1 /*
2 Copyright (C) The Weather Channel, Inc. 2002. All Rights Reserved.
3
4 The Weather Channel (TM) funded Tungsten Graphics to develop the
5 initial release of the Radeon 8500 driver under the XFree86 license.
6 This notice must be preserved.
7
8 Permission is hereby granted, free of charge, to any person obtaining
9 a copy of this software and associated documentation files (the
10 "Software"), to deal in the Software without restriction, including
11 without limitation the rights to use, copy, modify, merge, publish,
12 distribute, sublicense, and/or sell copies of the Software, and to
13 permit persons to whom the Software is furnished to do so, subject to
14 the following conditions:
15
16 The above copyright notice and this permission notice (including the
17 next paragraph) shall be included in all copies or substantial
18 portions of the Software.
19
20 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
23 IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
24 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
25 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
26 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27
28 **************************************************************************/
29
30 /*
31 * Authors:
32 * Keith Whitwell <keithw@vmware.com>
33 */
34
35 #include <sched.h>
36 #include <errno.h>
37
38 #include "main/glheader.h"
39
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 */
r200Clear(struct gl_context * ctx,GLbitfield mask)57 static void r200Clear( struct gl_context *ctx, GLbitfield mask )
58 {
59 GLuint hwmask, swmask;
60 GLuint hwbits = BUFFER_BIT_FRONT_LEFT | BUFFER_BIT_BACK_LEFT |
61 BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL |
62 BUFFER_BIT_COLOR0;
63
64 radeonFlush( ctx, 0 );
65
66 hwmask = mask & hwbits;
67 swmask = mask & ~hwbits;
68
69 if ( swmask ) {
70 if (R200_DEBUG & RADEON_FALLBACKS)
71 fprintf(stderr, "%s: swrast clear, mask: %x\n", __func__, swmask);
72 _swrast_Clear( ctx, swmask );
73 }
74
75 if ( !hwmask )
76 return;
77
78 radeonUserClear(ctx, hwmask);
79 }
80
81
r200InitIoctlFuncs(struct dd_function_table * functions)82 void r200InitIoctlFuncs( struct dd_function_table *functions )
83 {
84 functions->Clear = r200Clear;
85 functions->Finish = radeonFinish;
86 functions->Flush = radeonFlush;
87 }
88
89