diff options
| author | Kristian Høgsberg <krh@redhat.com> | 2009-09-11 13:27:35 -0400 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2009-10-29 17:14:09 -0700 |
| commit | b0b96636dbf93445dd532b09b21fa4fc5ce6bdc7 (patch) | |
| tree | 651a1d6ea2aff02f9fe43c696401eca1d82fe434 /libdrm/xf86drm.h | |
| parent | 0d7ad7e43ca212b1e9f16cd18f36493cab455e61 (diff) | |
Add support for vblank events
The kernel will now write data to the DRM fd for various event types if
requested. Currently, the only supported event is a vblank event: it contains
the vblank count for the event as well as a timestamp from when the event
ocurred. Since the DRM fd is now pollable, it's easy to integrate into
existing event loops.
Diffstat (limited to 'libdrm/xf86drm.h')
| -rw-r--r-- | libdrm/xf86drm.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/libdrm/xf86drm.h b/libdrm/xf86drm.h index c1d173c4..2cb9c9e9 100644 --- a/libdrm/xf86drm.h +++ b/libdrm/xf86drm.h @@ -271,6 +271,7 @@ typedef struct _drmTextureRegion { typedef enum { DRM_VBLANK_ABSOLUTE = 0x0, /**< Wait for specific vblank sequence number */ DRM_VBLANK_RELATIVE = 0x1, /**< Wait for given number of vblanks */ + DRM_VBLANK_EVENT = 0x4000000, /**< Send event instead of blocking */ DRM_VBLANK_FLIP = 0x8000000, /**< Scheduled buffer swap should flip */ DRM_VBLANK_NEXTONMISS = 0x10000000, /**< If missed, wait for next vblank */ DRM_VBLANK_SECONDARY = 0x20000000, /**< Secondary display controller */ @@ -667,4 +668,22 @@ extern void drmMsg(const char *format, ...); extern int drmSetMaster(int fd); extern int drmDropMaster(int fd); +#define DRM_EVENT_CONTEXT_VERSION 1 + +typedef struct _drmEventContext { + + /* This struct is versioned so we can add more pointers if we + * add more events. */ + int version; + + void (*vblank_handler)(int fd, + unsigned int sequence, + unsigned int tv_sec, + unsigned int tv_usec, + void *user_data); + +} drmEventContext, *drmEventContextPtr; + +extern int drmHandleEvent(int fd, drmEventContextPtr evctx); + #endif |