BGE 2D Filters: filters run per scene now (fix for [#18152]) - it (slightly) breaks backward compatibility !!!

Originally we had 2DFilters (m_filtermanager) stored in RenderTools. That way filters were stored globally and were being called once per each scene. This was producing two big problems: (1) performance and (2) flexibility of use.

(1) Performance - To run the filters 2X == 2X slower
(2) flexibility of use - Very often we want the filter in the scene but not in the UI for example.

For those reasons I believe that 2DFilters with multiple scenes was very useless or unpredictable. I hope they work fine now.
To make it work as before (2.4) you can simply recreate the 2dfilter actuators across the scenes.

* * * * *

Imagine that we have:
(a) Main Scene
(b) Overlay Scene

in Main Scene the Z Buffer and RGB will be from the main scene.
in Overlay Scene the Z Buffer will be from the Overlay Scene and the RBG buffer is from both [(a + 2D Filter) + b].

So in pseudo code if we have a,b,c,d,e scenes we have: (2DFilterE(2DFilterD(2DFilterC(2DFilterB(2DFilterA(a) + b) + c) + d) + e)

source/blender/editors/screen/screen_ops.c

@@ -2246,7 +2246,6 @@ static void SCREEN_OT_region_flip(wmOperatorType *ot)
 	
 	/* api callbacks */
 	ot->exec= region_flip_exec;
-	
 	ot->poll= ED_operator_areaactive;
 	ot->flag= 0;
 }

source/gameengine/BlenderRoutines/KX_BlenderRenderTools.cpp

@@ -379,13 +379,3 @@ void KX_BlenderRenderTools::MotionBlur(RAS_IRasterizer* rasterizer)
 		}
 	}
 }
-
-void KX_BlenderRenderTools::Update2DFilter(vector<STR_String>& propNames, void* gameObj, RAS_2DFilterManager::RAS_2DFILTER_MODE filtermode, int pass, STR_String& text)
-{
-	m_filtermanager.EnableFilter(propNames, gameObj, filtermode, pass, text);
-}
-
-void KX_BlenderRenderTools::Render2DFilters(RAS_ICanvas* canvas)
-{
-	m_filtermanager.RenderFilters(canvas);
-}

source/gameengine/BlenderRoutines/KX_BlenderRenderTools.h

@@ -94,10 +94,6 @@ public:
 
 	virtual void MotionBlur(RAS_IRasterizer* rasterizer);
 
-	virtual void Update2DFilter(vector<STR_String>& propNames, void* gameObj, RAS_2DFilterManager::RAS_2DFILTER_MODE filtermode, int pass, STR_String& text);
-
-	virtual	void Render2DFilters(RAS_ICanvas* canvas);
-
 	virtual void SetClientObject(RAS_IRasterizer *rasty, void* obj);
 	
 	

source/gameengine/Converter/KX_ConvertActuators.cpp

@@ -969,7 +969,7 @@ void BL_ConvertActuators(char* maggiename,
 			}
             
 			tmp = new SCA_2DFilterActuator(gameobj, filtermode, _2dfilter->flag,
-				_2dfilter->float_arg,_2dfilter->int_arg,ketsjiEngine->GetRasterizer(),rendertools);
+				_2dfilter->float_arg,_2dfilter->int_arg,ketsjiEngine->GetRasterizer(),scene);
 
 			if (_2dfilter->text)
 			{

source/gameengine/GameLogic/CMakeLists.txt

@@ -32,6 +32,7 @@ SET(INC
 	../../../intern/string
 	../../../source/gameengine/Expressions 
 	../../../source/gameengine/SceneGraph
+	../../../source/gameengine/Ketsji
 	../../../intern/moto/include
 	../../../source/gameengine/Rasterizer
 )

source/gameengine/GameLogic/Makefile

@@ -41,6 +41,7 @@ CCFLAGS += $(LEVEL_1_CPP_WARNINGS)
 CPPFLAGS += -I../Expressions 
 CPPFLAGS += -I../SceneGraph
 CPPFLAGS += -I../Rasterizer
+CPPFLAGS += -I../Ketsji
 CPPFLAGS += -I$(NAN_STRING)/include    
 CPPFLAGS += -I$(NAN_MOTO)/include
 CPPFLAGS += -I../../blender/makesdna

source/gameengine/GameLogic/SCA_2DFilterActuator.cpp

@@ -42,14 +42,14 @@ SCA_2DFilterActuator::SCA_2DFilterActuator(
 		float float_arg,
 		int int_arg,
 		RAS_IRasterizer* rasterizer,
-		RAS_IRenderTools* rendertools)
+		KX_Scene* scene)
     : SCA_IActuator(gameobj, KX_ACT_2DFILTER),
      m_type(type),
 	 m_disableMotionBlur(flag),
 	 m_float_arg(float_arg),
 	 m_int_arg(int_arg),
 	 m_rasterizer(rasterizer),
-	 m_rendertools(rendertools)
+	 m_scene(scene)
 {
 	m_gameObj = NULL;
 	if(gameobj){
@@ -87,7 +87,7 @@ bool SCA_2DFilterActuator::Update()
 	}
 	else if(m_type < RAS_2DFilterManager::RAS_2DFILTER_NUMBER_OF_FILTERS)
 	{
-		m_rendertools->Update2DFilter(m_propNames, m_gameObj, m_type, m_int_arg, m_shaderText);
+		m_scene->Update2DFilter(m_propNames, m_gameObj, m_type, m_int_arg, m_shaderText);
 	}
 	// once the filter is in place, no need to update it again => disable the actuator
     return false;

