egl_dri2: Fix initialization with EGL_DEFAULT_DISPLAY
[mesa.git] / src / glx / x11 / dri2.c
index 3b48cd9c1ca6171a5427f3e4ae07b75d0d187a56..91053d3fb61d539a49556e3f8c99842ec86b09b9 100644 (file)
  */
 
 
+#ifdef GLX_DIRECT_RENDERING
+
 #define NEED_REPLIES
+#include <stdio.h>
 #include <X11/Xlibint.h>
 #include <X11/extensions/Xext.h>
 #include <X11/extensions/extutil.h>
 #include <X11/extensions/dri2proto.h>
 #include "xf86drm.h"
 #include "dri2.h"
+#include "glxclient.h"
+#include "GL/glxext.h"
+
+/* Allow the build to work with an older versions of dri2proto.h and
+ * dri2tokens.h.
+ */
+#if DRI2_MINOR < 1
+#undef DRI2_MINOR
+#define DRI2_MINOR 1
+#define X_DRI2GetBuffersWithFormat 7
+#endif
+
 
 static char dri2ExtensionName[] = DRI2_NAME;
 static XExtensionInfo *dri2Info;
 static XEXT_GENERATE_CLOSE_DISPLAY (DRI2CloseDisplay, dri2Info)
+
+static Bool
+DRI2WireToEvent(Display *dpy, XEvent *event, xEvent *wire);
+static Status
+DRI2EventToWire(Display *dpy, XEvent *event, xEvent *wire);
+
 static /* const */ XExtensionHooks dri2ExtensionHooks = {
-    NULL,                              /* create_gc */
-    NULL,                              /* copy_gc */
-    NULL,                              /* flush_gc */
-    NULL,                              /* free_gc */
-    NULL,                              /* create_font */
-    NULL,                              /* free_font */
-    DRI2CloseDisplay,                  /* close_display */
-    NULL,                              /* wire_to_event */
-    NULL,                              /* event_to_wire */
-    NULL,                              /* error */
-    NULL,                              /* error_string */
+  NULL,                   /* create_gc */
+  NULL,                   /* copy_gc */
+  NULL,                   /* flush_gc */
+  NULL,                   /* free_gc */
+  NULL,                   /* create_font */
+  NULL,                   /* free_font */
+  DRI2CloseDisplay,       /* close_display */
+  DRI2WireToEvent,        /* wire_to_event */
+  DRI2EventToWire,        /* event_to_wire */
+  NULL,                   /* error */
+  NULL,                   /* error_string */
 };
 
-static XEXT_GENERATE_FIND_DISPLAY (DRI2FindDisplay, dri2Info, 
-                                  dri2ExtensionName, 
-                                  &dri2ExtensionHooks, 
-                                  0, NULL)
+static XEXT_GENERATE_FIND_DISPLAY (DRI2FindDisplay,
+                                   dri2Info,
+                                   dri2ExtensionName,
+                                   &dri2ExtensionHooks,
+                                   1, NULL)
 
