[PATCH 25/29] xf86: add callback for offloak sink setting support.

[Dave Airlie]

From: Dave Airlie <airlied at redhat.com>

This adds support for setting the offload sink to the xf86 ddx.

Signed-off-by: Dave Airlie <airlied at redhat.com>
---
 hw/xfree86/modes/xf86Crtc.c    |    5 ++++-
 hw/xfree86/modes/xf86RandR12.c |   27 +++++++++++++++++++++++++++
 2 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/hw/xfree86/modes/xf86Crtc.c b/hw/xfree86/modes/xf86Crtc.c
index 9e43c40..e5f58e7 100644
--- a/hw/xfree86/modes/xf86Crtc.c
+++ b/hw/xfree86/modes/xf86Crtc.c
@@ -728,7 +728,10 @@ xf86CrtcCloseScreen(ScreenPtr screen)
 
     /* detach any providers */
     if (config->randr_provider) {
-        if (config->randr_provider->output_source) {
+        if (config->randr_provider->offload_sink) {
+            DetachOffloadGPU(screen);
+            config->randr_provider->offload_sink = NULL;
+        } else if (config->randr_provider->output_source) {
             DetachOutputGPU(screen);
             config->randr_provider->output_source = NULL;
         } else
diff --git a/hw/xfree86/modes/xf86RandR12.c b/hw/xfree86/modes/xf86RandR12.c
index ce1bfe3..079331f 100644
--- a/hw/xfree86/modes/xf86RandR12.c
+++ b/hw/xfree86/modes/xf86RandR12.c
@@ -1791,6 +1791,32 @@ xf86RandR14ProviderSetOutputSource(ScreenPtr pScreen,
 }
 
 static Bool
+xf86RandR14ProviderSetOffloadSink(ScreenPtr pScreen,
+                                  RRProviderPtr provider,
+                                  RRProviderPtr sink_provider)
+{
+    if (!sink_provider) {
+        if (provider->offload_sink) {
+            ScreenPtr cmScreen = pScreen->current_master;
+            DetachOutputGPU(pScreen);
+            AttachUnboundGPU(cmScreen, pScreen);
+        }
+
+        provider->offload_sink = NULL;
+        return TRUE;
+    }
+
+    if (provider->offload_sink == sink_provider)
+        return TRUE;
+
+    DetachUnboundGPU(pScreen);
+    AttachOffloadGPU(sink_provider->pScreen, pScreen);
+
+    provider->offload_sink = sink_provider;
+    return TRUE;
+}
+
+static Bool
 xf86RandR14ProviderSetProperty(ScreenPtr pScreen,
                              RRProviderPtr randr_provider,
                              Atom property, RRPropertyValuePtr value)
@@ -1858,6 +1884,7 @@ xf86RandR12Init12(ScreenPtr pScreen)
     rp->rrSetConfig = NULL;
 
     rp->rrProviderSetOutputSource = xf86RandR14ProviderSetOutputSource;
+    rp->rrProviderSetOffloadSink = xf86RandR14ProviderSetOffloadSink;
 
     rp->rrProviderSetProperty = xf86RandR14ProviderSetProperty;
     rp->rrProviderGetProperty = xf86RandR14ProviderGetProperty;
-- 
1.7.10.2