief Class to represent a scene render layer in Blender.
+ */
+
+#include "Node.h"
+
+extern "C" {
+#include "DNA_scene_types.h" /* for SceneRenderLayer */
+}
+
+using namespace std;
+
+namespace Freestyle {
+
+class NodeSceneRenderLayer : public Node
+{
+public:
+	inline NodeSceneRenderLayer(SceneRenderLayer& srl) : Node(), _SceneRenderLayer(srl) {}
+	virtual ~NodeSceneRenderLayer() {}
+
+	inline struct SceneRenderLayer& sceneRenderLayer() const
+	{
+		return _SceneRenderLayer;
+	}
+
+	inline void setSceneRenderLayer(SceneRenderLayer& srl)
+	{
+		_SceneRenderLayer = srl;
+	}
+
+	/*! Accept the corresponding visitor */
+	virtual void accept(SceneVisitor& v);
+
+protected:
+	SceneRenderLayer& _SceneRenderLayer;
+};
+
+} /* namespace Freestyle */
+
+#endif // __FREESTYLE_NODE_SCENE_RENDER_LAYER_H__

source/blender/freestyle/intern/scene_graph/SceneHash.cpp

@@ -35,6 +35,15 @@ string SceneHash::toString()
 	 return ss.str();
 }
 
+void SceneHash::visitNodeSceneRenderLayer(NodeSceneRenderLayer& srl)
+{
+	struct FreestyleConfig *config = &srl.sceneRenderLayer().freestyleConfig;
+	adler32((unsigned char *)&config->flags, sizeof(int));
+	adler32((unsigned char *)&config->crease_angle, sizeof(float));
+	adler32((unsigned char *)&config->sphere_radius, sizeof(float));
+	adler32((unsigned char *)&config->dkr_epsilon, sizeof(float));
+}
+
 void SceneHash::visitNodeCamera(NodeCamera& cam)
 {
 	double *proj = cam.projectionMatrix();

source/blender/freestyle/intern/scene_graph/SceneHash.h

@@ -26,6 +26,7 @@
  */
 
 #include "IndexedFaceSet.h"
+#include "NodeSceneRenderLayer.h"
 #include "NodeCamera.h"
 #include "SceneVisitor.h"
 
@@ -48,6 +49,7 @@ public:
 	virtual ~SceneHash() {}
 
 	VISIT_DECL(NodeCamera)
+	VISIT_DECL(NodeSceneRenderLayer)
 	VISIT_DECL(IndexedFaceSet)
 
 	string toString();

source/blender/freestyle/intern/scene_graph/SceneVisitor.h

@@ -56,6 +56,7 @@ class NodeLight;
 class NodeCamera;
 class NodeDrawingStyle;
 class NodeTransform;
+class NodeSceneRenderLayer;
 
 class Rep;
 class LineRep;
@@ -87,6 +88,7 @@ public:
 	VISIT_COMPLETE_DEF(NodeCamera)
 	VISIT_COMPLETE_DEF(NodeDrawingStyle)
 	VISIT_COMPLETE_DEF(NodeTransform)
+	VISIT_COMPLETE_DEF(NodeSceneRenderLayer)
 
 	VISIT_COMPLETE_DEF(Rep)
 	VISIT_COMPLETE_DEF(LineRep)