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Diffstat (limited to 'libpostproc/postprocess_altivec_template.c')
| -rw-r--r-- | libpostproc/postprocess_altivec_template.c | 1210 |
1 files changed, 1210 insertions, 0 deletions
diff --git a/libpostproc/postprocess_altivec_template.c b/libpostproc/postprocess_altivec_template.c new file mode 100644 index 0000000000..3a37562452 --- /dev/null +++ b/libpostproc/postprocess_altivec_template.c @@ -0,0 +1,1210 @@ +/* + * AltiVec optimizations (C) 2004 Romain Dolbeau <romain@dolbeau.org> + * + * based on code by Copyright (C) 2001-2003 Michael Niedermayer (michaelni@gmx.at) + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "libavutil/avutil.h" + +#define ALTIVEC_TRANSPOSE_8x8_SHORT(src_a,src_b,src_c,src_d,src_e,src_f,src_g,src_h) \ + do { \ + __typeof__(src_a) tempA1, tempB1, tempC1, tempD1; \ + __typeof__(src_a) tempE1, tempF1, tempG1, tempH1; \ + __typeof__(src_a) tempA2, tempB2, tempC2, tempD2; \ + __typeof__(src_a) tempE2, tempF2, tempG2, tempH2; \ + tempA1 = vec_mergeh (src_a, src_e); \ + tempB1 = vec_mergel (src_a, src_e); \ + tempC1 = vec_mergeh (src_b, src_f); \ + tempD1 = vec_mergel (src_b, src_f); \ + tempE1 = vec_mergeh (src_c, src_g); \ + tempF1 = vec_mergel (src_c, src_g); \ + tempG1 = vec_mergeh (src_d, src_h); \ + tempH1 = vec_mergel (src_d, src_h); \ + tempA2 = vec_mergeh (tempA1, tempE1); \ + tempB2 = vec_mergel (tempA1, tempE1); \ + tempC2 = vec_mergeh (tempB1, tempF1); \ + tempD2 = vec_mergel (tempB1, tempF1); \ + tempE2 = vec_mergeh (tempC1, tempG1); \ + tempF2 = vec_mergel (tempC1, tempG1); \ + tempG2 = vec_mergeh (tempD1, tempH1); \ + tempH2 = vec_mergel (tempD1, tempH1); \ + src_a = vec_mergeh (tempA2, tempE2); \ + src_b = vec_mergel (tempA2, tempE2); \ + src_c = vec_mergeh (tempB2, tempF2); \ + src_d = vec_mergel (tempB2, tempF2); \ + src_e = vec_mergeh (tempC2, tempG2); \ + src_f = vec_mergel (tempC2, tempG2); \ + src_g = vec_mergeh (tempD2, tempH2); \ + src_h = vec_mergel (tempD2, tempH2); \ + } while (0) + + +static inline int vertClassify_altivec(uint8_t src[], int stride, PPContext *c) { + /* + this code makes no assumption on src or stride. + One could remove the recomputation of the perm + vector by assuming (stride % 16) == 0, unfortunately + this is not always true. + */ + short data_0 = ((c->nonBQP*c->ppMode.baseDcDiff)>>8) + 1; + DECLARE_ALIGNED(16, short, data)[8] = + { + data_0, + data_0 * 2 + 1, + c->QP * 2, + c->QP * 4 + }; + int numEq; + uint8_t *src2 = src; + vector signed short v_dcOffset; + vector signed short v2QP; + vector unsigned short v4QP; + vector unsigned short v_dcThreshold; + const int properStride = (stride % 16); + const int srcAlign = ((unsigned long)src2 % 16); + const int two_vectors = ((srcAlign > 8) || properStride) ? 1 : 0; + const vector signed int zero = vec_splat_s32(0); + const vector signed short mask = vec_splat_s16(1); + vector signed int v_numEq = vec_splat_s32(0); + vector signed short v_data = vec_ld(0, data); + vector signed short v_srcAss0, v_srcAss1, v_srcAss2, v_srcAss3, + v_srcAss4, v_srcAss5, v_srcAss6, v_srcAss7; +//FIXME avoid this mess if possible + register int j0 = 0, + j1 = stride, + j2 = 2 * stride, + j3 = 3 * stride, + j4 = 4 * stride, + j5 = 5 * stride, + j6 = 6 * stride, + j7 = 7 * stride; + vector unsigned char v_srcA0, v_srcA1, v_srcA2, v_srcA3, + v_srcA4, v_srcA5, v_srcA6, v_srcA7; + + v_dcOffset = vec_splat(v_data, 0); + v_dcThreshold = (vector unsigned short)vec_splat(v_data, 1); + v2QP = vec_splat(v_data, 2); + v4QP = (vector unsigned short)vec_splat(v_data, 3); + + src2 += stride * 4; + +#define LOAD_LINE(i) \ + { \ + vector unsigned char perm##i = vec_lvsl(j##i, src2); \ + vector unsigned char v_srcA2##i; \ + vector unsigned char v_srcA1##i = vec_ld(j##i, src2); \ + if (two_vectors) \ + v_srcA2##i = vec_ld(j##i + 16, src2); \ + v_srcA##i = \ + vec_perm(v_srcA1##i, v_srcA2##i, perm##i); \ + v_srcAss##i = \ + (vector signed short)vec_mergeh((vector signed char)zero, \ + (vector signed char)v_srcA##i); } + +#define LOAD_LINE_ALIGNED(i) \ + v_srcA##i = vec_ld(j##i, src2); \ + v_srcAss##i = \ + (vector signed short)vec_mergeh((vector signed char)zero, \ + (vector signed char)v_srcA##i) + + /* Special-casing the aligned case is worthwhile, as all calls from + * the (transposed) horizontable deblocks will be aligned, in addition + * to the naturally aligned vertical deblocks. */ + if (properStride && srcAlign) { + LOAD_LINE_ALIGNED(0); + LOAD_LINE_ALIGNED(1); + LOAD_LINE_ALIGNED(2); + LOAD_LINE_ALIGNED(3); + LOAD_LINE_ALIGNED(4); + LOAD_LINE_ALIGNED(5); + LOAD_LINE_ALIGNED(6); + LOAD_LINE_ALIGNED(7); + } else { + LOAD_LINE(0); + LOAD_LINE(1); + LOAD_LINE(2); + LOAD_LINE(3); + LOAD_LINE(4); + LOAD_LINE(5); + LOAD_LINE(6); + LOAD_LINE(7); + } +#undef LOAD_LINE +#undef LOAD_LINE_ALIGNED + +#define ITER(i, j) \ + const vector signed short v_diff##i = \ + vec_sub(v_srcAss##i, v_srcAss##j); \ + const vector signed short v_sum##i = \ + vec_add(v_diff##i, v_dcOffset); \ + const vector signed short v_comp##i = \ + (vector signed short)vec_cmplt((vector unsigned short)v_sum##i, \ + v_dcThreshold); \ + const vector signed short v_part##i = vec_and(mask, v_comp##i); + + { + ITER(0, 1) + ITER(1, 2) + ITER(2, 3) + ITER(3, 4) + ITER(4, 5) + ITER(5, 6) + ITER(6, 7) + + v_numEq = vec_sum4s(v_part0, v_numEq); + v_numEq = vec_sum4s(v_part1, v_numEq); + v_numEq = vec_sum4s(v_part2, v_numEq); + v_numEq = vec_sum4s(v_part3, v_numEq); + v_numEq = vec_sum4s(v_part4, v_numEq); + v_numEq = vec_sum4s(v_part5, v_numEq); + v_numEq = vec_sum4s(v_part6, v_numEq); + } + +#undef ITER + + v_numEq = vec_sums(v_numEq, zero); + + v_numEq = vec_splat(v_numEq, 3); + vec_ste(v_numEq, 0, &numEq); + + if (numEq > c->ppMode.flatnessThreshold){ + const vector unsigned char mmoP1 = (const vector unsigned char) + {0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, + 0x00, 0x01, 0x12, 0x13, 0x08, 0x09, 0x1A, 0x1B}; + const vector unsigned char mmoP2 = (const vector unsigned char) + {0x04, 0x05, 0x16, 0x17, 0x0C, 0x0D, 0x1E, 0x1F, + 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f}; + const vector unsigned char mmoP = (const vector unsigned char) + vec_lvsl(8, (unsigned char*)0); + + vector signed short mmoL1 = vec_perm(v_srcAss0, v_srcAss2, mmoP1); + vector signed short mmoL2 = vec_perm(v_srcAss4, v_srcAss6, mmoP2); + vector signed short mmoL = vec_perm(mmoL1, mmoL2, mmoP); + vector signed short mmoR1 = vec_perm(v_srcAss5, v_srcAss7, mmoP1); + vector signed short mmoR2 = vec_perm(v_srcAss1, v_srcAss3, mmoP2); + vector signed short mmoR = vec_perm(mmoR1, mmoR2, mmoP); + vector signed short mmoDiff = vec_sub(mmoL, mmoR); + vector unsigned short mmoSum = (vector unsigned short)vec_add(mmoDiff, v2QP); + + if (vec_any_gt(mmoSum, v4QP)) + return 0; + else + return 1; + } + else return 2; +} + +static inline void doVertLowPass_altivec(uint8_t *src, int stride, PPContext *c) { + /* + this code makes no assumption on src or stride. + One could remove the recomputation of the perm + vector by assuming (stride % 16) == 0, unfortunately + this is not always true. Quite a lot of load/stores + can be removed by assuming proper alignment of + src & stride :-( + */ + uint8_t *src2 = src; + const vector signed int zero = vec_splat_s32(0); + const int properStride = (stride % 16); + const int srcAlign = ((unsigned long)src2 % 16); + DECLARE_ALIGNED(16, short, qp)[8] = {c->QP}; + vector signed short vqp = vec_ld(0, qp); + vector signed short vb0, vb1, vb2, vb3, vb4, vb5, vb6, vb7, vb8, vb9; + vector unsigned char vbA0, av_uninit(vbA1), av_uninit(vbA2), av_uninit(vbA3), av_uninit(vbA4), av_uninit(vbA5), av_uninit(vbA6), av_uninit(vbA7), av_uninit(vbA8), vbA9; + vector unsigned char vbB0, av_uninit(vbB1), av_uninit(vbB2), av_uninit(vbB3), av_uninit(vbB4), av_uninit(vbB5), av_uninit(vbB6), av_uninit(vbB7), av_uninit(vbB8), vbB9; + vector unsigned char vbT0, vbT1, vbT2, vbT3, vbT4, vbT5, vbT6, vbT7, vbT8, vbT9; + vector unsigned char perml0, perml1, perml2, perml3, perml4, + perml5, perml6, perml7, perml8, perml9; + register int j0 = 0, + j1 = stride, + j2 = 2 * stride, + j3 = 3 * stride, + j4 = 4 * stride, + j5 = 5 * stride, + j6 = 6 * stride, + j7 = 7 * stride, + j8 = 8 * stride, + j9 = 9 * stride; + + vqp = vec_splat(vqp, 0); + + src2 += stride*3; + +#define LOAD_LINE(i) \ + perml##i = vec_lvsl(i * stride, src2); \ + vbA##i = vec_ld(i * stride, src2); \ + vbB##i = vec_ld(i * stride + 16, src2); \ + vbT##i = vec_perm(vbA##i, vbB##i, perml##i); \ + vb##i = \ + (vector signed short)vec_mergeh((vector unsigned char)zero, \ + (vector unsigned char)vbT##i) + +#define LOAD_LINE_ALIGNED(i) \ + vbT##i = vec_ld(j##i, src2); \ + vb##i = \ + (vector signed short)vec_mergeh((vector signed char)zero, \ + (vector signed char)vbT##i) + + /* Special-casing the aligned case is worthwhile, as all calls from + * the (transposed) horizontable deblocks will be aligned, in addition + * to the naturally aligned vertical deblocks. */ + if (properStride && srcAlign) { + LOAD_LINE_ALIGNED(0); + LOAD_LINE_ALIGNED(1); + LOAD_LINE_ALIGNED(2); + LOAD_LINE_ALIGNED(3); + LOAD_LINE_ALIGNED(4); + LOAD_LINE_ALIGNED(5); + LOAD_LINE_ALIGNED(6); + LOAD_LINE_ALIGNED(7); + LOAD_LINE_ALIGNED(8); + LOAD_LINE_ALIGNED(9); + } else { + LOAD_LINE(0); + LOAD_LINE(1); + LOAD_LINE(2); + LOAD_LINE(3); + LOAD_LINE(4); + LOAD_LINE(5); + LOAD_LINE(6); + LOAD_LINE(7); + LOAD_LINE(8); + LOAD_LINE(9); + } +#undef LOAD_LINE +#undef LOAD_LINE_ALIGNED + { + const vector unsigned short v_2 = vec_splat_u16(2); + const vector unsigned short v_4 = vec_splat_u16(4); + + const vector signed short v_diff01 = vec_sub(vb0, vb1); + const vector unsigned short v_cmp01 = + (const vector unsigned short) vec_cmplt(vec_abs(v_diff01), vqp); + const vector signed short v_first = vec_sel(vb1, vb0, v_cmp01); + const vector signed short v_diff89 = vec_sub(vb8, vb9); + const vector unsigned short v_cmp89 = + (const vector unsigned short) vec_cmplt(vec_abs(v_diff89), vqp); + const vector signed short v_last = vec_sel(vb8, vb9, v_cmp89); + + const vector signed short temp01 = vec_mladd(v_first, (vector signed short)v_4, vb1); + const vector signed short temp02 = vec_add(vb2, vb3); + const vector signed short temp03 = vec_add(temp01, (vector signed short)v_4); + const vector signed short v_sumsB0 = vec_add(temp02, temp03); + + const vector signed short temp11 = vec_sub(v_sumsB0, v_first); + const vector signed short v_sumsB1 = vec_add(temp11, vb4); + + const vector signed short temp21 = vec_sub(v_sumsB1, v_first); + const vector signed short v_sumsB2 = vec_add(temp21, vb5); + + const