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-rw-r--r--src/gallium/auxiliary/util/u_format.c21
-rw-r--r--src/gallium/auxiliary/util/u_format.h3
2 files changed, 24 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/u_format.c b/src/gallium/auxiliary/util/u_format.c
index e43a619313e..231e89017b4 100644
--- a/src/gallium/auxiliary/util/u_format.c
+++ b/src/gallium/auxiliary/util/u_format.c
@@ -169,6 +169,27 @@ util_format_is_snorm(enum pipe_format format)
desc->channel[i].normalized;
}
+/**
+ * Returns true if all non-void channels are normalized unsigned.
+ */
+boolean
+util_format_is_unorm(enum pipe_format format)
+{
+ const struct util_format_description *desc = util_format_description(format);
+ int i;
+
+ if (desc->is_mixed)
+ return FALSE;
+
+ i = util_format_get_first_non_void_channel(format);
+ if (i == -1)
+ return FALSE;
+
+ return desc->channel[i].type == UTIL_FORMAT_TYPE_UNSIGNED &&
+ !desc->channel[i].pure_integer &&
+ desc->channel[i].normalized;
+}
+
boolean
util_format_is_snorm8(enum pipe_format format)
{
diff --git a/src/gallium/auxiliary/util/u_format.h b/src/gallium/auxiliary/util/u_format.h
index 5bcfc1f1154..8dcc438a4a1 100644
--- a/src/gallium/auxiliary/util/u_format.h
+++ b/src/gallium/auxiliary/util/u_format.h
@@ -727,6 +727,9 @@ boolean
util_format_is_snorm(enum pipe_format format);
boolean
+util_format_is_unorm(enum pipe_format format);
+
+boolean
util_format_is_snorm8(enum pipe_format format);
/**