iris: Report correct number of planes for planar images

We were only handling the modifiers case and not counting the number of
planes in actual planar images.

Fixes Piglit's ext_image_dma_buf_import-export.

Fixes: fc12fd05f56 ("iris: Implement pipe_screen::resource_get_param")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111509
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

diff --git a/src/gallium/drivers/iris/iris_resource.c b/src/gallium/drivers/iris/iris_resource.c
index 0cf4b91..989c112 100644 (file)
--- a/src/gallium/drivers/iris/iris_resource.c
+++ b/src/gallium/drivers/iris/iris_resource.c
@@ -1040,7 +1040,14 @@ iris_resource_get_param(struct pipe_screen *screen,
 
    switch (param) {
    case PIPE_RESOURCE_PARAM_NPLANES:
-      *value = mod_with_aux ? 2 : 1;
+      if (mod_with_aux) {
+         *value = 2;
+      } else {
+         unsigned count = 0;
+         for (struct pipe_resource *cur = resource; cur; cur = cur->next)
+            count++;
+         *value = count;
+      }
       return true;
    case PIPE_RESOURCE_PARAM_STRIDE:
       *value = wants_aux ? res->aux.surf.row_pitch_B : res->surf.row_pitch_B;