- allocate the sprite positioning info on demand only.

For most textures this is never needed and it can easily be put in the memory arena being used for image sources.

src/common/textures/image.cpp

@@ -41,7 +41,7 @@
 #include "cmdlib.h"
 #include "palettecontainer.h"
 
-FMemArena FImageSource::ImageArena(32768);
+FMemArena ImageArena(32768);
 TArray<FImageSource *>FImageSource::ImageForLump;
 int FImageSource::NextID;
 static PrecacheInfo precacheInfo;

src/common/textures/image.h

@@ -7,6 +7,7 @@
 
 class FImageSource;
 using PrecacheInfo = TMap<int, std::pair<int, int>>;
+extern FMemArena ImageArena;
 
 // Doom patch format header
 struct patch_t
@@ -38,7 +39,6 @@ class FImageSource
 	friend class FBrightmapTexture;
 protected:
 
-	static FMemArena ImageArena;
 	static TArray<FImageSource *>ImageForLump;
 	static int NextID;
 

src/common/textures/texture.cpp

@@ -737,29 +737,6 @@ TArray<uint8_t> FTexture::Get8BitPixels(bool alphatex)
 	return Pixels;
 }
 
-//===========================================================================
-// 
-// Sets up the sprite positioning data for this texture
-//
-//===========================================================================
-
-void FTexture::SetupSpriteData()
-{
-	spi.mSpriteU[0] = spi.mSpriteV[0] = 0.f;
-	spi.mSpriteU[1] = spi.mSpriteV[1] = 1.f;
-	spi.spriteWidth = GetTexelWidth();
-	spi.spriteHeight = GetTexelHeight();
-
-	if (ShouldExpandSprite())
-	{
-		if (mTrimResult == -1)  mTrimResult = !!TrimBorders(spi.trim);	// get the trim size before adding the empty frame
-		spi.spriteWidth += 2;
-		spi.spriteHeight += 2;
-	}
-	else mTrimResult = 0;
-	SetSpriteRect();
-}
-
 //===========================================================================
 // 
 // Checks if a sprite may be expanded with an empty frame
@@ -876,25 +853,60 @@ outl:
 
 //===========================================================================
 // 
-// Set the sprite rectangle
+// Sets up the sprite positioning data for this texture
+//
+//===========================================================================
+
+void FTexture::SetupSpriteData()
+{
+	// Since this is only needed for real sprites it gets allocated on demand.
+	// It also allocates from the image memory arena because it has the same lifetime and to reduce maintenance.
+	if (spi == nullptr) spi = (SpritePositioningInfo*)ImageArena.Alloc(2 * sizeof(SpritePositioningInfo));
+	for (int i = 0; i < 2; i++)
+	{
+		auto& spi = this->spi[i];
+		spi.mSpriteU[0] = spi.mSpriteV[0] = 0.f;
+		spi.mSpriteU[1] = spi.mSpriteV[1] = 1.f;
+		spi.spriteWidth = GetTexelWidth();
+		spi.spriteHeight = GetTexelHeight();
+
+		if (i == 1 && ShouldExpandSprite())
+		{
+			spi.mTrimResult = TrimBorders(spi.trim);	// get the trim size before adding the empty frame
+			spi.spriteWidth += 2;
+			spi.spriteHeight += 2;
+		}
+	}
+	SetSpriteRect();
+}
+
+//===========================================================================
+//
+// Set the sprite rectangle. This is separate because it may be called by a CVAR, too.
 //
 //===========================================================================
 
 void FTexture::SetSpriteRect()
 {
+
+	if (!spi) return;
 	auto leftOffset = GetLeftOffsetHW();
 	auto topOffset = GetTopOffsetHW();
 
 	float fxScale = (float)Scale.X;
 	float fyScale = (float)Scale.Y;
 
