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Diffstat (limited to 'libavcodec/libpostproc/postprocess_altivec_template.c')
| -rw-r--r-- | libavcodec/libpostproc/postprocess_altivec_template.c | 713 |
1 files changed, 713 insertions, 0 deletions
diff --git a/libavcodec/libpostproc/postprocess_altivec_template.c b/libavcodec/libpostproc/postprocess_altivec_template.c new file mode 100644 index 0000000000..0c84873cc8 --- /dev/null +++ b/libavcodec/libpostproc/postprocess_altivec_template.c @@ -0,0 +1,713 @@ +/* + AltiVec optimizations (C) 2004 Romain Dolbeau <romain@dolbeau.org> + + based on code by Copyright (C) 2001-2003 Michael Niedermayer (michaelni@gmx.at) + + This program 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. + + This program 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 this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + + +#ifdef CONFIG_DARWIN +#define AVV(x...) (x) +#else +#define AVV(x...) {x} +#endif + +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. + */ + register int y; + short __attribute__ ((aligned(16))) data[8]; + int numEq; + uint8_t *src2 = src; + vector signed short v_dcOffset; + vector signed short v2QP; + vector unsigned short v4QP; + vector unsigned short v_dcThreshold; + int two_vectors = ((((unsigned long)src2 % 16) > 8) || (stride % 16)) ? 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); + + data[0] = ((c->nonBQP*c->ppMode.baseDcDiff)>>8) + 1; + data[1] = data[0] * 2 + 1; + data[2] = c->QP * 2; + data[3] = c->QP * 4; + vector signed short v_data = vec_ld(0, data); + 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) \ + register int j##i = i * stride; \ + vector unsigned char perm##i = vec_lvsl(j##i, src2); \ + const vector unsigned char v_srcA1##i = vec_ld(j##i, src2); \ + vector unsigned char v_srcA2##i; \ + if (two_vectors) \ + v_srcA2##i = vec_ld(j##i + 16, src2); \ + const vector unsigned char v_srcA##i = \ + vec_perm(v_srcA1##i, v_srcA2##i, perm##i); \ + vector signed short v_srcAss##i = \ + (vector signed short)vec_mergeh((vector signed char)zero, \ + (vector signed char)v_srcA##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); +#undef LOAD_LINE + +#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); \ + v_numEq = vec_sum4s(v_part##i, v_numEq); + + ITER(0, 1); + ITER(1, 2); + ITER(2, 3); + ITER(3, 4); + ITER(4, 5); + ITER(5, 6); + ITER(6, 7); +#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) + AVV(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) + AVV(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 alignement of + src & stride :-( + */ + uint8_t *src2 = src; + const vector signed int zero = vec_splat_s32(0); + short __attribute__ ((aligned(16))) qp[8]; + qp[0] = c->QP; + vector signed short vqp = vec_ld(0, qp); + vqp = vec_splat(vqp, 0); + +#define LOAD_LINE(i) \ + const vector unsigned char perml##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, perml##i); \ + const vector signed short vb##i = \ + (vector signed short)vec_mergeh((vector unsigned char)zero, \ + (vector unsigned char)vbT##i) + + src2 += stride*3; + + 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 + + const vector unsigned short v_1 = vec_splat_u16(1); + 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_8 = vec_splat_s16(8); + + const vector signed short v_first = vec_sel(vb1, vb0, + vec_cmplt(vec_abs(vec_sub(vb0, vb1)), + vqp)); + const vector signed short v_last = vec_sel(vb8, vb9, + vec_cmplt(vec_abs(vec_sub(vb8, vb9)), + vqp)); + + const vector signed short v_sums0 = vec_add(v_first, vb1); + const vector signed short v_sums1 = vec_add(vb1, vb2); + const vector signed short v_sums2 = vec_add(vb2, vb3); + const vector signed short v_sums3 = vec_add(vb3, vb4); + const vector signed short v_sums4 = vec_add(vb4, vb5); + const vector signed short v_sums5 = vec_add(vb5, vb6); + const vector signed short v_sums6 = vec_add(vb6, vb7); + const vector signed short v_sums7 = vec_add(vb7, vb8); + const vector signed short v_sums8 = vec_add(vb8, v_last); + + const vector signed short vr1 = vec_sra(vec_add(vec_add(vec_sl(v_sums0, v_2), + vec_sl(vec_add(v_first, v_sums2), v_1)), + vec_add(v_sums4, v_8)), + v_4); + const vector signed short vr2 = vec_sra(vec_add(vec_add(vec_sl(vb2, v_2), + v_sums5), + vec_add(v_8, + vec_sl(vec_add(v_first, + vec_add(v_sums0, v_sums3)), + v_1))), + v_4); + const vector signed short vr3 = vec_sra(vec_add(vec_add(vec_sl(vb3, v_2), + v_sums6), + vec_add(v_8, + vec_sl(vec_add(v_first, + vec_add(v_sums1, v_sums4)), + v_1))), + v_4); + const vector signed short vr4 = vec_sra(vec_add(vec_add(vec_sl(vb4, v_2), + v_sums7), + vec_add(v_8, + vec_add(v_sums0, + vec_sl(vec_add(v_sums2, v_sums5), + v_1)))), + v_4); + const vector signed short vr5 = vec_sra(vec_add(vec_add(vec_sl(vb5, v_2), + v_sums8), + vec_add(v_8, + vec_add(v_sums1, + vec_sl(vec_add(v_sums3, v_sums6), + v_1)))), + v_4); + const vector signed short vr6 = vec_sra(vec_add(vec_add(vec_sl(vb6, v_2), + v_sums2), + vec_add(v_8, + vec_sl(vec_add(v_last, + vec_add(v_sums7, v_sums4)), + v_1))), + v_4); + const vector signed short vr7 = vec_sra(vec_add(vec_add(vec_sl(vec_add(v_last, vb7), v_2), + vec_sl(vec_add(vb8, v_sums5), v_1)), + vec_add(v_8, v_sums3)), + v_4); + const vector signed short vr8 = vec_sra(vec_add(vec_add(vec_sl(v_sums8, v_2), + vec_sl(vec_add(v_last, v_sums6), v_1)), + vec_add(v_sums4, v_8)), + v_4); + + const vector unsigned char neg1 = (vector unsigned char)AVV(-1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1); + const vector unsigned char permHH = (vector unsigned char)AVV(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, 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) + + 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 +} + + + +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 alignement of + src & stride :-( + */ + uint8_t *src2 = src; + const vector signed int zero = vec_splat_s32(0); + short __attribute__ ((aligned(16))) qp[8]; + qp[0] = 8*c->QP; + vector signed short vqp = vec_ld(0, qp); + vqp = vec_splat(vqp, 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) + + src2 += stride*3; + + 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/substract 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 unsigned char neg1 = (vector unsigned char)AVV(-1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1); + + const vector unsigned char permHH = (vector unsigned char)AVV(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, 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) { + /* + 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 alignement of + src & stride :-( + */ + uint8_t *srcCopy = src; + uint8_t __attribute__((aligned(16))) dt[16]; + const vector unsigned char vuint8_1 = vec_splat_u8(1); + const vector signed int zero = vec_splat_s32(0); + vector unsigned char v_dt; + dt[0] = deringThreshold; + 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; + { + const vector unsigned char trunc_perm = (vector unsigned char) + AVV(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##op##_1 = vec_##op(trunc_src12, trunc_src34); \ + const vector unsigned char s##op##_2 = vec_##op(trunc_src56, trunc_src78); \ + const vector unsigned char s##op##_6 = vec_##op(s##op##_1, s##op##_2); \ + const vector unsigned char s##op##_8h = vec_mergeh(s##op##_6, s##op##_6); \ + const vector unsigned char s##op##_8l = vec_mergel(s##op##_6, s##op##_6); \ + const vector unsigned char s##op##_9 = vec_##op(s##op##_8h, s##op##_8l); \ + const vector unsigned char s##op##_9h = vec_mergeh(s##op##_9, s##op##_9); \ + const vector unsigned char s##op##_9l = vec_mergel(s##op##_9, s##op##_9); \ + const vector unsigned char s##op##_10 = vec_##op(s##op##_9h, s##op##_9l); \ + const vector unsigned char s##op##_10h = vec_mergeh(s##op##_10, s##op##_10); \ + const vector unsigned char s##op##_10l = vec_mergel(s##op##_10, s##op##_10); \ + const vector unsigned char s##op##_11 = vec_##op(s##op##_10h, s##op##_10l); \ + const vector unsigned char s##op##_11h = vec_mergeh(s##op##_11, s##op##_11); \ + const vector unsigned char s##op##_11l = vec_mergel(s##op##_11, s##op##_11); \ + v_##op = vec_##op(s##op##_11h, s##op##_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); + } + + signed int __attribute__((aligned(16))) S[8]; + { + const vector unsigned short mask1 = (vector unsigned short) + AVV(0x0001, 0x0002, 0x0004, 0x0008, + 0x0010, 0x0020, 0x0040, 0x0080); + const vector unsigned short mask2 = (vector unsigned short) + AVV(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); + +#define COMPARE(i) \ + vector signed int sum##i; \ + do { \ + const vector unsigned char cmp##i = \ + (vector unsigned char)vec_cmpgt(src##i, v_avg); \ + const vector unsigned short cmpHi##i = \ + (vector unsigned short)vec_mergeh(cmp##i, cmp##i); \ + const vector unsigned short cmpLi##i = \ + (vector unsigned short)vec_mergel(cmp##i, cmp##i); \ + const vector signed short cmpHf##i = \ + (vector signed short)vec_and(cmpHi##i, mask1); \ + const vector signed short cmpLf##i = \ + (vector signed short)vec_and(cmpLi##i, mask2); \ + const vector signed int sump##i = vec_sum4s(cmpHf##i, zero); \ + const vector signed int sumq##i = vec_sum4s(cmpLf##i, sump##i); \ + sum##i = vec_sums(sumq##i, 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 + + vector signed int sumA2; + vector signed int sumB2; + { + 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 :-( */ + + int __attribute__((aligned(16))) tQP2[4]; + tQP2[0]= c->QP/2 + 1; + vector signed int vQP2 = vec_ld(0, tQP2); + vQP2 = vec_splat(vQP2, 0); + const vector unsigned char vuint8_2 = vec_splat_u8(2); + const vector signed int vsint32_8 = vec_splat_s32(8); + const vector unsigned int vuint32_4 = vec_splat_u32(4); + + const vector unsigned char permA1 = (vector unsigned char) + AVV(0x00, 0x01, 0x02, 0x10, 0x11, 0x12, 0x1F, 0x1F, + 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F); + const vector unsigned char permA2 = (vector unsigned char) + AVV(0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x10, 0x11, + 0x12, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F); + const vector unsigned char permA1inc = (vector unsigned char) + AVV(0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00); + const vector unsigned char permA2inc = (vector unsigned char) + AVV(0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, + 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00); + const vector unsigned char magic = (vector unsigned char) + AVV(0x01, 0x02, 0x01, 0x02, 0x04, 0x02, 0x01, 0x02, + 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00); + const vector unsigned char extractPerm = (vector unsigned char) + AVV(0x10, 0x10, 0x10, 0x01, 0x10, 0x10, 0x10, 0x01, + 0x10, 0x10, 0x10, 0x01, 0x10, 0x10, 0x10, 0x01); + const vector unsigned char extractPermInc = (vector unsigned char) + AVV(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) + AVV(0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00); + const vector unsigned char eightLeft = (vector unsigned char) + AVV(0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08); + + +#define F_INIT(i) \ + vector unsigned char tenRightM##i = tenRight; \ + vector unsigned char permA1M##i = permA1; \ + vector unsigned char permA2M##i = permA2; \ + vector unsigned char extractPermM##i = extractPerm + +#define F2(i, j, k, l) \ + if (S[i] & (1 << (l+1))) { \ + const vector unsigned char a_##j##_A##l = \ + vec_perm(src##i, src##j, permA1M##i); \ + const vector unsigned char a_##j##_B##l = \ + vec_perm(a_##j##_A##l, src##k, permA2M##i); \ + const vector signed int a_##j##_sump##l = \ + (vector signed int)vec_msum(a_##j##_B##l, magic, \ + (vector unsigned int)zero); \ + vector signed int F_##j##_##l = \ + vec_sr(vec_sums(a_##j##_sump##l, vsint32_8), vuint32_4); \ + F_##j##_##l = vec_splat(F_##j##_##l, 3); \ + const vector signed int p_##j##_##l = \ + (vector signed int)vec_perm(src##j, \ + (vector unsigned char)zero, \ + extractPermM##i); \ + const vector signed int sum_##j##_##l = vec_add( p_##j##_##l, vQP2); \ + const vector signed int diff_##j##_##l = vec_sub( p_##j##_##l, vQP2); \ + vector signed int newpm_##j##_##l; \ + if (vec_all_lt(sum_##j##_##l, F_##j##_##l)) \ + newpm_##j##_##l = sum_##j##_##l; \ + else if (vec_all_gt(diff_##j##_##l, F_##j##_##l)) \ + newpm_##j##_##l = diff_##j##_##l; \ + else newpm_##j##_##l = F_##j##_##l; \ + const vector unsigned char newpm2_##j##_##l = \ + vec_splat((vector unsigned char)newpm_##j##_##l, 15); \ + const vector unsigned char mask##j##l = vec_add(identity, \ + tenRightM##i); \ + src##j = vec_perm(src##j, newpm2_##j##_##l, mask##j##l); \ + } \ + permA1M##i = vec_add(permA1M##i, permA1inc); \ + permA2M##i = vec_add(permA2M##i, permA2inc); \ + tenRightM##i = vec_sro(tenRightM##i, eightLeft); \ + extractPermM##i = vec_add(extractPermM##i, extractPermInc) + +#define ITER(i, j, k) \ + F_INIT(i); \ + 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) + + 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); + + const vector signed char neg1 = vec_splat_s8( -1 ); + +#define STORE_LINE(i) \ + const vector unsigned char permST##i = \ + vec_lvsr(i * stride, srcCopy); \ + const vector unsigned char maskST##i = \ + vec_perm((vector unsigned char)zero, \ + (vector unsigned char)neg1, permST##i); \ + src##i = vec_perm(src##i ,src##i, permST##i); \ + sA##i= vec_sel(sA##i, src##i, maskST##i); \ + sB##i= vec_sel(src##i, sB##i, maskST##i); \ + vec_st(sA##i, i * stride, srcCopy); \ + vec_st(sB##i, i * stride + 16, srcCopy) + + 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 horizClassify_altivec(a...) horizClassify_C(a) +#define doHorizLowPass_altivec(a...) doHorizLowPass_C(a) +#define doHorizDefFilter_altivec(a...) doHorizDefFilter_C(a) |