- moved most of gl_setup.cpp to r_data as this is only some data setup in the main map data structures.

- made currentmapsections array something nicer to look at and made it a member of the scene drawer class.

src/CMakeLists.txt

@@ -1043,7 +1043,6 @@ set (PCH_SOURCES
 	g_statusbar/sbar_mugshot.cpp
 	g_statusbar/shared_sbar.cpp
 	gl/compatibility/gl_20.cpp
-	gl/data/gl_setup.cpp
 	gl/data/gl_vertexbuffer.cpp
 	gl/dynlights/gl_glow.cpp
 	gl/dynlights/gl_lightbuffer.cpp
@@ -1150,6 +1149,7 @@ set (PCH_SOURCES
 	r_data/sprites.cpp
 	r_data/portalgroups.cpp
 	r_data/voxels.cpp
+	r_data/renderinfo.cpp
 	r_data/renderstyle.cpp
 	r_data/r_interpolate.cpp
 	r_data/r_vanillatrans.cpp

src/g_levellocals.h

@@ -91,6 +91,7 @@ struct FLevelLocals
 	TArray<FLinePortal*> linkedPortals;	// only the linked portals, this is used to speed up looking for them in P_CollectConnectedGroups.
 	TArray<FSectorPortalGroup *> portalGroups;	
 	TArray<FLinePortalSpan> linePortalSpans;
+	int NumMapSections;
 
 	TArray<zone_t>	Zones;
 

src/gl/data/gl_data.h

@@ -17,9 +17,4 @@ inline	int getExtraLight()
 	return r_viewpoint.extralight * gl_weaponlight;
 }
 
-
-struct GLSectorStackPortal;
-
-extern TArray<uint8_t> currentmapsection;
-
 #endif

src/gl/scene/gl_bsp.cpp

@@ -423,7 +423,7 @@ void GLSceneDrawer::DoSubsector(subsector_t * sub)
 	if (!sector) return;
 
 	// If the mapsections differ this subsector can't possibly be visible from the current view point
-	if (!(currentmapsection[sub->mapsection>>3] & (1 << (sub->mapsection & 7)))) return;
+	if (!CurrentMapSections[sub->mapsection]) return;
 	if (sub->flags & SSECF_POLYORG) return;	// never render polyobject origin subsectors because their vertices no longer are where one may expect.
 
 	if (gl_drawinfo->ss_renderflags[sub->Index()] & SSRF_SEEN)

src/gl/scene/gl_portal.cpp

@@ -579,20 +579,22 @@ GLPortal * GLPortal::FindPortal(const void * src)
 
 //-----------------------------------------------------------------------------
 //
+// Save/RestoreMapSection
 //
+// saves CurrentMapSection for a recursive call of SceneDrawer::DrawScene
 //
 //-----------------------------------------------------------------------------
 
 void GLPortal::SaveMapSection()
 {
-	savedmapsection.Resize(currentmapsection.Size());
+	SavedMapSection = std::move(drawer->CurrentMapSections);
-	memcpy(&savedmapsection[0], &currentmapsection[0], currentmapsection.Size());
+	drawer->CurrentMapSections.Resize(SavedMapSection.Size());
-	memset(&currentmapsection[0], 0, currentmapsection.Size());
+	drawer->CurrentMapSections.Zero();
 }
 
 void GLPortal::RestoreMapSection()
 {
-	memcpy(&currentmapsection[0], &savedmapsection[0], currentmapsection.Size());
+	drawer->CurrentMapSections = std::move(SavedMapSection);
 }
 
 //-----------------------------------------------------------------------------
@@ -650,7 +652,7 @@ void GLSkyboxPortal::DrawContents()
 	int mapsection = R_PointInSubsector(r_viewpoint.Pos)->mapsection;
 