vector signed short temp31 = vec_sub(v_sumsB2, v_first); + const vector signed short v_sumsB3 = vec_add(temp31, vb6); + + const vector signed short temp41 = vec_sub(v_sumsB3, v_first); + const vector signed short v_sumsB4 = vec_add(temp41, vb7); + + const vector signed short temp51 = vec_sub(v_sumsB4, vb1); + const vector signed short v_sumsB5 = vec_add(temp51, vb8); + + const vector signed short temp61 = vec_sub(v_sumsB5, vb2); + const vector signed short v_sumsB6 = vec_add(temp61, v_last); + + const vector signed short temp71 = vec_sub(v_sumsB6, vb3); + const vector signed short v_sumsB7 = vec_add(temp71, v_last); + + const vector signed short temp81 = vec_sub(v_sumsB7, vb4); + const vector signed short v_sumsB8 = vec_add(temp81, v_last); + + const vector signed short temp91 = vec_sub(v_sumsB8, vb5); + const vector signed short v_sumsB9 = vec_add(temp91, v_last); + + #define COMPUTE_VR(i, j, k) \ + const vector signed short temps1##i = \ + vec_add(v_sumsB##i, v_sumsB##k); \ + const vector signed short temps2##i = \ + vec_mladd(vb##j, (vector signed short)v_2, temps1##i); \ + const vector signed short vr##j = vec_sra(temps2##i, v_4) + + COMPUTE_VR(0, 1, 2); + COMPUTE_VR(1, 2, 3); + COMPUTE_VR(2, 3, 4); + COMPUTE_VR(3, 4, 5); + COMPUTE_VR(4, 5, 6); + COMPUTE_VR(5, 6, 7); + COMPUTE_VR(6, 7, 8); + COMPUTE_VR(7, 8, 9); + + const vector signed char neg1 = vec_splat_s8(-1); + const vector unsigned char permHH = (const vector unsigned char){0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F}; + +#define PACK_AND_STORE(i) \ +{ const vector unsigned char perms##i = \ + vec_lvsr(i * stride, src2); \ + const vector unsigned char vf##i = \ + vec_packsu(vr##i, (vector signed short)zero); \ + const vector unsigned char vg##i = \ + vec_perm(vf##i, vbT##i, permHH); \ + const vector unsigned char mask##i = \ + vec_perm((vector unsigned char)zero, (vector unsigned char)neg1, perms##i); \ + const vector unsigned char vg2##i = \ + vec_perm(vg##i, vg##i, perms##i); \ + const vector unsigned char svA##i = \ + vec_sel(vbA##i, vg2##i, mask##i); \ + const vector unsigned char svB##i = \ + vec_sel(vg2##i, vbB##i, mask##i); \ + vec_st(svA##i, i * stride, src2); \ + vec_st(svB##i, i * stride + 16, src2);} + +#define PACK_AND_STORE_ALIGNED(i) \ +{ const vector unsigned char vf##i = \ + vec_packsu(vr##i, (vector signed short)zero); \ + const vector unsigned char vg##i = \ + vec_perm(vf##i, vbT##i, permHH); \ + vec_st(vg##i, i * stride, src2);} + + /* Special-casing the aligned case is worthwhile, as all calls from + * the (transposed) horizontable deblocks will be aligned, in addition + * to the naturally aligned vertical deblocks. */ + if (properStride && srcAlign) { + PACK_AND_STORE_ALIGNED(1) + PACK_AND_STORE_ALIGNED(2) + PACK_AND_STORE_ALIGNED(3) + PACK_AND_STORE_ALIGNED(4) + PACK_AND_STORE_ALIGNED(5) + PACK_AND_STORE_ALIGNED(6) + PACK_AND_STORE_ALIGNED(7) + PACK_AND_STORE_ALIGNED(8) + } else { + PACK_AND_STORE(1) + PACK_AND_STORE(2) + PACK_AND_STORE(3) + PACK_AND_STORE(4) + PACK_AND_STORE(5) + PACK_AND_STORE(6) + PACK_AND_STORE(7) + PACK_AND_STORE(8) + } + #undef PACK_AND_STORE + #undef PACK_AND_STORE_ALIGNED + } +} + + + +static inline void doVertDefFilter_altivec(uint8_t src[], int stride, PPContext *c) { + /* + this code makes no assumption on src or stride. + One could remove the recomputation of the perm + vector by assuming (stride % 16) == 0, unfortunately + this is not always true. Quite a lot of load/stores + can be removed by assuming proper alignment of + src & stride :-( + */ + uint8_t *src2 = src + stride*3; + const vector signed int zero = vec_splat_s32(0); + DECLARE_ALIGNED(16, short, qp)[8] = {8*c->QP}; + vector signed short vqp = vec_splat( + (vector signed short)vec_ld(0, qp), 0); + +#define LOAD_LINE(i) \ + const vector unsigned char perm##i = \ + vec_lvsl(i * stride, src2); \ + const vector unsigned char vbA##i = \ + vec_ld(i * stride, src2); \ + const vector unsigned char vbB##i = \ + vec_ld(i * stride + 16, src2); \ + const vector unsigned char vbT##i = \ + vec_perm(vbA##i, vbB##i, perm##i); \ + const vector signed short vb##i = \ + (vector signed short)vec_mergeh((vector unsigned char)zero, \ + (vector unsigned char)vbT##i) + + LOAD_LINE(1); + LOAD_LINE(2); + LOAD_LINE(3); + LOAD_LINE(4); + LOAD_LINE(5); + LOAD_LINE(6); + LOAD_LINE(7); + LOAD_LINE(8); +#undef LOAD_LINE + + const vector signed short v_1 = vec_splat_s16(1); + const vector signed short v_2 = vec_splat_s16(2); + const vector signed short v_5 = vec_splat_s16(5); + const vector signed short v_32 = vec_sl(v_1, + (vector unsigned short)v_5); + /* middle energy */ + const vector signed short l3minusl6 = vec_sub(vb3, vb6); + const vector signed short l5minusl4 = vec_sub(vb5, vb4); + const vector signed short twotimes_l3minusl6 = vec_mladd(v_2, l3minusl6, (vector signed short)zero); + const vector signed short mE = vec_mladd(v_5, l5minusl4, twotimes_l3minusl6); + const vector signed short absmE = vec_abs(mE); + /* left & right energy */ + const vector signed short l1minusl4 = vec_sub(vb1, vb4); + const vector signed short l3minusl2 = vec_sub(vb3, vb2); + const vector signed short l5minusl8 = vec_sub(vb5, vb8); + const vector signed short l7minusl6 = vec_sub(vb7, vb6); + const vector signed short twotimes_l1minusl4 = vec_mladd(v_2, l1minusl4, (vector signed short)zero); + const vector signed short twotimes_l5minusl8 = vec_mladd(v_2, l5minusl8, (vector signed short)zero); + const vector signed short lE = vec_mladd(v_5, l3minusl2, twotimes_l1minusl4); + const vector signed short rE = vec_mladd(v_5, l7minusl6, twotimes_l5minusl8); + /* d */ + const vector signed short ddiff = vec_sub(absmE, + vec_min(vec_abs(lE), + vec_abs(rE))); + const vector signed short ddiffclamp = vec_max(ddiff, (vector signed short)zero); + const vector signed short dtimes64 = vec_mladd(v_5, ddiffclamp, v_32); + const vector signed short d = vec_sra(dtimes64, vec_splat_u16(6)); + const vector signed short minusd = vec_sub((vector signed short)zero, d); + const vector signed short finald = vec_sel(minusd, + d, + vec_cmpgt(vec_sub((vector signed short)zero, mE), + (vector signed short)zero)); + /* q */ + const vector signed short qtimes2 = vec_sub(vb4, vb5); + /* for a shift right to behave like /2, we need to add one + to all negative integer */ + const vector signed short rounddown = vec_sel((vector signed short)zero, + v_1, + vec_cmplt(qtimes2, (vector signed short)zero)); + const vector signed short q = vec_sra(vec_add(qtimes2, rounddown), vec_splat_u16(1)); + /* clamp */ + const vector signed short dclamp_P1 = vec_max((vector signed short)zero, finald); + const vector signed short dclamp_P = vec_min(dclamp_P1, q); + const vector signed short dclamp_N1 = vec_min((vector signed short)zero, finald); + const vector signed short dclamp_N = vec_max(dclamp_N1, q); + + const vector signed short dclampedfinal = vec_sel(dclamp_N, + dclamp_P, + vec_cmpgt(q, (vector signed short)zero)); + const vector signed short dornotd = vec_sel((vector signed short)zero, + dclampedfinal, + vec_cmplt(absmE, vqp)); + /* add/subtract to l4 and l5 */ + const vector signed short vb4minusd = vec_sub(vb4, dornotd); + const vector signed short vb5plusd = vec_add(vb5, dornotd); + /* finally, stores */ + const vector unsigned char st4 = vec_packsu(vb4minusd, (vector signed short)zero); + const vector unsigned char st5 = vec_packsu(vb5plusd, (vector signed short)zero); + + const vector signed char neg1 = vec_splat_s8(-1); + const vector unsigned char permHH = (const vector unsigned char){0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F}; + +#define STORE(i) \ +{ const vector unsigned char perms##i = \ + vec_lvsr(i * stride, src2); \ + const vector unsigned char vg##i = \ + vec_perm(st##i, vbT##i, permHH); \ + const vector unsigned char mask##i = \ + vec_perm((vector unsigned char)zero, (vector unsigned char)neg1, perms##i); \ + const vector unsigned char vg2##i = \ + vec_perm(vg##i, vg##i, perms##i); \ + const vector unsigned char svA##i = \ + vec_sel(vbA##i, vg2##i, mask##i); \ + const vector unsigned char svB##i = \ + vec_sel(vg2##i, vbB##i, mask##i); \ + vec_st(svA##i, i * stride, src2); \ + vec_st(svB##i, i * stride + 16, src2);} + + STORE(4) + STORE(5) +} + +static inline void dering_altivec(uint8_t src[], int stride, PPContext *c) { + const vector signed int vsint32_8 = vec_splat_s32(8); + const vector unsigned int vuint32_4 = vec_splat_u32(4); + const vector signed char neg1 = vec_splat_s8(-1); + + const vector unsigned char permA1 = (vector unsigned char) + {0x00, 0x01, 0x02, 0x10, 0x11, 0x12, 0x1F, 0x1F, + 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F}; + const vector unsigned char permA2 = (vector unsigned char) + {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x10, 0x11, + 0x12, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F}; + const vector unsigned char permA1inc = (vector unsigned char) + {0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; + const vector unsigned char permA2inc = (vector unsigned char) + {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, + 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; + const vector unsigned char magic = (vector unsigned char) + {0x01, 0x02, 0x01, 0x02, 0x04, 0x02, 0x01, 0x02, + 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; + const vector unsigned char extractPerm = (vector unsigned char) + {0x10, 0x10, 0x10, 0x01, 0x10, 0x10, 0x10, 0x01, + 0x10, 0x10, 0x10, 0x01, 0x10, 0x10, 0x10, 0x01}; + const vector unsigned char extractPermInc = (vector unsigned char) + {0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, + 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01}; + const vector unsigned char identity = vec_lvsl(0,(unsigned char *)0); + const vector unsigned char tenRight = (vector unsigned char) + {0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; + const vector unsigned char eightLeft = (vector unsigned char) + {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08}; + + /* + this code makes no assumption on src or stride. + One could remove the recomputation of the perm + vector by assuming (stride % 16) == 0, unfortunately + this is not always true. Quite a lot of load/stores + can be removed by assuming proper alignment of + src & stride :-( + */ + uint8_t *srcCopy = src; + DECLARE_ALIGNED(16, uint8_t, dt)[16] = { deringThreshold }; + const vector signed int zero = vec_splat_s32(0); + vector unsigned char v_dt = vec_splat(vec_ld(0, dt), 0); + +#define LOAD_LINE(i) \ + const vector unsigned char perm##i = \ + vec_lvsl(i * stride, srcCopy); \ + vector