56 lines
1.9 KiB
C
56 lines
1.9 KiB
C
/*
|
|
* $XFree86$
|
|
*
|
|
* Copyright © 1999 Keith Packard
|
|
*
|
|
* 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 Keith Packard not be used in
|
|
* advertising or publicity pertaining to distribution of the software without
|
|
* specific, written prior permission. Keith Packard makes no
|
|
* representations about the suitability of this software for any purpose. It
|
|
* is provided "as is" without express or implied warranty.
|
|
*
|
|
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
|
|
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
|
|
* EVENT SHALL KEITH PACKARD 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 "kdrive.h"
|
|
|
|
Bool
|
|
KdShadowScreenInit (KdScreenInfo *screen)
|
|
{
|
|
void *buf;
|
|
|
|
buf = shadowAlloc (screen->width, screen->height, screen->fb[0].bitsPerPixel);
|
|
if (!buf)
|
|
return FALSE;
|
|
screen->fb[0].frameBuffer = buf;
|
|
screen->fb[0].byteStride = BitmapBytePad (screen->width * screen->fb[0].bitsPerPixel);
|
|
screen->fb[0].pixelStride = screen->fb[0].byteStride * 8 / screen->fb[0].bitsPerPixel;
|
|
screen->dumb = TRUE;
|
|
return TRUE;
|
|
}
|
|
|
|
Bool
|
|
KdShadowInitScreen (ScreenPtr pScreen, ShadowUpdateProc update, ShadowWindowProc window)
|
|
{
|
|
KdScreenPriv(pScreen);
|
|
|
|
return shadowInit (pScreen, update, window);
|
|
}
|
|
|
|
void
|
|
KdShadowScreenFini (KdScreenInfo *screen)
|
|
{
|
|
if (screen->fb[0].frameBuffer)
|
|
xfree (screen->fb[0].frameBuffer);
|
|
}
|