diff options
Diffstat (limited to 'src/egl/main/eglsync.h')
-rw-r--r-- | src/egl/main/eglsync.h | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/src/egl/main/eglsync.h b/src/egl/main/eglsync.h new file mode 100644 index 0000000..a013478 --- /dev/null +++ b/src/egl/main/eglsync.h @@ -0,0 +1,119 @@ +#ifndef EGLSYNC_INCLUDED +#define EGLSYNC_INCLUDED + + +#include "egltypedefs.h" +#include "egldisplay.h" + + +#ifdef EGL_KHR_reusable_sync + + +/** + * "Base" class for device driver syncs. + */ +struct _egl_sync +{ + /* A sync is a display resource */ + _EGLResource Resource; + + EGLenum Type; + EGLenum SyncStatus; +}; + + +PUBLIC EGLBoolean +_eglInitSync(_EGLSync *sync, _EGLDisplay *dpy, EGLenum type, + const EGLint *attrib_list); + + +extern _EGLSync * +_eglCreateSyncKHR(_EGLDriver *drv, _EGLDisplay *dpy, + EGLenum type, const EGLint *attrib_list); + + +extern EGLBoolean +_eglDestroySyncKHR(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync); + + +extern EGLint +_eglClientWaitSyncKHR(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync, + EGLint flags, EGLTimeKHR timeout); + + +extern EGLBoolean +_eglSignalSyncKHR(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync, + EGLenum mode); + + +extern EGLBoolean +_eglGetSyncAttribKHR(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync, + EGLint attribute, EGLint *value); + + +/** + * Link a sync to a display and return the handle of the link. + * The handle can be passed to client directly. + */ +static INLINE EGLSyncKHR +_eglLinkSync(_EGLSync *sync, _EGLDisplay *dpy) +{ + _eglLinkResource(&sync->Resource, _EGL_RESOURCE_SYNC, dpy); + return (EGLSyncKHR) sync; +} + + +/** + * Unlink a linked sync from its display. + */ +static INLINE void +_eglUnlinkSync(_EGLSync *sync) +{ + _eglUnlinkResource(&sync->Resource, _EGL_RESOURCE_SYNC); +} + + +/** + * Lookup a handle to find the linked sync. + * Return NULL if the handle has no corresponding linked sync. + */ +static INLINE _EGLSync * +_eglLookupSync(EGLSyncKHR handle, _EGLDisplay *dpy) +{ + _EGLSync *sync = (_EGLSync *) handle; + if (!dpy || !_eglCheckResource((void *) sync, _EGL_RESOURCE_SYNC, dpy)) + sync = NULL; + return sync; +} + + +/** + * Return the handle of a linked sync, or EGL_NO_SYNC_KHR. + */ +static INLINE EGLSyncKHR +_eglGetSyncHandle(_EGLSync *sync) +{ + _EGLResource *res = (_EGLResource *) sync; + return (res && _eglIsResourceLinked(res)) ? + (EGLSyncKHR) sync : EGL_NO_SYNC_KHR; +} + + +/** + * Return true if the sync is linked to a display. + * + * The link is considered a reference to the sync (the display is owning the + * sync). Drivers should not destroy a sync when it is linked. + */ +static INLINE EGLBoolean +_eglIsSyncLinked(_EGLSync *sync) +{ + _EGLResource *res = (_EGLResource *) sync; + return (res && _eglIsResourceLinked(res)); +} + + +#endif /* EGL_KHR_reusable_sync */ + + +#endif /* EGLSYNC_INCLUDED */ |