From 18726a4975ab2ddf85eaa6eb1602dcbe599217f7 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Wed, 6 Jun 2012 10:58:49 +0100
Subject: [PATCH] sna: Perform CopyArea directly onto a CPU bo if available

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 src/sna/sna_accel.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/src/sna/sna_accel.c b/src/sna/sna_accel.c
index e2a2c127..2ead80ad 100644
--- a/src/sna/sna_accel.c
+++ b/src/sna/sna_accel.c
@@ -3886,6 +3886,33 @@ sna_copy_boxes(DrawablePtr src, DrawablePtr dst, GCPtr gc,
 			}
 		}
 
+		goto out;
+	} else if (dst_priv->cpu_bo &&
+		   src_priv && DAMAGE_IS_ALL(src_priv->gpu_damage) && !src_priv->clear) {
+		if (!sna->render.copy_boxes(sna, alu,
+					    src_pixmap, src_priv->gpu_bo, src_dx, src_dy,
+					    dst_pixmap, dst_priv->cpu_bo, dst_dx, dst_dy,
+					    box, n)) {
+			DBG(("%s: fallback - accelerated copy boxes failed\n",
+			     __FUNCTION__));
+			goto fallback;
+		}
+
+		if (replaces) {
+			sna_damage_all(&dst_priv->cpu_damage,
+				       dst_pixmap->drawable.width,
+				       dst_pixmap->drawable.height);
+			dst_priv->undamaged = false;
+		} else {
+			RegionTranslate(&region, dst_dx, dst_dy);
+			assert_pixmap_contains_box(dst_pixmap,
+						   RegionExtents(&region));
+			sna_damage_add(&dst_priv->cpu_damage, &region);
+			RegionTranslate(&region, -dst_dx, -dst_dy);
+		}
+		if (dst_priv->flush)
+			list_move(&dst_priv->list, &sna->dirty_pixmaps);
+
 		goto out;
 	}