diff options
Diffstat (limited to 'libXext/src/XSync.c')
| -rw-r--r-- | libXext/src/XSync.c | 258 |
1 files changed, 231 insertions, 27 deletions
diff --git a/libXext/src/XSync.c b/libXext/src/XSync.c index 250d10cd3..9fdb47e2f 100644 --- a/libXext/src/XSync.c +++ b/libXext/src/XSync.c @@ -92,21 +92,107 @@ static XExtensionHooks sync_extension_hooks = { static char *sync_error_list[] = {
"BadCounter",
"BadAlarm",
+ "BadFence",
};
+typedef struct _SyncVersionInfoRec {
+ short major;
+ short minor;
+ int num_errors;
+} SyncVersionInfo;
+
+static /* const */ SyncVersionInfo supported_versions[] = {
+ { 3 /* major */, 0 /* minor */, 2 /* num_errors */ },
+ { 3 /* major */, 1 /* minor */, 3 /* num_errors */ },
+};
+
+#define NUM_VERSIONS (sizeof(supported_versions)/sizeof(supported_versions[0]))
+#define GET_VERSION(info) ((info) ? (const SyncVersionInfo*)(info)->data : NULL)
+#define IS_VERSION_SUPPORTED(info) (!!GET_VERSION(info))
+
static
-XEXT_GENERATE_FIND_DISPLAY(find_display, sync_info,
- sync_extension_name,
- &sync_extension_hooks,
- XSyncNumberEvents, (XPointer) NULL)
+const SyncVersionInfo* GetVersionInfo(Display *dpy)
+{
+ xSyncInitializeReply rep;
+ xSyncInitializeReq *req;
+ XExtCodes codes;
+ int i;
+
+ if (!XQueryExtension(dpy, sync_extension_name,
+ &codes.major_opcode,
+ &codes.first_event,
+ &codes.first_error))
+ return NULL;
+
+ LockDisplay(dpy);
+ GetReq(SyncInitialize, req);
+ req->reqType = codes.major_opcode;
+ req->syncReqType = X_SyncInitialize;
+ req->majorVersion = SYNC_MAJOR_VERSION;
+ req->minorVersion = SYNC_MINOR_VERSION;
+ if (!_XReply(dpy, (xReply *) & rep, 0, xTrue))
+ {
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return NULL;
+ }
+ UnlockDisplay(dpy);
+ SyncHandle();
+
+ for (i = 0; i < NUM_VERSIONS; i++) {
+ if (supported_versions[i].major == rep.majorVersion &&
+ supported_versions[i].minor == rep.minorVersion) {
+ return &supported_versions[i];
+ }
+ }
+
+ return NULL;
+}
+
+static
+XExtDisplayInfo *find_display_create_optional(Display *dpy, Bool create)
+{
+ XExtDisplayInfo *dpyinfo;
+
+ if (!sync_info) {
+ if (!(sync_info = XextCreateExtension())) return NULL;
+ }
+
+ if (!(dpyinfo = XextFindDisplay (sync_info, dpy)) && create) {
+ dpyinfo = XextAddDisplay(sync_info, dpy,
+ sync_extension_name,
+ &sync_extension_hooks,
+ XSyncNumberEvents,
+ (XPointer)GetVersionInfo(dpy));
+ }
+
+ return dpyinfo;
+}
+
+static
+XExtDisplayInfo *find_display (Display *dpy)
+{
+ return find_display_create_optional(dpy, True);
+}
static
XEXT_GENERATE_CLOSE_DISPLAY(close_display, sync_info)
static
-XEXT_GENERATE_ERROR_STRING(error_string, sync_extension_name,
- XSyncNumberErrors, sync_error_list)
+char *error_string(Display *dpy, int code, XExtCodes *codes, char *buf, int n)
+{
+ XExtDisplayInfo *info = find_display_create_optional(dpy, False);
+ int nerr = IS_VERSION_SUPPORTED(info) ? GET_VERSION(info)->num_errors : 0;
+ code -= codes->first_error;
+ if (code >= 0 && code < nerr) {
+ char tmp[256];
+ sprintf (tmp, "%s.%d", sync_extension_name, code);
+ XGetErrorDatabaseText (dpy, "XProtoError", tmp, sync_error_list[code], buf, n);
+ return buf;
+ }
+ return (char *)0;
+}
static Bool
wire_to_event(Display *dpy, XEvent *event, xEvent *wire)
@@ -231,32 +317,17 @@ XSyncInitialize( int *major_version_return, int *minor_version_return)
{
XExtDisplayInfo *info = find_display(dpy);
- xSyncInitializeReply rep;
- xSyncInitializeReq *req;
SyncCheckExtension(dpy, info, False);
- LockDisplay(dpy);
- GetReq(SyncInitialize, req);
- req->reqType = info->codes->major_opcode;
- req->syncReqType = X_SyncInitialize;
- req->majorVersion = SYNC_MAJOR_VERSION;
- req->minorVersion = SYNC_MINOR_VERSION;
