- removed the intermediate FGLTexture class.

This wasn't serving any real purpose anymore, and all its remaining functionality could be moved to FHardwareTexture

src/gl/scene/gl_swscene.cpp

@@ -65,7 +65,6 @@ public:
 class FSWSceneTexture : public FTexture
 {
 public:
-	FHardwareTexture *hwtex;
 
 	FSWSceneTexture(int w, int h, int bits)
 	{
@@ -73,9 +72,8 @@ public:
 		Height = h;
 		WidthBits = bits;
 		UseType = ETextureType::SWCanvas;
-
+		bNoCompress = true;
-		hwtex = new FHardwareTexture(true);
+		gl_info.SystemTexture[0] = screen->CreateHardwareTexture(this);
-		new FGLTexture(this, hwtex);
 	}
 
 	// This is just a wrapper around the hardware texture and should never call the bitmap getters - if it does, something is wrong.
@@ -101,20 +99,23 @@ SWSceneDrawer::~SWSceneDrawer()
 void SWSceneDrawer::RenderView(player_t *player)
 {
 	DCanvas buffer(screen->GetWidth(), screen->GetHeight(), V_IsTrueColor());
-	if (FBTexture == nullptr || FBTexture->hwtex == nullptr || FBTexture->GetWidth() != screen->GetWidth() || FBTexture->GetHeight() != screen->GetHeight() || (V_IsTrueColor() ? 1:0) != FBTexture->WidthBits)
+	if (FBTexture == nullptr || FBTexture->gl_info.SystemTexture[0] == nullptr || 
+		FBTexture->GetWidth() != screen->GetWidth() || 
+		FBTexture->GetHeight() != screen->GetHeight() || 
+		(V_IsTrueColor() ? 1:0) != FBTexture->WidthBits)
 	{
 		// This manually constructs its own material here.
 		if (FBTexture != nullptr) delete FBTexture;
 		FBTexture = new FSWSceneTexture(screen->GetWidth(), screen->GetHeight(), V_IsTrueColor());
-		FBTexture->hwtex->AllocateBuffer(screen->GetWidth(), screen->GetHeight(), V_IsTrueColor() ? 4 : 1);
+		FBTexture->gl_info.SystemTexture[0]->AllocateBuffer(screen->GetWidth(), screen->GetHeight(), V_IsTrueColor() ? 4 : 1);
 		auto mat = FMaterial::ValidateTexture(FBTexture, false);
 		mat->AddTextureLayer(PaletteTexture);
 	}
-	auto buf = FBTexture->hwtex->MapBuffer();
+	auto buf = FBTexture->gl_info.SystemTexture[0]->MapBuffer();
 	if (!buf) I_FatalError("Unable to map buffer for software rendering");
 	buffer.SetBuffer(screen->GetWidth(), screen->GetHeight(), screen->GetWidth(), buf);
 	SWRenderer->RenderView(player, &buffer);
-	FBTexture->hwtex->CreateTexture(nullptr, screen->GetWidth(), screen->GetHeight(), 0, false, 0, "swbuffer");
+	FBTexture->gl_info.SystemTexture[0]->CreateTexture(nullptr, screen->GetWidth(), screen->GetHeight(), 0, false, 0, "swbuffer");
 
 	auto map = swrenderer::CameraLight::Instance()->ShaderColormap();
 	screen->Begin2D(false);

src/gl/system/gl_framebuffer.cpp

@@ -388,6 +388,12 @@ void OpenGLFrameBuffer::SetTextureFilterMode()
 	if (GLRenderer != nullptr && GLRenderer->mSamplerManager != nullptr) GLRenderer->mSamplerManager->SetTextureFilterMode();
 }
 
+FHardwareTexture *OpenGLFrameBuffer::CreateHardwareTexture(FTexture *tex) 
+{ 
+	return new FHardwareTexture(tex->bNoCompress);
+}
+
+
 void OpenGLFrameBuffer::UpdatePalette()
 {
 	if (GLRenderer)

src/gl/system/gl_framebuffer.h

@@ -43,6 +43,7 @@ public:
 	void WriteSavePic(player_t *player, FileWriter *file, int width, int height) override;
 	void RenderView(player_t *player) override;
 	void SetTextureFilterMode() override;
+	FHardwareTexture *CreateHardwareTexture(FTexture *tex) override;
 
