Change RenderTarget global to be an internal swrenderer variable

src/d_main.cpp

@@ -694,8 +694,6 @@ void D_Display ()
 		}
 	}
 
-	RenderTarget = screen;
-
 	// change the view size if needed
 	if (setsizeneeded && StatusBar != NULL)
 	{

src/polyrenderer/poly_renderer.cpp

@@ -53,6 +53,8 @@ void PolyRenderer::RenderView(player_t *player)
 {
 	using namespace swrenderer;
 
+	swrenderer::RenderTarget = screen;
+
 	bool saved_swtruecolor = r_swtruecolor;
 	r_swtruecolor = screen->IsBgra();
 
@@ -82,7 +84,7 @@ void PolyRenderer::RenderViewToCanvas(AActor *actor, DCanvas *canvas, int x, int
 	const bool savedoutputformat = swrenderer::r_swtruecolor;
 
 	viewwidth = width;
-	RenderTarget = canvas;
+	swrenderer::RenderTarget = canvas;
 	swrenderer::bRenderingToCanvas = true;
 	R_SetWindow(12, width, height, height, true);
 	swrenderer::R_SWRSetWindow(12, width, height, height, WidescreenRatio);
@@ -97,7 +99,7 @@ void PolyRenderer::RenderViewToCanvas(AActor *actor, DCanvas *canvas, int x, int
 	
 	canvas->Unlock();
 
-	RenderTarget = screen;
+	swrenderer::RenderTarget = screen;
 	swrenderer::bRenderingToCanvas = false;
 	R_ExecuteSetViewSize();
 	float trueratio;
@@ -153,8 +155,8 @@ void PolyRenderer::RenderRemainingPlayerSprites()
 void PolyRenderer::ClearBuffers()
 {
 	PolyVertexBuffer::Clear();
-	PolyStencilBuffer::Instance()->Clear(RenderTarget->GetWidth(), RenderTarget->GetHeight(), 0);
-	PolySubsectorGBuffer::Instance()->Resize(RenderTarget->GetPitch(), RenderTarget->GetHeight());
+	PolyStencilBuffer::Instance()->Clear(swrenderer::RenderTarget->GetWidth(), swrenderer::RenderTarget->GetHeight(), 0);
+	PolySubsectorGBuffer::Instance()->Resize(swrenderer::RenderTarget->GetPitch(), swrenderer::RenderTarget->GetHeight());
 	NextStencilValue = 0;
 	SeenLinePortals.clear();
 	SeenMirrors.clear();
@@ -162,6 +164,8 @@ void PolyRenderer::ClearBuffers()
 
 void PolyRenderer::SetSceneViewport()
 {
+	using namespace swrenderer;
+
 	if (RenderTarget == screen) // Rendering to screen
 	{
 		int height;

src/polyrenderer/scene/poly_playersprite.cpp

@@ -165,12 +165,12 @@ void RenderPolyPlayerSprites::RenderSprite(DPSprite *sprite, AActor *owner, floa
 	double texturemid = (BaseYCenter - sy) * tex->Scale.Y + tex->TopOffset;
 
 	// Adjust PSprite for fullscreen views
-	if (camera->player && (RenderTarget != screen || viewheight == RenderTarget->GetHeight() || (RenderTarget->GetWidth() > (BaseXCenter * 2) && !st_scale)))
+	if (camera->player && (swrenderer::RenderTarget != screen || viewheight == swrenderer::RenderTarget->GetHeight() || (swrenderer::RenderTarget->GetWidth() > (BaseXCenter * 2) && !st_scale)))
 	{
 		AWeapon *weapon = dyn_cast<AWeapon>(sprite->GetCaller());
 		if (weapon != nullptr && weapon->YAdjust != 0)
 		{
-			if (RenderTarget != screen || viewheight == RenderTarget->GetHeight())
+			if (swrenderer::RenderTarget != screen || viewheight == swrenderer::RenderTarget->GetHeight())
 			{
 				texturemid -= weapon->YAdjust;
 			}
@@ -338,7 +338,7 @@ void RenderPolyPlayerSprites::RenderSprite(DPSprite *sprite, AActor *owner, floa
 
 	// Check for hardware-assisted 2D. If it's available, and this sprite is not
 	// fuzzy, don't draw it until after the switch to 2D mode.
-	if (!noaccel && RenderTarget == screen && (DFrameBuffer *)screen->Accel2D)
+	if (!noaccel && swrenderer::RenderTarget == screen && (DFrameBuffer *)screen->Accel2D)
 	{
 		FRenderStyle style = visstyle.RenderStyle;
 		style.CheckFuzz();

src/r_utility.cpp

@@ -100,8 +100,6 @@ CUSTOM_CVAR(Float, r_quakeintensity, 1.0f, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
 	else if (self > 1.f) self = 1.f;
 }
 
