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authorMichel Dänzer <michel@tungstengraphics.com>2006-09-01 11:27:14 +0200
committerMichel Dänzer <michel@tungstengraphics.com>2006-09-29 12:55:08 +0200
commited82172378666d35ca60e6094fdecb59511a135f (patch)
tree9d192ab9c51c8a0447e3dbf0d1055ddae7b054ea /shared-core
parentc4c47a7eacf8e8cb96b2fb63164e28f0db7353ad (diff)
Core vsync: Add flag DRM_VBLANK_NEXTONMISS.
When this flag is set and the target sequence is missed, wait for the next vertical blank instead of returning immediately. (cherry picked from 89e323e4900af84cc33219ad24eb0b435a039d23 commit)
Diffstat (limited to 'shared-core')
-rw-r--r--shared-core/drm.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/shared-core/drm.h b/shared-core/drm.h
index 0b241117..17bf993b 100644
--- a/shared-core/drm.h
+++ b/shared-core/drm.h
@@ -558,12 +558,14 @@ typedef struct drm_irq_busid {
typedef enum {
_DRM_VBLANK_ABSOLUTE = 0x0, /**< Wait for specific vblank sequence number */
_DRM_VBLANK_RELATIVE = 0x1, /**< Wait for given number of vblanks */
+ _DRM_VBLANK_NEXTONMISS = 0x10000000, /**< If missed, wait for next vblank */
_DRM_VBLANK_SECONDARY = 0x20000000, /**< Secondary display controller */
_DRM_VBLANK_SIGNAL = 0x40000000 /**< Send signal instead of blocking */
} drm_vblank_seq_type_t;
#define _DRM_VBLANK_TYPES_MASK (_DRM_VBLANK_ABSOLUTE | _DRM_VBLANK_RELATIVE)
-#define _DRM_VBLANK_FLAGS_MASK (_DRM_VBLANK_SIGNAL | _DRM_VBLANK_SECONDARY)
+#define _DRM_VBLANK_FLAGS_MASK (_DRM_VBLANK_SIGNAL | _DRM_VBLANK_SECONDARY | \
+ _DRM_VBLANK_NEXTONMISS)
struct drm_wait_vblank_request {
drm_vblank_seq_type_t type;