 	// Retrieves a buffer containing image data for a screenshot.
 	// Hint: Pitch can be negative for upside-down images, in which case buffer

src/gl/textures/gl_hwtexture.cpp

@@ -35,6 +35,7 @@
 #include "gl/system/gl_debug.h"
 #include "gl/renderer/gl_renderer.h"
 #include "gl/textures/gl_material.h"
+#include "gl/textures/gl_samplers.h"
 
 
 extern TexFilter_s TexFilter[];
@@ -491,3 +492,64 @@ void FHardwareTexture::BindToFrameBuffer(int width, int height)
 	glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, GetDepthBuffer(width, height));
 }
 
+
+//===========================================================================
+// 
+//	Binds a texture to the renderer
+//
+//===========================================================================
+
+bool FHardwareTexture::BindOrCreate(FTexture *tex, int texunit, int clampmode, int translation, int flags)
+{
+	int usebright = false;
+
+	if (translation <= 0)
+	{
+		translation = -translation;
+	}
+	else
+	{
+		auto remap = TranslationToTable(translation);
+		translation = remap == nullptr ? 0 : remap->GetUniqueIndex();
+	}
+
+	bool needmipmap = (clampmode <= CLAMP_XY);
+
+	// Texture has become invalid
+	if ((!tex->bHasCanvas && (!tex->bWarped || gl.legacyMode)) && tex->CheckModified(DefaultRenderStyle()))
+	{
+		Clean(true);
+	}
+
+	// Bind it to the system.
+	if (!Bind(texunit, translation, needmipmap))
+	{
+
+		int w = 0, h = 0;
+
+		// Create this texture
+		unsigned char * buffer = nullptr;
+
+		if (!tex->bHasCanvas)
+		{
+			if (gl.legacyMode) flags |= CTF_MaybeWarped;
+			buffer = tex->CreateTexBuffer(translation, w, h, flags | CTF_ProcessData);
+		}
+		else
+		{
+			w = tex->GetWidth();
+			h = tex->GetHeight();
+		}
+		if (!CreateTexture(buffer, w, h, texunit, needmipmap, translation, "FHardwareTexture.BindOrCreate"))
+		{
+			// could not create texture
+			delete[] buffer;
+			return false;
+		}
+		delete[] buffer;
+	}
+	if (tex->bHasCanvas) static_cast<FCanvasTexture*>(tex)->NeedUpdate();
+	GLRenderer->mSamplerManager->Bind(texunit, clampmode, 255);
+	return true;
+}
+

src/gl/textures/gl_hwtexture.h

@@ -83,6 +83,8 @@ public:
 	void BindToFrameBuffer(int w, int h);
 
 	unsigned int Bind(int texunit, int translation, bool needmipmap);
+	bool BindOrCreate(FTexture *tex, int texunit, int clampmode, int translation, int flags);
+
 	void AllocateBuffer(int w, int h, int texelsize);
 	uint8_t *MapBuffer();
 

src/gl/textures/gl_material.cpp

@@ -26,13 +26,11 @@
 #include "sbar.h"
 #include "stats.h"
 #include "r_utility.h"
-#include "textures/warpbuffer.h"
 
 #include "gl/system/gl_interface.h"
 #include "gl/system/gl_framebuffer.h"
 #include "gl/renderer/gl_renderer.h"
 #include "gl/textures/gl_material.h"
-#include "gl/textures/gl_samplers.h"
 #include "gl/shaders/gl_shader.h"
 
 EXTERN_CVAR(Bool, gl_render_precise)
@@ -40,185 +38,6 @@ EXTERN_CVAR(Int, gl_lightmode)
 EXTERN_CVAR(Bool, gl_precache)
 EXTERN_CVAR(Bool, gl_texture_usehires)
 
