1HEADmaster

1 files changed, 135 insertions, 0 deletions

diff --git a/materialsystem/stdshaders/shadow_dx8.cpp b/materialsystem/stdshaders/shadow_dx8.cpp
new file mode 100644
index 0000000..1dc9374
--- /dev/null
+++ b/materialsystem/stdshaders/shadow_dx8.cpp
@@ -0,0 +1,135 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $Header: $
+// $NoKeywords: $
+//=============================================================================//
+
+
+#include "BaseVSShader.h"
+
+#include "shadow_vs14.inc"
+#include "unlitgeneric_vs11.inc"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+DEFINE_FALLBACK_SHADER( Shadow, Shadow_DX8 )
+
+BEGIN_VS_SHADER_FLAGS( Shadow_DX8, "Help for Shadow_DX8", SHADER_NOT_EDITABLE )
+
+	BEGIN_SHADER_PARAMS
+	END_SHADER_PARAMS
+
+	SHADER_INIT_PARAMS()
+	{
+		// FIXME: Need fallback for dx5, don't fade out shadows, just pop them out
+		/*
+		The alpha blending state either must be:
+		Src Color * Dst Color + Dst Color * 0	
+		(src color = C*A + 1-A)
+
+		or
+
+		// Can't be this, doesn't work with fog
+		Src Color * Dst Color + Dst Color * (1-Src Alpha)	
+		(src color = C * A, Src Alpha = A)
+		*/
+	}
+
+	SHADER_FALLBACK
+	{
+		if ( IsPC() && g_pHardwareConfig->GetDXSupportLevel() < 80 )
+		{
+			return "Shadow_DX6";
+		}
+		return 0;
+	}
+
+	SHADER_INIT
+	{
+		LoadTexture( BASETEXTURE );
+	}
+
+	SHADER_DRAW
+	{
+		SHADOW_STATE
+		{
+			pShaderShadow->EnableTexture( SHADER_SAMPLER0, true );
+			if ( g_pHardwareConfig->SupportsPixelShaders_1_4() )
+			{
+				pShaderShadow->EnableTexture( SHADER_SAMPLER1, true );
+				pShaderShadow->EnableTexture( SHADER_SAMPLER2, true );
+				pShaderShadow->EnableTexture( SHADER_SAMPLER3, true );
+				pShaderShadow->EnableTexture( SHADER_SAMPLER4, true );
+			}
+
+			EnableAlphaBlending( SHADER_BLEND_DST_COLOR, SHADER_BLEND_ZERO );
+			unsigned int flags = VERTEX_POSITION | VERTEX_COLOR;
+			int numTexCoords = 1;
+			pShaderShadow->VertexShaderVertexFormat( flags, numTexCoords, 0, 0 );
+			if( g_pHardwareConfig->GetDXSupportLevel() >= 81 )
+			{
+				shadow_vs14_Static_Index vshIndex;
+				pShaderShadow->SetVertexShader( "Shadow_vs14", vshIndex.GetIndex() );
+				pShaderShadow->SetPixelShader( "Shadow_ps14" );
+			}
+			else
+			{
+				unlitgeneric_vs11_Static_Index vshIndex;
+				vshIndex.SetDETAIL( false );
+				vshIndex.SetENVMAP( false );
+				vshIndex.SetENVMAPCAMERASPACE( false );
+				vshIndex.SetENVMAPSPHERE( false );
+				vshIndex.SetVERTEXCOLOR( true );
+				vshIndex.SetSEPARATEDETAILUVS( false );
+				pShaderShadow->SetVertexShader( "UnlitGeneric_vs11", vshIndex.GetIndex() );
+				pShaderShadow->SetPixelShader( "Shadow" );
+			}
+			// We need to fog to *white* regardless of overbrighting...
+			FogToWhite();
+		}
+		DYNAMIC_STATE
+		{
+			BindTexture( SHADER_SAMPLER0, BASETEXTURE, FRAME );
+
+			SetVertexShaderTextureTransform( VERTEX_SHADER_SHADER_SPECIFIC_CONST_0, BASETEXTURETRANSFORM );
+			SetPixelShaderConstant( 1, COLOR );
+			if ( g_pHardwareConfig->GetDXSupportLevel() >= 81 )
+			{
+				BindTexture( SHADER_SAMPLER1, BASETEXTURE, FRAME );
+				BindTexture( SHADER_SAMPLER2, BASETEXTURE, FRAME );
+				BindTexture( SHADER_SAMPLER3, BASETEXTURE, FRAME );
+				BindTexture( SHADER_SAMPLER4, BASETEXTURE, FRAME );
+
+				// Get texture dimensions...
+				int nWidth = 16;
+				int nHeight = 16;
+				ITexture *pTexture = params[BASETEXTURE]->GetTextureValue();
+				if (pTexture)
+				{
+					nWidth = pTexture->GetActualWidth();
+					nHeight = pTexture->GetActualHeight();
+				}
+				Vector4D vecJitter( 1.0 / nWidth, 1.0 / nHeight, 0.0, 0.0 );
+				pShaderAPI->SetVertexShaderConstant( VERTEX_SHADER_SHADER_SPECIFIC_CONST_2, vecJitter.Base() );
+
+				vecJitter.y *= -1.0f;
+				pShaderAPI->SetVertexShaderConstant( VERTEX_SHADER_SHADER_SPECIFIC_CONST_3, vecJitter.Base() );
+
+				shadow_vs14_Dynamic_Index vshIndex;
+				vshIndex.SetDOWATERFOG( pShaderAPI->GetSceneFogMode() == MATERIAL_FOG_LINEAR_BELOW_FOG_Z );
+				pShaderAPI->SetVertexShaderIndex( vshIndex.GetIndex() );
+			}
+			else
+			{
+				unlitgeneric_vs11_Dynamic_Index vshIndex;
+				vshIndex.SetDOWATERFOG( pShaderAPI->GetSceneFogMode() == MATERIAL_FOG_LINEAR_BELOW_FOG_Z );
+				vshIndex.SetSKINNING( pShaderAPI->GetCurrentNumBones() > 0 );
+				pShaderAPI->SetVertexShaderIndex( vshIndex.GetIndex() );
+			}
+		}
+		Draw( );
+	}
+END_SHADER