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authorRong Yan <rongyan236@gmail.com>2014-10-10 08:27:16 +0000
committerMichael Niedermayer <michaelni@gmx.at>2014-10-10 13:32:02 +0200
commitc5ca76ad3b50e0cee1ebacb09e2c030e2c38f8dd (patch)
treef7ce3406a7aad4b9c7b23e1ff1abd4ec954c04b3
parent31dea05170e5c24328133261f689bd32bf950edd (diff)
downloadffmpeg-c5ca76ad3b50e0cee1ebacb09e2c030e2c38f8dd.tar.gz
libavcodec/ppc/mpegvideoencdsp.c : fix pix_norm1_altivec() and pix_sum_altivec() for POWER LE
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
-rw-r--r--libavcodec/ppc/mpegvideoencdsp.c60
1 files changed, 60 insertions, 0 deletions
diff --git a/libavcodec/ppc/mpegvideoencdsp.c b/libavcodec/ppc/mpegvideoencdsp.c
index 00ae2a6f30..e91ba5d25f 100644
--- a/libavcodec/ppc/mpegvideoencdsp.c
+++ b/libavcodec/ppc/mpegvideoencdsp.c
@@ -31,6 +31,34 @@
#if HAVE_ALTIVEC
+#if HAVE_VSX
+static int pix_norm1_altivec(uint8_t *pix, int line_size)
+{
+ int i, s = 0;
+ const vector unsigned int zero =
+ (const vector unsigned int) vec_splat_u32(0);
+ vector unsigned int sv = (vector unsigned int) vec_splat_u32(0);
+ vector signed int sum;
+
+ for (i = 0; i < 16; i++) {
+ /* Read the potentially unaligned pixels. */
+ //vector unsigned char pixl = vec_ld(0, pix);
+ //vector unsigned char pixr = vec_ld(15, pix);
+ //vector unsigned char pixv = vec_perm(pixl, pixr, perm);
+ vector unsigned char pixv = vec_vsx_ld(0, pix);
+
+ /* Square the values, and add them to our sum. */
+ sv = vec_msum(pixv, pixv, sv);
+
+ pix += line_size;
+ }
+ /* Sum up the four partial sums, and put the result into s. */
+ sum = vec_sums((vector signed int) sv, (vector signed int) zero);
+ sum = vec_splat(sum, 3);
+ vec_vsx_st(sum, 0, &s);
+ return s;
+}
+#else
static int pix_norm1_altivec(uint8_t *pix, int line_size)
{
int i, s = 0;
@@ -58,7 +86,37 @@ static int pix_norm1_altivec(uint8_t *pix, int line_size)
return s;
}
+#endif /* HAVE_VSX */
+
+#if HAVE_VSX
+static int pix_sum_altivec(uint8_t *pix, int line_size)
+{
+ int i, s;
+ const vector unsigned int zero =
+ (const vector unsigned int) vec_splat_u32(0);
+ vector unsigned int sad = (vector unsigned int) vec_splat_u32(0);
+ vector signed int sumdiffs;
+
+ for (i = 0; i < 16; i++) {
+ /* Read the potentially unaligned 16 pixels into t1. */
+ //vector unsigned char pixl = vec_ld(0, pix);
+ //vector unsigned char pixr = vec_ld(15, pix);
+ //vector unsigned char t1 = vec_perm(pixl, pixr, perm);
+ vector unsigned char t1 = vec_vsx_ld(0, pix);
+
+ /* Add each 4 pixel group together and put 4 results into sad. */
+ sad = vec_sum4s(t1, sad);
+
+ pix += line_size;
+ }
+ /* Sum up the four partial sums, and put the result into s. */
+ sumdiffs = vec_sums((vector signed int) sad, (vector signed int) zero);
+ sumdiffs = vec_splat(sumdiffs, 3);
+ vec_vsx_st(sumdiffs, 0, &s);
+ return s;
+}
+#else
static int pix_sum_altivec(uint8_t *pix, int line_size)
{
int i, s;
@@ -88,6 +146,8 @@ static int pix_sum_altivec(uint8_t *pix, int line_size)
return s;
}
+#endif /* HAVE_VSX */
+
#endif /* HAVE_ALTIVEC */
av_cold void ff_mpegvideoencdsp_init_ppc(MpegvideoEncDSPContext *c,