unsigned char sA##i = vec_ld(i * stride, srcCopy); \ + vector unsigned char sB##i = vec_ld(i * stride + 16, srcCopy); \ + vector unsigned char src##i = vec_perm(sA##i, sB##i, perm##i) + + LOAD_LINE(0); + LOAD_LINE(1); + LOAD_LINE(2); + LOAD_LINE(3); + LOAD_LINE(4); + LOAD_LINE(5); + LOAD_LINE(6); + LOAD_LINE(7); + LOAD_LINE(8); + LOAD_LINE(9); +#undef LOAD_LINE + + vector unsigned char v_avg; + DECLARE_ALIGNED(16, signed int, S)[8]; + DECLARE_ALIGNED(16, int, tQP2)[4] = { c->QP/2 + 1 }; + vector signed int vQP2 = vec_ld(0, tQP2); + vQP2 = vec_splat(vQP2, 0); + + { + const vector unsigned char trunc_perm = (vector unsigned char) + {0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, + 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18}; + const vector unsigned char trunc_src12 = vec_perm(src1, src2, trunc_perm); + const vector unsigned char trunc_src34 = vec_perm(src3, src4, trunc_perm); + const vector unsigned char trunc_src56 = vec_perm(src5, src6, trunc_perm); + const vector unsigned char trunc_src78 = vec_perm(src7, src8, trunc_perm); + +#define EXTRACT(op) do { \ + const vector unsigned char s_1 = vec_##op(trunc_src12, trunc_src34); \ + const vector unsigned char s_2 = vec_##op(trunc_src56, trunc_src78); \ + const vector unsigned char s_6 = vec_##op(s_1, s_2); \ + const vector unsigned char s_8h = vec_mergeh(s_6, s_6); \ + const vector unsigned char s_8l = vec_mergel(s_6, s_6); \ + const vector unsigned char s_9 = vec_##op(s_8h, s_8l); \ + const vector unsigned char s_9h = vec_mergeh(s_9, s_9); \ + const vector unsigned char s_9l = vec_mergel(s_9, s_9); \ + const vector unsigned char s_10 = vec_##op(s_9h, s_9l); \ + const vector unsigned char s_10h = vec_mergeh(s_10, s_10); \ + const vector unsigned char s_10l = vec_mergel(s_10, s_10); \ + const vector unsigned char s_11 = vec_##op(s_10h, s_10l); \ + const vector unsigned char s_11h = vec_mergeh(s_11, s_11); \ + const vector unsigned char s_11l = vec_mergel(s_11, s_11); \ + v_##op = vec_##op(s_11h, s_11l); \ +} while (0) + + vector unsigned char v_min; + vector unsigned char v_max; + EXTRACT(min); + EXTRACT(max); +#undef EXTRACT + + if (vec_all_lt(vec_sub(v_max, v_min), v_dt)) + return; + + v_avg = vec_avg(v_min, v_max); + } + + { + const vector unsigned short mask1 = (vector unsigned short) + {0x0001, 0x0002, 0x0004, 0x0008, + 0x0010, 0x0020, 0x0040, 0x0080}; + const vector unsigned short mask2 = (vector unsigned short) + {0x0100, 0x0200, 0x0000, 0x0000, + 0x0000, 0x0000, 0x0000, 0x0000}; + + const vector unsigned int vuint32_16 = vec_sl(vec_splat_u32(1), vec_splat_u32(4)); + const vector unsigned int vuint32_1 = vec_splat_u32(1); + + vector signed int sumA2; + vector signed int sumB2; + vector signed int sum0, sum1, sum2, sum3, sum4; + vector signed int sum5, sum6, sum7, sum8, sum9; + +#define COMPARE(i) \ + do { \ + const vector unsigned char cmp = \ + (vector unsigned char)vec_cmpgt(src##i, v_avg); \ + const vector unsigned short cmpHi = \ + (vector unsigned short)vec_mergeh(cmp, cmp); \ + const vector unsigned short cmpLi = \ + (vector unsigned short)vec_mergel(cmp, cmp); \ + const vector signed short cmpHf = \ + (vector signed short)vec_and(cmpHi, mask1); \ + const vector signed short cmpLf = \ + (vector signed short)vec_and(cmpLi, mask2); \ + const vector signed int sump = vec_sum4s(cmpHf, zero); \ + const vector signed int sumq = vec_sum4s(cmpLf, sump); \ + sum##i = vec_sums(sumq, zero); \ + } while (0) + + COMPARE(0); + COMPARE(1); + COMPARE(2); + COMPARE(3); + COMPARE(4); + COMPARE(5); + COMPARE(6); + COMPARE(7); + COMPARE(8); + COMPARE(9); +#undef COMPARE + + { + const vector signed int sump02 = vec_mergel(sum0, sum2); + const vector signed int sump13 = vec_mergel(sum1, sum3); + const vector signed int sumA = vec_mergel(sump02, sump13); + + const vector signed int sump46 = vec_mergel(sum4, sum6); + const vector signed int sump57 = vec_mergel(sum5, sum7); + const vector signed int sumB = vec_mergel(sump46, sump57); + + const vector signed int sump8A = vec_mergel(sum8, zero); + const vector signed int sump9B = vec_mergel(sum9, zero); + const vector signed int sumC = vec_mergel(sump8A, sump9B); + + const vector signed int tA = vec_sl(vec_nor(zero, sumA), vuint32_16); + const vector signed int tB = vec_sl(vec_nor(zero, sumB), vuint32_16); + const vector signed int tC = vec_sl(vec_nor(zero, sumC), vuint32_16); + const vector signed int t2A = vec_or(sumA, tA); + const vector signed int t2B = vec_or(sumB, tB); + const vector signed int t2C = vec_or(sumC, tC); + const vector signed int t3A = vec_and(vec_sra(t2A, vuint32_1), + vec_sl(t2A, vuint32_1)); + const vector signed int t3B = vec_and(vec_sra(t2B, vuint32_1), + vec_sl(t2B, vuint32_1)); + const vector signed int t3C = vec_and(vec_sra(t2C, vuint32_1), + vec_sl(t2C, vuint32_1)); + const vector signed int yA = vec_and(t2A, t3A); + const vector signed int yB = vec_and(t2B, t3B); + const vector signed int yC = vec_and(t2C, t3C); + + const vector unsigned char strangeperm1 = vec_lvsl(4, (unsigned char*)0); + const vector unsigned char strangeperm2 = vec_lvsl(8, (unsigned char*)0); + const vector signed int sumAd4 = vec_perm(yA, yB, strangeperm1); + const vector signed int sumAd8 = vec_perm(yA, yB, strangeperm2); + const vector signed int sumBd4 = vec_perm(yB, yC, strangeperm1); + const