source/gameengine/GameLogic/SCA_2DFilterActuator.h

@@ -29,8 +29,8 @@
 #define __SCA_2DFILETRACTUATOR_H__
 
 #include "RAS_IRasterizer.h"
-#include "RAS_IRenderTools.h"
 #include "SCA_IActuator.h"
+#include "KX_Scene.h"
 
 class SCA_2DFilterActuator : public SCA_IActuator
 {
@@ -45,7 +45,7 @@ private:
 	int   m_int_arg;
 	STR_String	m_shaderText;
 	RAS_IRasterizer* m_rasterizer;
-	RAS_IRenderTools* m_rendertools;
+	KX_Scene* m_scene;
 
 public:
 
@@ -56,7 +56,7 @@ public:
 		float float_arg,
 		int int_arg,
 		RAS_IRasterizer* rasterizer,
-		RAS_IRenderTools* rendertools);
+		KX_Scene* scene);
 
 	void	SetShaderText(const char *text);
     virtual ~SCA_2DFilterActuator();

source/gameengine/GameLogic/SConscript

@@ -6,6 +6,7 @@ sources = env.Glob('*.cpp') + env.Glob('Joystick/*.cpp')
 incs = '. #/source/kernel/gen_system #/intern/string'
 incs += ' #/source/gameengine/Expressions #/intern/moto/include'
 incs += ' #/source/gameengine/Rasterizer #/source/gameengine/SceneGraph'
+incs += ' #/source/gameengine/Ketsji'
 
 defs = []
 

source/gameengine/GamePlayer/common/GPC_RenderTools.cpp

@@ -433,13 +433,3 @@ void GPC_RenderTools::MotionBlur(RAS_IRasterizer* rasterizer)
 	}
 }
 
-void GPC_RenderTools::Update2DFilter(vector<STR_String>& propNames, void* gameObj, RAS_2DFilterManager::RAS_2DFILTER_MODE filtermode, int pass, STR_String& text)
-{
-	m_filtermanager.EnableFilter(propNames, gameObj, filtermode, pass, text);
-}
-
-void GPC_RenderTools::Render2DFilters(RAS_ICanvas* canvas)
-{
-	m_filtermanager.RenderFilters(canvas);
-}
-

source/gameengine/GamePlayer/common/GPC_RenderTools.h

@@ -94,10 +94,6 @@ public:
 
 	virtual void MotionBlur(RAS_IRasterizer* rasterizer);
 
-	virtual void Update2DFilter(vector<STR_String>& propNames, void* gameObj, RAS_2DFilterManager::RAS_2DFILTER_MODE filtermode, int pass, STR_String& text);
-
-	virtual	void Render2DFilters(RAS_ICanvas* canvas);
-
 	virtual void SetClientObject(RAS_IRasterizer *rasty, void* obj);
 };
 

source/gameengine/Ketsji/KX_KetsjiEngine.cpp

@@ -334,6 +334,11 @@ void KX_KetsjiEngine::RenderDome()
 				
 				it++;
 			}
+			// Part of PostRenderScene()
+			m_rendertools->MotionBlur(m_rasterizer);
+			scene->Render2DFilters(m_canvas);
+			// no RunDrawingCallBacks
+			// no FlushDebugLines
 		}
 		m_dome->BindImages(i);
 	}	
@@ -362,11 +367,7 @@ void KX_KetsjiEngine::RenderDome()
 			1.0
 			);
 	}
-
 	m_dome->Draw();
-
-	// run the 2dfilters and motion blur once for all the scenes
-	PostRenderFrame();
 	EndFrame();
 }
 
@@ -859,6 +860,7 @@ void KX_KetsjiEngine::Render()
 			
 			it++;
 		}
+		PostRenderScene(scene);
 	}
 
 	// only one place that checks for stereo
@@ -908,6 +910,7 @@ void KX_KetsjiEngine::Render()
 				
 				it++;
 			}
+			PostRenderScene(scene);
 		}
 	} // if(m_rasterizer->Stereo())
 