+	for (int i = 0; i < 2; i++)
+	{
+		auto& spi = this->spi[i];
+
 		// mSpriteRect is for positioning the sprite in the scene.
 		spi.mSpriteRect.left = -leftOffset / fxScale;
 		spi.mSpriteRect.top = -topOffset / fyScale;
 		spi.mSpriteRect.width = spi.spriteWidth / fxScale;
 		spi.mSpriteRect.height = spi.spriteHeight / fyScale;
 
-	if (bExpandSprite)
+		if (i == 1 && ShouldExpandSprite())
 		{
 			// a little adjustment to make sprites look better with texture filtering:
 			// create a 1 pixel wide empty frame around them.
@@ -911,7 +923,7 @@ void FTexture::SetSpriteRect()
 			spi.mSpriteRect.width = (float)spi.spriteWidth / fxScale;
 			spi.mSpriteRect.height = (float)spi.spriteHeight / fyScale;
 
-		if (mTrimResult > 0)
+			if (spi.mTrimResult > 0)
 			{
 				spi.mSpriteRect.left += (float)spi.trim[0] / fxScale;
 				spi.mSpriteRect.top += (float)spi.trim[1] / fyScale;
@@ -926,6 +938,7 @@ void FTexture::SetSpriteRect()
 			}
 		}
 	}
+}
 
 
 //===========================================================================

src/common/textures/texturemanager.cpp

@@ -1488,9 +1488,3 @@ FTextureID FTextureID::operator +(int offset) throw()
 	if (texnum + offset >= TexMan.NumTextures()) return FTextureID(-1);
 	return FTextureID(texnum + offset);
 }
-
-
-CCMD(texinfo)
-{
-	Printf("Sizeof texture = %d\n", sizeof(FTexture));
-}

src/common/textures/textures.h

@@ -229,6 +229,7 @@ struct SpritePositioningInfo
 	int spriteWidth, spriteHeight;
 	float mSpriteU[2], mSpriteV[2];
 	FloatRect mSpriteRect;
+	uint8_t mTrimResult;
 
 	float GetSpriteUL() const { return mSpriteU[0]; }
 	float GetSpriteVT() const { return mSpriteV[0]; }
@@ -255,8 +256,7 @@ class FTexture
 
 public:
 
-	SpritePositioningInfo spi;
-	int8_t mTrimResult = -1;
+	SpritePositioningInfo *spi = nullptr;
 
 	IHardwareTexture* GetHardwareTexture(int translation, bool expanded);
 	static FTexture *CreateTexture(const char *name, int lumpnum, ETextureType usetype);
@@ -375,12 +375,6 @@ public:
 protected:
 	ISoftwareTexture *SoftwareTexture = nullptr;
 
-	// None of the following pointers are owned by this texture, they are all controlled by the texture manager.
-
-	// Offset-less version for COMPATF_MASKEDMIDTEX
-	FGameTexture *OffsetLess = nullptr;
-	// Front sky layer variant where color 0 is transparent
-	FGameTexture* FrontSkyLayer = nullptr;
 	public:
 	// Material layers
 	FTexture *Brightmap = nullptr;
@@ -736,7 +730,7 @@ public:
 	void SetDisplaySize(float w, float h) { wrapped.SetSize((int)w, (int)h); }
 
 	void SetSpriteRect() { wrapped.SetSpriteRect(); }
-	const SpritePositioningInfo& GetSpritePositioning(int which) { /* todo: keep two sets of positioning infd*/ if (wrapped.mTrimResult == -1) wrapped.SetupSpriteData(); return wrapped.spi; }
+	const SpritePositioningInfo& GetSpritePositioning(int which) { if (wrapped.spi == nullptr) wrapped.SetupSpriteData(); return wrapped.spi[which]; }
 	int GetAreas(FloatRect** pAreas) const { return wrapped.GetAreas(pAreas); }
 	PalEntry GetSkyCapColor(bool bottom) { return wrapped.GetSkyCapColor(bottom); }