1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/ati/atiaccel.c,v 1.5 2001/04/16 15:47:56 tsi Exp $ */
/*
* Copyright 2001 by Marc Aurele La France (TSI @ UQV), tsi@xfree86.org
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of Marc Aurele La France not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. Marc Aurele La France makes no representations
* about the suitability of this software for any purpose. It is provided
* "as-is" without express or implied warranty.
*
* MARC AURELE LA FRANCE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO
* EVENT SHALL MARC AURELE LA FRANCE BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
#include "atiaccel.h"
#include "atiadapter.h"
#include "atimach64.h"
#include "atistruct.h"
/*
* ATIInitializeAcceleration --
*
* This function is called to initialise XAA on a screen.
*/
Bool
ATIInitializeAcceleration
(
ScrnInfoPtr pScreenInfo,
ScreenPtr pScreen,
ATIPtr pATI
)
{
BoxRec ScreenArea;
unsigned int nScanlines, maxScanlines;
if (!pATI->OptionAccel)
return TRUE;
if (!(pATI->pXAAInfo = XAACreateInfoRec()))
return FALSE;
switch (pATI->Adapter)
{
case ATI_ADAPTER_MACH64:
maxScanlines = ATIMach64AccelInit(pATI, pATI->pXAAInfo);
break;
default:
maxScanlines = 0;
}
if (maxScanlines > 0)
{
ScreenArea.x1 = ScreenArea.y1 = 0;
ScreenArea.x2 = pATI->displayWidth;
nScanlines = pScreenInfo->videoRam * 1024 * 8 / pATI->displayWidth /
pATI->bitsPerPixel;
if (nScanlines > maxScanlines)
nScanlines = maxScanlines;
ScreenArea.y2 = (short int)nScanlines;
xf86InitFBManager(pScreen, &ScreenArea);
if (XAAInit(pScreen, pATI->pXAAInfo))
return TRUE;
}
XAADestroyInfoRec(pATI->pXAAInfo);
pATI->pXAAInfo = NULL;
return FALSE;
}
|