@@ -1313,20 +1316,16 @@ void KX_KetsjiEngine::RenderFrame(KX_Scene* scene, KX_Camera* cam)
 	
 	if (scene->GetPhysicsEnvironment())
 		scene->GetPhysicsEnvironment()->debugDrawWorld();
-	
-	m_rasterizer->FlushDebugLines();
-
-	//it's running once for every scene (i.e. overlay scenes have  it running twice). That's not the ideal.
-	PostRenderFrame();
-
-	// Run any post-drawing python callbacks
-	scene->RunDrawingCallbacks(scene->GetPostDrawCB());	
 }
-
+/*
-void KX_KetsjiEngine::PostRenderFrame()
+To run once per scene
+*/
+void KX_KetsjiEngine::PostRenderScene(KX_Scene* scene)
 {
-	m_rendertools->Render2DFilters(m_canvas);
 	m_rendertools->MotionBlur(m_rasterizer);
+	scene->Render2DFilters(m_canvas);
+	scene->RunDrawingCallbacks(scene->GetPostDrawCB());	
+	m_rasterizer->FlushDebugLines();
 }
 
 void KX_KetsjiEngine::StopEngine()

source/gameengine/Ketsji/KX_KetsjiEngine.h

@@ -185,7 +185,7 @@ private:
 	float					m_overrideFrameColorB;
 
 	void					RenderFrame(KX_Scene* scene, KX_Camera* cam);
-	void					PostRenderFrame();
+	void					PostRenderScene(KX_Scene* scene);
 	void					RenderDebugProperties();
 	void					RenderShadowBuffers(KX_Scene *scene);
 	void					SetBackGround(KX_WorldInfo* worldinfo);

source/gameengine/Ketsji/KX_Scene.cpp

@@ -1842,6 +1842,16 @@ bool KX_Scene::MergeScene(KX_Scene *other)
 	return true;
 }
 
+void KX_Scene::Update2DFilter(vector<STR_String>& propNames, void* gameObj, RAS_2DFilterManager::RAS_2DFILTER_MODE filtermode, int pass, STR_String& text)
+{
+	m_filtermanager.EnableFilter(propNames, gameObj, filtermode, pass, text);
+}
+
+void KX_Scene::Render2DFilters(RAS_ICanvas* canvas)
+{
+	m_filtermanager.RenderFilters(canvas);
+}
+
 //----------------------------------------------------------------------------
 //Python
 

source/gameengine/Ketsji/KX_Scene.h

@@ -46,6 +46,7 @@
 #include "RAS_Rect.h"
 
 #include "PyObjectPlus.h"
+#include "RAS_2DFilterManager.h"
 
 /**
  * @section Forward declarations
@@ -273,6 +274,7 @@ protected:
 
 	struct Scene* m_blenderScene;
 
+	RAS_2DFilterManager m_filtermanager;
 public:	
 	KX_Scene(class SCA_IInputDevice* keyboarddevice,
 		class SCA_IInputDevice* mousedevice,
@@ -535,6 +537,12 @@ public:
 	 */
 	void SetNodeTree(SG_Tree* root);
 
+	/**
+	* 2D Filters
+	*/
+	void Update2DFilter(vector<STR_String>& propNames, void* gameObj, RAS_2DFilterManager::RAS_2DFILTER_MODE filtermode, int pass, STR_String& text);
+	void Render2DFilters(RAS_ICanvas* canvas);
+
 #ifndef DISABLE_PYTHON
 	/* --------------------------------------------------------------------- */
 	/* Python interface ---------------------------------------------------- */

source/gameengine/Rasterizer/CMakeLists.txt

@@ -31,6 +31,7 @@ SET(INC
 	../../../source/kernel/gen_system
 	../../../source/blender/makesdna
 	../../../source/gameengine/SceneGraph
+	../../../source/gameengine/Ketsji
 	../../../intern/string
 	../../../intern/moto/include
 	../../../extern/glew/include

source/gameengine/Rasterizer/Makefile

@@ -45,6 +45,7 @@ CPPFLAGS += -I../../blender/makesdna
 CPPFLAGS += -I../SceneGraph
 CPPFLAGS += -I../BlenderRoutines
 CPPFLAGS += -I../Expressions
+CPPFLAGS += -I../Ketsji
 
 CPPFLAGS += -I$(NAN_PYTHON)/include/python$(NAN_PYTHON_VERSION)
 

source/gameengine/Rasterizer/RAS_2DFilterManager.h

@@ -28,6 +28,7 @@
 #ifndef __RAS_I2DFILTER
 #define __RAS_I2DFILTER
 
+#include "RAS_ICanvas.h"
 #define MAX_RENDER_PASS	100
 
 #ifdef WITH_CXX_GUARDEDALLOC

source/gameengine/Rasterizer/RAS_IRenderTools.h

@@ -176,14 +176,6 @@ public:
 	virtual
 		void
 	MotionBlur(RAS_IRasterizer* rasterizer)=0;
-
-	virtual
-		void
-		Update2DFilter(vector<STR_String>& propNames, void* gameObj, RAS_2DFilterManager::RAS_2DFILTER_MODE filtermode, int pass, STR_String& text)=0;
-
-	virtual
-		void
-		Render2DFilters(RAS_ICanvas* canvas)=0;
 		
 		
 #ifdef WITH_CXX_GUARDEDALLOC