- Added support for defining the full color range of a special colormap.

SVN r1865 (trunk)

docs/rh-log.txt

@@ -1,4 +1,8 @@
 September 21, 2009
+- Added support for defining the full color range of a special colormap.
+- Moved the code for specialcolormap and colormapstyle in D3DFB::SetStyle()
+  at the end of the normally-colored block so that they get all the proper
+  texture format setup.
 - Fixed: In letterbox modes, the clipping window needs to be adjusted down.
 
 September 21, 2009  (Changes by Graf Zahl)

src/r_things.cpp

@@ -1823,10 +1823,6 @@ void R_DrawRemainingPlayerSprites()
 			{
 				// Yuck! There needs to be a better way to store colormaps in the vissprite... :(
 				ptrdiff_t specialmap = (vis->colormap - SpecialColormaps[0].Colormap) / sizeof(FSpecialColormap);
-				if (SpecialColormaps[specialmap].Inverted)
-				{
-					vis->RenderStyle.Flags ^= STYLEF_InvertSource;
-				}
 				special = &SpecialColormaps[specialmap];
 			}
 			else if (colormap->Color == PalEntry(255,255,255) &&

src/thingdef/thingdef_properties.cpp

@@ -1608,7 +1608,7 @@ DEFINE_CLASS_PROPERTY_PREFIX(powerup, color, C_f, Inventory)
 //==========================================================================
 //
 //==========================================================================
-DEFINE_CLASS_PROPERTY_PREFIX(powerup, colormap, FFFI, Inventory)
+DEFINE_CLASS_PROPERTY_PREFIX(powerup, colormap, FFFfff, Inventory)
 {
 	PalEntry * pBlendColor;
 
@@ -1626,14 +1626,27 @@ DEFINE_CLASS_PROPERTY_PREFIX(powerup, colormap, FFFI, Inventory)
 		return;
 	}
 
-	PROP_FLOAT_PARM(r, 0);
-	PROP_FLOAT_PARM(g, 1);
-	PROP_FLOAT_PARM(b, 2);
-	PROP_INT_PARM(inv, 3);
-
-
-
-	*pBlendColor = MakeSpecialColormap(AddSpecialColormap(r, g, b, !!inv));
+	if (PROP_PARM_COUNT == 3)
+	{
+		PROP_FLOAT_PARM(r, 0);
+		PROP_FLOAT_PARM(g, 1);
+		PROP_FLOAT_PARM(b, 2);
+		*pBlendColor = MakeSpecialColormap(AddSpecialColormap(0, 0, 0, r, g, b));
+	}
+	else if (PROP_PARM_COUNT == 6)
+	{
+		PROP_FLOAT_PARM(r1, 0);
+		PROP_FLOAT_PARM(g1, 1);
+		PROP_FLOAT_PARM(b1, 2);
+		PROP_FLOAT_PARM(r2, 0);
+		PROP_FLOAT_PARM(g2, 1);
+		PROP_FLOAT_PARM(b2, 2);
+		*pBlendColor = MakeSpecialColormap(AddSpecialColormap(r1, g1, b1, r2, g2, b2));
+	}
+	else
+	{
+		I_Error("\"power.colormap\" must have either 3 or 6 parameters\n");
+	}
 }
 
 //==========================================================================

src/v_palette.cpp

@@ -66,27 +66,26 @@ BYTE DesaturateColormap[31][256];
 
 struct FSpecialColormapParameters
 {
-	float Colorize[3];
-	bool Inverted;
+	float Start[3], End[3];
 };
 
 static FSpecialColormapParameters SpecialColormapParms[] =
 {
 	// Doom invulnerability is an inverted grayscale.
 	// Strife uses it when firing the Sigil
-	{ {    1,    1,   1 }, true },
+	{ {    1,    1,   1 }, { 0, 0, 0 } },
 
 	// Heretic invulnerability is a golden shade.
-	{ {  1.5, 0.75,   0 }, false },
+	{ { 0, 0, 0 }, {  1.5, 0.75,   0 }, },
 
 	// [BC] Build the Doomsphere colormap. It is red!
-	{ {  1.5,    0,   0 }, false },
+	{ { 0, 0, 0 }, {  1.5,    0,   0 } },
 
 	// [BC] Build the Guardsphere colormap. It's a greenish-white kind of thing.
-	{ { 1.25,  1.5,   1 }, false },
+	{ { 0, 0, 0 }, { 1.25,  1.5,   1 } },
 
