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materialsystem/stdshaders/Downsample_nohdr_ps2x.fxc

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+// STATIC: "SRGB_ADAPTER"		"0..1"  [ps20b] [PC]
+// STATIC: "CONVERT_TO_SRGB"	"0..1"	[ps20b] [= g_pHardwareConfig->NeedsShaderSRGBConversion()] [PC]
+// STATIC: "CONVERT_TO_SRGB"	"0..0"	[= 0] [XBOX]
+// STATIC: "CSTRIKE"			"0..1"
+
+#define HDRTYPE HDR_TYPE_NONE
+#include "common_ps_fxc.h"
+
+sampler TexSampler	: register( s0 );
+float4 params : register( c0 );
+
+struct PS_INPUT
+{
+	float2 coordTap0				: TEXCOORD0;
+	float2 coordTap1				: TEXCOORD1;
+	float2 coordTap2				: TEXCOORD2;
+	float2 coordTap3				: TEXCOORD3;
+};
+
+#if ( CSTRIKE == 0 )
+	//---------------------------------------//
+	// Everything but Counter-Strike: Source //
+	//---------------------------------------//
+	float4 Shape( float2 uv )
+	{
+		float4 pixel = tex2D( TexSampler, uv );
+
+		#if ( SRGB_ADAPTER == 1 )
+		{
+			pixel.rgb = LinearToGamma( pixel.rgb );
+		}
+		#endif
+
+		float lum = dot( pixel.xyz, params.xyz );
+		pixel.xyz = pow( pixel.xyz, params.w ) * lum;
+
+		#if ( SRGB_ADAPTER == 1 )
+		{
+			pixel.rgb = GammaToLinear( pixel.rgb );
+		}
+		#endif
+
+		return pixel;
+	}
+
+	float4 main( PS_INPUT i ) : COLOR
+	{
+		float4 s0, s1, s2, s3;
+
+		// Sample 4 taps
+		s0 = Shape( i.coordTap0 );
+		s1 = Shape( i.coordTap1 );
+		s2 = Shape( i.coordTap2 );
+		s3 = Shape( i.coordTap3 );
+
+		float4 avgColor = ( s0 + s1 + s2 + s3 ) * 0.25f;
+		return FinalOutput( avgColor, 0, PIXEL_FOG_TYPE_NONE, TONEMAP_SCALE_NONE );
+	}
+#else
+	//------------------------//
+	// Counter-Strike: Source //
+	//------------------------//
+	float3 Shape( float3 s )
+	{
+		float lum = ( 0.3f * s.x ) + ( 0.59f * s.y ) + ( 0.11f * s.z );
+		return lum * s;
+	}
+
+	float4 main( PS_INPUT i ) : COLOR
+	{
+		float3 s0, s1, s2, s3;
+
+		// Sample 4 taps
+		s0 = Shape( GammaToLinear( tex2D( TexSampler, i.coordTap0 ) ) );
+		s1 = Shape( GammaToLinear( tex2D( TexSampler, i.coordTap1 ) ) );
+		s2 = Shape( GammaToLinear( tex2D( TexSampler, i.coordTap2 ) ) );
+		s3 = Shape( GammaToLinear( tex2D( TexSampler, i.coordTap3 ) ) );
+
+		float3 avgColor = ( s0 + s1 + s2 + s3 ) * 0.25f;
+		return float4( avgColor, 1.0f );
+	}
+#endif