mesa: add comment for _mesa_get_srgb_format_linear()

diff --git a/src/mesa/main/formats.c b/src/mesa/main/formats.c
index 3ccc40b9a7957650050b8362cb474c7f5b14e392..b8fed182570a573ed03504457149064d6cbad8f7 100644 (file)
--- a/src/mesa/main/formats.c
+++ b/src/mesa/main/formats.c
@@ -1090,6 +1090,11 @@ _mesa_get_format_color_encoding(gl_format format)
    }
 }
 
+
+/**
+ * For an sRGB format, return the corresponding linear color space format.
+ * For non-sRGB formats, return the format as-is.
+ */
 gl_format
 _mesa_get_srgb_format_linear(gl_format format)
 {