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-rw-r--r--progs/gallium/unit/u_format_test.c27
1 files changed, 23 insertions, 4 deletions
diff --git a/progs/gallium/unit/u_format_test.c b/progs/gallium/unit/u_format_test.c
index bdbe443554e..af939347c3a 100644
--- a/progs/gallium/unit/u_format_test.c
+++ b/progs/gallium/unit/u_format_test.c
@@ -626,13 +626,27 @@ test_format_pack_4f(const struct util_format_test_case *test)
}
-static void
+static boolean
convert_4f_to_4ub(uint8_t *dst, const double *src)
{
unsigned i;
+ boolean accurate = TRUE;
- for (i = 0; i < 4; ++i)
- dst[i] = CLAMP(src[i], 0.0, 1.0) * 255.0;
+ for (i = 0; i < 4; ++i) {
+ if (src[i] < 0.0) {
+ accurate = FALSE;
+ dst[i] = 0;
+ }
+ else if (src[i] > 1.0) {
+ accurate = FALSE;
+ dst[i] = 255;
+ }
+ else {
+ dst[i] = src[i] * 255.0;
+ }
+ }
+
+ return accurate;
}
@@ -670,7 +684,12 @@ test_format_pack_4ub(const struct util_format_test_case *test)
unsigned i;
boolean success;
- convert_4f_to_4ub(unpacked, test->unpacked);
+ if (!convert_4f_to_4ub(unpacked, test->unpacked)) {
+ /*
+ * Skip test cases which cannot be represented by four unorm bytes.
+ */
+ return TRUE;
+ }
memset(packed, 0, sizeof packed);