-DCanvas			*RenderTarget;		// [RH] canvas to render to
-
 int 			viewwindowx;
 int 			viewwindowy;
 
@@ -908,7 +906,7 @@ void R_SetupFrame (AActor *actor)
 
 	validcount++;
 
-	if (RenderTarget == screen && r_clearbuffer != 0)
+	if (r_clearbuffer != 0)
 	{
 		int color;
 		int hom = r_clearbuffer;

src/r_utility.h

@@ -12,8 +12,6 @@ class FSerializer;
 // There a 0-31, i.e. 32 LUT in the COLORMAP lump.
 #define NUMCOLORMAPS			32
 
-extern DCanvas			*RenderTarget;
-
 extern DVector3			ViewPos;
 extern DVector3			ViewActorPos;
 extern DAngle			ViewAngle;

src/swrenderer/r_swrenderer.cpp

@@ -244,18 +244,7 @@ void FSoftwareRenderer::OnModeSet ()
 
 void FSoftwareRenderer::ClearBuffer(int color)
 {
-	if (!r_swtruecolor)
-	{
-		memset(RenderTarget->GetBuffer(), color, RenderTarget->GetPitch() * RenderTarget->GetHeight());
-	}
-	else
-	{
-		uint32_t bgracolor = GPalette.BaseColors[color].d;
-		int size = RenderTarget->GetPitch() * RenderTarget->GetHeight();
-		uint32_t *dest = (uint32_t *)RenderTarget->GetBuffer();
-		for (int i = 0; i < size; i++)
-			dest[i] = bgracolor;
-	}
+	RenderScene::Instance()->SetClearColor(color);
 }
 
 void FSoftwareRenderer::RenderTextureView (FCanvasTexture *tex, AActor *viewpoint, int fov)

src/swrenderer/scene/r_scene.cpp

@@ -49,6 +49,7 @@
 #include "swrenderer/r_memory.h"
 
 EXTERN_CVAR(Bool, r_shadercolormaps)
+EXTERN_CVAR(Int, r_clearbuffer)
 
 namespace swrenderer
 {
@@ -60,8 +61,15 @@ namespace swrenderer
 		return &instance;
 	}
 
+	void RenderScene::SetClearColor(int color)
+	{
+		clearcolor = color;
+	}
+
 	void RenderScene::RenderView(player_t *player)
 	{
+		RenderTarget = screen;
+
 		int width = SCREENWIDTH;
 		int height = SCREENHEIGHT;
 		int stHeight = ST_Y;
@@ -75,6 +83,22 @@ namespace swrenderer
 			R_InitColumnDrawers();
 		}
 
+		if (r_clearbuffer != 0)
+		{
+			if (!r_swtruecolor)
+			{
+				memset(RenderTarget->GetBuffer(), clearcolor, RenderTarget->GetPitch() * RenderTarget->GetHeight());
+			}
+			else
+			{
+				uint32_t bgracolor = GPalette.BaseColors[clearcolor].d;
+				int size = RenderTarget->GetPitch() * RenderTarget->GetHeight();
+				uint32_t *dest = (uint32_t *)RenderTarget->GetBuffer();
+				for (int i = 0; i < size; i++)
+					dest[i] = bgracolor;
+			}
+		}
+
 		R_BeginDrawerCommands();
 
 		RenderActorView(player->mo);

src/swrenderer/scene/r_scene.h

@@ -31,6 +31,8 @@ namespace swrenderer
 		void Init();
 		void ScreenResized();
 		void Deinit();	
+
+		void SetClearColor(int color);
 		
 		void RenderActorView(AActor *actor, bool dontmaplines = false);
 		void RenderView(player_t *player);
@@ -40,5 +42,6 @@ namespace swrenderer
 
 	private:
 		bool dontmaplines = false;
+		int clearcolor = 0;
 	};
 }

src/swrenderer/scene/r_viewport.cpp

@@ -44,6 +44,7 @@ namespace swrenderer
 	double FocalLengthX;
 	double FocalLengthY;
 
+	DCanvas *RenderTarget;
 	bool bRenderingToCanvas;
 	double globaluclip, globaldclip;
 	double CenterX, CenterY;

src/swrenderer/scene/r_viewport.h

@@ -18,6 +18,7 @@
 
 namespace swrenderer
 {
+	extern DCanvas *RenderTarget;
 	extern bool bRenderingToCanvas;
 	extern fixed_t viewingrangerecip;
 	extern double FocalLengthX;