/usr/include/compiz/opengl/xtoglsync.h is in compiz-dev 1:0.9.13.1+18.04.20180302-0ubuntu1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 | /*
* Copyright © 2011 NVIDIA Corporation
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without
* fee, provided that the above copyright notice appear in all copies
* and that both that copyright notice and this permission notice
* appear in supporting documentation, and that the name of
* NVIDIA Corporation not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior permission.
* NVIDIA Corporation makes no representations about the suitability of this
* software for any purpose. It is provided "as is" without express or
* implied warranty.
*
* NVIDIA CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
* NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Authors: James Jones <jajones@nvidia.com>
*/
#ifndef _GLXTOGLSYNC_H
#define _GLXTOGLSYNC_H
#include <composite/composite.h>
#include <opengl/opengl.h>
#include <X11/extensions/sync.h>
#include "opengl/opengl.h"
/**
* Class that manages an XFenceSync wrapped in a GLsync object.
*
* Can be used to synchronize operations in the GL command stream
* with operations in the X command stream.
*/
class XToGLSync {
public:
XToGLSync ();
~XToGLSync ();
XSyncAlarm alarm (void) const { return a; }
bool isReady (void) const { return state == XTOGLS_READY; }
/**
* Sends the trigger request to the server. The fence will be signaled
* after all rendering has completed.
*/
void trigger (void);
/**
* Calls glWaitSync. Any OpenGL commands after this will wait for the
* fence to be signaled.
*/
void insertWait (void);
/**
* Blocks until the fence is signaled, or until a timeout expires.
*
* \param The maximum time to wait, in nanoseconds.
* \return One of \c GL_ALREADY_SIGNALED, \c GL_CONDITION_SATISFIED,
* \c GL_TIMEOUT_EXPIRED, or \c GL_WAIT_FAILED.
*/
GLenum checkUpdateFinished (GLuint64 timeout);
/**
* Resets the fence.
*/
void reset (void);
void handleEvent (XSyncAlarmNotifyEvent *ev);
private:
XSyncFence f;
GLsync fGL;
XSyncCounter c;
XSyncAlarm a;
XSyncValue nextCounterValue;
enum {
XTOGLS_READY,
XTOGLS_TRIGGER_SENT,
XTOGLS_WAITING,
XTOGLS_DONE,
XTOGLS_RESET_PENDING,
} state;
static bool syncValuesInitialized;
static XSyncValue zero;
static XSyncValue one;
static Bool alarmEventPredicate (Display *dpy, XEvent *ev, XPointer arg);
};
#endif
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