vector signed int sumBd8 = vec_perm(yB, yC, strangeperm2); + const vector signed int sumAp = vec_and(yA, + vec_and(sumAd4,sumAd8)); + const vector signed int sumBp = vec_and(yB, + vec_and(sumBd4,sumBd8)); + sumA2 = vec_or(sumAp, + vec_sra(sumAp, + vuint32_16)); + sumB2 = vec_or(sumBp, + vec_sra(sumBp, + vuint32_16)); + } + vec_st(sumA2, 0, S); + vec_st(sumB2, 16, S); + } + + /* I'm not sure the following is actually faster + than straight, unvectorized C code :-( */ + +#define F_INIT() \ + vector unsigned char tenRightM = tenRight; \ + vector unsigned char permA1M = permA1; \ + vector unsigned char permA2M = permA2; \ + vector unsigned char extractPermM = extractPerm + +#define F2(i, j, k, l) \ + if (S[i] & (1 << (l+1))) { \ + const vector unsigned char a_A = vec_perm(src##i, src##j, permA1M); \ + const vector unsigned char a_B = vec_perm(a_A, src##k, permA2M); \ + const vector signed int a_sump = \ + (vector signed int)vec_msum(a_B, magic, (vector unsigned int)zero);\ + vector signed int F = vec_sr(vec_sums(a_sump, vsint32_8), vuint32_4); \ + const vector signed int p = \ + (vector signed int)vec_perm(src##j, (vector unsigned char)zero, \ + extractPermM); \ + const vector signed int sum = vec_add(p, vQP2); \ + const vector signed int diff = vec_sub(p, vQP2); \ + vector signed int newpm; \ + vector unsigned char newpm2, mask; \ + F = vec_splat(F, 3); \ + if (vec_all_lt(sum, F)) \ + newpm = sum; \ + else if (vec_all_gt(diff, F)) \ + newpm = diff; \ + else newpm = F; \ + newpm2 = vec_splat((vector unsigned char)newpm, 15); \ + mask = vec_add(identity, tenRightM); \ + src##j = vec_perm(src##j, newpm2, mask); \ + } \ + permA1M = vec_add(permA1M, permA1inc); \ + permA2M = vec_add(permA2M, permA2inc); \ + tenRightM = vec_sro(tenRightM, eightLeft); \ + extractPermM = vec_add(extractPermM, extractPermInc) + +#define ITER(i, j, k) do { \ + F_INIT(); \ + F2(i, j, k, 0); \ + F2(i, j, k, 1); \ + F2(i, j, k, 2); \ + F2(i, j, k, 3); \ + F2(i, j, k, 4); \ + F2(i, j, k, 5); \ + F2(i, j, k, 6); \ + F2(i, j, k, 7); \ +} while (0) + + ITER(0, 1, 2); + ITER(1, 2, 3); + ITER(2, 3, 4); + ITER(3, 4, 5); + ITER(4, 5, 6); + ITER(5, 6, 7); + ITER(6, 7, 8); + ITER(7, 8, 9); + +#define STORE_LINE(i) do { \ + const vector unsigned char permST = \ + vec_lvsr(i * stride, srcCopy); \ + const vector unsigned char maskST = \ + vec_perm((vector unsigned char)zero, \ + (vector unsigned char)neg1, permST); \ + src##i = vec_perm(src##i ,src##i, permST); \ + sA##i= vec_sel(sA##i, src##i, maskST); \ + sB##i= vec_sel(src##i, sB##i, maskST); \ + vec_st(sA##i, i * stride, srcCopy); \ + vec_st(sB##i, i * stride + 16, srcCopy); \ +} while (0) + + STORE_LINE(1); + STORE_LINE(2); + STORE_LINE(3); + STORE_LINE(4); + STORE_LINE(5); + STORE_LINE(6); + STORE_LINE(7); + STORE_LINE(8); + +#undef STORE_LINE +#undef ITER +#undef F2 +} + +#define doHorizLowPass_altivec(a...) doHorizLowPass_C(a) +#define doHorizDefFilter_altivec(a...) doHorizDefFilter_C(a) +#define do_a_deblock_altivec(a...) do_a_deblock_C(a) + +static inline void RENAME(tempNoiseReducer)(uint8_t *src, int stride, + uint8_t *tempBlurred, uint32_t *tempBlurredPast, int *maxNoise) +{ + const vector signed char neg1 = vec_splat_s8(-1); + const vector unsigned char permHH = (const vector unsigned char){0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F}; + + const vector signed int zero = vec_splat_s32(0); + const vector signed short vsint16_1 = vec_splat_s16(1); + vector signed int v_dp = zero; + vector signed int v_sysdp = zero; + int d, sysd, i; + +#define LOAD_LINE(src, i) \ + register int j##src##i = i * stride; \ + vector unsigned char perm##src##i = vec_lvsl(j##src##i, src); \ + const vector unsigned char v_##src##A1##i = vec_ld(j##src##i, src); \ + const vector unsigned char v_##src##A2##i = vec_ld(j##src##i + 16, src); \ + const vector unsigned char v_##src##A##i = \ + vec_perm(v_##src##A1##i, v_##src##A2##i, perm##src##i); \ + vector signed short v_##src##Ass##i = \ + (vector signed short)vec_mergeh((vector signed char)zero, \ + (vector signed char)v_##src##A##i) + + LOAD_LINE(src, 0); + LOAD_LINE(src, 1); + LOAD_LINE(src, 2); + LOAD_LINE(src, 3); + LOAD_LINE(src, 4); + LOAD_LINE(src, 5); + LOAD_LINE(src, 6); + LOAD_LINE(src, 7); + + LOAD_LINE(tempBlurred, 0); + LOAD_LINE(tempBlurred, 1); + LOAD_LINE(tempBlurred, 2); + LOAD_LINE(tempBlurred, 3); + LOAD_LINE(tempBlurred, 4); + LOAD_LINE(tempBlurred, 5); + LOAD_LINE(tempBlurred, 6); + LOAD_LINE(tempBlurred, 7); +#undef LOAD_LINE + +#define ACCUMULATE_DIFFS(i) do { \ + vector signed short v_d = vec_sub(v_tempBlurredAss##i, \ + v_srcAss##i); \ + v_dp = vec_msums(v_d, v_d, v_dp); \ + v_sysdp = vec_msums(v_d, vsint16_1, v_sysdp); \ + } while (0) + + ACCUMULATE_DIFFS(0); + ACCUMULATE_DIFFS(1); + ACCUMULATE_DIFFS(2); + ACCUMULATE_DIFFS(3); + ACCUMULATE_DIFFS(4); + ACCUMULATE_DIFFS(5); + ACCUMULATE_DIFFS(6); + ACCUMULATE_DIFFS(7); +#undef ACCUMULATE_DIFFS + + tempBlurredPast[127]= maxNoise[0]; + tempBlurredPast[128]= maxNoise[1]; + tempBlurredPast[129]= maxNoise[2]; + + v_dp = vec_sums(v_dp, zero); + v_sysdp = vec_sums(v_sysdp, zero); + + v_dp = vec_splat(v_dp, 3); + v_sysdp = vec_splat(v_sysdp, 3); + + vec_ste(v_dp, 0, &d); + vec_ste(v_sysdp, 0, &sysd); + + i = d; + d = (4*d + +(*(tempBlurredPast-256)) + +(*(tempBlurredPast-1))+ (*(tempBlurredPast+1)) + +(*(tempBlurredPast+256)) + +4)>>3; + + *tempBlurredPast=i; + + if (d > maxNoise[1]) { + if (d < maxNoise[2]) { +#define OP(i) v_tempBlurredAss##i = vec_avg(v_tempBlurredAss##i, v_srcAss##i); + + OP(0); + OP(1); + OP(2); + OP(3); + OP(4); + OP(5); + OP(6); + OP(7); +#undef OP + } else { +#define OP(i) v_tempBlurredAss##i = v_srcAss##i; + + OP(0); + OP(1); + OP(2); + OP(3); + OP(4); + OP(5); + OP(6); + OP(7); +#undef OP + } + } else { + if (d < maxNoise[0]) { + const vector signed short vsint16_7 = vec_splat_s16(7); + const vector signed short vsint16_4 = vec_splat_s16(4); + const vector unsigned short vuint16_3 = vec_splat_u16(3); + +#define OP(i) do { \ + const vector signed short v_temp = \ + vec_mladd(v_tempBlurredAss##i, vsint16_7, v_srcAss##i); \ + const vector signed short v_temp2 = vec_add(v_temp, vsint16_4); \ + v_tempBlurredAss##i = vec_sr(v_temp2, vuint16_3); \ + } while (0) + + OP(0); + OP(1); + OP(2); + OP(3); + OP(4); + OP(5); + OP(6); + OP(7); +#undef OP + } else { + const vector signed short vsint16_3 = vec_splat_s16(3); + const vector signed short vsint16_2 = vec_splat_s16(2); + +#define OP(i) do { \ + const vector signed short v_temp = \ + vec_mladd(v_tempBlurredAss##i, vsint16_3, v_srcAss##i); \ + const vector signed short v_temp2 = vec_add(v_temp, vsint16_2); \ + v_tempBlurredAss##i = \ + vec_sr(v_temp2, (vector unsigned short)vsint16_2); \ + } while (0) + + OP(0); + OP(1); + OP(2); + OP(3); + OP(4); + OP(5); + OP(6); + OP(7); +#undef OP + } + } + +#define PACK_AND_STORE(src, i) do { \ + const vector unsigned char perms = vec_lvsr(i * stride, src); \ + const vector unsigned char vf = \ + vec_packsu(v_tempBlurredAss##1, (vector signed short)zero); \ + const vector unsigned char vg = vec_perm(vf, v_##src##A##i, permHH); \ + const vector unsigned char mask = \ + vec_perm((vector unsigned char)zero, (vector unsigned char)neg1, perms); \ + const vector unsigned char vg2 = vec_perm(vg, vg, perms); \ + const vector unsigned char svA = vec_sel(v_##src##A1##i, vg2, mask); \ + const vector unsigned char svB = vec_sel(vg2, v_##src##A2##i, mask); \ + vec_st(svA, i * stride, src); \ + vec_st(svB, i * stride + 16, src); \ +} while (0) + + PACK_AND_STORE(src, 0); + PACK_AND_STORE(src, 1); + PACK_AND_STORE(src, 2); + PACK_AND_STORE(src, 3); + PACK_AND_STORE(src, 4); + PACK_AND_STORE(src, 5); + PACK_AND_STORE(src, 6); + PACK_AND_STORE(src, 7); + PACK_AND_STORE(tempBlurred, 0); + PACK_AND_STORE(tempBlurred, 1); + PACK_AND_STORE(tempBlurred, 2); + PACK_AND_STORE(tempBlurred, 3); + PACK_AND_STORE(tempBlurred, 4); + PACK_AND_STORE(tempBlurred, 5); + PACK_AND_STORE(tempBlurred, 6); + PACK_AND_STORE(tempBlurred, 7); +#undef PACK_AND_STORE +} + +static inline void transpose_16x8_char_toPackedAlign_altivec(unsigned char* dst, unsigned char* src, int stride) { + const vector unsigned char zero = vec_splat_u8(0); + +#define LOAD_DOUBLE_LINE(i, j) \ + vector unsigned char perm1##i = vec_lvsl(i * stride, src); \ + vector unsigned char perm2##i = vec_lvsl(j * stride, src); \ + vector unsigned char srcA##i = vec_ld(i * stride, src); \ + vector unsigned char srcB##i = vec_ld(i * stride + 16, src); \ + vector unsigned char srcC##i = vec_ld(j * stride, src); \ + vector unsigned char srcD##i = vec_ld(j * stride+ 16, src); \ + vector unsigned char src##i = vec_perm(srcA##i, srcB##i, perm1##i); \ + vector unsigned char src##j = vec_perm(srcC##i, srcD##i, perm2##i) + + LOAD_DOUBLE_LINE(0, 1); + LOAD_DOUBLE_LINE(2, 3); + LOAD_DOUBLE_LINE(4, 5); + LOAD_DOUBLE_LINE(6, 7); +#undef LOAD_DOUBLE_LINE + + vector unsigned char tempA = vec_mergeh(src0, zero); + vector unsigned char tempB = vec_mergel(src0, zero); + vector unsigned char tempC = vec_mergeh(src1, zero); + vector unsigned char tempD = vec_mergel(src1, zero); + vector unsigned char tempE = vec_mergeh(src2, zero); + vector unsigned char tempF = vec_mergel(src2, zero); + vector unsigned char tempG = vec_mergeh(src3, zero); + vector unsigned char tempH = vec_mergel(src3, zero); + vector unsigned char tempI = vec_mergeh(src4, zero); + vector unsigned char tempJ = vec_mergel(src4, zero); + vector unsigned char tempK = vec_mergeh(src5, zero); + vector unsigned char tempL = vec_mergel(src5, zero); + vector unsigned char tempM = vec_mergeh(src6, zero); + vector unsigned char tempN = vec_mergel(src6, zero); + vector unsigned char tempO = vec_mergeh(src7, zero); + vector unsigned char tempP = vec_mergel(src7, zero); + + vector unsigned char temp0 = vec_mergeh(tempA, tempI); + vector unsigned char temp1 = vec_mergel(tempA, tempI); + vector unsigned char temp2 = vec_mergeh(tempB, tempJ); + vector unsigned char temp3 = vec_mergel(tempB, tempJ); + vector unsigned char temp4 = vec_mergeh(tempC, tempK); + vector unsigned char temp5 = vec_mergel(tempC, tempK); + vector unsigned char temp6 = vec_mergeh(tempD, tempL); + vector unsigned char temp7 = vec_mergel(tempD, tempL); + vector unsigned char temp8 = vec_mergeh(tempE, tempM); + vector unsigned char temp9 = vec_mergel(tempE, tempM); + vector unsigned char temp10 = vec_mergeh(tempF, tempN); + vector unsigned char temp11 = vec_mergel(tempF, tempN); + vector unsigned char temp12 = vec_mergeh(tempG, tempO); + vector unsigned char temp13 = vec_mergel(tempG, tempO); + vector unsigned char temp14 = vec_mergeh(tempH, tempP); + vector unsigned char temp15 = vec_mergel(tempH, tempP); + + tempA = vec_mergeh(temp0, temp8); + tempB = vec_mergel(temp0, temp8); + tempC = vec_mergeh(temp1, temp9); + tempD = vec_mergel(temp1, temp9); + tempE = vec_mergeh(temp2, temp10); + tempF = vec_mergel(temp2, temp10); + tempG = vec_mergeh(temp3, temp11); + tempH = vec_mergel(temp3, temp11); + tempI = vec_mergeh(temp4, temp12); + tempJ = vec_mergel(temp4, temp12); + tempK = vec_mergeh(temp5, temp13); + tempL = vec_mergel(temp5, temp13); + tempM = vec_mergeh(temp6, temp14); + tempN = vec_mergel(temp6, temp14); + tempO = vec_mergeh(temp7, temp15); + tempP = vec_mergel(temp7, temp15); + + temp0 = vec_mergeh(tempA, tempI); + temp1 = vec_mergel(tempA, tempI); + temp2 = vec_mergeh(tempB, tempJ); + temp3 = vec_mergel(tempB, tempJ); + temp4 = vec_mergeh(tempC, tempK); + temp5 = vec_mergel(tempC, tempK); + temp6 = vec_mergeh(tempD, tempL); + temp7 = vec_mergel(tempD, tempL); + temp8 = vec_mergeh(tempE, tempM); + temp9 = vec_mergel(tempE, tempM); + temp10 = vec_mergeh(tempF, tempN); + temp11 = vec_mergel(tempF, tempN); + temp12 = vec_mergeh(tempG, tempO); + temp13 = vec_mergel(tempG, tempO); + temp14 = vec_mergeh(tempH, tempP); + temp15 = vec_mergel(tempH, tempP); + + vec_st(temp0, 0, dst); + vec_st(temp1, 16, dst); + vec_st(temp2, 32, dst); + vec_st(temp3, 48, dst); + vec_st(temp4, 64, dst); + vec_st(temp5, 80, dst); + vec_st(temp6, 96, dst); + vec_st(temp7, 112, dst); + vec_st(temp8, 128, dst); + vec_st(temp9, 144, dst); + vec_st(temp10, 160, dst); + vec_st(temp11, 176, dst); + vec_st(temp12, 192, dst); + vec_st(temp13, 208, dst); + vec_st(temp14, 224, dst); + vec_st(temp15, 240, dst); +} + +static inline void transpose_8x16_char_fromPackedAlign_altivec(unsigned char* dst, unsigned char* src, int stride) { + const vector unsigned char zero = vec_splat_u8(0); + const vector signed char neg1 = vec_splat_s8(-1); + +#define LOAD_DOUBLE_LINE(i, j) \ + vector unsigned char src##i = vec_ld(i * 16, src); \ + vector unsigned char src##j = vec_ld(j * 16, src) + + LOAD_DOUBLE_LINE(0, 1); + LOAD_DOUBLE_LINE(2, 3); + LOAD_DOUBLE_LINE(4, 5); + LOAD_DOUBLE_LINE(6, 7); + LOAD_DOUBLE_LINE(8, 9); + LOAD_DOUBLE_LINE(10, 11); + LOAD_DOUBLE_LINE(12, 13); + LOAD_DOUBLE_LINE(14, 15); +#undef LOAD_DOUBLE_LINE + + vector unsigned char tempA = vec_mergeh(src0, src8); + vector unsigned char tempB; + vector unsigned char tempC = vec_mergeh(src1, src9); + vector unsigned char tempD; + vector unsigned char tempE = vec_mergeh(src2, src10); + vector unsigned char tempG = vec_mergeh(src3, src11); + vector unsigned char tempI = vec_mergeh(src4, src12); + vector unsigned char tempJ; + vector unsigned char tempK = vec_mergeh(src5, src13); + vector unsigned char tempL; + vector unsigned char tempM = vec_mergeh(src6, src14); + vector unsigned char tempO = vec_mergeh(src7, src15); + + vector unsigned char temp0 = vec_mergeh(tempA, tempI); + vector unsigned char temp1 = vec_mergel(tempA, tempI); + vector unsigned char temp2; + vector unsigned char temp3; + vector unsigned char temp4 = vec_mergeh(tempC, tempK); + vector unsigned char temp5 = vec_mergel(tempC, tempK); + vector unsigned char temp6; + vector unsigned char temp7; + vector unsigned char temp8 = vec_mergeh(tempE, tempM); + vector unsigned char temp9 = vec_mergel(tempE, tempM); + vector unsigned char temp12 = vec_mergeh(tempG, tempO); + vector unsigned char temp13 = vec_mergel(tempG, tempO); + + tempA = vec_mergeh(temp0, temp8); + tempB = vec_mergel(temp0, temp8); + tempC = vec_mergeh(temp1, temp9); + tempD = vec_mergel(temp1, temp9); + tempI = vec_mergeh(temp4, temp12); + tempJ = vec_mergel(temp4, temp12); + tempK = vec_mergeh(temp5, temp13); + tempL = vec_mergel(temp5, temp13); + + temp0 = vec_mergeh(tempA, tempI); + temp1 = vec_mergel(tempA, tempI); + temp2 = vec_mergeh(tempB, tempJ); + temp3 = vec_mergel(tempB, tempJ); + temp4 = vec_mergeh(tempC, tempK); + temp5 = vec_mergel(tempC, tempK); + temp6 = vec_mergeh(tempD, tempL); + temp7 = vec_mergel(tempD, tempL); + + +#define STORE_DOUBLE_LINE(i, j) do { \ + vector unsigned char dstAi = vec_ld(i * stride, dst); \ + vector unsigned char dstBi = vec_ld(i * stride + 16, dst); \ + vector unsigned char dstAj = vec_ld(j * stride, dst); \ + vector unsigned char dstBj = vec_ld(j * stride+ 16, dst); \ + vector unsigned char aligni = vec_lvsr(i * stride, dst); \ + vector unsigned char alignj = vec_lvsr(j * stride, dst); \ + vector unsigned char maski = \ + vec_perm(zero, (vector unsigned char)neg1, aligni); \ + vector unsigned char maskj = \ + vec_perm(zero, (vector unsigned char)neg1, alignj); \ + vector unsigned char dstRi = vec_perm(temp##i, temp##i, aligni); \ + vector unsigned char dstRj = vec_perm(temp##j, temp##j, alignj); \ + vector unsigned char dstAFi = vec_sel(dstAi, dstRi, maski); \ + vector unsigned char dstBFi = vec_sel(dstRi, dstBi, maski); \ + vector unsigned char dstAFj = vec_sel(dstAj, dstRj, maskj); \ + vector unsigned char dstBFj = vec_sel(dstRj, dstBj, maskj); \ + vec_st(dstAFi, i * stride, dst); \ + vec_st(dstBFi, i * stride + 16, dst); \ + vec_st(dstAFj, j * stride, dst); \ + vec_st(dstBFj, j * stride + 16, dst); \ +} while (0) + + STORE_DOUBLE_LINE(0,1); + STORE_DOUBLE_LINE(2,3); + STORE_DOUBLE_LINE(4,5); + STORE_DOUBLE_LINE(6,7); +} |