-//===========================================================================
-//
-// The GL texture maintenance class
-//
-//===========================================================================
-
-//===========================================================================
-//
-// Constructor
-//
-//===========================================================================
-FGLTexture::FGLTexture(FTexture * tx, bool expandpatches)
-{
-	assert(tx->gl_info.SystemTexture[expandpatches] == NULL);
-	tex = tx;
-
-	mHwTexture = NULL;
-	lastSampler = 254;
-	lastTranslation = -1;
-	tex->gl_info.SystemTexture[expandpatches] = this;
-}
-
-//===========================================================================
-//
-// Constructor 2 for the SW framebuffer which provides its own hardware texture.
-//
-//===========================================================================
-FGLTexture::FGLTexture(FTexture * tx, FHardwareTexture *hwtex)
-{
-	assert(tx->gl_info.SystemTexture[0] == NULL);
-	tex = tx;
-
-	mHwTexture = hwtex;
-	lastSampler = 254;
-	lastTranslation = -1;
-	tex->gl_info.SystemTexture[0] = this;
-}
-
-//===========================================================================
-//
-// Destructor
-//
-//===========================================================================
-
-FGLTexture::~FGLTexture()
-{
-	Clean(true);
-	for (auto & i : tex->gl_info.SystemTexture) if (i == this) i = nullptr;
-}
-
-//===========================================================================
-// 
-//	Deletes all allocated resources
-//
-//===========================================================================
-
-void FGLTexture::Clean(bool all)
-{
-	if (mHwTexture != nullptr) 
-	{
-		if (!all) mHwTexture->Clean(false);
-		else
-		{
-			delete mHwTexture;
-			mHwTexture = nullptr;
-		}
-
-		lastSampler = 253;
-		lastTranslation = -1;
-	}
-}
-
-
-void FGLTexture::CleanUnused(SpriteHits &usedtranslations)
-{
-	if (mHwTexture != nullptr)
-	{
-		mHwTexture->CleanUnused(usedtranslations);
-		lastSampler = 253;
-		lastTranslation = -1;
-	}
-}
-
-
-//===========================================================================
-// 
-//	Create hardware texture for world use
-//
-//===========================================================================
-
-FHardwareTexture *FGLTexture::CreateHwTexture()
-{
-	if (tex->UseType==ETextureType::Null) return NULL;		// Cannot register a NULL texture
-	if (mHwTexture == NULL)
-	{
-		mHwTexture = new FHardwareTexture(tex->bNoCompress);
-	}
-	return mHwTexture; 
-}
-
-//===========================================================================
-// 
-//	Binds a texture to the renderer
-//
-//===========================================================================
-
-bool FGLTexture::Bind(int texunit, int clampmode, int translation, int flags)
-{
-	int usebright = false;
-
-	if (translation <= 0)
-	{
-		translation = -translation;
-	}
-	else
-	{
-		auto remap = TranslationToTable(translation);
-		translation = remap == nullptr ? 0 : remap->GetUniqueIndex();
-	}
-
-	bool needmipmap = (clampmode <= CLAMP_XY);
-
-	FHardwareTexture *hwtex = CreateHwTexture();
-
-	if (hwtex)
-	{
-		// Texture has become invalid
-		if ((!tex->bHasCanvas && (!tex->bWarped || gl.legacyMode)) && tex->CheckModified(DefaultRenderStyle()))
-		{
-			Clean(true);
-			hwtex = CreateHwTexture();
-		}
-
-		// Bind it to the system.
-		if (!hwtex->Bind(texunit, translation, needmipmap))
-		{
-			
-			int w=0, h=0;
-
-			// Create this texture
-			unsigned char * buffer = nullptr;
-			
-			if (!tex->bHasCanvas)
-			{
-				buffer = tex->CreateTexBuffer(translation, w, h, flags | CTF_ProcessData);
-				if (tex->bWarped && gl.legacyMode && w*h <= 256*256)	// do not software-warp larger textures, especially on the old systems that still need this fallback.
-				{
-					// need to do software warping
-					FWarpTexture *wt = static_cast<FWarpTexture*>(tex);
-					unsigned char *warpbuffer = new unsigned char[w*h*4];
-					WarpBuffer((uint32_t*)warpbuffer, (const uint32_t*)buffer, w, h, wt->WidthOffsetMultiplier, wt->HeightOffsetMultiplier, screen->FrameTime, wt->Speed, tex->bWarped);
-					delete[] buffer;
-					buffer = warpbuffer;
-					wt->GenTime[0] = screen->FrameTime;
-				}
-			}
-			else
-			{
-				w = tex->GetWidth();
-				h = tex->GetHeight();
-			}
-			if (!hwtex->CreateTexture(buffer, w, h, texunit, needmipmap, translation, "FGLTexture.Bind")) 
-			{
-				// could not create texture
-				delete[] buffer;
-				return false;
-			}
-			delete[] buffer;
-		}
-		if (tex->bHasCanvas) static_cast<FCanvasTexture*>(tex)->NeedUpdate();
-		if (translation != lastTranslation) lastSampler = 254;
-		if (lastSampler != clampmode)
-			lastSampler = GLRenderer->mSamplerManager->Bind(texunit, clampmode, lastSampler);
-		lastTranslation = translation;
-		return true; 
-	}
-	return false;
-}
-
 //===========================================================================
 //
 //
@@ -288,18 +107,18 @@ float FTexCoordInfo::TextureAdjustWidth() const
 //
 //
 //===========================================================================
-FGLTexture * FMaterial::ValidateSysTexture(FTexture * tex, bool expand)
+FHardwareTexture * FMaterial::ValidateSysTexture(FTexture * tex, bool expand)
 {
 	if (tex	&& tex->UseType!=ETextureType::Null)
 	{
-		FGLTexture *gltex = tex->gl_info.SystemTexture[expand];
+		FHardwareTexture *gltex = tex->gl_info.SystemTexture[expand];
-		if (gltex == NULL) 
+		if (gltex == nullptr) 
 		{
-			gltex = new FGLTexture(tex, expand);
+			gltex = tex->gl_info.SystemTexture[expand] = screen->CreateHardwareTexture(tex);
 		}
 		return gltex;
 	}
-	return NULL;
+	return nullptr;
 }
 
