xenocara/xserver/dri3/dri3_screen.c
matthieu 4f58590a42 Update to xserver 1.16.1.
Tested by naddy@, jsg@ & kettenis@
2014-09-27 17:52:59 +00:00

99 lines
3.1 KiB
C

/*
* Copyright © 2013 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 the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS 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.
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include "dri3_priv.h"
#include <syncsdk.h>
#include <misync.h>
#include <misyncshm.h>
#include <randrstr.h>
static inline Bool has_open(dri3_screen_info_ptr info) {
if (info == NULL)
return FALSE;
return info->open != NULL ||
(info->version >= 1 && info->open_client != NULL);
}
int
dri3_open(ClientPtr client, ScreenPtr screen, RRProviderPtr provider, int *fd)
{
dri3_screen_priv_ptr ds = dri3_screen_priv(screen);
dri3_screen_info_ptr info = ds->info;
int rc;
if (!has_open(info))
return BadMatch;
if (info->version >= 1 && info->open_client != NULL)
rc = (*info->open_client) (client, screen, provider, fd);
else
rc = (*info->open) (screen, provider, fd);
if (rc != Success)
return rc;
return Success;
}
int
dri3_pixmap_from_fd(PixmapPtr *ppixmap, ScreenPtr screen, int fd,
CARD16 width, CARD16 height, CARD16 stride, CARD8 depth, CARD8 bpp)
{
dri3_screen_priv_ptr ds = dri3_screen_priv(screen);
dri3_screen_info_ptr info = ds->info;
PixmapPtr pixmap;
if (!info || !info->pixmap_from_fd)
return BadImplementation;
pixmap = (*info->pixmap_from_fd) (screen, fd, width, height, stride, depth, bpp);
if (!pixmap)
return BadAlloc;
*ppixmap = pixmap;
return Success;
}
int
dri3_fd_from_pixmap(int *pfd, PixmapPtr pixmap, CARD16 *stride, CARD32 *size)
{
ScreenPtr screen = pixmap->drawable.pScreen;
dri3_screen_priv_ptr ds = dri3_screen_priv(screen);
dri3_screen_info_ptr info = ds->info;
int fd;
if (!info || !info->fd_from_pixmap)
return BadImplementation;
fd = (*info->fd_from_pixmap)(screen, pixmap, stride, size);
if (fd < 0)
return BadAlloc;
*pfd = fd;
return Success;
}