From 39ed87570bdb2f86969d4be821c94b722dc71179 Mon Sep 17 00:00:00 2001
From: Joe Ludwig <joe@valvesoftware.com>
Date: Wed, 26 Jun 2013 15:22:04 -0700
Subject: First version of the SOurce SDK 2013

---
 sp/src/utils/common/utilmatlib.cpp | 184 +++++++++++++++++++++++++++++++++++++
 1 file changed, 184 insertions(+)
 create mode 100644 sp/src/utils/common/utilmatlib.cpp

(limited to 'sp/src/utils/common/utilmatlib.cpp')

diff --git a/sp/src/utils/common/utilmatlib.cpp b/sp/src/utils/common/utilmatlib.cpp
new file mode 100644
index 00000000..962bb3f5
--- /dev/null
+++ b/sp/src/utils/common/utilmatlib.cpp
@@ -0,0 +1,184 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $Workfile:     $
+// $Date:         $
+// $NoKeywords: $
+//=============================================================================//
+
+// C callable material system interface for the utils.
+
+#include "materialsystem/imaterialsystem.h"
+#include "materialsystem/imaterial.h"
+#include "materialsystem/imaterialvar.h"
+#include <cmdlib.h>
+#include "utilmatlib.h"
+#include "tier0/dbg.h"
+#include <windows.h>
+#include "filesystem.h"
+#include "materialsystem/materialsystem_config.h"
+#include "mathlib/Mathlib.h"
+
+void LoadMaterialSystemInterface( CreateInterfaceFn fileSystemFactory )
+{
+	if( g_pMaterialSystem )
+		return;
+	
+	// materialsystem.dll should be in the path, it's in bin along with vbsp.
+	const char *pDllName = "materialsystem.dll";
+	CSysModule *materialSystemDLLHInst;
+	materialSystemDLLHInst = g_pFullFileSystem->LoadModule( pDllName );
+	if( !materialSystemDLLHInst )
+	{
+		Error( "Can't load MaterialSystem.dll\n" );
+	}
+
+	CreateInterfaceFn clientFactory = Sys_GetFactory( materialSystemDLLHInst );
+	if ( clientFactory )
+	{
+		g_pMaterialSystem = (IMaterialSystem *)clientFactory( MATERIAL_SYSTEM_INTERFACE_VERSION, NULL );
+		if ( !g_pMaterialSystem )
+		{
+			Error( "Could not get the material system interface from materialsystem.dll (" __FILE__ ")" );
+		}
+	}
+	else
+	{
+		Error( "Could not find factory interface in library MaterialSystem.dll" );
+	}
+
+	if (!g_pMaterialSystem->Init( "shaderapiempty.dll", 0, fileSystemFactory ))
+	{
+		Error( "Could not start the empty shader (shaderapiempty.dll)!" );
+	}
+}
+
+void InitMaterialSystem( const char *materialBaseDirPath, CreateInterfaceFn fileSystemFactory )
+{
+	LoadMaterialSystemInterface( fileSystemFactory );
+	MaterialSystem_Config_t config;
+	g_pMaterialSystem->OverrideConfig( config, false );
+}
+
+void ShutdownMaterialSystem( )
+{
+	if ( g_pMaterialSystem )
+	{
+		g_pMaterialSystem->Shutdown();
+		g_pMaterialSystem = NULL;
+	}
+}
+
+MaterialSystemMaterial_t FindMaterial( const char *materialName, bool *pFound, bool bComplain )
+{
+	IMaterial *pMat = g_pMaterialSystem->FindMaterial( materialName, TEXTURE_GROUP_OTHER, bComplain );
+	MaterialSystemMaterial_t matHandle = pMat;
+	
+	if ( pFound )
+	{
+		*pFound = true;
+		if ( IsErrorMaterial( pMat ) )
+			*pFound = false;
+	}
+
+	return matHandle;
+}
+
+void GetMaterialDimensions( MaterialSystemMaterial_t materialHandle, int *width, int *height )
+{
+	PreviewImageRetVal_t retVal;
+	ImageFormat dummyImageFormat;
+	IMaterial *material = ( IMaterial * )materialHandle;
+	bool translucent;
+	retVal = material->GetPreviewImageProperties( width, height, &dummyImageFormat, &translucent );
+	if (retVal != MATERIAL_PREVIEW_IMAGE_OK ) 
+	{
+#if 0
+		if (retVal == MATERIAL_PREVIEW_IMAGE_BAD ) 
+		{
+			Error( "problem getting preview image for %s", 
+				g_pMaterialSystem->GetMaterialName( materialInfo[matID].materialHandle ) );
+		}
+#else
+		*width = 128;
+		*height = 128;
+#endif
+	}
+}
+
+void GetMaterialReflectivity( MaterialSystemMaterial_t materialHandle, float *reflectivityVect )
+{
+	IMaterial *material = ( IMaterial * )materialHandle;
+	const IMaterialVar *reflectivityVar;
+
+	bool found;
+	reflectivityVar = material->FindVar( "$reflectivity", &found, false );
+	if( !found )
+	{
+		Vector tmp;
+		material->GetReflectivity( tmp );
+		VectorCopy( tmp.Base(), reflectivityVect );
+	}
+	else
+	{
+		reflectivityVar->GetVecValue( reflectivityVect, 3 );
+	}
+}
+
+int GetMaterialShaderPropertyBool( MaterialSystemMaterial_t materialHandle, int propID )
+{
+	IMaterial *material = ( IMaterial * )materialHandle;
+	switch( propID )
+	{
+	case UTILMATLIB_NEEDS_BUMPED_LIGHTMAPS:
+		return material->GetPropertyFlag( MATERIAL_PROPERTY_NEEDS_BUMPED_LIGHTMAPS );
+
+	case UTILMATLIB_NEEDS_LIGHTMAP:
+		return material->GetPropertyFlag( MATERIAL_PROPERTY_NEEDS_LIGHTMAP );
+
+	default:
+		Assert( 0 );
+		return 0;
+	}
+}
+
+int GetMaterialShaderPropertyInt( MaterialSystemMaterial_t materialHandle, int propID )
+{
+	IMaterial *material = ( IMaterial * )materialHandle;
+	switch( propID )
+	{
+	case UTILMATLIB_OPACITY:
+		if (material->IsTranslucent())
+			return UTILMATLIB_TRANSLUCENT;
+		if (material->IsAlphaTested())
+			return UTILMATLIB_ALPHATEST;
+		return UTILMATLIB_OPAQUE;
+
+	default:
+		Assert( 0 );
+		return 0;
+	}
+}
+
+const char *GetMaterialVar( MaterialSystemMaterial_t materialHandle, const char *propertyName )
+{
+	IMaterial *material = ( IMaterial * )materialHandle;
+	IMaterialVar *var;
+	bool found;
+	var = material->FindVar( propertyName, &found, false );
+	if( found )
+	{
+		return var->GetStringValue();
+	}
+	else
+	{
+		return NULL;
+	}
+}
+
+const char *GetMaterialShaderName( MaterialSystemMaterial_t materialHandle )
+{
+	IMaterial *material = ( IMaterial * )materialHandle;
+	return material->GetShaderName();
+}
-- 
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