[Nouveau] [PATCH 13/19] nv50: don't forget to also clear additional layers

[Ilia Mirkin]

Fixes most of the tests/spec/gl-3.2/layered-rendering/* piglits.

Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
---
 src/gallium/drivers/nouveau/nv50/nv50_surface.c | 25 ++++++++++++++++---------
 1 file changed, 16 insertions(+), 9 deletions(-)

diff --git a/src/gallium/drivers/nouveau/nv50/nv50_surface.c b/src/gallium/drivers/nouveau/nv50/nv50_surface.c
index 358f57a..16a4369 100644
--- a/src/gallium/drivers/nouveau/nv50/nv50_surface.c
+++ b/src/gallium/drivers/nouveau/nv50/nv50_surface.c
@@ -395,7 +395,7 @@ nv50_clear(struct pipe_context *pipe, unsigned buffers,
    struct nv50_context *nv50 = nv50_context(pipe);
    struct nouveau_pushbuf *push = nv50->base.pushbuf;
    struct pipe_framebuffer_state *fb = &nv50->framebuffer;
-   unsigned i;
+   unsigned i, j;
    uint32_t mode = 0;
 
    /* don't need NEW_BLEND, COLOR_MASK doesn't affect CLEAR_BUFFERS */
@@ -408,9 +408,6 @@ nv50_clear(struct pipe_context *pipe, unsigned buffers,
       PUSH_DATAf(push, color->f[1]);
       PUSH_DATAf(push, color->f[2]);
       PUSH_DATAf(push, color->f[3]);
-      mode =
-         NV50_3D_CLEAR_BUFFERS_R | NV50_3D_CLEAR_BUFFERS_G |
-         NV50_3D_CLEAR_BUFFERS_B | NV50_3D_CLEAR_BUFFERS_A;
    }
 
    if (buffers & PIPE_CLEAR_DEPTH) {
@@ -425,12 +422,22 @@ nv50_clear(struct pipe_context *pipe, unsigned buffers,
       mode |= NV50_3D_CLEAR_BUFFERS_S;
    }
 
-   BEGIN_NV04(push, NV50_3D(CLEAR_BUFFERS), 1);
-   PUSH_DATA (push, mode);
+   if ((buffers & PIPE_CLEAR_DEPTH) || (buffers & PIPE_CLEAR_STENCIL)) {
+      for (j = fb->zsbuf->u.tex.first_layer; j <= fb->zsbuf->u.tex.last_layer; j++) {
+         BEGIN_NV04(push, NV50_3D(CLEAR_BUFFERS), 1);
+         PUSH_DATA(push, mode | (j << NV50_3D_CLEAR_BUFFERS_LAYER__SHIFT));
+      }
+   }
 
-   for (i = 1; i < fb->nr_cbufs; i++) {
-      BEGIN_NV04(push, NV50_3D(CLEAR_BUFFERS), 1);
-      PUSH_DATA (push, (i << 6) | 0x3c);
+   if (buffers & PIPE_CLEAR_COLOR) {
+      for (i = 0; i < fb->nr_cbufs; i++) {
+         struct pipe_surface *sf = fb->cbufs[i];
+         for (j = sf->u.tex.first_layer; j <= sf->u.tex.last_layer; j++) {
+            BEGIN_NV04(push, NV50_3D(CLEAR_BUFFERS), 1);
+            PUSH_DATA (push, (i << 6) | 0x3c |
+                       (j << NV50_3D_CLEAR_BUFFERS_LAYER__SHIFT));
+         }
+      }
    }
 }
 
-- 
1.8.3.2