Module: ffmpeg Branch: master Commit: 381efba0ecedd41575f99ba9e9bd3826551079f6
Author: Mans Rullgard <[email protected]> Committer: Mans Rullgard <[email protected]> Date: Mon Feb 21 19:15:38 2011 +0000 ppc: fix vc1 inverse transform, unbreak build GCC 4.3 and later are more particular about signedness matching in vector operations. The operations under if(rangered) were missing assignments and thus had no effect. Signed-off-by: Mans Rullgard <[email protected]> --- libavcodec/ppc/vc1dsp_altivec.c | 34 +++++++++++++++++----------------- 1 files changed, 17 insertions(+), 17 deletions(-) diff --git a/libavcodec/ppc/vc1dsp_altivec.c b/libavcodec/ppc/vc1dsp_altivec.c index b5cc71c..05edb53 100644 --- a/libavcodec/ppc/vc1dsp_altivec.c +++ b/libavcodec/ppc/vc1dsp_altivec.c @@ -146,7 +146,7 @@ static void vc1_inv_trans_8x8_altivec(DCTELEM block[64], const vector signed int vec_1s = vec_splat_s32(1); const vector unsigned int vec_1 = vec_splat_u32(1); const vector unsigned short rangered_shift = vec_splat_u16(1); - const vector signed short signed_bias = vec_sl(vec_splat_u16(4), + const vector signed short signed_bias = vec_sl(vec_splat_s16(4), vec_splat_u16(4)); src0 = vec_ld( 0, block); @@ -219,23 +219,23 @@ static void vc1_inv_trans_8x8_altivec(DCTELEM block[64], if (rangered) { if (!sign) { - vec_sub(src0, signed_bias); - vec_sub(src1, signed_bias); - vec_sub(src2, signed_bias); - vec_sub(src3, signed_bias); - vec_sub(src4, signed_bias); - vec_sub(src5, signed_bias); - vec_sub(src6, signed_bias); - vec_sub(src7, signed_bias); + src0 = vec_sub(src0, signed_bias); + src1 = vec_sub(src1, signed_bias); + src2 = vec_sub(src2, signed_bias); + src3 = vec_sub(src3, signed_bias); + src4 = vec_sub(src4, signed_bias); + src5 = vec_sub(src5, signed_bias); + src6 = vec_sub(src6, signed_bias); + src7 = vec_sub(src7, signed_bias); } - vec_sl(src0, rangered_shift); - vec_sl(src1, rangered_shift); - vec_sl(src2, rangered_shift); - vec_sl(src3, rangered_shift); - vec_sl(src4, rangered_shift); - vec_sl(src5, rangered_shift); - vec_sl(src6, rangered_shift); - vec_sl(src7, rangered_shift); + src0 = vec_sl(src0, rangered_shift); + src1 = vec_sl(src1, rangered_shift); + src2 = vec_sl(src2, rangered_shift); + src3 = vec_sl(src3, rangered_shift); + src4 = vec_sl(src4, rangered_shift); + src5 = vec_sl(src5, rangered_shift); + src6 = vec_sl(src6, rangered_shift); + src7 = vec_sl(src7, rangered_shift); } vec_st(src0, 0, block); _______________________________________________ ffmpeg-commits mailing list [email protected] https://lists.mplayerhq.hu/mailman/listinfo/ffmpeg-commits