 	// Build a blue colormap.
-	{ {    0,    0, 1.5 }, false },
+	{{ 0, 0, 0 },  {    0,    0, 1.5 } },
 };
 
 static void FreeSpecialLights();
@@ -361,14 +360,24 @@ static bool FixBuildPalette (BYTE *opal, int lump, bool blood)
 	return true;
 }
 
-int AddSpecialColormap(double r, double g, double b, bool inv)
+int AddSpecialColormap(double r1, double g1, double b1, double r2, double g2, double b2)
 {
+	// Clamp these in range for the hardware shader.
+	r1 = clamp(r1, 0.0, 2.0);
+	g1 = clamp(g1, 0.0, 2.0);
+	b1 = clamp(b1, 0.0, 2.0);
+	r2 = clamp(r2, 0.0, 2.0);
+	g2 = clamp(g2, 0.0, 2.0);
+	b2 = clamp(b2, 0.0, 2.0);
+
 	for(unsigned i=0; i<SpecialColormaps.Size(); i++)
 	{
-		if (SpecialColormaps[i].Colorize[0] == r &&
-			SpecialColormaps[i].Colorize[1] == g &&
-			SpecialColormaps[i].Colorize[2] == b &&
-			SpecialColormaps[i].Inverted == inv)
+		if (SpecialColormaps[i].ColorizeStart[0] == r1 &&
+			SpecialColormaps[i].ColorizeStart[1] == g1 &&
+			SpecialColormaps[i].ColorizeStart[2] == b1 &&
+			SpecialColormaps[i].ColorizeEnd[0] == r2 &&
+			SpecialColormaps[i].ColorizeEnd[1] == g2 &&
+			SpecialColormaps[i].ColorizeEnd[2] == b2)
 		{
 			return i;	// The map already exists
 		}
@@ -376,35 +385,34 @@ int AddSpecialColormap(double r, double g, double b, bool inv)
 
 	FSpecialColormap *cm = &SpecialColormaps[SpecialColormaps.Reserve(1)];
 
-	cm->Colorize[0] = float(r);
-	cm->Colorize[1] = float(g);
-	cm->Colorize[2] = float(b);
-	cm->Inverted = inv;
+	cm->ColorizeStart[0] = float(r1);
+	cm->ColorizeStart[1] = float(g1);
+	cm->ColorizeStart[2] = float(b1);
+	cm->ColorizeEnd[0] = float(r2);
+	cm->ColorizeEnd[1] = float(g2);
+	cm->ColorizeEnd[2] = float(b2);
+
+	r2 -= r1;
+	g2 -= g1;
+	b2 -= b1;
+	r1 *= 255;
+	g1 *= 255;
+	b1 *= 255;
 
 	for (int c = 0; c < 256; c++)
 	{
 		double intensity = (GPalette.BaseColors[c].r * 77 +
 							GPalette.BaseColors[c].g * 143 +
 							GPalette.BaseColors[c].b * 37) / 256.0;
-		if (inv)
-		{
-			intensity = 255 - intensity;
-		}
 
-		PalEntry pe = PalEntry(	MIN(255, int(intensity*r)), 
-								MIN(255, int(intensity*g)), 
-								MIN(255, int(intensity*b)));
+		PalEntry pe = PalEntry(	MIN(255, int(r1 + intensity*r2)), 
+								MIN(255, int(g1 + intensity*g2)), 
+								MIN(255, int(b1 + intensity*b2)));
 
 		cm->Colormap[c] = ColorMatcher.Pick(pe);
 
 		// This table is used by the texture composition code
-		for(int i = 0;i < 256; i++)
-		{
-			intensity = inv? 255-i : i;
-			cm->GrayscaleToColor[i] = PalEntry(	MIN(255, int(intensity*r)), 
-												MIN(255, int(intensity*g)), 
-												MIN(255, int(intensity*b)));
-		}
+		cm->GrayscaleToColor[c] = pe;
 	}
 	return SpecialColormaps.Size() - 1;
 }
@@ -456,8 +464,9 @@ void InitPalette ()
 
 	for (int i = 0; i < countof(SpecialColormapParms); ++i)
 	{
-		AddSpecialColormap(SpecialColormapParms[i].Colorize[0], SpecialColormapParms[i].Colorize[1],
-			SpecialColormapParms[i].Colorize[2], SpecialColormapParms[i].Inverted);
+		AddSpecialColormap(SpecialColormapParms[i].Start[0], SpecialColormapParms[i].Start[1],
+			SpecialColormapParms[i].Start[2], SpecialColormapParms[i].End[0],
+			SpecialColormapParms[i].End[1], SpecialColormapParms[i].End[2]);
 	}
 	// desaturated colormaps
 	for(int m = 0; m < 31; m++)

