src/mesa/drivers/dri/mga/mgadd.c

   1 /*
   2  * Copyright 2000-2001 VA Linux Systems, Inc.
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * on the rights to use, copy, modify, merge, publish, distribute, sub
   9  * license, and/or sell copies of the Software, and to permit persons to whom
  10  * the Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
  19  * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  22  * OTHER DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors:
  25  *    Keith Whitwell <keith@tungstengraphics.com>
  26  */
  27 /* $XFree86: xc/lib/GL/mesa/src/drv/mga/mgadd.c,v 1.14 2002/10/30 12:51:35 alanh Exp $ */
  28
  29
  30 #include "mtypes.h"
  31
  32 #include "mm.h"
  33 #include "mgacontext.h"
  34 #include "mgadd.h"
  35 #include "mgastate.h"
  36 #include "mgaspan.h"
  37 #include "mgatex.h"
  38 #include "mgatris.h"
  39 #include "mgavb.h"
  40 #include "mga_xmesa.h"
  41 #include "utils.h"
  42
  43 #define DRIVER_DATE     "20030328"
  44
  45
  46 /***************************************
  47  * Mesa's Driver Functions
  48  ***************************************/
  49
  50
  51 static const GLubyte *mgaDDGetString( GLcontext *ctx, GLenum name )
  52 {
  53    mgaContextPtr mmesa = MGA_CONTEXT( ctx );
  54    static char buffer[128];
  55    unsigned   offset;
  56
  57    switch ( name ) {
  58    case GL_VENDOR:
  59       return (GLubyte *) "VA Linux Systems Inc.";
  60
  61    case GL_RENDERER:
  62       offset = driGetRendererString( buffer,
  63                                      MGA_IS_G400(mmesa) ? "G400" :
  64                                      MGA_IS_G200(mmesa) ? "G200" : "MGA",
  65                                      DRIVER_DATE,
  66                                      mmesa->mgaScreen->agpMode );
  67
  68       return (GLubyte *)buffer;
  69
  70    default:
  71       return NULL;
  72    }
  73 }
  74
  75
  76
  77 static void mgaBufferSize(GLframebuffer *buffer, GLuint *width, GLuint *height)
  78 {
  79    GET_CURRENT_CONTEXT(ctx);
  80    mgaContextPtr mmesa = MGA_CONTEXT(ctx);
  81
  82    /* Need to lock to make sure the driDrawable is uptodate.  This
  83     * information is used to resize Mesa's software buffers, so it has
  84     * to be correct.
  85     */
  86    LOCK_HARDWARE( mmesa );
  87    *width = mmesa->driDrawable->w;
  88    *height = mmesa->driDrawable->h;
  89    UNLOCK_HARDWARE( mmesa );
  90 }
  91
  92 void mgaDDInitDriverFuncs( GLcontext *ctx )
  93 {
  94    ctx->Driver.GetBufferSize = mgaBufferSize;
  95    ctx->Driver.ResizeBuffers = _swrast_alloc_buffers;
  96    ctx->Driver.GetString = mgaDDGetString;
  97 }