- move PrepareTexture out of the inner drawer loops

src/swrenderer/line/r_renderdrawsegment.cpp

@@ -292,6 +292,7 @@ namespace swrenderer
 			// draw the columns one at a time
 			if (visible)
 			{
+				Thread->PrepareTexture(tex);
 				for (int x = x1; x < x2; ++x)
 				{
 					if (cameraLight->FixedColormap() == nullptr && cameraLight->FixedLightLevel() < 0)

src/swrenderer/plane/r_skyplane.cpp

@@ -163,6 +163,9 @@ namespace swrenderer
 			drawerargs.SetLight(&NormalLight, 0, 0);
 		}
 
+		Thread->PrepareTexture(frontskytex);
+		Thread->PrepareTexture(backskytex);
+
 		DrawSky(pl);
 	}
 

src/swrenderer/things/r_decal.cpp

@@ -301,6 +301,7 @@ namespace swrenderer
 
 			if (visible)
 			{
+				thread->PrepareTexture(WallSpriteTile);
 				while (x < x2)
 				{
 					if (calclighting)

src/swrenderer/things/r_playersprite.cpp

@@ -628,6 +628,7 @@ namespace swrenderer
 		short *mceilingclip = zeroarray;
 
 		fixed_t frac = startfrac;
+		thread->PrepareTexture(pic);
 		for (int x = x1; x < x2; x++)
 		{
 			drawerargs.DrawMaskedColumn(thread, x, iscale, pic, frac, spryscale, sprtopscreen, sprflipvert, mfloorclip, mceilingclip, false);

src/swrenderer/things/r_sprite.cpp

@@ -343,6 +343,7 @@ namespace swrenderer
 			{
 				RenderTranslucentPass *translucentPass = thread->TranslucentPass.get();
 
+				thread->PrepareTexture(tex);
 				while (x < x2)
 				{
 					if (!translucentPass->ClipSpriteColumnWithPortals(x, vis))

src/swrenderer/things/r_wallsprite.cpp

@@ -232,6 +232,7 @@ namespace swrenderer
 		{
 			RenderTranslucentPass *translucentPass = thread->TranslucentPass.get();
 
+			thread->PrepareTexture(WallSpriteTile);
 			while (x < x2)
 			{
 				if (calclighting)

src/swrenderer/viewport/r_skydrawer.cpp

@@ -36,7 +36,6 @@ namespace swrenderer
 
 	void SkyDrawerArgs::SetFrontTexture(RenderThread *thread, FTexture *texture, uint32_t column)
 	{
-		thread->PrepareTexture(texture);
 		if (thread->Viewport->RenderTarget->IsBgra())
 		{
 			dc_source = (const uint8_t *)texture->GetColumnBgra(column, nullptr);
@@ -51,7 +50,6 @@ namespace swrenderer
 
 	void SkyDrawerArgs::SetBackTexture(RenderThread *thread, FTexture *texture, uint32_t column)
 	{
-		thread->PrepareTexture(texture);
 		if (texture == nullptr)
 		{
 			dc_source2 = nullptr;

src/swrenderer/viewport/r_spritedrawer.cpp

@@ -62,8 +62,6 @@ namespace swrenderer
 		dc_iscale = iscale;
 		dc_textureheight = tex->GetHeight();
 
-		thread->PrepareTexture(tex);
-
 		const FTexture::Span *span;
 		const uint8_t *column;
 		if (viewport->RenderTarget->IsBgra() && !drawer_needs_pal_input)
@@ -134,8 +132,6 @@ namespace swrenderer
 		dc_x = x;
 		dc_iscale = iscale;
 
-		thread->PrepareTexture(tex);
-
 		// Normalize to 0-1 range:
 		double uv_stepd = FIXED2DBL(dc_iscale);
 		double v_step = uv_stepd / tex->GetHeight();