src/v_palette.h

@@ -97,8 +97,8 @@ enum
 
 struct FSpecialColormap
 {
-	float Colorize[3];
-	bool Inverted;
+	float ColorizeStart[3];
+	float ColorizeEnd[3];
 	BYTE Colormap[256];
 	PalEntry GrayscaleToColor[256];
 };
@@ -124,7 +124,7 @@ inline int GetSpecialColormap(int blend)
 	return IsSpecialColormap(blend) ? blend & 0xFFFF : NOFIXEDCOLORMAP;
 }
 
-int AddSpecialColormap(double r, double g, double b, bool inv);
+int AddSpecialColormap(double r1, double g1, double b1, double r2, double g2, double b2);
 
 
 
@@ -152,7 +152,7 @@ void V_SetBlend (int blendr, int blendg, int blendb, int blenda);
 // V_ForceBlend()
 //
 // Normally, V_SetBlend() does nothing if the new blend is the
-// same as the old. This function will performing the blending
+// same as the old. This function will perform the blending
 // even if the blend hasn't changed.
 void V_ForceBlend (int blendr, int blendg, int blendb, int blenda);
 

src/win32/fb_d3d9.cpp

@@ -224,9 +224,7 @@ const char *const D3DFB::ShaderNames[D3DFB::NUM_SHADERS] =
 	"VertexColor.pso",
 
 	"SpecialColormap.pso",
-	"SpecialColormapInv.pso",
 	"SpecialColorMapPal.pso",
-	"SpecialColorMapPalInv.pso",
 
 	"InGameColormap.pso",
 	"InGameColormapDesat.pso",
@@ -2984,8 +2982,7 @@ void D3DFB::EndQuadBatch()
 		{
 			int select;
 
-			select = !!(quad->Flags & BQF_InvertSource);
-			select |= !!(quad->Flags & BQF_Paletted) << 1;
+			select = !!(quad->Flags & BQF_Paletted);
 			SetPixelShader(Shaders[SHADER_SpecialColormap + select]);
 		}
 		else if (quad->ShaderNum == BQS_InGameColormap)
@@ -3115,47 +3112,7 @@ bool D3DFB::SetStyle(D3DTex *tex, DrawParms &parms, D3DCOLOR &color0, D3DCOLOR &
 
 	SetColorOverlay(parms.colorOverlay, alpha, color0, color1);
 
