[PATCH] dri2: Handle PRIME for source buffer as well in radeon_dri2_copy_region2

[Michel Dänzer]

From: Michel Dänzer <michel.daenzer at amd.com>

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=77810
Signed-off-by: Michel Dänzer <michel.daenzer at amd.com>
---
 src/radeon_dri2.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/radeon_dri2.c b/src/radeon_dri2.c
index d47b035..9a9918b 100644
--- a/src/radeon_dri2.c
+++ b/src/radeon_dri2.c
@@ -409,7 +409,14 @@ radeon_dri2_copy_region2(ScreenPtr pScreen,
     dst_drawable = &dst_private->pixmap->drawable;
 
     if (src_private->attachment == DRI2BufferFrontLeft) {
-        src_drawable = drawable;
+#ifdef USE_DRI2_PRIME
+	if (drawable->pScreen != pScreen) {
+	    src_drawable = DRI2UpdatePrime(drawable, src_buffer);
+	    if (!src_drawable)
+		return;
+	} else
+#endif
+	    src_drawable = drawable;
     }
     if (dst_private->attachment == DRI2BufferFrontLeft) {
 #ifdef USE_DRI2_PRIME
-- 
1.9.2