- make the vertex buffer accessible from the hwrenderer code.

src/gl/data/gl_vertexbuffer.cpp

@@ -157,6 +157,7 @@ FFlatVertexBuffer::FFlatVertexBuffer(int width, int height)
 	mIndex = mCurIndex = 0;
 	mNumReserved = NUM_RESERVED;
 
+	mMap = map;
 	Map();
 	memcpy(map, &vbo_shadowdata[0], mNumReserved * sizeof(FFlatVertex));
 	Unmap();
@@ -215,7 +216,7 @@ void FFlatVertexBuffer::Map()
 		unsigned int bytesize = BUFFER_SIZE * sizeof(FFlatVertex);
 		glBindBuffer(GL_ARRAY_BUFFER, vbo_id);
 		gl_RenderState.ResetVertexBuffer();
-		map = (FFlatVertex*)glMapBufferRange(GL_ARRAY_BUFFER, 0, bytesize, GL_MAP_WRITE_BIT|GL_MAP_UNSYNCHRONIZED_BIT);
+		mMap = map = (FFlatVertex*)glMapBufferRange(GL_ARRAY_BUFFER, 0, bytesize, GL_MAP_WRITE_BIT|GL_MAP_UNSYNCHRONIZED_BIT);
 	}
 }
 
@@ -227,7 +228,7 @@ void FFlatVertexBuffer::Unmap()
 		glBindBuffer(GL_ARRAY_BUFFER, vbo_id);
 		gl_RenderState.ResetVertexBuffer();
 		glUnmapBuffer(GL_ARRAY_BUFFER);
-		map = nullptr;
+		mMap = map = nullptr;
 	}
 }
 

src/gl/data/gl_vertexbuffer.h

@@ -177,16 +177,6 @@ public:
 
 #endif
 
-	void CheckPlanes(sector_t *sector)
-	{
-		FFlatVertexGenerator::CheckPlanes(sector, map);
-	}
-
-	void CheckUpdate(sector_t *sector)
-	{
-		FFlatVertexGenerator::CheckUpdate(sector, map);
-	}
-
 	void Reset()
 	{
 		mCurIndex = mIndex;

src/gl/scene/gl_bsp.cpp

@@ -37,6 +37,7 @@
 #include "hwrenderer/scene/hw_drawinfo.h"
 #include "hwrenderer/scene/hw_portal.h"
 #include "hwrenderer/utility/hw_clock.h"
+#include "hwrenderer/data/flatvertices.h"
 
 
 EXTERN_CVAR(Bool, gl_render_segs)
@@ -452,7 +453,7 @@ void HWDrawInfo::DoSubsector(subsector_t * sub)
 
 	if (sector->validcount != validcount)
 	{
-		GLRenderer->mVBO->CheckUpdate(sector);
+		mVBO->CheckUpdate(sector);
 	}
 
 	// [RH] Add particles

src/gl/scene/gl_drawinfo.cpp

@@ -199,6 +199,7 @@ FDrawInfo *FDrawInfo::StartDrawInfo(GLSceneDrawer *drawer)
 {
 	FDrawInfo *di=di_list.GetNew();
 	di->mDrawer = drawer;
+	di->mVBO = GLRenderer->mVBO;
 	di->mClipper = &staticClipper;
 	staticClipper.Clear();
     di->FixedColormap = drawer->FixedColormap;

src/gl/scene/gl_portal.cpp

@@ -425,7 +425,7 @@ void GLPortal::End(bool usestencil)
 //-----------------------------------------------------------------------------
 void GLPortal::StartFrame()
 {
-	GLPortal * p=NULL;
+	GLPortal * p = nullptr;
 	portals.Push(p);
 	if (renderdepth == 0)
 	{

src/gl/scene/gl_scene.cpp

@@ -557,6 +557,7 @@ void GLSceneDrawer::ProcessScene(FDrawInfo *di, bool toscreen)
 
 	int mapsection = R_PointInSubsector(r_viewpoint.Pos)->mapsection;
 	di->CurrentMapSections.Set(mapsection);
+	GLRenderer->mCurrentPortal = nullptr;
 	DrawScene(di, toscreen ? DM_MAINVIEW : DM_OFFSCREEN);
 
 }

src/hwrenderer/data/flatvertices.cpp

@@ -233,13 +233,13 @@ void FFlatVertexGenerator::CreateFlatVertices()
 //
 //==========================================================================
 
-void FFlatVertexGenerator::UpdatePlaneVertices(sector_t *sec, int plane, FFlatVertex *map)
+void FFlatVertexGenerator::UpdatePlaneVertices(sector_t *sec, int plane)
 {
 	int startvt = sec->vboindex[plane];
 	int countvt = sec->vbocount[plane];
 	secplane_t &splane = sec->GetSecPlane(plane);
 	FFlatVertex *vt = &vbo_shadowdata[startvt];
-	FFlatVertex *mapvt = &map[startvt];
+	FFlatVertex *mapvt = &mMap[startvt];
 	for(int i=0; i<countvt; i++, vt++, mapvt++)
 	{
 		vt->z = (float)splane.ZatPoint(vt->x, vt->y);
@@ -266,16 +266,16 @@ void FFlatVertexGenerator::CreateVertices()
 //
 //==========================================================================
 
