1/*
2Copyright (C) The Weather Channel, Inc.  2002.  All Rights Reserved.
3
4The Weather Channel (TM) funded Tungsten Graphics to develop the
5initial release of the Radeon 8500 driver under the XFree86 license.
6This notice must be preserved.
7
8Permission is hereby granted, free of charge, to any person obtaining
9a copy of this software and associated documentation files (the
10"Software"), to deal in the Software without restriction, including
11without limitation the rights to use, copy, modify, merge, publish,
12distribute, sublicense, and/or sell copies of the Software, and to
13permit persons to whom the Software is furnished to do so, subject to
14the following conditions:
15
16The above copyright notice and this permission notice (including the
17next paragraph) shall be included in all copies or substantial
18portions of the Software.
19
20THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
23IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
24LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
25OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
26WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27
28**************************************************************************/
29
30/*
31 * Authors:
32 *   Keith Whitwell <keith@tungstengraphics.com>
33 */
34
35#include <sched.h>
36#include <errno.h>
37
38#include "main/glheader.h"
39#include "main/imports.h"
40#include "main/macros.h"
41#include "main/context.h"
42#include "swrast/swrast.h"
43
44
45
46#include "radeon_common.h"
47#include "r200_context.h"
48#include "r200_ioctl.h"
49#include "radeon_reg.h"
50
51#define R200_TIMEOUT             512
52#define R200_IDLE_RETRY           16
53
54/* ================================================================
55 * Buffer clear
56 */
57static void r200Clear( struct gl_context *ctx, GLbitfield mask )
58{
59   r200ContextPtr rmesa = R200_CONTEXT(ctx);
60   GLuint hwmask, swmask;
61   GLuint hwbits = BUFFER_BIT_FRONT_LEFT | BUFFER_BIT_BACK_LEFT |
62                   BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL |
63                   BUFFER_BIT_COLOR0;
64
65   if ( R200_DEBUG & RADEON_IOCTL ) {
66	   if (rmesa->radeon.sarea)
67	       fprintf( stderr, "r200Clear %x %d\n", mask, rmesa->radeon.sarea->pfCurrentPage);
68	   else
69	       fprintf( stderr, "r200Clear %x radeon->sarea is NULL\n", mask);
70   }
71
72   radeonFlush( ctx );
73
74   hwmask = mask & hwbits;
75   swmask = mask & ~hwbits;
76
77   if ( swmask ) {
78      if (R200_DEBUG & RADEON_FALLBACKS)
79	 fprintf(stderr, "%s: swrast clear, mask: %x\n", __FUNCTION__, swmask);
80      _swrast_Clear( ctx, swmask );
81   }
82
83   if ( !hwmask )
84      return;
85
86   radeonUserClear(ctx, hwmask);
87}
88
89
90void r200InitIoctlFuncs( struct dd_function_table *functions )
91{
92    functions->Clear = r200Clear;
93    functions->Finish = radeonFinish;
94    functions->Flush = radeonFlush;
95}
96
97