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Workaround an xcb-dri2 bug.

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xcb_dri2_connect_device_name generated by xcb-proto 1.6 is broken.  It
only works when the length of the driver name is a multiple of 4.
This commit is contained in:
Chia-I Wu 2010-10-29 15:20:18 +08:00 • committed by Kristian Høgsberg
parent 4d8ba216c5
commit 1b6c0ed95a
2 changed files with 22 additions and 0 deletions
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17
compositor/compositor-x11.c
View file

@ -16,6 +16,10 @@
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
@ -152,9 +156,22 @@ dri2_connect(struct x11_compositor *c)
return -1;
}
#ifdef XCB_DRI2_CONNECT_DEVICE_NAME_BROKEN
{
char *driver_name, *device_name;
driver_name = xcb_dri2_connect_driver_name (connect);
device_name = driver_name +
((connect->driver_name_length + 3) & ~3);
snprintf(path, sizeof path, "%.*s",
xcb_dri2_connect_device_name_length (connect),
device_name);
}
#else
snprintf(path, sizeof path, "%.*s",
xcb_dri2_connect_device_name_length (connect),
xcb_dri2_connect_device_name (connect));
#endif
free(connect);
fd = open(path, O_RDWR);