Keep track of how many SW cursors are visible on each screen

And use this to determine when we cannot use page flipping for DRI
clients. We previously did this based on whether the HW cursor cannot
be used on at least one CRTC, which had at least two issues:

* Even while the HW cursor cannot be used, no SW cursor may actually be
  visible (e.g. because all cursors are disabled), in which case we can
  use page flipping for DRI clients anyway
* Even while the HW cursor can be used, there may be SW cursors visible
  from non-core pointer devices, in which case we cannot use page
  flipping for DRI clients anyway

(Ported from amdgpu commit 69e20839bfeb3ee0b0a732d72de0a32d6c5435fc)
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/src/radeon.h b/src/radeon.h
index cc5dc09f..9658e029 100644
--- a/src/radeon.h
+++ b/src/radeon.h
@@ -500,6 +500,13 @@ struct radeon_client_priv {
     uint_fast32_t     needs_flush;
 };
 
+struct radeon_device_priv {
+    CursorPtr cursor;
+    Bool sprite_visible;
+};
+
+extern DevScreenPrivateKeyRec radeon_device_private_key;
+
 typedef struct {
     EntityInfoPtr     pEnt;
     pciVideoPtr       PciInfo;
@@ -550,6 +557,12 @@ typedef struct {
     CreateScreenResourcesProcPtr CreateScreenResources;
     CreateWindowProcPtr CreateWindow;
     WindowExposuresProcPtr WindowExposures;
+    void (*SetCursor) (DeviceIntPtr pDev, ScreenPtr pScreen,
+		       CursorPtr pCursor, int x, int y);
+    void (*MoveCursor) (DeviceIntPtr pDev, ScreenPtr pScreen, int x, int y);
+
+    /* Number of SW cursors currently visible on this screen */
+    int sprites_visible;
 
     Bool              IsSecondary;