 //===========================================================================
@@ -625,7 +444,7 @@ void FMaterial::Bind(int clampmode, int translation)
 	// Textures that are already scaled in the texture lump will not get replaced by hires textures.
 	int flags = mExpanded? CTF_Expand : (gl_texture_usehires && tex->Scale.X == 1 && tex->Scale.Y == 1 && clampmode <= CLAMP_XY)? CTF_CheckHires : 0;
 
-	if (mBaseLayer->Bind(0, clampmode, translation, flags))
+	if (mBaseLayer->BindOrCreate(tex, 0, clampmode, translation, flags))
 	{
 		for(unsigned i=0;i<mTextureLayers.Size();i++)
 		{
@@ -634,13 +453,13 @@ void FMaterial::Bind(int clampmode, int translation)
 			{
 				FTextureID id = mTextureLayers[i].texture->id;
 				layer = TexMan(id);
-				ValidateSysTexture(layer, mExpanded);
 			}
 			else
 			{
 				layer = mTextureLayers[i].texture;
 			}
-			layer->gl_info.SystemTexture[mExpanded]->Bind(i+1, clampmode, 0, 0);
+			auto systex = ValidateSysTexture(layer, mExpanded);
+			systex->BindOrCreate(layer, i+1, clampmode, 0, 0);
 			maxbound = i+1;
 		}
 	}
@@ -730,7 +549,6 @@ int FMaterial::GetAreas(FloatRect **pAreas) const
 {
 	if (mShaderIndex == SHADER_Default)	// texture splitting can only be done if there's no attached effects
 	{
-		FTexture *tex = mBaseLayer->tex;
 		*pAreas = tex->areas;
 		return tex->areacount;
 	}
@@ -748,14 +566,14 @@ int FMaterial::GetAreas(FloatRect **pAreas) const
 
 void FMaterial::BindToFrameBuffer()
 {
-	if (mBaseLayer->mHwTexture == NULL)
+	if (mBaseLayer == nullptr)
 	{
 		// must create the hardware texture first
-		mBaseLayer->Bind(0, 0, 0, 0);
+		mBaseLayer->BindOrCreate(tex, 0, 0, 0, 0);
 		FHardwareTexture::Unbind(0);
 		ClearLastTexture();
 	}
-	mBaseLayer->mHwTexture->BindToFrameBuffer(mWidth, mHeight);
+	mBaseLayer->BindToFrameBuffer(mWidth, mHeight);
 }
 
