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/* GGI-Driver for MESA
*
* Copyright (C) 1997 Uwe Maurer
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
* ---------------------------------------------------------------------
* This code was derived from the following source of information:
*
* svgamesa.c and ddsample.c by Brian Paul
*
*/
#ifndef _GGIMESA_H
#define _GGIMESA_H
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include "config.h"
#include "context.h"
#include "drawpix.h"
#include "mem.h"
#include "matrix.h"
#include "state.h"
#include "mtypes.h"
#include "macros.h"
#include "depth.h"
#undef ASSERT /* ASSERT is redefined */
#include <ggi/internal/internal.h>
#include <ggi/ggi_ext.h>
#include <ggi/ggi.h>
#include "GL/ggimesa.h"
/*
* GGIMesa visual configuration.
*
* This structure "derives" from Mesa's GLvisual and extends it by
* GGI's visual. Combination of these two structures is enough to fully
* describe the mode the application is currently running in. GGI
* visual provides information about color configuration and buffering
* method, GLvisual fills the rest.
*/
struct ggi_mesa_visual {
GLvisual gl_visual;
ggi_visual_t ggi_visual;
};
/*
* GGIMesa context.
*
* GGIMesa context expands the Mesa's context (it doesn't actualy derive
* from it, but this ability isn't needed, and it is best if GL context
* creation is left up to Mesa). It also contains a reference to the GGI
* visual it is attached to, which is very useful for all Mesa callbacks.
*/
struct ggi_mesa_context
{
GLcontext *gl_ctx;
ggi_visual_t ggi_visual;
ggi_pixel color; /* Current color or index*/
ggi_pixel clearcolor;
void *private;
};
#define SHIFT (GGI_COLOR_PRECISION - 8)
#endif
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