-void FFlatVertexGenerator::CheckPlanes(sector_t *sector, FFlatVertex *map)
+void FFlatVertexGenerator::CheckPlanes(sector_t *sector)
 {
 	if (sector->GetPlaneTexZ(sector_t::ceiling) != sector->vboheight[sector_t::ceiling])
 	{
-		UpdatePlaneVertices(sector, sector_t::ceiling, map);
+		UpdatePlaneVertices(sector, sector_t::ceiling);
 		sector->vboheight[sector_t::ceiling] = sector->GetPlaneTexZ(sector_t::ceiling);
 	}
 	if (sector->GetPlaneTexZ(sector_t::floor) != sector->vboheight[sector_t::floor])
 	{
-		UpdatePlaneVertices(sector, sector_t::floor, map);
+		UpdatePlaneVertices(sector, sector_t::floor);
 		sector->vboheight[sector_t::floor] = sector->GetPlaneTexZ(sector_t::floor);
 	}
 }
@@ -287,11 +287,11 @@ void FFlatVertexGenerator::CheckPlanes(sector_t *sector, FFlatVertex *map)
 //
 //==========================================================================
 
-void FFlatVertexGenerator::CheckUpdate(sector_t *sector, FFlatVertex *map)
+void FFlatVertexGenerator::CheckUpdate(sector_t *sector)
 {
-	CheckPlanes(sector, map);
+	CheckPlanes(sector);
 	sector_t *hs = sector->GetHeightSec();
-	if (hs != NULL) CheckPlanes(hs, map);
+	if (hs != NULL) CheckPlanes(hs);
 	for (unsigned i = 0; i < sector->e->XFloor.ffloors.Size(); i++)
-		CheckPlanes(sector->e->XFloor.ffloors[i]->model, map);
+		CheckPlanes(sector->e->XFloor.ffloors[i]->model);
 }

src/hwrenderer/data/flatvertices.h

@@ -45,10 +45,9 @@ class FFlatVertexGenerator
 {
 protected:
 	TArray<FFlatVertex> vbo_shadowdata;
+	FFlatVertex *mMap;
 
 
-	void CheckPlanes(sector_t *sector);
-
 public:
 	enum
 	{
@@ -70,12 +69,12 @@ private:
 	int CreateSectorVertices(sector_t *sec, const secplane_t &plane, int floor);
 	int CreateVertices(int h, sector_t *sec, const secplane_t &plane, int floor);
 	void CreateFlatVertices();
-	void UpdatePlaneVertices(sector_t *sec, int plane, FFlatVertex *map);
+	void UpdatePlaneVertices(sector_t *sec, int plane);
 protected:
 	void CreateVertices();
-	void CheckPlanes(sector_t *sector, FFlatVertex *map);
+	void CheckPlanes(sector_t *sector);
-	void CheckUpdate(sector_t *sector, FFlatVertex *map);
+public:
-
+	void CheckUpdate(sector_t *sector);
 };
 
 #endif

src/hwrenderer/scene/hw_drawinfo.h

@@ -3,6 +3,7 @@
 #include <atomic>
 #include "r_defs.h"
 
+
 struct FSectorPortalGroup;
 struct FLinePortalSpan;
 struct FFlatVertex;
@@ -16,6 +17,7 @@ struct FDynLightData;
 struct HUDSprite;
 class Clipper;
 class IPortal;
+class FFlatVertexGenerator;
 
 //==========================================================================
 //
@@ -107,9 +109,11 @@ struct HWDrawInfo
 	TArray<uint8_t> ss_renderflags;
 	TArray<uint8_t> no_renderflags;
 
+	// This is needed by the BSP traverser.
 	BitArray CurrentMapSections;	// this cannot be a single number, because a group of portals with the same displacement may link different sections.
 	area_t	in_area;
 	fixed_t viewx, viewy;	// since the nodes are still fixed point, keeping the view position  also fixed point for node traversal is faster.
+	FFlatVertexGenerator *mVBO;	// this class needs access because the sector vertex updating is part of BSP traversal.
 
 
 private:

src/hwrenderer/scene/hw_portal.h

@@ -36,7 +36,7 @@ struct GLHorizonInfo
 class IPortal
 {
 public:
-	virtual ~IPortal();
+	virtual ~IPortal() {}
 	virtual int ClipSeg(seg_t *seg) { return PClip_Inside; }
 	virtual int ClipSubsector(subsector_t *sub) { return PClip_Inside; }
 	virtual int ClipPoint(const DVector2 &pos) { return PClip_Inside; }