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author | Ronald S. Bultje <rsbultje@gmail.com> | 2011-05-04 07:35:30 -0400 |
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committer | Ronald S. Bultje <rsbultje@gmail.com> | 2011-05-04 07:40:01 -0400 |
commit | 18b6a69ce9fcbd12476cfbe8ca9cd7e148dc21c5 (patch) | |
tree | 4b1c1404f140ca0dedcb42d8c1d221f9f11ff41d /libavcodec/ppc | |
parent | 1a5e4fd8c5b99478b4e08a69261930bb12aa948b (diff) | |
download | ffmpeg-18b6a69ce9fcbd12476cfbe8ca9cd7e148dc21c5.tar.gz |
Revert "VC1: merge idct8x8, coeff adjustments and put_pixels."
This reverts commit f8bed30d8b176fa030f6737765338bb4a2bcabc9. The reason
for this is that the overlap filter, which runs after IDCT, should run
on unclamped values, and thus IDCT and put_pixels() cannot be merged if
we want to attempt to be bitexact.
Diffstat (limited to 'libavcodec/ppc')
-rw-r--r-- | libavcodec/ppc/vc1dsp_altivec.c | 63 |
1 files changed, 2 insertions, 61 deletions
diff --git a/libavcodec/ppc/vc1dsp_altivec.c b/libavcodec/ppc/vc1dsp_altivec.c index c52b5a9aff..307e0e9f6b 100644 --- a/libavcodec/ppc/vc1dsp_altivec.c +++ b/libavcodec/ppc/vc1dsp_altivec.c @@ -130,8 +130,7 @@ do { \ /** Do inverse transform on 8x8 block */ -static void vc1_inv_trans_8x8_altivec(DCTELEM block[64], - int sign, int rangered) +static void vc1_inv_trans_8x8_altivec(DCTELEM block[64]) { vector signed short src0, src1, src2, src3, src4, src5, src6, src7; vector signed int s0, s1, s2, s3, s4, s5, s6, s7; @@ -145,9 +144,6 @@ static void vc1_inv_trans_8x8_altivec(DCTELEM block[64], const vector unsigned int vec_2 = vec_splat_u32(2); 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_s16(4), - vec_splat_u16(4)); src0 = vec_ld( 0, block); src1 = vec_ld( 16, block); @@ -217,27 +213,6 @@ static void vc1_inv_trans_8x8_altivec(DCTELEM block[64], src6 = vec_pack(sE, s6); src7 = vec_pack(sF, s7); - if (rangered) { - if (!sign) { - 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); - } - 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); vec_st(src1, 16, block); vec_st(src2, 32, block); @@ -248,36 +223,6 @@ static void vc1_inv_trans_8x8_altivec(DCTELEM block[64], vec_st(src7,112, block); } -static void vc1_inv_trans_8x8_add_altivec(uint8_t *dest, int stride, DCTELEM *b) -{ - vc1_inv_trans_8x8_altivec(b, 0, 0); - ff_add_pixels_clamped_c(b, dest, stride); -} - -static void vc1_inv_trans_8x8_put_signed_altivec(uint8_t *dest, int stride, DCTELEM *b) -{ - vc1_inv_trans_8x8_altivec(b, 1, 0); - ff_put_signed_pixels_clamped_c(b, dest, stride); -} - -static void vc1_inv_trans_8x8_put_signed_rangered_altivec(uint8_t *dest, int stride, DCTELEM *b) -{ - vc1_inv_trans_8x8_altivec(b, 1, 1); - ff_put_signed_pixels_clamped_c(b, dest, stride); -} - -static void vc1_inv_trans_8x8_put_altivec(uint8_t *dest, int stride, DCTELEM *b) -{ - vc1_inv_trans_8x8_altivec(b, 0, 0); - ff_put_pixels_clamped_c(b, dest, stride); -} - -static void vc1_inv_trans_8x8_put_rangered_altivec(uint8_t *dest, int stride, DCTELEM *b) -{ - vc1_inv_trans_8x8_altivec(b, 0, 1); - ff_put_pixels_clamped_c(b, dest, stride); -} - /** Do inverse transform on 8x4 part of block */ static void vc1_inv_trans_8x4_altivec(uint8_t *dest, int stride, DCTELEM *block) @@ -396,11 +341,7 @@ void ff_vc1dsp_init_altivec(VC1DSPContext* dsp) if (!(av_get_cpu_flags() & AV_CPU_FLAG_ALTIVEC)) return; - dsp->vc1_inv_trans_8x8_add = vc1_inv_trans_8x8_add_altivec; - dsp->vc1_inv_trans_8x8_put_signed[0] = vc1_inv_trans_8x8_put_signed_altivec; - dsp->vc1_inv_trans_8x8_put_signed[1] = vc1_inv_trans_8x8_put_signed_rangered_altivec; - dsp->vc1_inv_trans_8x8_put[0] = vc1_inv_trans_8x8_put_altivec; - dsp->vc1_inv_trans_8x8_put[1] = vc1_inv_trans_8x8_put_rangered_altivec; + dsp->vc1_inv_trans_8x8 = vc1_inv_trans_8x8_altivec; dsp->vc1_inv_trans_8x4 = vc1_inv_trans_8x4_altivec; dsp->put_no_rnd_vc1_chroma_pixels_tab[0] = put_no_rnd_vc1_chroma_mc8_altivec; dsp->avg_no_rnd_vc1_chroma_pixels_tab[0] = avg_no_rnd_vc1_chroma_mc8_altivec; |