-Bool DRI2QueryExtension(Display *dpy, int *eventBase, int *errorBase)
+static Bool
+DRI2WireToEvent(Display *dpy, XEvent *event, xEvent *wire)
 {
-    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
+   XExtDisplayInfo *info = DRI2FindDisplay(dpy);
+   XExtDisplayInfo *glx_info = __glXFindDisplay(dpy);
+   static int glx_event_base;
+   static Bool found_glx_info = False;
+
+   XextCheckExtension(dpy, info, dri2ExtensionName, False);
+
+   switch ((wire->u.u.type & 0x7f) - info->codes->first_event) {
+
+#ifdef X_DRI2SwapBuffers
+   case DRI2_BufferSwapComplete:
+   {
+      GLXBufferSwapComplete *aevent = (GLXBufferSwapComplete *)event;
+      xDRI2BufferSwapComplete *awire = (xDRI2BufferSwapComplete *)wire;
+      aevent->serial = _XSetLastRequestRead(dpy, (xGenericReply *) wire);
+      aevent->type =
+         (glx_info->codes->first_event + GLX_BufferSwapComplete) & 0x75;
+      aevent->send_event = (awire->type & 0x80) != 0;
+      aevent->display = dpy;
+      aevent->drawable = awire->drawable;
+      switch (awire->event_type) {
+      case DRI2_EXCHANGE_COMPLETE:
+        aevent->event_type = GLX_EXCHANGE_COMPLETE_INTEL;
+        break;
+      case DRI2_BLIT_COMPLETE:
+        aevent->event_type = GLX_BLIT_COMPLETE_INTEL;
+        break;
+      case DRI2_FLIP_COMPLETE:
+        aevent->event_type = GLX_FLIP_COMPLETE_INTEL;
+        break;
+      default:
+        /* unknown swap completion type */
+        return False;
+      }
+      aevent->ust = ((CARD64)awire->ust_hi << 32) | awire->ust_lo;
+      aevent->msc = ((CARD64)awire->msc_hi << 32) | awire->msc_lo;
+      aevent->sbc = ((CARD64)awire->sbc_hi << 32) | awire->sbc_lo;
+      return True;
+   }
+#endif
+
+   default:
+      /* client doesn't support server event */
+      break;
+   }
+
+   return False;
+}
 
-    if (XextHasExtension(info)) {
-       *eventBase = info->codes->first_event;
-       *errorBase = info->codes->first_error;
-       return True;
-    }
+/* We don't actually support this.  It doesn't make sense for clients to
+ * send each other DRI2 events.
+ */
+static Status
+DRI2EventToWire(Display *dpy, XEvent *event, xEvent *wire)
+{
+   XExtDisplayInfo *info = DRI2FindDisplay(dpy);
+
+   XextCheckExtension(dpy, info, dri2ExtensionName, False);
+
+   switch (event->type) {
+   default:
+      /* client doesn't support server event */
+      break;
+   }
 
-    return False;
+   return Success;
 }
 
-Bool DRI2QueryVersion(Display *dpy, int *major, int *minor)
+Bool
+DRI2QueryExtension(Display * dpy, int *eventBase, int *errorBase)
 {
-    XExtDisplayInfo *info = DRI2FindDisplay (dpy);
-    xDRI2QueryVersionReply rep;
-    xDRI2QueryVersionReq *req;
+   XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 
-    XextCheckExtension (dpy, info, dri2ExtensionName, False);
+   if (XextHasExtension(info)) {
+      *eventBase = info->codes->first_event;
+      *errorBase = info->codes->first_error;
+      return True;
+   }
 
-    LockDisplay(dpy);
-    GetReq(DRI2QueryVersion, req);
-    req->reqType = info->codes->major_opcode;
-    req->dri2ReqType = X_DRI2QueryVersion;
-    req->majorVersion = DRI2_MAJOR;
-    req->minorVersion = DRI2_MINOR;
-    if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
-       UnlockDisplay(dpy);
-       SyncHandle();
-       return False;
-    }
-    *major = rep.majorVersion;
-    *minor = rep.minorVersion;
-    UnlockDisplay(dpy);
-    SyncHandle();
+   return False;
+}
 
-    return True;
+Bool
+DRI2QueryVersion(Display * dpy, int *major, int *minor)
+{
+   XExtDisplayInfo *info = DRI2FindDisplay(dpy);
+   xDRI2QueryVersionReply rep;
+   xDRI2QueryVersionReq *req;
+
+   XextCheckExtension(dpy, info, dri2ExtensionName, False);
+
+   LockDisplay(dpy);
+   GetReq(DRI2QueryVersion, req);
+   req->reqType = info->codes->major_opcode;
+   req->dri2ReqType = X_DRI2QueryVersion;
+   req->majorVersion = DRI2_MAJOR;
+   req->minorVersion = DRI2_MINOR;
+   if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
+      UnlockDisplay(dpy);
+      SyncHandle();
+      return False;
+   }
+   *major = rep.majorVersion;
+   *minor = rep.minorVersion;
+   UnlockDisplay(dpy);
+   SyncHandle();
+
+   return True;
 }
 