 //==========================================================================
@@ -823,8 +641,8 @@ void FMaterial::FlushAll()
 	{
 		for (int j = 0; j < 2; j++)
 		{
-			FGLTexture *gltex = TexMan.ByIndex(i)->gl_info.SystemTexture[j];
+			auto gltex = TexMan.ByIndex(i)->gl_info.SystemTexture[j];
-			if (gltex != NULL) gltex->Clean(true);
+			if (gltex != nullptr) gltex->Clean(true);
 		}
 	}
 }

src/gl/textures/gl_material.h

@@ -43,39 +43,6 @@ struct FTexCoordInfo
 	float TextureAdjustWidth() const;
 };
 
-//===========================================================================
-// 
-// device independent wrapper around the hardware texture and its sampler state
-//
-//===========================================================================
-class FMaterial;
-
-class FGLTexture
-{
-	friend class FMaterial;
-public:
-	FTexture * tex;
-
-private:
-	FHardwareTexture *mHwTexture;
-
-	uint8_t lastSampler;
-	int lastTranslation;
-
-	FHardwareTexture *CreateHwTexture();
-
-	bool Bind(int texunit, int clamp, int translation, int flags);
-	
-public:
-	FGLTexture(FTexture * tx, bool expandpatches);
-	FGLTexture(FTexture * tx, FHardwareTexture *hwtex);	// for the SW framebuffer
-	~FGLTexture();
-
-	void Clean(bool all);
-	void CleanUnused(SpriteHits &usedtranslations);
-	bool isInitialized() const { return mHwTexture != nullptr; }
-};
-
 //===========================================================================
 // 
 // this is the material class for OpenGL. 
@@ -98,7 +65,7 @@ class FMaterial
 	static TArray<FMaterial *> mMaterials;
 	static int mMaxBound;
 
-	FGLTexture *mBaseLayer;	
+	FHardwareTexture *mBaseLayer;	
 	TArray<FTextureLayer> mTextureLayers;
 	int mShaderIndex;
 
@@ -115,7 +82,7 @@ class FMaterial
 	float mSpriteU[2], mSpriteV[2];
 	FloatRect mSpriteRect;
 
-	FGLTexture * ValidateSysTexture(FTexture * tex, bool expand);
+	FHardwareTexture * ValidateSysTexture(FTexture * tex, bool expand);
 	bool TrimBorders(uint16_t *rect);
 
 public:
@@ -134,7 +101,7 @@ public:
 	}
 	bool isMasked() const
 	{
-		return !!mBaseLayer->tex->bMasked;
+		return !!tex->bMasked;
 	}
 
 	int GetLayers() const

src/hwrenderer/scene/hw_fakeflat.cpp

@@ -173,9 +173,8 @@ area_t hw_CheckViewArea(area_t in_area, vertex_t *v1, vertex_t *v2, sector_t *fr
 		// allow some tolerance in case slopes are involved
 		if (cz1 <= fz1 + 1. / 100 && cz2 <= fz2 + 1. / 100)
 			return area_below;
-		else
-			return area_normal;
 	}
+	return area_normal;
 }
 
 

src/textures/texture.cpp

@@ -45,6 +45,7 @@
 #include "c_dispatch.h"
 #include "v_video.h"
 #include "m_fixed.h"
+#include "textures/warpbuffer.h"
 
 FTexture *CreateBrightmapTexture(FTexture*);
 
@@ -1352,7 +1353,7 @@ bool FTexture::ProcessData(unsigned char * buffer, int w, int h, bool ispatch)
 
 unsigned char * FTexture::CreateTexBuffer(int translation, int & w, int & h, int flags)
 {
-	unsigned char * buffer;
+	unsigned char * buffer = nullptr;
 	int W, H;
 	int isTransparent = -1;
 
@@ -1360,71 +1361,82 @@ unsigned char * FTexture::CreateTexBuffer(int translation, int & w, int & h, int
 	if ((flags & CTF_CheckHires) && translation != STRange_AlphaTexture)
 	{
 		buffer = LoadHiresTexture(&w, &h);
-		if (buffer)
-		{
-			return buffer;
-		}
 	}
 