-	if (parms.specialcolormap != NULL)
-	{ // Emulate an invulnerability or similar colormap.
-		if (style.Flags & STYLEF_InvertSource)
-		{
-			quad.Flags |= BQF_InvertSource;
-		}
-		if (fmt == D3DFMT_L8)
-		{
-			quad.Flags |= BQF_GamePalette;
-		}
-		quad.ShaderNum = BQS_SpecialColormap;
-		color0 = D3DCOLOR_COLORVALUE(parms.specialcolormap->Colorize[0]/2,
-			parms.specialcolormap->Colorize[1]/2, parms.specialcolormap->Colorize[2]/2, 1);
-		color1 = D3DCOLOR_ARGB(255,0,0,0);
-	}
-	else if (parms.colormapstyle != NULL)
-	{ // Emulate the fading from an in-game colormap (colorized, faded, and desaturated)
-		if (style.Flags & STYLEF_InvertSource)
-		{
-			quad.Flags |= BQF_InvertSource;
-		}
-		if (fmt == D3DFMT_L8)
-		{
-			quad.Flags |= BQF_GamePalette;
-		}
-		if (parms.colormapstyle->Desaturate != 0)
-		{
-			quad.Flags |= BQF_Desaturated;
-		}
-		quad.ShaderNum = BQS_InGameColormap;
-		color0 = D3DCOLOR_ARGB(parms.colormapstyle->Desaturate,
-			parms.colormapstyle->Color.r,
-			parms.colormapstyle->Color.g,
-			parms.colormapstyle->Color.b);
-		double fadelevel = parms.colormapstyle->FadeLevel;
-		color1 = D3DCOLOR_ARGB(DWORD((1 - fadelevel) * 255),
-			DWORD(parms.colormapstyle->Fade.r * fadelevel),
-			DWORD(parms.colormapstyle->Fade.g * fadelevel),
-			DWORD(parms.colormapstyle->Fade.b * fadelevel));
-	}
-	else if (style.Flags & STYLEF_ColorIsFixed)
+	if (style.Flags & STYLEF_ColorIsFixed)
 	{
 		if (style.Flags & STYLEF_InvertSource)
 		{ // Since the source color is a constant, we can invert it now
@@ -3219,10 +3176,42 @@ bool D3DFB::SetStyle(D3DTex *tex, DrawParms &parms, D3DCOLOR &color0, D3DCOLOR &
 		{
 			quad.Flags |= BQF_InvertSource;
 		}
+
+		if (parms.specialcolormap != NULL)
+		{ // Emulate an invulnerability or similar colormap.
+			float *start, *end;
+			start = parms.specialcolormap->ColorizeStart;
+			end = parms.specialcolormap->ColorizeEnd;
+			if (quad.Flags & BQF_InvertSource)
+			{
+				quad.Flags &= ~BQF_InvertSource;
+				swap(start, end);
+			}
+			quad.ShaderNum = BQS_SpecialColormap;
+			color0 = D3DCOLOR_RGBA(DWORD(start[0]/2*255), DWORD(start[1]/2*255), DWORD(start[2]/2*255), color0 >> 24);
+			color1 = D3DCOLOR_RGBA(DWORD(end[0]/2*255), DWORD(end[1]/2*255), DWORD(end[2]/2*255), color1 >> 24);
+		}
+		else if (parms.colormapstyle != NULL)
+		{ // Emulate the fading from an in-game colormap (colorized, faded, and desaturated)
+			if (parms.colormapstyle->Desaturate != 0)
+			{
+				quad.Flags |= BQF_Desaturated;
+			}
+			quad.ShaderNum = BQS_InGameColormap;
+			color0 = D3DCOLOR_ARGB(parms.colormapstyle->Desaturate,
+				parms.colormapstyle->Color.r,
+				parms.colormapstyle->Color.g,
+				parms.colormapstyle->Color.b);
+			double fadelevel = parms.colormapstyle->FadeLevel;
+			color1 = D3DCOLOR_ARGB(DWORD((1 - fadelevel) * 255),
+				DWORD(parms.colormapstyle->Fade.r * fadelevel),
+				DWORD(parms.colormapstyle->Fade.g * fadelevel),
+				DWORD(parms.colormapstyle->Fade.b * fadelevel));
+		}
 	}
 
 	// For unmasked images, force the alpha from the image data to be ignored.
-	if (!parms.masked)
+	if (!parms.masked && quad.ShaderNum != BQS_InGameColormap)
 	{
 		color0 = (color0 & D3DCOLOR_RGBA(255, 255, 255, 0)) | D3DCOLOR_COLORVALUE(0, 0, 0, alpha);
 		color1 &= D3DCOLOR_RGBA(255, 255, 255, 0);

src/win32/win32iface.h

@@ -310,9 +310,7 @@ private:
 		SHADER_VertexColor,
 
 		SHADER_SpecialColormap,
-		SHADER_SpecialColormapInv,
 		SHADER_SpecialColorMapPal,
-		SHADER_SpecialColorMapPalInv,
 
 		SHADER_InGameColormap,
 		SHADER_InGameColormapDesat,

wadsrc/static/shaders/d3d/shaders.ps

@@ -59,13 +59,15 @@ float4 VertexColor(float4 color : COLOR0) : COLOR
 
 // Emulate one of the special colormaps. (Invulnerability, gold, etc.)
 
-float4 SpecialColormap(float2 tex_coord : TEXCOORD0, float4 icolor : COLOR0) : COLOR
+float4 SpecialColormap(float2 tex_coord : TEXCOORD0, float4 start : COLOR0, float4 end : COLOR1) : COLOR
 {
-	// We can't store values greater than 1.0 in a color register, so we multiply
-	// intensity by 2 and expect the caller to divide icolor by 2.
 	float4 color = SampleTexture(tex_coord);
-	float intensity = 2 * Grayscale(color);
-	color.rgb = icolor.rgb * intensity;
+	float4 range = end - start;
+	// We can't store values greater than 1.0 in a color register, so we multiply
+	// the final result by 2 and expect the caller to divide the start and end by 2.
+	color.rgb = 2 * (start + Grayscale(color) * range);
+	// Duplicate alpha semantics of NormalColor.
+	color.a = start.a + color.a * end.a;
 	return color;
 }
 

