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/**************************************************************************
*
* Copyright 2010 LunarG, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#ifndef EGLSYNC_INCLUDED
#define EGLSYNC_INCLUDED
#include "c99_compat.h"
#include "egltypedefs.h"
#include "egldisplay.h"
/**
* "Base" class for device driver syncs.
*/
struct _egl_sync
{
/* A sync is a display resource */
_EGLResource Resource;
EGLenum Type;
EGLenum SyncStatus;
EGLenum SyncCondition;
EGLAttrib CLEvent;
EGLint SyncFd;
};
extern EGLBoolean
_eglInitSync(_EGLSync *sync, _EGLDisplay *disp, EGLenum type,
const EGLAttrib *attrib_list);
extern EGLBoolean
_eglGetSyncAttrib(_EGLDriver *drv, _EGLDisplay *disp, _EGLSync *sync,
EGLint attribute, EGLAttrib *value);
/**
* Increment reference count for the sync.
*/
static inline _EGLSync *
_eglGetSync(_EGLSync *sync)
{
if (sync)
_eglGetResource(&sync->Resource);
return sync;
}
/**
* Decrement reference count for the sync.
*/
static inline EGLBoolean
_eglPutSync(_EGLSync *sync)
{
return (sync) ? _eglPutResource(&sync->Resource) : EGL_FALSE;
}
/**
* Link a sync to its display and return the handle of the link.
* The handle can be passed to client directly.
*/
static inline EGLSync
_eglLinkSync(_EGLSync *sync)
{
_eglLinkResource(&sync->Resource, _EGL_RESOURCE_SYNC);
return (EGLSync) 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(EGLSync handle, _EGLDisplay *disp)
{
_EGLSync *sync = (_EGLSync *) handle;
if (!disp || !_eglCheckResource((void *) sync, _EGL_RESOURCE_SYNC, disp))
sync = NULL;
return sync;
}
/**
* Return the handle of a linked sync, or EGL_NO_SYNC_KHR.
*/
static inline EGLSync
_eglGetSyncHandle(_EGLSync *sync)
{
_EGLResource *res = (_EGLResource *) sync;
return (res && _eglIsResourceLinked(res)) ?
(EGLSync) sync : EGL_NO_SYNC_KHR;
}
#endif /* EGLSYNC_INCLUDED */
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