diff --git a/src/textures/bitmap.h b/src/textures/bitmap.h
index 51d857ac4..3219ecf34 100644
--- a/src/textures/bitmap.h
+++ b/src/textures/bitmap.h
@@ -90,6 +90,36 @@ public:
 		ClipRect.height = height;
 	}
 
+	FBitmap(const FBitmap &other) = delete;	// disallow because in nearly all cases this creates an unwanted copy.
+
+	FBitmap(FBitmap &&other)
+	{
+		data = other.data;
+		Pitch = other.Pitch;
+		Width = other.Width;
+		Height = other.Height;
+		FreeBuffer = other.FreeBuffer;
+		ClipRect = other.ClipRect;
+		other.data = nullptr;
+		other.FreeBuffer = false;
+	}
+
+	FBitmap &operator=(const FBitmap &other) = delete;	// disallow because in nearly all cases this creates an unwanted copy.
+
+	FBitmap &operator=(FBitmap &&other)
+	{
+		if (data != nullptr && FreeBuffer) delete[] data;
+		data = other.data;
+		Pitch = other.Pitch;
+		Width = other.Width;
+		Height = other.Height;
+		FreeBuffer = other.FreeBuffer;
+		ClipRect = other.ClipRect;
+		other.data = nullptr;
+		other.FreeBuffer = false;
+		return *this;
+	}
+
 	virtual ~FBitmap()
 	{
 		Destroy();
diff --git a/src/textures/formats/multipatchtexture.cpp b/src/textures/formats/multipatchtexture.cpp
index b546b44ac..7b0432bff 100644
--- a/src/textures/formats/multipatchtexture.cpp
+++ b/src/textures/formats/multipatchtexture.cpp
@@ -441,12 +441,10 @@ TArray<uint8_t> FMultiPatchTexture::MakeTexture (bool alphatex)
 	{
 		// In case there are translucent patches let's do the composition in
 		// True color to keep as much precision as possible before downconverting to the palette.
-		uint8_t *buffer = new uint8_t[Width * Height * 4];
-		memset(buffer, 0, Width * Height * 4);
-		FillBuffer(buffer, Width * 4, Height, TEX_RGB);
+		auto buffer = GetBgraBitmap(nullptr);
 		for(int y = 0; y < Height; y++)
 		{
-			uint8_t *in = buffer + Width * y * 4;
+			uint8_t *in = buffer.GetPixels() + Width * y * 4;
 			uint8_t *out = Pixels.Data() + y;
 			for (int x = 0; x < Width; x++)
 			{
@@ -458,7 +456,6 @@ TArray<uint8_t> FMultiPatchTexture::MakeTexture (bool alphatex)
 				in += 4;
 			}
 		}
-		delete [] buffer;
 	}
 	return Pixels;
 }
diff --git a/src/textures/texture.cpp b/src/textures/texture.cpp
index da2c0de03..e1630a11c 100644
--- a/src/textures/texture.cpp
+++ b/src/textures/texture.cpp
@@ -47,6 +47,7 @@
 #include "m_fixed.h"
 #include "hwrenderer/textures/hw_material.h"
 #include "hwrenderer/textures/hw_ihwtexture.h"
+#include "swrenderer/textures/r_swtexture.h"
 
 FTexture *CreateBrightmapTexture(FTexture*);
 
@@ -418,54 +419,6 @@ void FTexture::FlipNonSquareBlockRemap (uint8_t *dst, const uint8_t *src, int x,
 	}
 }
 
-//==========================================================================
-//
-// 
-//
-//==========================================================================
-
-void FTexture::FillBuffer(uint8_t *buff, int pitch, int height, FTextureFormat fmt)
-{
-	int x, y, w, h, stride;
-
-	w = GetWidth();
-	h = GetHeight();
-
-	switch (fmt)
-	{
-	case TEX_Pal:
-	case TEX_Gray:
-	{
-		auto ppix = Get8BitPixels(fmt == TEX_Gray);	// should use composition cache
-		auto pix = ppix.Data();
-		stride = pitch - w;
-		for (y = 0; y < h; ++y)
-		{
-			const uint8_t *pix2 = pix;
-			for (x = 0; x < w; ++x)
-			{
-				*buff++ = *pix2;
-				pix2 += h;
-			}
-			pix++;
-			buff += stride;
-		}
-		break;
-	}
-
-	case TEX_RGB:
-	{
-		FCopyInfo inf = {OP_OVERWRITE, BLEND_NONE, {0}, 0, 0};
-		FBitmap bmp(buff, pitch, pitch/4, height);
-		CopyTrueColorPixels(&bmp, 0, 0, 0, &inf); 
-		break;
-	}
-
-	default:
-		I_Error("FTexture::FillBuffer: Unsupported format %d", fmt);
-	}
-}
-
 //===========================================================================
 //
 // FTexture::CopyTrueColorPixels 
@@ -495,6 +448,15 @@ int FTexture::CopyTrueColorTranslated(FBitmap *bmp, int x, int y, int rotate, Pa
 	return 0;
 }
 
+FBitmap FTexture::GetBgraBitmap(PalEntry *remap)
+{
+	FBitmap bmp;
+	bmp.Create(GetWidth(), GetHeight());
+	if (!remap) CopyTrueColorPixels(&bmp, 0, 0, 0, nullptr);
+	else CopyTrueColorTranslated(&bmp, 0, 0, 0, remap, nullptr);
+	return bmp;
+}
+
 //==========================================================================
 //
 // 
@@ -729,14 +691,8 @@ void FTexture::GetGlowColor(float *data)
 {
 	if (bGlowing && GlowColor == 0)
 	{
-		int w = Width, h = Height;
-		auto buffer = new uint8_t[w * h * 4];
-		if (buffer)
-		{
-			FillBuffer(buffer, w * 4, h, TEX_RGB);
-			GlowColor = averageColor((uint32_t *)buffer, w*h, 153);
-			delete[] buffer;
-		}
+		auto buffer = GetBgraBitmap(nullptr);
+		GlowColor = averageColor((uint32_t*)buffer.GetPixels(), buffer.GetWidth() * buffer.GetHeight(), 153);
 
 		// Black glow equals nothing so switch glowing off
 		if (GlowColor == 0) bGlowing = false;
diff --git a/src/textures/textures.h b/src/textures/textures.h
index 811c9bede..10caf1bac 100644
--- a/src/textures/textures.h
+++ b/src/textures/textures.h
@@ -301,6 +301,7 @@ public:
 
 	// Returns the whole texture, stored in column-major order
 	virtual TArray<uint8_t> Get8BitPixels(bool alphatex);
+	/*virtual*/ FBitmap GetBgraBitmap(PalEntry *remap);
 
 public:
 	static void FlipSquareBlock (uint8_t *block, int x, int y);
@@ -395,8 +396,6 @@ protected:
 	// Returns the native pixel format for this image
 	virtual FTextureFormat GetFormat();
 
-	// Fill the native texture buffer with pixel data for this image
-	virtual void FillBuffer(uint8_t *buff, int pitch, int height, FTextureFormat fmt);
 	void SetSpeed(float fac) { shaderspeed = fac; }
 
 	int GetWidth () { return Width; }