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materialsystem/stdshaders/sprite_ps2x.fxc

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+// STATIC: "CONVERT_TO_SRGB"		"0..1"	[ps20b][= g_pHardwareConfig->NeedsShaderSRGBConversion()] [PC]
+// STATIC: "CONVERT_TO_SRGB"		"0..0"	[= 0] [XBOX]
+// STATIC: "VERTEXCOLOR"			"0..1"
+// STATIC: "CONSTANTCOLOR"			"0..1"
+// STATIC: "HDRTYPE"				"0..2"
+// STATIC: "SRGB"					"0..1"
+// STATIC: "SRGB_OUTPUT_ADAPTER"	"0..1"	[ps20b]
+
+// DYNAMIC: "HDRENABLED"			"0..1"
+// DYNAMIC: "PIXELFOGTYPE"			"0..1"
+
+#include "common_ps_fxc.h"
+#include "shader_constant_register_map.h"
+
+const HALF4 g_Color					: register( c0 );
+const float g_HDRColorScale			: register( c1 );
+
+const float4 g_FogParams				: register( PSREG_FOG_PARAMS );
+const float4 g_EyePos_SpecExponent		: register( PSREG_EYEPOS_SPEC_EXPONENT );
+
+sampler TexSampler	: register( s0 );
+
+struct PS_INPUT
+{
+	HALF2 baseTexCoord				: TEXCOORD0;		// Base texture coordinate
+	float4 color					: TEXCOORD2;		// Vertex color (from lighting or unlit)
+	
+	float4 worldPos_projPosZ		: TEXCOORD7;		// Necessary for pixel fog
+};
+
+float4 main( PS_INPUT i ) : COLOR
+{
+	float4 result, sample = tex2D( TexSampler, i.baseTexCoord );
+
+#if VERTEXCOLOR
+	sample *= i.color;
+#endif
+
+#if CONSTANTCOLOR
+	sample *= g_Color;
+#endif
+	
+#if HDRTYPE && HDRENABLED
+	sample.xyz *= g_HDRColorScale;
+#endif
+
+	float fogFactor = CalcPixelFogFactor( PIXELFOGTYPE, g_FogParams, g_EyePos_SpecExponent.z, i.worldPos_projPosZ.z, i.worldPos_projPosZ.w );
+#if SRGB
+	result = FinalOutput( sample, fogFactor, PIXELFOGTYPE, TONEMAP_SCALE_LINEAR );
+#else
+	result = FinalOutput( sample, fogFactor, PIXELFOGTYPE, TONEMAP_SCALE_GAMMA );
+#endif
+
+	// On Posix, we're being forced through a linear-to-gamma curve but don't want it, so we do the opposite here first
+#if SRGB_OUTPUT_ADAPTER
+	result = GammaToLinear( result );
+#endif
+
+	return result;
+}
+