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author | Chris Wilson <chris@chris-wilson.co.uk> | 2015-04-20 14:54:50 +0100 |
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committer | Chris Wilson <chris@chris-wilson.co.uk> | 2015-04-20 15:00:47 +0100 |
commit | 75037efcd75f6baa3b48dd818b3efca42087f1b9 (patch) | |
tree | 73132ab074131937823c2df16fb2cc3f7e198979 /test/dri3.c | |
parent | 7eaf593640d4479f850227252fd793bcb55be8d3 (diff) | |
download | xorg-driver-xf86-video-intel-75037efcd75f6baa3b48dd818b3efca42087f1b9.tar.gz |
test/dri3: Add an explicit DRI3 extension check first
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'test/dri3.c')
-rw-r--r-- | test/dri3.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/test/dri3.c b/test/dri3.c index 45f3285c..e5644629 100644 --- a/test/dri3.c +++ b/test/dri3.c @@ -29,6 +29,7 @@ #include <xcb/dri3.h> #include <xcb/sync.h> #include <unistd.h> +#include <stdlib.h> #include "dri3.h" @@ -109,12 +110,45 @@ void dri3_fence_free(Display *dpy, struct dri3_fence *fence) xcb_sync_destroy_fence(c, fence->xid); } +static void dri3_query_version(xcb_connection_t *c, int *major, int *minor) +{ + xcb_dri3_query_version_reply_t *reply; + + reply = xcb_dri3_query_version_reply(c, + xcb_dri3_query_version(c, + XCB_DRI3_MAJOR_VERSION, + XCB_DRI3_MINOR_VERSION), + NULL); + if (reply != NULL) { + *major = reply->major_version; + *minor = reply->minor_version; + free(reply); + } +} + +static int dri3_exists(xcb_connection_t *c) +{ + const xcb_query_extension_reply_t *ext; + int major, minor; + + major = minor = -1; + + ext = xcb_get_extension_data(c, &xcb_dri3_id); + if (ext != NULL && ext->present) + dri3_query_version(c, &major, &minor); + + return major >= 0; +} + int dri3_open__full(Display *dpy, Window root, unsigned provider) { xcb_connection_t *c = XGetXCBConnection(dpy); xcb_dri3_open_cookie_t cookie; xcb_dri3_open_reply_t *reply; + if (!dri3_exists(c)) + return -1; + cookie = xcb_dri3_open(c, root, provider); reply = xcb_dri3_open_reply(c, cookie, NULL); |