nv50: fix mrt clear

diff --git a/src/gallium/drivers/nv50/nv50_clear.c b/src/gallium/drivers/nv50/nv50_clear.c
index eca65a88c15dc9a4bbbafc37b21d58177dbd7356..33427a15a566eed9c8360be1373d7c4f7dfb21ff 100644 (file)
--- a/src/gallium/drivers/nv50/nv50_clear.c
+++ b/src/gallium/drivers/nv50/nv50_clear.c
@@ -39,14 +39,12 @@ nv50_clear(struct pipe_context *pipe, unsigned buffers,
        if (!nv50_state_validate(nv50))
                return;
 
-       if (buffers & PIPE_CLEAR_COLOR) {
-               BEGIN_RING(chan, tesla, NV50TCL_CLEAR_COLOR(0), 4*fb->nr_cbufs);
-               for (i = 0; i < fb->nr_cbufs; i++) {
-                       OUT_RING  (chan, fui(rgba[0]));
-                       OUT_RING  (chan, fui(rgba[1]));
-                       OUT_RING  (chan, fui(rgba[2]));
-                       OUT_RING  (chan, fui(rgba[3]));
-               }
+       if (buffers & PIPE_CLEAR_COLOR && fb->nr_cbufs) {
+               BEGIN_RING(chan, tesla, NV50TCL_CLEAR_COLOR(0), 4);
+               OUT_RING  (chan, fui(rgba[0]));
+               OUT_RING  (chan, fui(rgba[1]));
+               OUT_RING  (chan, fui(rgba[2]));
+               OUT_RING  (chan, fui(rgba[3]));
                mode |= 0x3c;
        }
 
@@ -61,5 +59,10 @@ nv50_clear(struct pipe_context *pipe, unsigned buffers,
 
        BEGIN_RING(chan, tesla, NV50TCL_CLEAR_BUFFERS, 1);
        OUT_RING  (chan, mode);
+
+       for (i = 1; i < fb->nr_cbufs; i++) {
+               BEGIN_RING(chan, tesla, NV50TCL_CLEAR_BUFFERS, 1);
+               OUT_RING  (chan, (i << 6) | 0x3c);
+       }
 }