randr: add hooks for offload sink provider protocol

This adds the protocol handler and associated providers handling
for the offload slaves, it allows two providers to be connected as
offload sink/source.

Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/randr/randrstr.h b/randr/randrstr.h
index d7b080486..64c9afbb3 100644
--- a/randr/randrstr.h
+++ b/randr/randrstr.h
@@ -165,6 +165,7 @@ struct _rrProvider {
     int nameLength;
     RRPropertyPtr properties;
     Bool pendingProperties;
+    struct _rrProvider *offload_sink;
     struct _rrProvider *output_source;
 };
 
@@ -231,6 +232,11 @@ typedef Bool (*RRProviderSetOutputSourceProcPtr)(ScreenPtr pScreen,
                                           RRProviderPtr provider,
                                           RRProviderPtr output_source);
 
+typedef Bool (*RRProviderSetOffloadSinkProcPtr)(ScreenPtr pScreen,
+                                         RRProviderPtr provider,
+                                         RRProviderPtr offload_sink);
+
+
 /* These are for 1.0 compatibility */
 
 typedef struct _rrRefresh {
@@ -283,6 +289,7 @@ typedef struct _rrScrPriv {
     RRCrtcSetScanoutPixmapProcPtr rrCrtcSetScanoutPixmap;
 
     RRProviderSetOutputSourceProcPtr rrProviderSetOutputSource;
+    RRProviderSetOffloadSinkProcPtr rrProviderSetOffloadSink;
     RRProviderGetPropertyProcPtr rrProviderGetProperty;
     RRProviderSetPropertyProcPtr rrProviderSetProperty;
     /*
@@ -893,6 +900,9 @@ ProcRRGetProviderInfo(ClientPtr client);
 extern _X_EXPORT int
 ProcRRSetProviderOutputSource(ClientPtr client);
 
+extern _X_EXPORT int
+ProcRRSetProviderOffloadSink(ClientPtr client);
+
 extern _X_EXPORT Bool
 RRProviderInit(void);