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168 lines
5.6 KiB
168 lines
5.6 KiB
;****************************************************************************** |
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;* SIMD optimized SBC encoder DSP functions |
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;* |
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;* Copyright (C) 2017 Aurelien Jacobs <aurel@gnuage.org> |
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;* Copyright (C) 2008-2010 Nokia Corporation |
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;* Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org> |
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;* Copyright (C) 2004-2005 Henryk Ploetz <henryk@ploetzli.ch> |
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;* Copyright (C) 2005-2006 Brad Midgley <bmidgley@xmission.com> |
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;* |
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;* This file is part of FFmpeg. |
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;* |
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;* FFmpeg is free software; you can redistribute it and/or |
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;* modify it under the terms of the GNU Lesser General Public |
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;* License as published by the Free Software Foundation; either |
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;* version 2.1 of the License, or (at your option) any later version. |
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;* |
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;* FFmpeg is distributed in the hope that it will be useful, |
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;* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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;* Lesser General Public License for more details. |
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;* |
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;* You should have received a copy of the GNU Lesser General Public |
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;* License along with FFmpeg; if not, write to the Free Software |
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;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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;****************************************************************************** |
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%include "libavutil/x86/x86util.asm" |
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SECTION_RODATA |
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scale_mask: times 2 dd 0x8000 ; 1 << (SBC_PROTO_FIXED_SCALE - 1) |
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SECTION .text |
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%macro NIDN 3 |
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%ifnidn %2, %3 |
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%1 %2, %3 |
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%endif |
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%endmacro |
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%macro ANALYZE_MAC 9 ; out1, out2, in1, in2, tmp1, tmp2, add1, add2, offset |
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NIDN movq, %5, %3 |
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NIDN movq, %6, %4 |
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pmaddwd %5, [constsq+%9] |
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pmaddwd %6, [constsq+%9+8] |
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NIDN paddd, %1, %7 |
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NIDN paddd, %2, %8 |
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%endmacro |
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%macro ANALYZE_MAC_IN 7 ; out1, out2, tmp1, tmp2, add1, add2, offset |
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ANALYZE_MAC %1, %2, [inq+%7], [inq+%7+8], %3, %4, %5, %6, %7 |
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%endmacro |
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%macro ANALYZE_MAC_REG 7 ; out1, out2, in, tmp1, tmp2, offset, pack |
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%ifidn %7, pack |
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psrad %3, 16 ; SBC_PROTO_FIXED_SCALE |
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packssdw %3, %3 |
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%endif |
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ANALYZE_MAC %1, %2, %3, %3, %4, %5, %4, %5, %6 |
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%endmacro |
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;******************************************************************* |
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;void ff_sbc_analyze_4(const int16_t *in, int32_t *out, const int16_t *consts); |
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;******************************************************************* |
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INIT_MMX mmx |
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cglobal sbc_analyze_4, 3, 3, 4, in, out, consts |
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ANALYZE_MAC_IN m0, m1, m0, m1, [scale_mask], [scale_mask], 0 |
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ANALYZE_MAC_IN m0, m1, m2, m3, m2, m3, 16 |
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ANALYZE_MAC_IN m0, m1, m2, m3, m2, m3, 32 |
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ANALYZE_MAC_IN m0, m1, m2, m3, m2, m3, 48 |
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ANALYZE_MAC_IN m0, m1, m2, m3, m2, m3, 64 |
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ANALYZE_MAC_REG m0, m2, m0, m0, m2, 80, pack |
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ANALYZE_MAC_REG m0, m2, m1, m1, m3, 96, pack |
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movq [outq ], m0 |
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movq [outq+8], m2 |
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RET |
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;******************************************************************* |
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;void ff_sbc_analyze_8(const int16_t *in, int32_t *out, const int16_t *consts); |
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;******************************************************************* |
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INIT_MMX mmx |
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cglobal sbc_analyze_8, 3, 3, 4, in, out, consts |
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ANALYZE_MAC_IN m0, m1, m0, m1, [scale_mask], [scale_mask], 0 |
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ANALYZE_MAC_IN m2, m3, m2, m3, [scale_mask], [scale_mask], 16 |
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ANALYZE_MAC_IN m0, m1, m4, m5, m4, m5, 32 |
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ANALYZE_MAC_IN m2, m3, m6, m7, m6, m7, 48 |
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ANALYZE_MAC_IN m0, m1, m4, m5, m4, m5, 64 |
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ANALYZE_MAC_IN m2, m3, m6, m7, m6, m7, 80 |
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ANALYZE_MAC_IN m0, m1, m4, m5, m4, m5, 96 |
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ANALYZE_MAC_IN m2, m3, m6, m7, m6, m7, 112 |
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ANALYZE_MAC_IN m0, m1, m4, m5, m4, m5, 128 |
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ANALYZE_MAC_IN m2, m3, m6, m7, m6, m7, 144 |
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ANALYZE_MAC_REG m4, m5, m0, m4, m5, 160, pack |
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ANALYZE_MAC_REG m4, m5, m1, m6, m7, 192, pack |
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ANALYZE_MAC_REG m4, m5, m2, m6, m7, 224, pack |
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ANALYZE_MAC_REG m4, m5, m3, m6, m7, 256, pack |
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movq [outq ], m4 |
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movq [outq+8], m5 |
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ANALYZE_MAC_REG m0, m5, m0, m0, m5, 176, no |
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ANALYZE_MAC_REG m0, m5, m1, m1, m7, 208, no |
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ANALYZE_MAC_REG m0, m5, m2, m2, m7, 240, no |
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ANALYZE_MAC_REG m0, m5, m3, m3, m7, 272, no |
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movq [outq+16], m0 |
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movq [outq+24], m5 |
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RET |
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;******************************************************************* |
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;void ff_sbc_calc_scalefactors(int32_t sb_sample_f[16][2][8], |
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; uint32_t scale_factor[2][8], |
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; int blocks, int channels, int subbands) |
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;******************************************************************* |
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INIT_MMX mmx |
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cglobal sbc_calc_scalefactors, 5, 7, 4, sb_sample_f, scale_factor, blocks, channels, subbands, ptr, blk |
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; subbands = 4 * subbands * channels |
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movq m3, [scale_mask] |
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shl subbandsd, 2 |
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cmp channelsd, 2 |
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jl .loop_1 |
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shl subbandsd, 1 |
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.loop_1: |
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sub subbandsq, 8 |
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lea ptrq, [sb_sample_fq + subbandsq] |
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; blk = (blocks - 1) * 64; |
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lea blkq, [blocksq - 1] |
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shl blkd, 6 |
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movq m0, m3 |
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.loop_2: |
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movq m1, [ptrq+blkq] |
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pxor m2, m2 |
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pcmpgtd m1, m2 |
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paddd m1, [ptrq+blkq] |
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pcmpgtd m2, m1 |
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pxor m1, m2 |
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por m0, m1 |
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sub blkq, 64 |
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jns .loop_2 |
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movd blkd, m0 |
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psrlq m0, 32 |
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bsr blkd, blkd |
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sub blkd, 15 ; SCALE_OUT_BITS |
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mov [scale_factorq + subbandsq], blkd |
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movd blkd, m0 |
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bsr blkd, blkd |
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sub blkd, 15 ; SCALE_OUT_BITS |
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mov [scale_factorq + subbandsq + 4], blkd |
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cmp subbandsq, 0 |
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jg .loop_1 |
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emms |
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RET
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