Present: add PresentPixmapSynced

Adds an augmented version of PresentPixmap supporting explicit
synchronization with a direct rendering device. This takes the form of
timeline DRM synchronization objects, along with acquire and release
points on those timelines. Implementations advertising
PresentCapabilitySyncobj will wait for the acquire point to be signaled
before executing the PresentPixmap request, and signal the release point
after any GPU operations on the pixmap have completed.

Signed-off-by: Erik Kurzinger <ekurzinger@nvidia.com>

1 files changed, 32 insertions, 0 deletions

diff --git a/include/X11/extensions/presentproto.h b/include/X11/extensions/presentproto.h
index d8dc6d2..ea80863 100644
--- a/include/X11/extensions/presentproto.h
+++ b/include/X11/extensions/presentproto.h
@@ -24,6 +24,7 @@
 #define _PRESENT_PROTO_H_
 
 #include <X11/extensions/presenttokens.h>
+#include <X11/extensions/dri3proto.h>
 
 #define Window CARD32
 #define Pixmap CARD32
@@ -136,6 +137,37 @@ typedef struct {
 } xPresentQueryCapabilitiesReply;
 #define sz_xPresentQueryCapabilitiesReply       32
 
+typedef struct {
+    CARD8   reqType;
+    CARD8   presentReqType;
+    CARD16  length;
+    Window  window;
+
+    Pixmap  pixmap;
+    CARD32  serial;
+
+    Region  valid;
+    Region  update;
+
+    INT16   x_off;
+    INT16   y_off;
+    CARD32  target_crtc;
+
+    DRI3Syncobj acquire_syncobj;
+    DRI3Syncobj release_syncobj;
+    CARD64 acquire_point;
+    CARD64 release_point;
+
+    CARD32  options;
+    CARD32  pad1;
+
+    CARD64  target_msc;
+    CARD64  divisor;
+    CARD64  remainder;
+    /* followed by a LISTofPRESENTNOTIFY */
+} xPresentPixmapSyncedReq;
+#define sz_xPresentPixmapSyncedReq	88
+
 /*
  * Events
  *