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-rw-r--r--src/gallium/auxiliary/vl/vl_winsys_dri.c20
1 files changed, 19 insertions, 1 deletions
diff --git a/src/gallium/auxiliary/vl/vl_winsys_dri.c b/src/gallium/auxiliary/vl/vl_winsys_dri.c
index 88e17fefb8a..7aec3fee685 100644
--- a/src/gallium/auxiliary/vl/vl_winsys_dri.c
+++ b/src/gallium/auxiliary/vl/vl_winsys_dri.c
@@ -32,8 +32,10 @@
#include <fcntl.h>
#include <X11/Xlib-xcb.h>
+#include <X11/extensions/dri2tokens.h>
#include <xcb/dri2.h>
#include <xf86drm.h>
+#include <errno.h>
#include "pipe/p_screen.h"
#include "pipe/p_context.h"
@@ -305,6 +307,7 @@ vl_screen_create(Display *display, int screen)
xcb_generic_error_t *error = NULL;
char *device_name;
int fd, device_name_length;
+ unsigned int driverType;
drm_magic_t magic;
@@ -332,7 +335,22 @@ vl_screen_create(Display *display, int screen)
s = xcb_setup_roots_iterator(xcb_get_setup(scrn->conn));
while (screen--)
xcb_screen_next(&s);
- connect_cookie = xcb_dri2_connect_unchecked(scrn->conn, s.data->root, XCB_DRI2_DRIVER_TYPE_DRI);
+ driverType = XCB_DRI2_DRIVER_TYPE_DRI;
+#ifdef DRI2DriverPrimeShift
+ {
+ char *prime = getenv("DRI_PRIME");
+ if (prime) {
+ unsigned int primeid;
+ errno = 0;
+ primeid = strtoul(prime, NULL, 0);
+ if (errno == 0)
+ driverType |=
+ ((primeid & DRI2DriverPrimeMask) << DRI2DriverPrimeShift);
+ }
+ }
+#endif
+
+ connect_cookie = xcb_dri2_connect_unchecked(scrn->conn, s.data->root, driverType);
connect = xcb_dri2_connect_reply(scrn->conn, connect_cookie, NULL);
if (connect == NULL || connect->driver_name_length + connect->device_name_length == 0)
goto free_screen;