 	SaveMapSection();
-	currentmapsection[mapsection >> 3] |= 1 << (mapsection & 7);
+	drawer->CurrentMapSections.Set(mapsection);
 
 	drawer->DrawScene(DM_SKYPORTAL);
 	portal->mFlags &= ~PORTSF_INSKYBOX;
@@ -732,7 +734,7 @@ void GLSectorStackPortal::SetupCoverage()
 		for(int j=0;j<sub->portalcoverage[plane].sscount; j++)
 		{
 			subsector_t *dsub = &::level.subsectors[sub->portalcoverage[plane].subsectors[j]];
-			currentmapsection[dsub->mapsection>>3] |= 1 << (dsub->mapsection&7);
+			drawer->CurrentMapSections.Set(dsub->mapsection);
 			gl_drawinfo->ss_renderflags[dsub->Index()] |= SSRF_SEEN;
 		}
 	}
@@ -1055,8 +1057,7 @@ void GLLineToLinePortal::DrawContents()
 		if (line->sidedef[0]->Flags & WALLF_POLYOBJ) 
 			sub = R_PointInSubsector(line->v1->fixX(), line->v1->fixY());
 		else sub = line->frontsector->subsectors[0];
-		int mapsection = sub->mapsection;
+		drawer->CurrentMapSections.Set(sub->mapsection);
-		currentmapsection[mapsection >> 3] |= 1 << (mapsection & 7);
 	}
 
 	GLRenderer->mViewActor = nullptr;

src/gl/scene/gl_portal.h

@@ -109,7 +109,7 @@ private:
 	ActorRenderFlags savedvisibility;
 	GLPortal *PrevPortal;
 	GLPortal *PrevClipPortal;
-	TArray<uint8_t> savedmapsection;
+	BitArray SavedMapSection;
 	TArray<unsigned int> mPrimIndices;
 
 protected:

src/gl/scene/gl_scene.cpp

@@ -88,7 +88,6 @@ EXTERN_CVAR (Bool, r_drawvoxels)
 extern bool NoInterpolateView;
 
 area_t			in_area;
-TArray<uint8_t> currentmapsection;
 int camtexcount;
 
 //-----------------------------------------------------------------------------
@@ -737,8 +736,9 @@ void GLSceneDrawer::ProcessScene(bool toscreen)
 	GLPortal::BeginScene();
 
 	int mapsection = R_PointInSubsector(r_viewpoint.Pos)->mapsection;
-	memset(&currentmapsection[0], 0, currentmapsection.Size());
+	CurrentMapSections.Resize(level.NumMapSections);
-	currentmapsection[mapsection>>3] |= 1 << (mapsection & 7);
+	CurrentMapSections.Zero();
+	CurrentMapSections.Set(mapsection);
 	DrawScene(toscreen ? DM_MAINVIEW : DM_OFFSCREEN);
 	FDrawInfo::EndDrawInfo();
 
@@ -1129,10 +1129,12 @@ void FGLInterface::RenderTextureView (FCanvasTexture *tex, AActor *Viewpoint, do
 // 
 //
 //===========================================================================
-void gl_PreprocessLevel();
 void FGLInterface::PreprocessLevel() 
 {
-	gl_PreprocessLevel();
+	if (GLRenderer != NULL) 
+	{
+		GLRenderer->SetupLevel();
+	}
 }
 
 uint32_t FGLInterface::GetCaps()

src/gl/scene/gl_scenedrawer.h

@@ -45,6 +45,7 @@ public:
 	Clipper clipper;
 	int		FixedColormap;
 	area_t	in_area;
+	BitArray CurrentMapSections;	// this cannot be a single number, because a group of portals with the same displacement may link different sections.
 
 	angle_t FrustumAngle();
 	void SetViewMatrix(float vx, float vy, float vz, bool mirror, bool planemirror);

src/gl/scene/gl_sprite.cpp

@@ -721,7 +721,7 @@ void GLSprite::Process(AActor* thing, sector_t * sector, int thruportal)
 	}
 
 	// If this thing is in a map section that's not in view it can't possibly be visible
-	if (!thruportal && !(currentmapsection[thing->subsector->mapsection >> 3] & (1 << (thing->subsector->mapsection & 7)))) return;
+	if (!thruportal && !mDrawer->CurrentMapSections[thing->subsector->mapsection]) return;
 
