src/mesa/drivers/svga/svgapix.h

   1 /* $Id: svgapix.h,v 1.5 2002/11/11 18:42:44 brianp Exp $ */
   2
   3 /*
   4  * Mesa 3-D graphics library
   5  * Version:  5.0
   6  * Copyright (C) 1995-2002  Brian Paul
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Library General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Library General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Library General Public
  19  * License along with this library; if not, write to the Free
  20  * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  */
  22
  23
  24 /*
  25  * SVGA driver for Mesa.
  26  * Original author:  Brian Paul
  27  * Additional authors:  Slawomir Szczyrba <steev@hot.pl>  (Mesa 3.2)
  28  */
  29
  30
  31 #ifndef SVGAPIX_H
  32 #define SVGAPIX_H
  33
  34 #include "GL/gl.h"
  35 #include "GL/svgamesa.h"
  36 #include "context.h"
  37 #include "colormac.h"
  38 #include "vga.h"
  39
  40 struct svgamesa_context {
  41    GLcontext *gl_ctx;           /* the core Mesa context */
  42    GLvisual *gl_vis;            /* describes the color buffer */
  43    GLframebuffer *gl_buffer;    /* the ancillary buffers */
  44    GLuint clear_index;          /* current clear index */
  45    GLint clear_red,
  46          clear_green,
  47          clear_blue;            /* current clear rgb color */
  48    GLuint clear_truecolor;      /* current clear rgb color */
  49    GLushort hicolor;            /* current hicolor */
  50    GLushort clear_hicolor;      /* current clear hicolor */
  51    GLint width, height;         /* size of color buffer */
  52    GLint depth;                 /* bits per pixel (8,16,24 or 32) */
  53 };
  54
  55 typedef struct { GLubyte b,g,r; } _RGB;
  56
  57 struct svga_buffer {
  58    GLint     Depth;
  59    GLint     BufferSize;
  60    GLubyte   * FrontBuffer;
  61    GLubyte   * BackBuffer;
  62    GLubyte   * VideoRam;
  63    GLubyte   * DrawBuffer;  /* == FrontBuffer or BackBuffer */
  64    GLubyte   * ReadBuffer;  /* == FrontBuffer or BackBuffer */
  65 };
  66
  67 extern struct svga_buffer SVGABuffer;
  68 extern vga_modeinfo * SVGAInfo;
  69 extern SVGAMesaContext SVGAMesa;    /* the current context */
  70
  71 #endif /* SVGAPIX_H */