// The contents of this file are subject to the Mozilla Public License
// Version 1.0 (the "License"); you may not use this file except in
// compliance with the License. You may obtain a copy of the License at
// http://www.mozilla.org/MPL/ 
// 
// Software distributed under the License is distributed on an "AS IS"
// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
// License for the specific language governing rights and limitations
// under the License. 
// 
// The Original Code is the Berkeley Open Infrastructure for Network Computing. 
// 
// The Initial Developer of the Original Code is the SETI@home project.
// Portions created by the SETI@home project are Copyright (C) 2002
// University of California at Berkeley. All Rights Reserved. 
// 
// Contributor(s):
//

/*
	Contains:	Functions to enable building and destorying a DSp fullscreen context

	Written by:	Geoff Stahl (ggs)

	Copyright:	Copyright © 1999 Apple Computer, Inc., All Rights Reserved

	Change History (most recent first):

         <2>     3/26/01    ggs     Add DSp version check and other items for full screen on X
         <1>     1/19/01    ggs     Initial re-add
         <4>     1/26/00    ggs     Add fade code back in, ensure NULL pointer/context checks are in
         <3>     1/24/00    ggs     Add C++ support
         <2>    12/18/99    ggs     Fix headers
         <1>    11/28/99    ggs     Initial add.  Split of just DSp handling functions.  Added total
                                    device RAM checks, better step downs using actual supported
                                    resolutions. Need to add user verify for contexts that require
                                    it, integration of this in context step down, and a freq bit
                                    field.
         <1>    11/11/99    ggs     Initial Add

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        Adapted to BOINC by Eric Heien
*/

// include control --------------------------------------------------

#ifndef SetupDSp_h
#define SetupDSp_h

// includes ---------------------------------------------------------

#include "mac_carbon_gl.h"

#ifdef __cplusplus
extern "C" {
#endif

// structures (public) -----------------------------------------------

enum { fadeTicks = 10 };

// public function declarations -------------------------------------

NumVersion GetDSpVersion (void);
OSStatus StartDSp (void);
void ShutdownDSp (void);

CGrafPtr GetDSpDrawable (DSpContextReference dspContext);
OSStatus BuildDSpContext (DSpContextReference* pdspContext, GDHandle hGD, GLint depthSizeSupport, pstructGLInfo pcontextInfo);
void DestroyDSpContext (DSpContextReference* pdspContext);

OSStatus DSpContext_CustomFadeGammaOut (DSpContextReference inContext, const RGBColor *fadeColor, long fadeTicks); 
OSStatus DSpContext_CustomFadeGammaIn (DSpContextReference inContext, const RGBColor *fadeColor,  long fadeTicks);

extern Boolean gDSpStarted;
extern Boolean gNeedFade;

#ifdef __cplusplus
}
#endif

#endif // SetupDSp_h