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-rw-r--r--pixman/pixman-vmx.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/pixman/pixman-vmx.c b/pixman/pixman-vmx.c
index d0a4fc8..e33d9d9 100644
--- a/pixman/pixman-vmx.c
+++ b/pixman/pixman-vmx.c
@@ -136,6 +136,7 @@ over (vector unsigned int src,
over (pix_multiply (src, mask), \
pix_multiply (srca, mask), dest)
+#ifdef WORDS_BIGENDIAN
#define COMPUTE_SHIFT_MASK(source) \
source ## _mask = vec_lvsl (0, source);
@@ -169,6 +170,30 @@ over (vector unsigned int src,
v ## mask = (typeof(v ## mask)) \
vec_perm (tmp1, tmp2, mask ## _mask);
+#else
+
+/* Now the COMPUTE_SHIFT_{MASK, MASKS, MASKC} below are just no-op.
+ * They are defined that way because little endian altivec can do unaligned
+ * reads natively and have no need for constructing the permutation pattern
+ * variables.
+ */
+#define COMPUTE_SHIFT_MASK(source)
+
+#define COMPUTE_SHIFT_MASKS(dest, source)
+
+#define COMPUTE_SHIFT_MASKC(dest, source, mask)
+
+# define LOAD_VECTORS(dest, source) \
+ v ## source = *((typeof(v ## source)*)source); \
+ v ## dest = *((typeof(v ## dest)*)dest);
+
+# define LOAD_VECTORSC(dest, source, mask) \
+ v ## source = *((typeof(v ## source)*)source); \
+ v ## dest = *((typeof(v ## dest)*)dest); \
+ v ## mask = *((typeof(v ## mask)*)mask);
+
+#endif /* WORDS_BIGENDIAN */
+
#define LOAD_VECTORSM(dest, source, mask) \
LOAD_VECTORSC (dest, source, mask) \
v ## source = pix_multiply (v ## source, \