-Bool DRI2Connect(Display *dpy, XID window,
-                char **driverName, char **deviceName)
+Bool
+DRI2Connect(Display * dpy, XID window, char **driverName, char **deviceName)
 {
-    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
-    xDRI2ConnectReply rep;
-    xDRI2ConnectReq *req;
+   XExtDisplayInfo *info = DRI2FindDisplay(dpy);
+   xDRI2ConnectReply rep;
+   xDRI2ConnectReq *req;
+
+   XextCheckExtension(dpy, info, dri2ExtensionName, False);
+
+   LockDisplay(dpy);
+   GetReq(DRI2Connect, req);
+   req->reqType = info->codes->major_opcode;
+   req->dri2ReqType = X_DRI2Connect;
+   req->window = window;
+   req->driverType = DRI2DriverDRI;
+   if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
+      UnlockDisplay(dpy);
+      SyncHandle();
+      return False;
+   }
+
+   if (rep.driverNameLength == 0 && rep.deviceNameLength == 0) {
+      UnlockDisplay(dpy);
+      SyncHandle();
+      return False;
+   }
+
+   *driverName = Xmalloc(rep.driverNameLength + 1);
+   if (*driverName == NULL) {
+      _XEatData(dpy,
+                ((rep.driverNameLength + 3) & ~3) +
+                ((rep.deviceNameLength + 3) & ~3));
+      UnlockDisplay(dpy);
+      SyncHandle();
+      return False;
+   }
+   _XReadPad(dpy, *driverName, rep.driverNameLength);
+   (*driverName)[rep.driverNameLength] = '\0';
+
+   *deviceName = Xmalloc(rep.deviceNameLength + 1);
+   if (*deviceName == NULL) {
+      Xfree(*driverName);
+      _XEatData(dpy, ((rep.deviceNameLength + 3) & ~3));
+      UnlockDisplay(dpy);
+      SyncHandle();
+      return False;
+   }
+   _XReadPad(dpy, *deviceName, rep.deviceNameLength);
+   (*deviceName)[rep.deviceNameLength] = '\0';
+
+   UnlockDisplay(dpy);
+   SyncHandle();
+
+   return True;
+}
 
-    XextCheckExtension (dpy, info, dri2ExtensionName, False);
+Bool
+DRI2Authenticate(Display * dpy, XID window, drm_magic_t magic)
+{
+   XExtDisplayInfo *info = DRI2FindDisplay(dpy);
+   xDRI2AuthenticateReq *req;
+   xDRI2AuthenticateReply rep;
 
-    LockDisplay(dpy);
-    GetReq(DRI2Connect, req);
-    req->reqType = info->codes->major_opcode;
-    req->dri2ReqType = X_DRI2Connect;
-    req->window = window;
-    req->driverType = DRI2DriverDRI;
-    if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
-       UnlockDisplay(dpy);
-       SyncHandle();
-       return False;
-    }
+   XextCheckExtension(dpy, info, dri2ExtensionName, False);
 
-    if (rep.driverNameLength == 0 && rep.deviceNameLength == 0) {
-       UnlockDisplay(dpy);
-       SyncHandle();
-       return False;
-    }
+   LockDisplay(dpy);
+   GetReq(DRI2Authenticate, req);
+   req->reqType = info->codes->major_opcode;
+   req->dri2ReqType = X_DRI2Authenticate;
+   req->window = window;
+   req->magic = magic;
 
-    *driverName = Xmalloc(rep.driverNameLength + 1);
-    if (*driverName == NULL) {
-       _XEatData(dpy, 
-                 ((rep.driverNameLength + 3) & ~3) +
-                 ((rep.deviceNameLength + 3) & ~3));
-       UnlockDisplay(dpy);
-       SyncHandle();
-       return False;
-    }
-    _XReadPad(dpy, *driverName, rep.driverNameLength);
-    (*driverName)[rep.driverNameLength] = '\0';
+   if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
+      UnlockDisplay(dpy);
+      SyncHandle();
+      return False;
+   }
 
-    *deviceName = Xmalloc(rep.deviceNameLength + 1);
-    if (*deviceName == NULL) {
-       Xfree(*driverName);
-       _XEatData(dpy, ((rep.deviceNameLength + 3) & ~3));
-       UnlockDisplay(dpy);
-       SyncHandle();
-       return False;
-    }
-    _XReadPad(dpy, *deviceName, rep.deviceNameLength);
-    (*deviceName)[rep.deviceNameLength] = '\0';
+   UnlockDisplay(dpy);
+   SyncHandle();
 
-    UnlockDisplay(dpy);
-    SyncHandle();
+   return rep.authenticated;
+}
 
-    return True;
+void
+DRI2CreateDrawable(Display * dpy, XID drawable)
+{
+   XExtDisplayInfo *info = DRI2FindDisplay(dpy);
+   xDRI2CreateDrawableReq *req;
+
+   XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
+
+   LockDisplay(dpy);
+   GetReq(DRI2CreateDrawable, req);
+   req->reqType = info->codes->major_opcode;
+   req->dri2ReqType = X_DRI2CreateDrawable;
+   req->drawable = drawable;
+   UnlockDisplay(dpy);
+   SyncHandle();
 }
 
-Bool DRI2Authenticate(Display *dpy, XID window, drm_magic_t magic)
+void
+DRI2DestroyDrawable(Display * dpy, XID drawable)
 {
-    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
-    xDRI2AuthenticateReq *req;
-    xDRI2AuthenticateReply rep;
+   XExtDisplayInfo *info = DRI2FindDisplay(dpy);
+   xDRI2DestroyDrawableReq *req;
 
-    XextCheckExtension (dpy, info, dri2ExtensionName, False);
+   XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
 
-    LockDisplay(dpy);
-    GetReq(DRI2Authenticate, req);
-    req->reqType = info->codes->major_opcode;
-    req->dri2ReqType = X_DRI2Authenticate;
-    req->window = window;
-    req->magic = magic;
+   XSync(dpy, False);
 
-    if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
-       UnlockDisplay(dpy);
-       SyncHandle();
-       return False;
-    }
+   LockDisplay(dpy);
+   GetReq(DRI2DestroyDrawable, req);
+   req->reqType = info->codes->major_opcode;
+   req->dri2ReqType = X_DRI2DestroyDrawable;
+   req->drawable = drawable;
+   UnlockDisplay(dpy);
+   SyncHandle();
+}
+
+DRI2Buffer *
+DRI2GetBuffers(Display * dpy, XID drawable,
+               int *width, int *height,
+               unsigned int *attachments, int count, int *outCount)
+{
+   XExtDisplayInfo *info = DRI2FindDisplay(dpy);
+   xDRI2GetBuffersReply rep;
+   xDRI2GetBuffersReq *req;
+   DRI2Buffer *buffers;
+   xDRI2Buffer repBuffer;
+   CARD32 *p;
+   int i;
+
+   XextCheckExtension(dpy, info, dri2ExtensionName, False);
+
+   LockDisplay(dpy);
+   GetReqExtra(DRI2GetBuffers, count * 4, req);
+   req->reqType = info->codes->major_opcode;
+   req->dri2ReqType = X_DRI2GetBuffers;
+   req->drawable = drawable;
+   req->count = count;
+   p = (CARD32 *) & req[1];
+   for (i = 0; i < count; i++)
+      p[i] = attachments[i];
+
+   if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
+      UnlockDisplay(dpy);
+      SyncHandle();
+      return NULL;
+   }
+
+   *width = rep.width;
+   *height = rep.height;
+   *outCount = rep.count;
+
+   buffers = Xmalloc(rep.count * sizeof buffers[0]);
+   if (buffers == NULL) {
+      _XEatData(dpy, rep.count * sizeof repBuffer);
+      UnlockDisplay(dpy);
+      SyncHandle();
+      return NULL;
+   }
+
+   for (i = 0; i < rep.count; i++) {
+      _XReadPad(dpy, (char *) &repBuffer, sizeof repBuffer);
+      buffers[i].attachment = repBuffer.attachment;
+      buffers[i].name = repBuffer.name;
+      buffers[i].pitch = repBuffer.pitch;
+      buffers[i].cpp = repBuffer.cpp;
+      buffers[i].flags = repBuffer.flags;
+   }
+
+   UnlockDisplay(dpy);
+   SyncHandle();
+
+   return buffers;
+}
 
