- changed render interface to resolve textures to materials in the backend.

This is needed to have a unified spot where to resolve textures for both 2D and 3D.

source/common/engine/i_interface.h

@@ -4,6 +4,9 @@
 #include "intrect.h"
 
 struct event_t;
+class FRenderState;
+class FGameTexture;
+enum EUpscaleFlags;
 
 struct SystemCallbacks
 {
@@ -27,6 +30,7 @@ struct SystemCallbacks
 	void (*MenuClosed)();
 	bool (*CheckMenudefOption)(const char* opt);
 	void (*ConsoleToggled)(int state);
+	bool (*PreBindTexture)(FRenderState* state, FGameTexture*& tex, EUpscaleFlags& flags, int& clampmode, int& translation, int& overrideshader);
 };
 
 extern SystemCallbacks sysCallbacks;

source/common/rendering/hwrenderer/data/hw_renderstate.h

@@ -5,6 +5,7 @@
 #include "hw_material.h"
 #include "texmanip.h"
 #include "version.h"
+#include "i_interface.h"
 
 struct FColormap;
 class IVertexBuffer;
@@ -569,6 +570,7 @@ public:
 		mBias.mChanged = true;
 	}
 
+private:
 	void SetMaterial(FMaterial *mat, int clampmode, int translation, int overrideshader)
 	{
 		mMaterial.mMaterial = mat;
@@ -581,9 +583,13 @@ public:
 		mStreamData.uDetailParms = { scale.X, scale.Y, 2, 0 };
 	}
 
+public:
 	void SetMaterial(FGameTexture* tex, EUpscaleFlags upscalemask, int scaleflags, int clampmode, int translation, int overrideshader)
 	{
-		if (shouldUpscale(tex, upscalemask)) scaleflags |= CTF_Upscale;
+		if (sysCallbacks.PreBindTexture && !sysCallbacks.PreBindTexture(this, tex, upscalemask, clampmode, translation, overrideshader))
+		{
+			if (shouldUpscale(tex, upscalemask)) scaleflags |= CTF_Upscale;
+		}
 		SetMaterial(FMaterial::ValidateTexture(tex, scaleflags), clampmode, translation, overrideshader);
 	}
 

source/glbackend/gl_texture.cpp

@@ -78,8 +78,9 @@ bool GLInstance::SetTexture(int picnum, FGameTexture* tex, int paletteid, int sa
 
 	SetBasepalTint(texpick.basepalTint);
 	auto &mat = renderState.mMaterial;
-	int flags = (TextureType == TT_INDEXED) ? CTF_Indexed : 0;
-	mat.mMaterial = FMaterial::ValidateTexture(texpick.texture, flags); // todo allow scaling
+	mat.mTexture = texpick.texture;
+	mat.uFlags = UF_None;
+	mat.mScaleFlags = (TextureType == TT_INDEXED) ? CTF_Indexed : 0;
 	mat.mClampMode = sampler;
 	mat.mTranslation = texpick.translation;
 	mat.mOverrideShader = -1;

source/glbackend/glbackend.cpp

@@ -58,16 +58,6 @@ static int BufferLock = 0;
 TArray<VSMatrix> matrixArray;
 void Draw2D(F2DDrawer* drawer, FRenderState& state);
 
-FileReader GetResource(const char* fn)
-{
-	auto fr = fileSystem.OpenFileReader(fn);
-	if (!fr.isOpen())
-	{
-		I_Error("Fatal: '%s' not found", fn);
-	}
-	return fr;
-}
-
 GLInstance GLInterface;
 
 GLInstance::GLInstance()
@@ -77,10 +67,6 @@ GLInstance::GLInstance()
 	matrixArray.Push(mat);
 }
 
-//void ImGui_Init_Backend();
-//ImGuiContext* im_ctx;
-TArray<uint8_t> ttf;
-
 IHardwareTexture *setpalettelayer(int layer, int translation)
 {
 	if (layer == 1)
@@ -171,7 +157,7 @@ void PolymostRenderState::Apply(FRenderState& state, GLState& oldState)
 	else
 	{
 		state.EnableTexture(gl_texture);
-		state.SetMaterial(mMaterial.mMaterial, mMaterial.mClampMode, mMaterial.mTranslation, mMaterial.mOverrideShader);
+		state.SetMaterial(mMaterial.mTexture, mMaterial.uFlags, mMaterial.mScaleFlags, mMaterial.mClampMode, mMaterial.mTranslation, mMaterial.mOverrideShader);
 	}
 
 	state.SetColor(Color[0], Color[1], Color[2], Color[3]);
@@ -262,7 +248,6 @@ void PolymostRenderState::Apply(FRenderState& state, GLState& oldState)
 	FVector4 blendcol(0, 0, 0, 0);
 	int flags = 0;
 
