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libavcodec/ppc/mpegvideoencdsp.c : fix pix_norm1_altivec() and pix_sum_altivec() for POWER LE
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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@ -31,6 +31,34 @@
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#if HAVE_ALTIVEC
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#if HAVE_VSX
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static int pix_norm1_altivec(uint8_t *pix, int line_size)
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{
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int i, s = 0;
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const vector unsigned int zero =
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(const vector unsigned int) vec_splat_u32(0);
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vector unsigned int sv = (vector unsigned int) vec_splat_u32(0);
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vector signed int sum;
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for (i = 0; i < 16; i++) {
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/* Read the potentially unaligned pixels. */
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//vector unsigned char pixl = vec_ld(0, pix);
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//vector unsigned char pixr = vec_ld(15, pix);
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//vector unsigned char pixv = vec_perm(pixl, pixr, perm);
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vector unsigned char pixv = vec_vsx_ld(0, pix);
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/* Square the values, and add them to our sum. */
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sv = vec_msum(pixv, pixv, sv);
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pix += line_size;
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}
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/* Sum up the four partial sums, and put the result into s. */
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sum = vec_sums((vector signed int) sv, (vector signed int) zero);
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sum = vec_splat(sum, 3);
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vec_vsx_st(sum, 0, &s);
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return s;
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}
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#else
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static int pix_norm1_altivec(uint8_t *pix, int line_size)
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{
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int i, s = 0;
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@ -58,7 +86,37 @@ static int pix_norm1_altivec(uint8_t *pix, int line_size)
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return s;
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}
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#endif /* HAVE_VSX */
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#if HAVE_VSX
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static int pix_sum_altivec(uint8_t *pix, int line_size)
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{
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int i, s;
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const vector unsigned int zero =
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(const vector unsigned int) vec_splat_u32(0);
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vector unsigned int sad = (vector unsigned int) vec_splat_u32(0);
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vector signed int sumdiffs;
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for (i = 0; i < 16; i++) {
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/* Read the potentially unaligned 16 pixels into t1. */
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//vector unsigned char pixl = vec_ld(0, pix);
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//vector unsigned char pixr = vec_ld(15, pix);
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//vector unsigned char t1 = vec_perm(pixl, pixr, perm);
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vector unsigned char t1 = vec_vsx_ld(0, pix);
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/* Add each 4 pixel group together and put 4 results into sad. */
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sad = vec_sum4s(t1, sad);
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pix += line_size;
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}
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/* Sum up the four partial sums, and put the result into s. */
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sumdiffs = vec_sums((vector signed int) sad, (vector signed int) zero);
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sumdiffs = vec_splat(sumdiffs, 3);
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vec_vsx_st(sumdiffs, 0, &s);
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return s;
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}
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#else
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static int pix_sum_altivec(uint8_t *pix, int line_size)
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{
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int i, s;
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@ -88,6 +146,8 @@ static int pix_sum_altivec(uint8_t *pix, int line_size)
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return s;
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}
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#endif /* HAVE_VSX */
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#endif /* HAVE_ALTIVEC */
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av_cold void ff_mpegvideoencdsp_init_ppc(MpegvideoEncDSPContext *c,
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