/*
** Initialize the client side extension code.
*/
_X_HIDDEN struct glx_display *
__glXInitialize(Display * dpy)
{
struct glx_display *dpyPriv, *d;
#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
Bool glx_direct, glx_accel;
#endif
int i;
_XLockMutex(_Xglobal_lock);
for (dpyPriv = glx_displays; dpyPriv; dpyPriv = dpyPriv->next) {
if (dpyPriv->dpy == dpy) {
_XUnlockMutex(_Xglobal_lock);
return dpyPriv;
}
}
/* Drop the lock while we create the display private. */
_XUnlockMutex(_Xglobal_lock);
dpyPriv = calloc(1, sizeof *dpyPriv);
if (!dpyPriv)
return NULL;
dpyPriv->codes = XInitExtension(dpy, __glXExtensionName);
if (!dpyPriv->codes) {
free(dpyPriv);
_XUnlockMutex(_Xglobal_lock);
return NULL;
}
dpyPriv->dpy = dpy;
dpyPriv->majorOpcode = dpyPriv->codes->major_opcode;
dpyPriv->serverGLXvendor = 0x0;
dpyPriv->serverGLXversion = 0x0;
/* See if the versions are compatible. This GLX implementation does not
* work with servers that only support GLX 1.0.
*/
if (!QueryVersion(dpy, dpyPriv->majorOpcode,
&dpyPriv->majorVersion, &dpyPriv->minorVersion)
|| (dpyPriv->majorVersion == 1 && dpyPriv->minorVersion < 1)) {
free(dpyPriv);
_XUnlockMutex(_Xglobal_lock);
return NULL;
}
for (i = 0; i < __GLX_NUMBER_EVENTS; i++) {
XESetWireToEvent(dpy, dpyPriv->codes->first_event + i, __glXWireToEvent);
XESetEventToWire(dpy, dpyPriv->codes->first_event + i, __glXEventToWire);
}
XESetCloseDisplay(dpy, dpyPriv->codes->extension, __glXCloseDisplay);
XESetErrorString (dpy, dpyPriv->codes->extension,__glXErrorString);
dpyPriv->glXDrawHash = __glxHashCreate();
#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
glx_direct = (getenv("LIBGL_ALWAYS_INDIRECT") == NULL);
glx_accel = (getenv("LIBGL_ALWAYS_SOFTWARE") == NULL);
dpyPriv->drawHash = __glxHashCreate();
/*
** Initialize the direct rendering per display data and functions.
** Note: This _must_ be done before calling any other DRI routines
** (e.g., those called in AllocAndFetchScreenConfigs).
*/
if (glx_direct && glx_accel) {
#if defined(HAVE_DRI3)
if (!getenv("LIBGL_DRI3_DISABLE"))
dpyPriv->dri3Display = dri3_create_display(dpy);
#endif
dpyPriv->dri2Display = dri2CreateDisplay(dpy);
dpyPriv->driDisplay = driCreateDisplay(dpy);
}
if (glx_direct)
dpyPriv->driswDisplay = driswCreateDisplay(dpy);
#endif
#ifdef GLX_USE_APPLEGL
if (!applegl_create_display(dpyPriv)) {
free(dpyPriv);
return NULL;
}
#endif
if (!AllocAndFetchScreenConfigs(dpy, dpyPriv)) {
free(dpyPriv);
return NULL;
}
__glX_send_client_info(dpyPriv);
/* Grab the lock again and add the dispay private, unless somebody
* beat us to initializing on this display in the meantime. */
_XLockMutex(_Xglobal_lock);
for (d = glx_displays; d; d = d->next) {
if (d->dpy == dpy) {
_XUnlockMutex(_Xglobal_lock);
glx_display_free(dpyPriv);
return d;
}
}
dpyPriv->next = glx_displays;
glx_displays = dpyPriv;
_XUnlockMutex(_Xglobal_lock);
return dpyPriv;
}
/*
* XextAddDisplay - add a display to this extension
*/
XExtDisplayInfo *XextAddDisplay (
XExtensionInfo *extinfo,
Display *dpy,
_Xconst char *ext_name,
XExtensionHooks *hooks,
int nevents,
XPointer data)
{
XExtDisplayInfo *dpyinfo;
dpyinfo = (XExtDisplayInfo *) Xmalloc (sizeof (XExtDisplayInfo));
if (!dpyinfo) return NULL;
dpyinfo->display = dpy;
dpyinfo->data = data;
dpyinfo->codes = XInitExtension (dpy, ext_name);
/*
* if the server has the extension, then we can initialize the
* appropriate function vectors
*/
if (dpyinfo->codes) {
int i, j;
for (i = 0, j = dpyinfo->codes->first_event; i < nevents; i++, j++) {
XESetWireToEvent (dpy, j, hooks->wire_to_event);
XESetEventToWire (dpy, j, hooks->event_to_wire);
}
/* register extension for XGE */
if (strcmp(ext_name, GE_NAME))
xgeExtRegister(dpy, dpyinfo->codes->major_opcode, hooks);
if (hooks->create_gc)
XESetCreateGC (dpy, dpyinfo->codes->extension, hooks->create_gc);
if (hooks->copy_gc)
XESetCopyGC (dpy, dpyinfo->codes->extension, hooks->copy_gc);
if (hooks->flush_gc)
XESetFlushGC (dpy, dpyinfo->codes->extension, hooks->flush_gc);
if (hooks->free_gc)
XESetFreeGC (dpy, dpyinfo->codes->extension, hooks->free_gc);
if (hooks->create_font)
XESetCreateFont (dpy, dpyinfo->codes->extension, hooks->create_font);
if (hooks->free_font)
XESetFreeFont (dpy, dpyinfo->codes->extension, hooks->free_font);
if (hooks->close_display)
XESetCloseDisplay (dpy, dpyinfo->codes->extension,
hooks->close_display);
if (hooks->error)
XESetError (dpy, dpyinfo->codes->extension, hooks->error);
if (hooks->error_string)
XESetErrorString (dpy, dpyinfo->codes->extension,
hooks->error_string);
} else if (hooks->close_display) {
/* The server doesn't have this extension.
* Use a private Xlib-internal extension to hang the close_display
* hook on so that the "cache" (extinfo->cur) is properly cleaned.
* (XBUG 7955)
*/
XExtCodes *codes = XAddExtension(dpy);
if (!codes) {
XFree(dpyinfo);
return NULL;
}
XESetCloseDisplay (dpy, codes->extension, hooks->close_display);
}
/*
* now, chain it onto the list
*/
_XLockMutex(_Xglobal_lock);
dpyinfo->next = extinfo->head;
extinfo->head = dpyinfo;
extinfo->cur = dpyinfo;
extinfo->ndisplays++;
_XUnlockMutex(_Xglobal_lock);
return dpyinfo;
}