-    UnlockDisplay(dpy);
-    SyncHandle();
 
-    return rep.authenticated;
+DRI2Buffer *
+DRI2GetBuffersWithFormat(Display * dpy, XID drawable,
+                         int *width, int *height,
+                         unsigned int *attachments, int count, int *outCount)
+{
+   XExtDisplayInfo *info = DRI2FindDisplay(dpy);
+   xDRI2GetBuffersReply rep;
+   xDRI2GetBuffersReq *req;
+   DRI2Buffer *buffers;
+   xDRI2Buffer repBuffer;
+   CARD32 *p;
+   int i;
+
+   XextCheckExtension(dpy, info, dri2ExtensionName, False);
+
+   LockDisplay(dpy);
+   GetReqExtra(DRI2GetBuffers, count * (4 * 2), req);
+   req->reqType = info->codes->major_opcode;
+   req->dri2ReqType = X_DRI2GetBuffersWithFormat;
+   req->drawable = drawable;
+   req->count = count;
+   p = (CARD32 *) & req[1];
+   for (i = 0; i < (count * 2); i++)
+      p[i] = attachments[i];
+
+   if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
+      UnlockDisplay(dpy);
+      SyncHandle();
+      return NULL;
+   }
+
+   *width = rep.width;
+   *height = rep.height;
+   *outCount = rep.count;
+
+   buffers = Xmalloc(rep.count * sizeof buffers[0]);
+   if (buffers == NULL) {
+      _XEatData(dpy, rep.count * sizeof repBuffer);
+      UnlockDisplay(dpy);
+      SyncHandle();
+      return NULL;
+   }
+
+   for (i = 0; i < rep.count; i++) {
+      _XReadPad(dpy, (char *) &repBuffer, sizeof repBuffer);
+      buffers[i].attachment = repBuffer.attachment;
+      buffers[i].name = repBuffer.name;
+      buffers[i].pitch = repBuffer.pitch;
+      buffers[i].cpp = repBuffer.cpp;
+      buffers[i].flags = repBuffer.flags;
+   }
+
+   UnlockDisplay(dpy);
+   SyncHandle();
+
+   return buffers;
 }
 
-void DRI2CreateDrawable(Display *dpy, XID drawable)
+
+void
+DRI2CopyRegion(Display * dpy, XID drawable, XserverRegion region,
+               CARD32 dest, CARD32 src)
+{
+   XExtDisplayInfo *info = DRI2FindDisplay(dpy);
+   xDRI2CopyRegionReq *req;
+   xDRI2CopyRegionReply rep;
+
+   XextSimpleCheckExtension(dpy, info, dri2ExtensionName);
+
+   LockDisplay(dpy);
+   GetReq(DRI2CopyRegion, req);
+   req->reqType = info->codes->major_opcode;
+   req->dri2ReqType = X_DRI2CopyRegion;
+   req->drawable = drawable;
+   req->region = region;
+   req->dest = dest;
+   req->src = src;
+
+   _XReply(dpy, (xReply *) & rep, 0, xFalse);
+
+   UnlockDisplay(dpy);
+   SyncHandle();
+}
+
+#ifdef X_DRI2SwapBuffers
+static void
+load_swap_req(xDRI2SwapBuffersReq *req, CARD64 target, CARD64 divisor,
+            CARD64 remainder)
+{
+    req->target_msc_hi = target >> 32;
+    req->target_msc_lo = target & 0xffffffff;
+    req->divisor_hi = divisor >> 32;
+    req->divisor_lo = divisor & 0xffffffff;
+    req->remainder_hi = remainder >> 32;
+    req->remainder_lo = remainder & 0xffffffff;
+}
+
+static CARD64
+vals_to_card64(CARD32 lo, CARD32 hi)
+{
+    return (CARD64)hi << 32 | lo;
+}
+
+void DRI2SwapBuffers(Display *dpy, XID drawable, CARD64 target_msc,
+                    CARD64 divisor, CARD64 remainder, CARD64 *count)
 {
     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
-    xDRI2CreateDrawableReq *req;
+    xDRI2SwapBuffersReq *req;
+    xDRI2SwapBuffersReply rep;
 
