fate: Update DDS tests

tests/fate/image.mak

@@ -37,7 +37,7 @@ endef
 
 DDS_OPTS_pal     = -sws_flags +accurate_rnd+bitexact -pix_fmt rgba
 DDS_OPTS_pal-ati = -sws_flags +accurate_rnd+bitexact -pix_fmt rgba
-DDS_FMT = argb argb-aexp dx10-bc1 dx10-bc1a dx10-bc2 dx10-bc3 dx10-bc4 dx10-bc5 dxt1 dxt1a dxt1-normalmap dxt2 dxt3 dxt4 dxt5 dxt5-aexp dxt5-normalmap dxt5-normalmap-ati dxt5-rbxg dxt5-rgxb dxt5-rxbg dxt5-rxgb dxt5-xgbr dxt5-xgxr dxt5-xrbg dxt5-ycocg dxt5-ycocg-scaled pal pal-ati rgb16 rgb24 rgba rgtc1s rgtc1u rgtc2s rgtc2u rgtc2u-xy uyvy xbgr xrgb y ya ycocg yuyv
+DDS_FMT = alpha8 argb argb-aexp dx10-bc1 dx10-bc1a dx10-bc2 dx10-bc3 dx10-bc4 dx10-bc5 dxt1 dxt1a dxt1-normalmap dxt2 dxt3 dxt4 dxt5 dxt5-aexp dxt5-normalmap dxt5-normalmap-ati dxt5-rbxg dxt5-rgxb dxt5-rxbg dxt5-rxgb dxt5-xgbr dxt5-xgxr dxt5-xrbg dxt5-ycocg dxt5-ycocg-scaled pal pal-ati rgb1555 rgb16 rgb24 rgb555 rgba rgtc1s rgtc1u rgtc2s rgtc2u rgtc2u-xy uyvy xbgr xrgb y ya ycocg yuyv
 $(foreach FMT,$(DDS_FMT),$(eval $(call FATE_IMGSUITE_DDS,$(FMT))))
 
 FATE_DDS-$(call DEMDEC, IMAGE2, DDS) += $(FATE_DDS)

tests/ref/fate/dds-alpha8

+#tb 0: 1/25
+0,          0,          0,        1,    14884, 0xf81c47f5

tests/ref/fate/dds-rgb1555

+#tb 0: 1/25
+0,          0,          0,        1,    29768, 0xbdc099db

tests/ref/fate/dds-rgb555

+#tb 0: 1/25
+0,          0,          0,        1,    29768, 0x277d8628