gallium/util: add util_format_is_srgb() helper

diff --git a/src/gallium/auxiliary/util/u_format.h b/src/gallium/auxiliary/util/u_format.h
index 964f19c3a2e7934d33dcadfb49c298ecb58efb9f..98528ea595f8f19416b4e6a703c10e86912893af 100644 (file)
--- a/src/gallium/auxiliary/util/u_format.h
+++ b/src/gallium/auxiliary/util/u_format.h
@@ -410,6 +410,13 @@ util_format_is_s3tc(enum pipe_format format)
    return desc->layout == UTIL_FORMAT_LAYOUT_S3TC ? TRUE : FALSE;
 }
 
+static INLINE boolean 
+util_format_is_srgb(enum pipe_format format)
+{
+   const struct util_format_description *desc = util_format_description(format);
+   return desc->colorspace == UTIL_FORMAT_COLORSPACE_SRGB;
+}
+
 static INLINE boolean
 util_format_has_depth(const struct util_format_description *desc)
 {