util: Store more derived data in the the format description.

1 files changed, 18 insertions, 0 deletions

diff --git a/src/gallium/auxiliary/util/u_format.h b/src/gallium/auxiliary/util/u_format.h
index 2fbbb83d4b..7054a07b2d 100644
--- a/src/gallium/auxiliary/util/u_format.h
+++ b/src/gallium/auxiliary/util/u_format.h
@@ -138,8 +138,26 @@ struct util_format_description
    const char *name;
    struct util_format_block block;
    enum util_format_layout layout;
+
+   /**
+    * The number of channels.
+    */
+   unsigned nr_channels:3;
+
+   /**
+    * Whether all channels have the same number of whole bytes.
+    */
+   unsigned is_array:1;
+
+   /**
+    * Whether channels have mixed types (ignoring UTIL_FORMAT_TYPE_VOID).
+    */
+   unsigned is_mixed:1;
+
    struct util_format_channel_description channel[4];
+
    unsigned char swizzle[4];
+
    enum util_format_colorspace colorspace;
 };