-	int exx = !!(flags & CTF_Expand);
+	if (buffer == nullptr)
-
-	W = w = GetWidth() + 2 * exx;
-	H = h = GetHeight() + 2 * exx;
-
-
-	buffer = new unsigned char[W*(H + 1) * 4];
-	memset(buffer, 0, W * (H + 1) * 4);
-
-	FBitmap bmp(buffer, W * 4, W, H);
-
-	if (translation <= 0 || translation >= STRange_Min)
 	{
-		// Allow creation of desaturated or special-colormapped textures for the legacy renderer.
-		FCopyInfo inf = { OP_COPY, BLEND_NONE,{ 0 }, 0, 0 };
-		if (translation >= STRange_Desaturate && translation < STRange_Desaturate + 31)	// there are 31 ranges of desaturations available
-		{
-			inf.blend = (EBlend)(BLEND_DESATURATE1 + translation - STRange_Desaturate);
-		}
-		else if (translation >= STRange_Specialcolormap && translation < STRange_Specialcolormap + (int)SpecialColormaps.Size())
-		{
-			inf.blend = (EBlend)(BLEND_SPECIALCOLORMAP1 + translation - STRange_Specialcolormap);
-		}
 
-		int trans = CopyTrueColorPixels(&bmp, exx, exx, 0, translation >= STRange_Min ? &inf : nullptr);
+		int exx = !!(flags & CTF_Expand);
-		CheckTrans(buffer, W*H, trans);
+
-		isTransparent = bTranslucent;
+		W = w = GetWidth() + 2 * exx;
-		// alpha texture for legacy mode
+		H = h = GetHeight() + 2 * exx;
-		if (translation == STRange_AlphaTexture)
+
+
+		buffer = new unsigned char[W*(H + 1) * 4];
+		memset(buffer, 0, W * (H + 1) * 4);
+
+		FBitmap bmp(buffer, W * 4, W, H);
+
+		if (translation <= 0 || translation >= STRange_Min)
 		{
-			for (int i = 0; i < W*H; i++)
+			// Allow creation of desaturated or special-colormapped textures for the legacy renderer.
+			FCopyInfo inf = { OP_COPY, BLEND_NONE,{ 0 }, 0, 0 };
+			if (translation >= STRange_Desaturate && translation < STRange_Desaturate + 31)	// there are 31 ranges of desaturations available
 			{
-				int b = buffer[4 * i];
+				inf.blend = (EBlend)(BLEND_DESATURATE1 + translation - STRange_Desaturate);
-				int g = buffer[4 * i + 1];
+			}
-				int r = buffer[4 * i + 2];
+			else if (translation >= STRange_Specialcolormap && translation < STRange_Specialcolormap + (int)SpecialColormaps.Size())
-				int gray = Luminance(r, g, b);
+			{
-				buffer[4 * i] = 255;
+				inf.blend = (EBlend)(BLEND_SPECIALCOLORMAP1 + translation - STRange_Specialcolormap);
-				buffer[4 * i + 1] = 255;
+			}
-				buffer[4 * i + 2] = 255;
+
-				buffer[4 * i + 3] = (buffer[4 * i + 3] * gray) >> 8;
+			int trans = CopyTrueColorPixels(&bmp, exx, exx, 0, translation >= STRange_Min ? &inf : nullptr);
+			CheckTrans(buffer, W*H, trans);
+			isTransparent = bTranslucent;
+			// alpha texture for legacy mode
+			if (translation == STRange_AlphaTexture)
+			{
+				for (int i = 0; i < W*H; i++)
+				{
+					int b = buffer[4 * i];
+					int g = buffer[4 * i + 1];
+					int r = buffer[4 * i + 2];
+					int gray = Luminance(r, g, b);
+					buffer[4 * i] = 255;
+					buffer[4 * i + 1] = 255;
+					buffer[4 * i + 2] = 255;
+					buffer[4 * i + 3] = (buffer[4 * i + 3] * gray) >> 8;
+				}
 			}
 		}
+		else
+		{
+			// When using translations everything must be mapped to the base palette.
+			// so use CopyTrueColorTranslated
+			CopyTrueColorTranslated(&bmp, exx, exx, 0, FUniquePalette::GetPalette(translation));
+			isTransparent = 0;
+			// This is not conclusive for setting the texture's transparency info.
+		}
+
+		// [BB] The hqnx upsampling (not the scaleN one) destroys partial transparency, don't upsamle textures using it.
+		// [BB] Potentially upsample the buffer.
+		if (flags & CTF_ProcessData)
+		{
+			buffer = CreateUpsampledTextureBuffer(buffer, W, H, w, h, !!isTransparent);
+			ProcessData(buffer, w, h, false);
+		}
 	}
-	else
+	if ((flags & CTF_MaybeWarped) && bWarped && w*h <= 256 * 256)	// do not software-warp larger textures, especially on the old systems that still need this fallback.
 	{
-		// When using translations everything must be mapped to the base palette.
+		// need to do software warping
-		// so use CopyTrueColorTranslated
+		FWarpTexture *wt = static_cast<FWarpTexture*>(this);
-		CopyTrueColorTranslated(&bmp, exx, exx, 0, FUniquePalette::GetPalette(translation));
+		unsigned char *warpbuffer = new unsigned char[w*h * 4];
-		isTransparent = 0;
+		WarpBuffer((uint32_t*)warpbuffer, (const uint32_t*)buffer, w, h, wt->WidthOffsetMultiplier, wt->HeightOffsetMultiplier, screen->FrameTime, wt->Speed, bWarped);
-		// This is not conclusive for setting the texture's transparency info.
+		delete[] buffer;
+		buffer = warpbuffer;
+		wt->GenTime[0] = screen->FrameTime;
 	}
 
