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-rw-r--r--src/gallium/drivers/nv30/nv30_surface.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/src/gallium/drivers/nv30/nv30_surface.c b/src/gallium/drivers/nv30/nv30_surface.c
index b20a3dd4c1..b22211ac86 100644
--- a/src/gallium/drivers/nv30/nv30_surface.c
+++ b/src/gallium/drivers/nv30/nv30_surface.c
@@ -42,8 +42,20 @@ nv30_surface_copy(struct pipe_context *pipe, unsigned do_flip,
struct nv30_context *nv30 = nv30_context(pipe);
struct nouveau_winsys *nvws = nv30->nvws;
- nvws->surface_copy(nvws, dest, destx, desty, src, srcx, srcy,
- width, height);
+ if (do_flip) {
+ /*XXX: This dodgyness will do for now for correctness. But,
+ * need to investigate whether the 2D engine is able to
+ * manage a flip (perhaps SIFM?), if not, use the 3D engine
+ */
+ desty += height;
+ while (height--) {
+ nvws->surface_copy(nvws, dest, destx, desty--, src,
+ srcx, srcy++, width, 1);
+ }
+ } else {
+ nvws->surface_copy(nvws, dest, destx, desty, src, srcx, srcy,
+ width, height);
+ }
}
static void