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