-	// [BB] The hqnx upsampling (not the scaleN one) destroys partial transparency, don't upsamle textures using it.
-	// [BB] Potentially upsample the buffer.
-	if (flags & CTF_ProcessData)
-	{
-		buffer = CreateUpsampledTextureBuffer(buffer, W, H, w, h, !!isTransparent);
-		ProcessData(buffer, w, h, false);
-	}
 	return buffer;
 }
 

src/textures/textures.h

@@ -99,9 +99,10 @@ enum ESpecialTranslations : int32_t
 
 enum ECreateTexBufferFlags
 {
-	CTF_CheckHires = 1,	// use external hires replacement if found
+	CTF_CheckHires = 1,		// use external hires replacement if found
-	CTF_Expand = 2,		// create buffer with a one-pixel wide border
+	CTF_Expand = 2,			// create buffer with a one-pixel wide border
-	CTF_ProcessData = 4	// run postprocessing on the generated buffer. This is only needed when using the data for a hardware texture.
+	CTF_ProcessData = 4,	// run postprocessing on the generated buffer. This is only needed when using the data for a hardware texture.
+	CTF_MaybeWarped = 8		// may be warped if needed
 };
 
 
@@ -114,7 +115,7 @@ class FScanner;
 // Texture IDs
 class FTextureManager;
 class FTerrainTypeArray;
-class FGLTexture;
+class FHardwareTexture;
 class FMaterial;
 extern int r_spriteadjustSW, r_spriteadjustHW;
 
@@ -481,7 +482,7 @@ public:
 	struct GLTexInfo
 	{
 		FMaterial *Material[2] = { nullptr, nullptr };
-		FGLTexture *SystemTexture[2] = { nullptr, nullptr };
+		FHardwareTexture *SystemTexture[2] = { nullptr, nullptr };
 		bool bNoExpand = false;
 
 		~GLTexInfo();

src/v_video.h

@@ -280,6 +280,8 @@ public:
 
 
 class FUniquePalette;
+class FHardwareTexture;
+class FTexture;
 
 // A canvas that represents the actual display. The video code is responsible
 // for actually implementing this. Built on top of SimpleCanvas, because it
@@ -351,6 +353,7 @@ public:
 	// Delete any resources that need to be deleted after restarting with a different IWAD
 	virtual void CleanForRestart() {}
 	virtual void SetTextureFilterMode() {}
+	virtual FHardwareTexture *CreateHardwareTexture(FTexture *tex) { return nullptr; }
 
 	// Begin 2D drawing operations.
 	// Returns true if hardware-accelerated 2D has been entered, false if not.