wadsrc/static/shaders/d3d/sm14/build.bat

@@ -9,9 +9,7 @@ fxc ..\shaders.ps /Tps_1_4 /LD -DPS14=1 /ERedToAlpha -DINVERT=1 /FoRedToAlphaInv
 fxc ..\shaders.ps /Tps_1_4 /LD -DPS14=1 /EVertexColor /FoVertexColor.pso
 
 fxc ..\shaders.ps /Tps_1_4 /LD -DPS14=1 /ESpecialColormap -DPALTEX=0 -DINVERT=0 /FoSpecialColormap.pso
-fxc ..\shaders.ps /Tps_1_4 /LD -DPS14=1 /ESpecialColormap -DPALTEX=0 -DINVERT=1 /FoSpecialColormapInv.pso
 fxc ..\shaders.ps /Tps_1_4 /LD -DPS14=1 /ESpecialColormap -DPALTEX=1 -DINVERT=0 /FoSpecialColormapPal.pso
-fxc ..\shaders.ps /Tps_1_4 /LD -DPS14=1 /ESpecialColormap -DPALTEX=1 -DINVERT=1 /FoSpecialColormapPalInv.pso
 
 fxc ..\shaders.ps /Tps_1_4 /LD -DPS14=1 /EInGameColormap -DPALTEX=0 -DINVERT=0 -DDESAT=0 /FoInGameColormap.pso
 fxc ..\shaders.ps /Tps_1_4 /LD -DPS14=1 /EInGameColormap -DPALTEX=0 -DINVERT=0 -DDESAT=1 /FoInGameColormapDesat.pso

wadsrc/static/shaders/d3d/sm20/build.bat

@@ -9,9 +9,7 @@ fxc ..\shaders.ps /Tps_2_0 /O3 /ERedToAlpha -DINVERT=1 /FoRedToAlphaInv.pso
 fxc ..\shaders.ps /Tps_2_0 /O3 /EVertexColor /FoVertexColor.pso
 
 fxc ..\shaders.ps /Tps_2_0 /O3 /ESpecialColormap -DPALTEX=0 -DINVERT=0 /FoSpecialColormap.pso
-fxc ..\shaders.ps /Tps_2_0 /O3 /ESpecialColormap -DPALTEX=0 -DINVERT=1 /FoSpecialColormapInv.pso
 fxc ..\shaders.ps /Tps_2_0 /O3 /ESpecialColormap -DPALTEX=1 -DINVERT=0 /FoSpecialColormapPal.pso
-fxc ..\shaders.ps /Tps_2_0 /O3 /ESpecialColormap -DPALTEX=1 -DINVERT=1 /FoSpecialColormapPalInv.pso
 
 fxc ..\shaders.ps /Tps_2_0 /O3 /EInGameColormap -DPALTEX=0 -DINVERT=0 -DDESAT=0 /FoInGameColormap.pso
 fxc ..\shaders.ps /Tps_2_0 /O3 /EInGameColormap -DPALTEX=0 -DINVERT=0 -DDESAT=1 /FoInGameColormapDesat.pso

wadsrc/static/shaders/d3d/sm30/build.bat

@@ -9,9 +9,7 @@ fxc ..\shaders.ps /Tps_3_0 /O3 /ERedToAlpha -DINVERT=1 /FoRedToAlphaInv.pso
 fxc ..\shaders.ps /Tps_3_0 /O3 /EVertexColor /FoVertexColor.pso
 
 fxc ..\shaders.ps /Tps_3_0 /O3 /ESpecialColormap -DPALTEX=0 -DINVERT=0 /FoSpecialColormap.pso
-fxc ..\shaders.ps /Tps_3_0 /O3 /ESpecialColormap -DPALTEX=0 -DINVERT=1 /FoSpecialColormapInv.pso
 fxc ..\shaders.ps /Tps_3_0 /O3 /ESpecialColormap -DPALTEX=1 -DINVERT=0 /FoSpecialColormapPal.pso
-fxc ..\shaders.ps /Tps_3_0 /O3 /ESpecialColormap -DPALTEX=1 -DINVERT=1 /FoSpecialColormapPalInv.pso
 
 fxc ..\shaders.ps /Tps_3_0 /O3 /EInGameColormap -DPALTEX=0 -DINVERT=0 -DDESAT=0 /FoInGameColormap.pso
 fxc ..\shaders.ps /Tps_3_0 /O3 /EInGameColormap -DPALTEX=0 -DINVERT=0 -DDESAT=1 /FoInGameColormapDesat.pso