1HEADmaster

1 files changed, 175 insertions, 0 deletions

diff --git a/engine/decals.cpp b/engine/decals.cpp
new file mode 100644
index 0000000..d7de712
--- /dev/null
+++ b/engine/decals.cpp
@@ -0,0 +1,175 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// Functionality common to wad and decal code in gl_draw.c and draw.c
+//
+//===========================================================================//
+#include "render_pch.h"
+#include "decal.h"
+#include "decal_private.h"
+#include "zone.h"
+#include "sys.h"
+#include "gl_matsysiface.h"
+#include "filesystem.h"
+#include "filesystem_engine.h"
+#include "materialsystem/imaterial.h"
+#include <malloc.h>
+#include "utldict.h"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+struct DecalEntry
+{
+#ifdef _DEBUG
+	char		*m_pDebugName;	// only used in debug builds
+#endif
+	IMaterial	*material;
+	int			index;
+};
+
+// This stores the list of all decals
+CUtlMap< FileNameHandle_t, DecalEntry >	g_DecalDictionary( 0, 0, DefLessFunc( FileNameHandle_t ) );
+
+// This is a list of indices into the dictionary.
+// This list is indexed by network id, so it maps network ids to decal dictionary entries
+CUtlVector< int > g_DecalLookup;
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Output : int
+//-----------------------------------------------------------------------------
+int Draw_DecalMax( void )
+{
+	return g_nMaxDecals;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Sets the name of the bitmap from decals.wad to be used in a specific slot #
+// called from cl_parse.cpp twice
+// This sets the name of a decal prototype texture
+// Input  : decal - 
+//			*name - 
+//-----------------------------------------------------------------------------
+// called from gl_rsurf.cpp
+IMaterial *Draw_DecalMaterial( int index )
+{
+	if ( index < 0 || index >= g_DecalLookup.Count() )
+		return NULL;
+
+	int slot = g_DecalLookup[index];
+	if ( slot < 0 || slot >= (int)g_DecalDictionary.MaxElement() )
+		return NULL;
+
+	DecalEntry * entry = &g_DecalDictionary[slot];
+	
+	if ( entry )
+	{
+		return entry->material;
+	}
+	else
+	{
+		return NULL;
+	}
+}
+
+#ifndef SWDS
+void Draw_DecalSetName( int decal, char *name )
+{
+	while ( decal >= g_DecalLookup.Count() )
+	{
+		MEM_ALLOC_CREDIT();
+		int idx = g_DecalLookup.AddToTail();
+		g_DecalLookup[idx] = g_DecalDictionary.InvalidIndex();
+	}
+
+	FileNameHandle_t fnHandle = g_pFileSystem->FindOrAddFileName( name );
+	int lookup = g_DecalDictionary.Find( fnHandle );
+	if ( lookup == g_DecalDictionary.InvalidIndex() )
+	{
+		DecalEntry entry;
+#ifdef _DEBUG
+		int len = strlen(name) + 1;
+		entry.m_pDebugName = new char[len];
+		memcpy( entry.m_pDebugName, name, len );
+#endif
+		entry.material = GL_LoadMaterial( name, TEXTURE_GROUP_DECAL );
+		entry.index = decal;
+
+		lookup = g_DecalDictionary.Insert( fnHandle, entry );
+	}
+	else
+	{
+		g_DecalDictionary[lookup].index = decal;
+	}
+
+	g_DecalLookup[decal] = lookup;
+}
+
+
+
+// called from cl_parse.cpp
+// find the server side decal id given it's name.
+// used for save/restore
+int Draw_DecalIndexFromName( char *name, bool *found )
+{
+	Assert( found );
+
+	FileNameHandle_t fnHandle = g_pFileSystem->FindOrAddFileName( name );
+	int lookup = g_DecalDictionary.Find( fnHandle );
+	if ( lookup == g_DecalDictionary.InvalidIndex() )
+	{
+		if ( found )
+		{
+			*found = false;
+		}
+		return 0;
+	}
+
+	if ( found )
+	{
+		*found = true;
+	}
+	return g_DecalDictionary[lookup].index;
+}
+#endif
+
+
+const char *Draw_DecalNameFromIndex( int index )
+{
+#if !defined(SWDS)
+	return g_DecalDictionary[index].material ? g_DecalDictionary[index].material->GetName() : "";
+#else
+	return "";
+#endif
+}
+
+// This is called to reset all loaded decals
+// called from cl_parse.cpp and host.cpp
+void Decal_Init( void )
+{
+	Decal_Shutdown();
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void Decal_Shutdown( void )
+{
+	for ( int index = g_DecalDictionary.FirstInorder(); index != g_DecalDictionary.InvalidIndex(); index = g_DecalDictionary.NextInorder(index) )
+	{
+		IMaterial *mat = g_DecalDictionary[index].material;
+		if ( mat )
+		{
+			GL_UnloadMaterial( mat );
+		}
+#ifdef _DEBUG
+		delete[] g_DecalDictionary[index].m_pDebugName;
+#endif
+	}
+	g_DecalLookup.Purge();
+	g_DecalDictionary.RemoveAll();
+}
+