 	// [RH] Interpolate the sprite's position to make it look smooth
 	DVector3 thingpos = thing->InterpolatedPosition(r_viewpoint.TicFrac);

src/p_setup.cpp

@@ -129,6 +129,7 @@ void P_SetSlopes ();
 void P_CopySlopes();
 void BloodCrypt (void *data, int key, int len);
 void P_ClearUDMFKeys();
+void InitRenderInfo();
 
 extern AActor *P_SpawnMapThing (FMapThing *mthing, int position);
 
@@ -4120,6 +4121,7 @@ void P_SetupLevel (const char *lumpname, int position)
 	}
 
 	// This must be done BEFORE the PolyObj Spawn!!!
+	InitRenderInfo();
 	Renderer->PreprocessLevel();
 	InitPortalGroups();
 

src/r_data/renderinfo.cpp

@@ -21,8 +21,8 @@
 //
 /*
 ** gl_setup.cpp
-** Initializes the data structures required by the GL renderer to handle
+** Initializes the data structures required by the hardware renderer to handle
-** a level
+** render hacks and optimization.
 **
 **/
 
@@ -42,13 +42,6 @@
 #include "g_level.h"
 #include "g_levellocals.h"
 
-#include "gl/renderer/gl_renderer.h"
-#include "gl/data/gl_data.h"
-#include "gl/data/gl_vertexbuffer.h"
-#include "gl/dynlights/gl_dynlight.h"
-#include "gl/dynlights/gl_glow.h"
-#include "gl/utility/gl_clock.h"
-
 //==========================================================================
 //
 // Map section generation
@@ -208,7 +201,7 @@ struct MapSectionGenerator
 		}
 		while (set);
 		num = MergeMapSections(num);
-		currentmapsection.Resize(1 + num/8);
+		level.NumMapSections = num;
 	#ifdef DEBUG
 		Printf("%d map sections found\n", num);
 	#endif
@@ -544,7 +537,7 @@ static void PrepareSegs()
 //
 //==========================================================================
 
-void gl_PreprocessLevel()
+void InitRenderInfo()
 {
 	PrepareSegs();
 	PrepareSectorData();
@@ -581,11 +574,6 @@ void gl_PreprocessLevel()
 	}
 	delete[] checkmap;
 
-	if (GLRenderer != NULL) 
-	{
-		GLRenderer->SetupLevel();
-	}
-
 #if 0
 	gl_CreateSections();
 #endif

src/tarray.h

@@ -1259,3 +1259,74 @@ public:
 		Clear();
 	}
 };
+
+
+class BitArray
+{
+	TArray<uint8_t> bytes;
+	unsigned size;
+
+public:
+	void Resize(unsigned elem)
+	{
+		bytes.Resize((elem + 7) / 8);
+		size = elem;
+	}
+
+	BitArray() : size(0)
+	{
+	}
+
+	BitArray(const BitArray & arr)
+	{
+		bytes = arr.bytes;
+		size = arr.size;
+	}
+
+	BitArray &operator=(const BitArray & arr)
+	{
+		bytes = arr.bytes;
+		size = arr.size;
+		return *this;
+	}
+
+	BitArray(BitArray && arr)
+	{
+		bytes = std::move(arr.bytes);
+		size = arr.size;
+		arr.size = 0;
+	}
+
+	BitArray &operator=(BitArray && arr)
+	{
+		bytes = std::move(arr.bytes);
+		size = arr.size;
+		arr.size = 0;
+		return *this;
+	}
+
+	bool operator[](size_t index) const
+	{
+		return !!(bytes[index >> 3] & (1 << (index & 7)));
+	}
+
+	void Set(size_t index)
+	{
+		bytes[index >> 3] |= (1 << (index & 7));
+	}
+
+	void Clear(size_t index)
+	{
+		bytes[index >> 3] &= ~(1 << (index & 7));
+	}
+
+	unsigned Size() const
+	{
+		return size;
+	}
+
+	void Zero()
+	{
+		memset(&bytes[0], 0, bytes.Size());
+	}
+};