util: linearized sRGB values don't fit into 8bits

Fixes glean texture_srgb test.

diff --git a/src/gallium/auxiliary/util/u_format.c b/src/gallium/auxiliary/util/u_format.c
index a4ee91b0cf9d3c5b57db87c982a9ae6c7ed3e3d5..4896faa12bf95cce66dd4b21229c5733e9509995 100644 (file)
--- a/src/gallium/auxiliary/util/u_format.c
+++ b/src/gallium/auxiliary/util/u_format.c
@@ -173,6 +173,14 @@ util_format_fits_8unorm(const struct util_format_description *format_desc)
 {
    unsigned chan;
 
+   /*
+    * After linearized sRGB values require more than 8bits.
+    */
+
+   if (format_desc->colorspace == UTIL_FORMAT_COLORSPACE_SRGB) {
+      return FALSE;
+   }
+
    switch (format_desc->layout) {
 
    case UTIL_FORMAT_LAYOUT_S3TC: