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-rw-r--r--src/mesa/drivers/dri/i965/intel_mipmap_tree.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
index 22c5ab8dbc..f504e067d5 100644
--- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
+++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
@@ -244,6 +244,26 @@ intel_miptree_create_layout(struct brw_context *brw,
_mesa_get_format_name(format),
first_level, last_level, depth0, mt);
+ if (target == GL_TEXTURE_1D_ARRAY) {
+ /* For a 1D Array texture the OpenGL API will treat the height0
+ * parameter as the number of array slices. For Intel hardware, we treat
+ * the 1D array as a 2D Array with a height of 1.
+ *
+ * So, when we first come through this path to create a 1D Array
+ * texture, height0 stores the number of slices, and depth0 is 1. In
+ * this case, we want to swap height0 and depth0.
+ *
+ * Since some miptrees will be created based on the base miptree, we may
+ * come through this path and see height0 as 1 and depth0 being the
+ * number of slices. In this case we don't need to do the swap.
+ */
+ assert(height0 == 1 || depth0 == 1);
+ if (height0 > 1) {
+ depth0 = height0;
+ height0 = 1;
+ }
+ }
+
mt->target = target;
mt->format = format;
mt->first_level = first_level;