Move TRANSPOSE8 macro to dsputil_altivec.h.

(was duplicated in libavcodec/ppc/vc1dsp_altivec.c
nd libavcodec/ppc/mpegvideo_altivec.c, and will be
used in upcoming routines for h264_altivec.c)

Originally committed as revision 6621 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 34 insertions, 0 deletions

diff --git a/libavcodec/ppc/dsputil_altivec.h b/libavcodec/ppc/dsputil_altivec.h
index f9572d5202..560d778bbd 100644
--- a/libavcodec/ppc/dsputil_altivec.h
+++ b/libavcodec/ppc/dsputil_altivec.h
@@ -67,6 +67,40 @@ void avg_pixels16_altivec(uint8_t *block, const uint8_t *pixels, int line_size,
 #define vcii(a,b,c,d) (const vector float){FLOAT_ ## a, FLOAT_ ## b, FLOAT_ ## c, FLOAT_ ## d}
 #endif
 
+// Transpose 8x8 matrix of 16-bit elements (in-place)
+#define TRANSPOSE8(a,b,c,d,e,f,g,h) \
+do { \
+    vector signed short A1, B1, C1, D1, E1, F1, G1, H1; \
+    vector signed short A2, B2, C2, D2, E2, F2, G2, H2; \
+ \
+    A1 = vec_mergeh (a, e); \
+    B1 = vec_mergel (a, e); \
+    C1 = vec_mergeh (b, f); \
+    D1 = vec_mergel (b, f); \
+    E1 = vec_mergeh (c, g); \
+    F1 = vec_mergel (c, g); \
+    G1 = vec_mergeh (d, h); \
+    H1 = vec_mergel (d, h); \
+ \
+    A2 = vec_mergeh (A1, E1); \
+    B2 = vec_mergel (A1, E1); \
+    C2 = vec_mergeh (B1, F1); \
+    D2 = vec_mergel (B1, F1); \
+    E2 = vec_mergeh (C1, G1); \
+    F2 = vec_mergel (C1, G1); \
+    G2 = vec_mergeh (D1, H1); \
+    H2 = vec_mergel (D1, H1); \
+ \
+    a = vec_mergeh (A2, E2); \
+    b = vec_mergel (A2, E2); \
+    c = vec_mergeh (B2, F2); \
+    d = vec_mergel (B2, F2); \
+    e = vec_mergeh (C2, G2); \
+    f = vec_mergel (C2, G2); \
+    g = vec_mergeh (D2, H2); \
+    h = vec_mergel (D2, H2); \
+} while (0)
+
 #endif /* HAVE_ALTIVEC */
 
 #endif /* _DSPUTIL_ALTIVEC_ */