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/* $Id: wmesa.h,v 1.1 2003-02-28 11:41:57 pj Exp $ */
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/*
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 * Mesa 3-D graphics library
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 * Version:  3.0
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 * Copyright (C) 1995-1998  Brian Paul
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 *
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 * This library is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Library General Public
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 * License as published by the Free Software Foundation; either
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 * version 2 of the License, or (at your option) any later version.
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 *
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 * This library is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Library General Public License for more details.
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 *
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 * You should have received a copy of the GNU Library General Public
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 * License along with this library; if not, write to the Free
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 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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 *
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 */
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/*
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 * $Log: not supported by cvs2svn $
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 * Revision 1.2  2002/04/23 18:23:32  kschultz
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 * Fix up alpha buffer handling for Windows.
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 * - add two new Pixel Format Descriptors that do not have alpha bits to
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 * mirror the two that do.
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 * - add logic to wglChoosePixelFormat to match PFD's with respect to alpha.
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 * - Create/clear software alpha buffer as required.
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 * Now a wgl or GLUT program can control the creation of a software alpha
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 * buffer via the PFD or GLUT parms, respectively.
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 *
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 * Revision 1.1.1.1  1999/08/19 00:55:40  jtg
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 * Imported sources
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 *
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 * Revision 3.2  1999/01/03 02:54:45  brianp
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 * updated per Ted Jump
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 *
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 * Revision 3.1  1998/12/01 02:34:27  brianp
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 * applied Mark Kilgard's patches from November 30, 1998
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 *
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 * Revision 3.0  1998/02/20 05:06:59  brianp
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 * initial rev
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 *
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 */
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/*
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 * Windows driver by: Mark E. Peterson (markp@ic.mankato.mn.us)
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 * Updated by Li Wei (liwei@aiar.xjtu.edu.cn)
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 *
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 *
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 ***************************************************************
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 *                     WMesa                                   *
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 *                     version 2.3                             *       
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 *                                                             *
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 *                        By                                   *
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 *                      Li Wei                                 *
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 *       Institute of Artificial Intelligence & Robotics       *
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 *       Xi'an Jiaotong University                             *
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 *       Email: liwei@aiar.xjtu.edu.cn                         *
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 *       Web page: http://sun.aiar.xjtu.edu.cn                 *
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 *                                                             *
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 *             July 7th, 1997                                  *
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 ***************************************************************
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 */
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#ifndef WMESA_H
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#define WMESA_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "gl\gl.h"
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#pragma warning (disable:4273)
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#pragma warning( disable : 4244 ) /* '=' : conversion from 'const double ' to 'float ', possible loss of data */
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#pragma warning( disable : 4018 ) /* '<' : signed/unsigned mismatch */
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#pragma warning( disable : 4305 ) /* '=' : truncation from 'const double ' to 'float ' */
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#pragma warning( disable : 4013 ) /* 'function' undefined; assuming extern returning int */
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#pragma warning( disable : 4761 ) /* integral size mismatch in argument; conversion supplied */
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#pragma warning( disable : 4273 ) /* 'identifier' : inconsistent DLL linkage. dllexport assumed */
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#if (MESA_WARNQUIET>1)
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#       pragma warning( disable : 4146 ) /* unary minus operator applied to unsigned type, result still unsigned */
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#endif
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/*
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 * This is the WMesa context 'handle':
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 */
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typedef struct wmesa_context *WMesaContext;
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/*
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 * Create a new WMesaContext for rendering into a window.  You must
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 * have already created the window of correct visual type and with an
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 * appropriate colormap.
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 *
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 * Input:
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 *         hWnd - Window handle
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 *         Pal  - Palette to use
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 *         rgb_flag - GL_TRUE = RGB mode,
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 *                    GL_FALSE = color index mode
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 *         db_flag - GL_TRUE = double-buffered,
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 *                   GL_FALSE = single buffered
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 *         alpha_flag - GL_TRUE = create software alpha buffer,
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 *                      GL_FALSE = no software alpha buffer
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 *
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 * Note: Indexed mode requires double buffering under Windows.
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 *
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 * Return:  a WMesa_context or NULL if error.
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 */
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extern WMesaContext WMesaCreateContext(HWND hWnd,HPALETTE* pPal,
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                                       GLboolean rgb_flag,
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                                       GLboolean db_flag,
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                                       GLboolean alpha_flag);
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/*
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 * Destroy a rendering context as returned by WMesaCreateContext()
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 */
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/*extern void WMesaDestroyContext( WMesaContext ctx );*/
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extern void WMesaDestroyContext( void );
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/*
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 * Make the specified context the current one.
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 */
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extern void WMesaMakeCurrent( WMesaContext ctx );
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/*
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 * Return a handle to the current context.
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 */
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extern WMesaContext WMesaGetCurrentContext( void );
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/*
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 * Swap the front and back buffers for the current context.  No action
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 * taken if the context is not double buffered.
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 */
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extern void WMesaSwapBuffers(void);
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/*
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 * In indexed color mode we need to know when the palette changes.
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 */
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extern void WMesaPaletteChange(HPALETTE Pal);
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extern void WMesaMove(void);
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#ifdef __cplusplus
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}
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#endif
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#endif
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