6ec04a75de
Xwayland will eventually need the current client in dri3_open. Simply changing that API is not an option though as other drivers that implement DRI3 will not have a matching function signature and will crash when called. Add a new dri3_open_client function pointer and bump DRI3_SCREEN_INFO_VERSION so that drivers can be aware of the new function which will be used in preference to the old function when available. Signed-off-by: Keith Packard <keithp@keithp.com> Reviewed-by: Eric Anhole <eric@anholt.net>
99 lines
3.1 KiB
C
99 lines
3.1 KiB
C
/*
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* Copyright © 2013 Keith Packard
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that copyright
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* notice and this permission notice appear in supporting documentation, and
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* that the name of the copyright holders not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. The copyright holders make no representations
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* about the suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*/
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#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#endif
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#include "dri3_priv.h"
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#include <syncsdk.h>
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#include <misync.h>
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#include <misyncshm.h>
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#include <randrstr.h>
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static inline Bool has_open(dri3_screen_info_ptr info) {
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if (info == NULL)
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return FALSE;
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return info->open != NULL ||
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(info->version >= 1 && info->open_client != NULL);
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}
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int
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dri3_open(ClientPtr client, ScreenPtr screen, RRProviderPtr provider, int *fd)
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{
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dri3_screen_priv_ptr ds = dri3_screen_priv(screen);
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dri3_screen_info_ptr info = ds->info;
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int rc;
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if (!has_open(info))
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return BadMatch;
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if (info->version >= 1 && info->open_client != NULL)
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rc = (*info->open_client) (client, screen, provider, fd);
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else
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rc = (*info->open) (screen, provider, fd);
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if (rc != Success)
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return rc;
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return Success;
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}
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int
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dri3_pixmap_from_fd(PixmapPtr *ppixmap, ScreenPtr screen, int fd,
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CARD16 width, CARD16 height, CARD16 stride, CARD8 depth, CARD8 bpp)
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{
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dri3_screen_priv_ptr ds = dri3_screen_priv(screen);
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dri3_screen_info_ptr info = ds->info;
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PixmapPtr pixmap;
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if (!info || !info->pixmap_from_fd)
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return BadImplementation;
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pixmap = (*info->pixmap_from_fd) (screen, fd, width, height, stride, depth, bpp);
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if (!pixmap)
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return BadAlloc;
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*ppixmap = pixmap;
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return Success;
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}
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int
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dri3_fd_from_pixmap(int *pfd, PixmapPtr pixmap, CARD16 *stride, CARD32 *size)
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{
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ScreenPtr screen = pixmap->drawable.pScreen;
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dri3_screen_priv_ptr ds = dri3_screen_priv(screen);
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dri3_screen_info_ptr info = ds->info;
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int fd;
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if (!info || !info->fd_from_pixmap)
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return BadImplementation;
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fd = (*info->fd_from_pixmap)(screen, pixmap, stride, size);
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if (fd < 0)
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return BadAlloc;
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*pfd = fd;
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return Success;
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}
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