- moved the current portal pointer to HWDrawInfo so that the portal managed does not need to save and restore a global variable for each portal.

src/gl/renderer/gl_renderer.cpp

@@ -86,7 +86,6 @@ extern bool NoInterpolateView;
 FGLRenderer::FGLRenderer(OpenGLFrameBuffer *fb) 
 {
 	framebuffer = fb;
-	mCurrentPortal = nullptr;
 	mMirrorCount = 0;
 	mPlaneMirrorCount = 0;
 	mVBO = nullptr;

src/gl/renderer/gl_renderer.h

@@ -66,8 +66,6 @@ class FGLRenderer
 public:
 
 	OpenGLFrameBuffer *framebuffer;
-	//GLPortal *mClipPortal;
-	GLPortal *mCurrentPortal;
 	int mMirrorCount;
 	int mPlaneMirrorCount;
 	FShaderManager *mShaderManager;

src/gl/scene/gl_portal.cpp

@@ -213,14 +213,11 @@ bool GLPortal::Start(bool usestencil, bool doquery, HWDrawInfo *outer_di, HWDraw
 		}
 	}
 	*pDi = FDrawInfo::StartDrawInfo(outer_di->Viewpoint, &outer_di->VPUniforms);
+	(*pDi)->mCurrentPortal = this;
 
 	// save viewpoint
 	savedvisibility = outer_di->Viewpoint.camera ? outer_di->Viewpoint.camera->renderflags & RF_MAYBEINVISIBLE : ActorRenderFlags::FromInt(0);
 
-
-	PrevPortal = GLRenderer->mCurrentPortal;
-	GLRenderer->mCurrentPortal = this;
-
 	return true;
 }
 
@@ -263,7 +260,6 @@ void GLPortal::End(HWDrawInfo *di, bool usestencil)
 	bool needdepth = NeedDepthBuffer();
 
 	Clocker c(PortalAll);
-	GLRenderer->mCurrentPortal = PrevPortal;
 
 	di = static_cast<FDrawInfo*>(di)->EndDrawInfo();
 	di->ApplyVPUniforms();

src/gl/scene/gl_portal.h

@@ -53,7 +53,6 @@ private:
 	void DrawPortalStencil();
 
 	ActorRenderFlags savedvisibility;
-	GLPortal *PrevPortal;
 	TArray<unsigned int> mPrimIndices;
 
 protected:

src/gl/scene/gl_scene.cpp

@@ -130,7 +130,7 @@ void FDrawInfo::CreateScene()
 	PreparePlayerSprites(vp.sector, in_area);
 
 	// Process all the sprites on the current portal's back side which touch the portal.
-	if (GLRenderer->mCurrentPortal != NULL) GLRenderer->mCurrentPortal->RenderAttached(this);
+	if (mCurrentPortal != nullptr) mCurrentPortal->RenderAttached(this);
 	Bsp.Unclock();
 
 	// And now the crappy hacks that have to be done to avoid rendering anomalies.
@@ -414,7 +414,6 @@ void FDrawInfo::ProcessScene(bool toscreen)
 
 	int mapsection = R_PointInSubsector(Viewpoint.Pos)->mapsection;
 	CurrentMapSections.Set(mapsection);
-	GLRenderer->mCurrentPortal = nullptr;
 	DrawScene(toscreen ? DM_MAINVIEW : DM_OFFSCREEN);
 
 }

src/hwrenderer/scene/hw_drawinfo.cpp

@@ -95,6 +95,7 @@ void HWDrawInfo::ClearBuffers()
 	memset(&no_renderflags[0], 0, level.nodes.Size() * sizeof(no_renderflags[0]));
 
 	mClipPortal = nullptr;
+	mCurrentPortal = nullptr;
 }
 
 //==========================================================================

src/hwrenderer/scene/hw_drawinfo.h

@@ -99,6 +99,7 @@ struct HWDrawInfo
 	int FullbrightFlags;
 	std::atomic<int> spriteindex;
 	IPortal *mClipPortal;
+	IPortal *mCurrentPortal;
 	//FRotator mAngles;
 	IShadowMap *mShadowMap;
 	Clipper *mClipper;