- if (!_XReply(dpy, (xReply *) & rep, 0, xTrue))
- {
- UnlockDisplay(dpy);
- SyncHandle();
+ if (IS_VERSION_SUPPORTED(info)) {
+ *major_version_return = GET_VERSION(info)->major;
+ *minor_version_return = GET_VERSION(info)->minor;
+
+ return True;
+ } else {
return False;
}
- UnlockDisplay(dpy);
- SyncHandle();
- *major_version_return = rep.majorVersion;
- *minor_version_return = rep.minorVersion;
- return ((rep.majorVersion == SYNC_MAJOR_VERSION)
-#if SYNC_MINOR_VERSION > 0 /* avoid compiler warning */
- && (rep.minorVersion >= SYNC_MINOR_VERSION)
-#endif
- );
}
XSyncSystemCounter *
@@ -691,6 +762,139 @@ XSyncGetPriority(Display *dpy, XID client_resource_id, int *return_priority) return True;
}
+XSyncFence
+XSyncCreateFence(Display *dpy, Drawable d, Bool initially_triggered)
+{
+ XExtDisplayInfo *info = find_display(dpy);
+ xSyncCreateFenceReq *req;
+ XSyncFence id;
+
+ SyncCheckExtension(dpy, info, None);
+
+ LockDisplay(dpy);
+ GetReq(SyncCreateFence, req);
+ req->reqType = info->codes->major_opcode;
+ req->syncReqType = X_SyncCreateFence;
+
+ req->d = d;
+ id = req->fid = XAllocID(dpy);
+ req->initially_triggered = initially_triggered;
+
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return id;
+}
+
+Bool
+XSyncTriggerFence(Display *dpy, XSyncFence fence)
+{
+ XExtDisplayInfo *info = find_display(dpy);
+ xSyncTriggerFenceReq *req;
+
+ SyncCheckExtension(dpy, info, None);
+
+ LockDisplay(dpy);
+ GetReq(SyncTriggerFence, req);
+ req->reqType = info->codes->major_opcode;
+ req->syncReqType = X_SyncTriggerFence;
+
+ req->fid = fence;
+
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return True;
+}
+
+Bool
+XSyncResetFence(Display *dpy, XSyncFence fence)
+{
+ XExtDisplayInfo *info = find_display(dpy);
+ xSyncResetFenceReq *req;
+
+ SyncCheckExtension(dpy, info, None);
+
+ LockDisplay(dpy);
+ GetReq(SyncResetFence, req);
+ req->reqType = info->codes->major_opcode;
+ req->syncReqType = X_SyncResetFence;
+
+ req->fid = fence;
+
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return True;
+}
+
+Bool
+XSyncDestroyFence(Display *dpy, XSyncFence fence)
+{
+ XExtDisplayInfo *info = find_display(dpy);
+ xSyncDestroyFenceReq *req;
+
+ SyncCheckExtension(dpy, info, None);
+
+ LockDisplay(dpy);
+ GetReq(SyncDestroyFence, req);
+ req->reqType = info->codes->major_opcode;
+ req->syncReqType = X_SyncDestroyFence;
+
+ req->fid = fence;
+
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return True;
+}
+
+Bool
+XSyncQueryFence(Display *dpy, XSyncFence fence, Bool *triggered)
+{
+ XExtDisplayInfo *info = find_display(dpy);
+ xSyncQueryFenceReply rep;
+ xSyncQueryFenceReq *req;
+
+ SyncCheckExtension(dpy, info, None);
+
+ LockDisplay(dpy);
+ GetReq(SyncQueryFence, req);
+ req->reqType = info->codes->major_opcode;
+ req->syncReqType = X_SyncQueryFence;
+ req->fid = fence;
+
+ if (!_XReply(dpy, (xReply *) & rep, 0, xFalse))
+ {
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return False;
+ }
+ if (triggered)
+ *triggered = rep.triggered;
+
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return True;
+}
+
+Bool
+XSyncAwaitFence(Display *dpy, const XSyncFence *fence_list, int n_fences)
+{
+ XExtDisplayInfo *info = find_display(dpy);
+ xSyncAwaitFenceReq *req;
+
+ SyncCheckExtension(dpy, info, False);
+
+ LockDisplay(dpy);
+ GetReq(SyncAwaitFence, req);
+ req->reqType = info->codes->major_opcode;
+ req->syncReqType = X_SyncAwaitFence;
+ SetReqLen(req, n_fences, n_fences);
+
+ Data32(dpy, (char *)fence_list, sizeof(CARD32) * n_fences);
+
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return True;
+}
+
/*
* Functions corresponding to the macros for manipulating 64-bit values
*/
|