-	if (Flags & RF_ShadeInterpolate) flags |= 16384;	// hijack a free bit in here.
 	if (fullscreenTint != 0xffffff) flags |= 16;
 	if (hictint_flags != -1)
 	{
@@ -274,7 +259,7 @@ void PolymostRenderState::Apply(FRenderState& state, GLState& oldState)
 			modcol.Z *= hictint.b / 64.f;
 		}
 		if (hictint_flags & TINTF_GRAYSCALE)
-			modcol.W = 1.f;
+			modcol.W = 1.f; 
 
 		if (hictint_flags & TINTF_INVERT)
 			flags |= TextureManipulation::InvertBit;
@@ -286,6 +271,7 @@ void PolymostRenderState::Apply(FRenderState& state, GLState& oldState)
 		}
 	}
 	addcol.W = flags;
+	if (Flags & RF_ShadeInterpolate) addcol.W += 16384;	// hijack a free bit in here.
 	state.SetTextureColors(&modcol.X, &addcol.X, &blendcol.X);
 
 	if (matrixIndex[Matrix_Model] != -1)

source/glbackend/glbackend.h

@@ -269,22 +269,16 @@ public:
 		SetColor(r * (1 / 255.f), g * (1 / 255.f), b * (1 / 255.f), a * (1 / 255.f));
 	}
 
-	void SetMaterial(FMaterial* mat, int clampmode, int translation, int overrideshader)
+	void SetMaterial(FGameTexture* tex, EUpscaleFlags upscalemask, int scaleflags, int clampmode, int translation, int overrideshader)
 	{
-		assert(mat);
-		renderState.mMaterial.mMaterial = mat;
+		assert(tex);
+		renderState.mMaterial.mTexture = tex;
+		renderState.mMaterial.uFlags = upscalemask;
+		renderState.mMaterial.mScaleFlags = scaleflags;
 		renderState.mMaterial.mClampMode = clampmode;
 		renderState.mMaterial.mTranslation = translation;
 		renderState.mMaterial.mOverrideShader = overrideshader;
 		renderState.mMaterial.mChanged = true;
-		//mTextureModeFlags = mat->GetLayerFlags();
-	}
-
-	void SetMaterial(FGameTexture* tex, EUpscaleFlags upscalemask, int scaleflags, int clampmode, int translation, int overrideshader)
-	{
-		assert(tex);
-		if (shouldUpscale(tex, upscalemask)) scaleflags |= CTF_Upscale;
-		SetMaterial(FMaterial::ValidateTexture(tex, scaleflags), clampmode, translation, overrideshader);
 	}
 
 	void UseColorOnly(bool yes)

source/glbackend/pm_renderstate.h

@@ -43,6 +43,28 @@ enum PRSFlags
 	STF_SCISSORSET = 8192,
 };
 
+struct PolymostTextureState
+{
+	FGameTexture* mTexture = nullptr;
+	EUpscaleFlags uFlags;
+	int mScaleFlags;
+	int mClampMode;
+	int mTranslation;
+	int mOverrideShader;
+	bool mChanged;
+
+	void Reset()
+	{
+		mTexture = nullptr;
+		uFlags = UF_None;
+		mScaleFlags = 0;
+		mTranslation = 0;
+		mClampMode = CLAMP_NONE;
+		mOverrideShader = -1;
+		mChanged = false;
+	}
+};
+
 struct PolymostRenderState
 {
 	int vindex, vcount, primtype;
@@ -59,7 +81,7 @@ struct PolymostRenderState
 	PalEntry fullscreenTint = 0xffffff, hictint = 0xffffff, hictint_overlay = 0xffffff;
 	int hictint_flags = -1;
 	FDepthBiasState mBias{ };
-	FMaterialState mMaterial;
+	PolymostTextureState mMaterial;
 
 	int StateFlags = STF_COLORMASK|STF_DEPTHMASK;
 	FRenderStyle Style{};