     XextSimpleCheckExtension (dpy, info, dri2ExtensionName);
 
     LockDisplay(dpy);
-    GetReq(DRI2CreateDrawable, req);
+    GetReq(DRI2SwapBuffers, req);
     req->reqType = info->codes->major_opcode;
-    req->dri2ReqType = X_DRI2CreateDrawable;
+    req->dri2ReqType = X_DRI2SwapBuffers;
     req->drawable = drawable;
+    load_swap_req(req, target_msc, divisor, remainder);
+
+    _XReply(dpy, (xReply *)&rep, 0, xFalse);
+
+    *count = vals_to_card64(rep.swap_lo, rep.swap_hi);
+
     UnlockDisplay(dpy);
     SyncHandle();
 }
+#endif
 
-void DRI2DestroyDrawable(Display *dpy, XID drawable)
+#ifdef X_DRI2GetMSC
+Bool DRI2GetMSC(Display *dpy, XID drawable, CARD64 *ust, CARD64 *msc,
+               CARD64 *sbc)
 {
     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
-    xDRI2DestroyDrawableReq *req;
-
-    XextSimpleCheckExtension (dpy, info, dri2ExtensionName);
+    xDRI2GetMSCReq *req;
+    xDRI2MSCReply rep;
 
-    XSync(dpy, False);
+    XextCheckExtension (dpy, info, dri2ExtensionName, False);
 
     LockDisplay(dpy);
-    GetReq(DRI2DestroyDrawable, req);
+    GetReq(DRI2GetMSC, req);
     req->reqType = info->codes->major_opcode;
-    req->dri2ReqType = X_DRI2DestroyDrawable;
+    req->dri2ReqType = X_DRI2GetMSC;
     req->drawable = drawable;
+
+    if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
+       UnlockDisplay(dpy);
+       SyncHandle();
+       return False;
+    }
+
+    *ust = vals_to_card64(rep.ust_lo, rep.ust_hi);
+    *msc = vals_to_card64(rep.msc_lo, rep.msc_hi);
+    *sbc = vals_to_card64(rep.sbc_lo, rep.sbc_hi);
+
     UnlockDisplay(dpy);
     SyncHandle();
+
+    return True;
+}
+#endif
+
+#ifdef X_DRI2WaitMSC
+static void
+load_msc_req(xDRI2WaitMSCReq *req, CARD64 target, CARD64 divisor,
+            CARD64 remainder)
+{
+    req->target_msc_hi = target >> 32;
+    req->target_msc_lo = target & 0xffffffff;
+    req->divisor_hi = divisor >> 32;
+    req->divisor_lo = divisor & 0xffffffff;
+    req->remainder_hi = remainder >> 32;
+    req->remainder_lo = remainder & 0xffffffff;
 }
 
-DRI2Buffer *DRI2GetBuffers(Display *dpy, XID drawable,
-                          int *width, int *height,
-                          unsigned int *attachments, int count,
-                          int *outCount)
+Bool DRI2WaitMSC(Display *dpy, XID drawable, CARD64 target_msc, CARD64 divisor,
+                CARD64 remainder, CARD64 *ust, CARD64 *msc, CARD64 *sbc)
 {
     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
-    xDRI2GetBuffersReply rep;
-    xDRI2GetBuffersReq *req;
-    DRI2Buffer *buffers;
-    xDRI2Buffer repBuffer;
-    CARD32 *p;
-    int i;
+    xDRI2WaitMSCReq *req;
+    xDRI2MSCReply rep;
 
     XextCheckExtension (dpy, info, dri2ExtensionName, False);
 
     LockDisplay(dpy);
-    GetReqExtra(DRI2GetBuffers, count * 4, req);
+    GetReq(DRI2WaitMSC, req);
     req->reqType = info->codes->major_opcode;
-    req->dri2ReqType = X_DRI2GetBuffers;
+    req->dri2ReqType = X_DRI2WaitMSC;
     req->drawable = drawable;
-    req->count = count;
-    p = (CARD32 *) &req[1];
-    for (i = 0; i < count; i++)
-       p[i] = attachments[i];
+    load_msc_req(req, target_msc, divisor, remainder);
 
     if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
        UnlockDisplay(dpy);
        SyncHandle();
-       return NULL;
+       return False;
     }
 
