vmx: fix splat_alpha for ppc64le
The permutation vector isn't correct for LE, so correct its values
in case we are in LE mode.
v2:
- replace _LITTLE_ENDIAN with WORDS_BIGENDIAN for consistency
- change #ifndef to #ifdef for readability
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Acked-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
diff --git a/pixman/pixman-vmx.c b/pixman/pixman-vmx.c
index c33631c..d0a4fc8 100644
--- a/pixman/pixman-vmx.c
+++ b/pixman/pixman-vmx.c
@@ -37,10 +37,17 @@
static force_inline vector unsigned int
splat_alpha (vector unsigned int pix)
{
+#ifdef WORDS_BIGENDIAN
return vec_perm (pix, pix,
(vector unsigned char)AVV (
0x00, 0x00, 0x00, 0x00, 0x04, 0x04, 0x04, 0x04,
0x08, 0x08, 0x08, 0x08, 0x0C, 0x0C, 0x0C, 0x0C));
+#else
+ return vec_perm (pix, pix,
+ (vector unsigned char)AVV (
+ 0x03, 0x03, 0x03, 0x03, 0x07, 0x07, 0x07, 0x07,
+ 0x0B, 0x0B, 0x0B, 0x0B, 0x0F, 0x0F, 0x0F, 0x0F));
+#endif
}
static force_inline vector unsigned int
