Source release of Wolfenstein 3D Classic Platinum for iOS, 1.1

2026-03-20 00:49:35 +01:00 · 2012-01-31 16:55:36 -06:00
parent e20e553baf
commit a82aba6b94
421 changed files with 68803 additions and 0 deletions
--- a/wolf3d/code/env/opengl_texture.c
+++ b/wolf3d/code/env/opengl_texture.c
@@ -0,0 +1,253 @@
+/*
+
+	Copyright (C) 2004 Michael Liebscher
+	Copyright (C) 1997-2001 Id Software, Inc.
+
+	This program is free software; you can redistribute it and/or
+	modify it under the terms of the GNU General Public License
+	as published by the Free Software Foundation; either version 2
+	of the License, or (at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with this program; if not, write to the Free Software
+	Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+*/
+
+/*
+ *	opengl_texture.c:  OpenGL Texture Manager.
+ *	
+ *	Author:	Michael Liebscher <johnnycanuck@users.sourceforge.net>
+ *	Date:	2004 
+ *
+ *	Acknowledgement:
+ *	Portion of this code was derived from Quake II, and was originally
+ *	written by Id Software, Inc.
+ *
+ */
+ 
+#include "../wolfiphone.h"
+
+int currentTextures[ 4 ];
+int currenttmu;
+
+int glMaxTexSize;
+
+// ***************************************************************************
+
+// ***************************************************************************
+
+
+
+
+/*
+-----------------------------------------------------------------------------
+ Function: 
+ 
+ Parameters:
+ 
+ Returns:
+ 
+ Notes: 
+
+-----------------------------------------------------------------------------
+*/
+PUBLIC void R_DeleteTexture( unsigned int texnum )
+{
+	pfglDeleteTextures( 1, &texnum );
+}
+
+/*
+-----------------------------------------------------------------------------
+ Function: 
+ 
+ Parameters:
+ 
+ Returns:
+ 
+ Notes: 
+
+-----------------------------------------------------------------------------
+*/
+PUBLIC void R_TexEnv( GLenum mode )
+{
+	static int lastmodes[ 4 ] = { -1, -1, -1, -1 };
+
+	if ( mode != lastmodes[ currenttmu ] )
+	{
+		pfglTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, mode );
+		lastmodes[ currenttmu ] = mode;
+	}
+}
+
+/*
+-----------------------------------------------------------------------------
+ Function: 
+ 
+ Parameters:
+ 
+ Returns:
+ 
+ Notes: 
+
+-----------------------------------------------------------------------------
+*/
+PUBLIC void R_SelectTexture( GLenum texture )
+{
+	int tmu;
+
+#ifndef IPHONE
+	if( ! pfglActiveTextureARB )
+	{
+		return;
+	}
+#endif
+
+	if( texture == GL_TEXTURE0 )
+	{
+		tmu = 0;
+	}
+	else if( texture == GL_TEXTURE1 )
+	{
+		tmu = 1;
+	}
+	else if( texture == GL_TEXTURE2 )
+	{
+		tmu = 2;
+	}
+	else
+	{
+		tmu = 3;
+	}
+
+	if( tmu == currenttmu )
+	{
+		return;
+	}
+	
+
+	currenttmu = tmu;
+
+	pfglActiveTextureARB( texture );
+	pfglClientActiveTextureARB( texture );
+
+}
+
+
+/*
+-----------------------------------------------------------------------------
+ Function: 
+ 
+ Parameters:
+ 
+ Returns:
+ 
+ Notes: 
+
+-----------------------------------------------------------------------------
+*/
+PUBLIC void R_Bind( int texnum )
+{
+	// Is this texture already bound 
+	if( currentTextures[ currenttmu ] == texnum )
+	{
+		return;
+	}
+
+	currentTextures[ currenttmu ] = texnum;
+
+	pfglBindTexture( GL_TEXTURE_2D, texnum );
+}
+
+/*
+-----------------------------------------------------------------------------
+ Function: 
+ 
+ Parameters:
+ 
+ Returns:
+ 
+ Notes: 
+
+-----------------------------------------------------------------------------
+*/
+PUBLIC void R_MBind( GLenum target, int texnum )
+{
+	R_SelectTexture( target );
+
+	if( target == GL_TEXTURE0 )
+	{
+		if ( currentTextures[ 0 ] == texnum )
+		{
+			return;
+		}
+	}
+	else if( target == GL_TEXTURE1 )
+	{
+		if( currentTextures[ 1 ] == texnum )
+		{
+			return;
+		}
+	}
+	else if( target == GL_TEXTURE2 )
+	{
+		if( currentTextures[ 2 ] == texnum )
+		{
+			return;
+		}
+	}
+	else
+	{
+		if( currentTextures[ 3 ] == texnum )
+		{
+			return;
+		}
+	}
+
+	R_Bind( texnum );
+}
+
+/*
+-----------------------------------------------------------------------------
+ Function: 
+ 
+ Parameters:
+ 
+ Returns:
+ 
+ Notes: 
+
+-----------------------------------------------------------------------------
+*/
+PUBLIC void R_EnableMultitexture( _boolean enable )
+{
+#ifndef IPHONE
+	if( ! pfglActiveTextureARB )
+	{
+		return;
+	}
+#endif
+	
+	if( enable )
+	{
+		R_SelectTexture( GL_TEXTURE1 );
+		pfglEnable( GL_TEXTURE_2D );
+		R_TexEnv( GL_REPLACE );
+	}
+	else
+	{
+		R_SelectTexture( GL_TEXTURE1 );
+		pfglDisable( GL_TEXTURE_2D );
+		R_TexEnv( GL_REPLACE );
+	}
+
+	R_SelectTexture( GL_TEXTURE0 );
+	R_TexEnv( GL_REPLACE );
+	
+}
+