-    *width = rep.width;
-    *height = rep.height;
-    *outCount = rep.count;
+    *ust = ((CARD64)rep.ust_hi << 32) | (CARD64)rep.ust_lo;
+    *msc = ((CARD64)rep.msc_hi << 32) | (CARD64)rep.msc_lo;
+    *sbc = ((CARD64)rep.sbc_hi << 32) | (CARD64)rep.sbc_lo;
+
+    UnlockDisplay(dpy);
+    SyncHandle();
+
+    return True;
+}
+#endif
+
+#ifdef X_DRI2WaitSBC
+static void
+load_sbc_req(xDRI2WaitSBCReq *req, CARD64 target)
+{
+    req->target_sbc_hi = target >> 32;
+    req->target_sbc_lo = target & 0xffffffff;
+}
+
+Bool DRI2WaitSBC(Display *dpy, XID drawable, CARD64 target_sbc, CARD64 *ust,
+                CARD64 *msc, CARD64 *sbc)
+{
+    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
+    xDRI2WaitSBCReq *req;
+    xDRI2MSCReply rep;
+
+    XextCheckExtension (dpy, info, dri2ExtensionName, False);
+
+    LockDisplay(dpy);
+    GetReq(DRI2WaitSBC, req);
+    req->reqType = info->codes->major_opcode;
+    req->dri2ReqType = X_DRI2WaitSBC;
+    req->drawable = drawable;
+    load_sbc_req(req, target_sbc);
 
-    buffers = Xmalloc(count * sizeof buffers[0]);
-    if (buffers == NULL) {
-       _XEatData(dpy, rep.count * sizeof repBuffer);
+    if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
        UnlockDisplay(dpy);
        SyncHandle();
-       return NULL;
+       return False;
     }
 
-    for (i = 0; i < rep.count; i++) {
-       _XReadPad(dpy, (char *) &repBuffer, sizeof repBuffer);
-       buffers[i].attachment = repBuffer.attachment;
-       buffers[i].name = repBuffer.name;
-       buffers[i].pitch = repBuffer.pitch;
-       buffers[i].cpp = repBuffer.cpp;
-       buffers[i].flags = repBuffer.flags;
-    }
+    *ust = ((CARD64)rep.ust_hi << 32) | rep.ust_lo;
+    *msc = ((CARD64)rep.msc_hi << 32) | rep.msc_lo;
+    *sbc = ((CARD64)rep.sbc_hi << 32) | rep.sbc_lo;
 
     UnlockDisplay(dpy);
     SyncHandle();
 
-    return buffers;
+    return True;
 }
+#endif
 
-void DRI2CopyRegion(Display *dpy, XID drawable, XserverRegion region,
-                   CARD32 dest, CARD32 src)
+#ifdef X_DRI2SwapInterval
+void DRI2SwapInterval(Display *dpy, XID drawable, int interval)
 {
     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
-    xDRI2CopyRegionReq *req;
-    xDRI2CopyRegionReply rep;
+    xDRI2SwapIntervalReq *req;
 
     XextSimpleCheckExtension (dpy, info, dri2ExtensionName);
 
     LockDisplay(dpy);
-    GetReq(DRI2CopyRegion, req);
+    GetReq(DRI2SwapInterval, req);
     req->reqType = info->codes->major_opcode;
-    req->dri2ReqType = X_DRI2CopyRegion;
+    req->dri2ReqType = X_DRI2SwapInterval;
     req->drawable = drawable;
-    req->region = region;
-    req->dest = dest;
-    req->src = src;
-
-    _XReply(dpy, (xReply *)&rep, 0, xFalse);
-
+    req->interval = interval;
     UnlockDisplay(dpy);
     SyncHandle();
 }
+#endif
+
+#endif /* GLX_DIRECT_RENDERING */