2 * Copyright 1998 by Alan Hourihane, Wigan, England.
4 * Permission to use, copy, modify, distribute, and sell this software and its
5 * documentation for any purpose is hereby granted without fee, provided that
6 * the above copyright notice appear in all copies and that both that
7 * copyright notice and this permission notice appear in supporting
8 * documentation, and that the name of Alan Hourihane not be used in
9 * advertising or publicity pertaining to distribution of the software without
10 * specific, written prior permission. Alan Hourihane makes no representations
11 * about the suitability of this software for any purpose. It is provided
12 * "as is" without express or implied warranty.
14 * ALAN HOURIHANE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
15 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
16 * EVENT SHALL ALAN HOURIHANE BE LIABLE FOR ANY SPECIAL, INDIRECT OR
17 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
18 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
19 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
20 * PERFORMANCE OF THIS SOFTWARE.
22 * Authors: Alan Hourihane, <alanh@fairlite.demon.co.uk>
24 * Generic RAMDAC access to colormaps.
27 #ifdef HAVE_XORG_CONFIG_H
28 #include <xorg-config.h>
32 #include <X11/Xproto.h>
33 #include "windowstr.h"
34 #include "mipointer.h"
39 #include "colormapst.h"
40 #include "xf86RamDacPriv.h"
43 RamDacLoadPalette(ScrnInfoPtr pScrn
, int numColors
, int *indices
, LOCO
* colors
,
46 RamDacRecPtr hwp
= RAMDACSCRPTR(pScrn
);
49 for (i
= 0; i
< numColors
; i
++) {
51 (*hwp
->WriteAddress
) (pScrn
, index
);
52 (*hwp
->WriteData
) (pScrn
, colors
[index
].red
);
53 (*hwp
->WriteData
) (pScrn
, colors
[index
].green
);
54 (*hwp
->WriteData
) (pScrn
, colors
[index
].blue
);
59 RamDacHandleColormaps(ScreenPtr pScreen
, int maxColors
, int sigRGBbits
,
62 ScrnInfoPtr pScrn
= xf86ScreenToScrn(pScreen
);
63 RamDacRecPtr hwp
= RAMDACSCRPTR(pScrn
);
65 if (hwp
->LoadPalette
== NULL
)
66 return xf86HandleColormaps(pScreen
, maxColors
, sigRGBbits
,
67 RamDacLoadPalette
, NULL
, flags
);
69 return xf86HandleColormaps(pScreen
, maxColors
, sigRGBbits
,
70 hwp
->LoadPalette
, NULL
, flags
);