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305 lines
8.1 KiB
305 lines
8.1 KiB
;****************************************************************************** |
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;* x86 optimized Format Conversion Utils |
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;* Copyright (c) 2008 Loren Merritt |
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;* Copyright (c) 2012 Justin Ruggles <justin.ruggles@gmail.com> |
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;* |
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;* This file is part of Libav. |
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;* |
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;* Libav 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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;* Libav 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 Libav; 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 "x86inc.asm" |
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%include "x86util.asm" |
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%include "util.asm" |
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SECTION_RODATA 32 |
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pf_s32_inv_scale: times 8 dd 0x30000000 |
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pf_s32_scale: times 8 dd 0x4f000000 |
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pf_s16_inv_scale: times 4 dd 0x38000000 |
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pf_s16_scale: times 4 dd 0x47000000 |
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SECTION_TEXT |
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;------------------------------------------------------------------------------ |
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; void ff_conv_s16_to_s32(int32_t *dst, const int16_t *src, int len); |
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;------------------------------------------------------------------------------ |
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INIT_XMM sse2 |
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cglobal conv_s16_to_s32, 3,3,3, dst, src, len |
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lea lenq, [2*lend] |
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lea dstq, [dstq+2*lenq] |
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add srcq, lenq |
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neg lenq |
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.loop: |
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mova m2, [srcq+lenq] |
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pxor m0, m0 |
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pxor m1, m1 |
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punpcklwd m0, m2 |
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punpckhwd m1, m2 |
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mova [dstq+2*lenq ], m0 |
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mova [dstq+2*lenq+mmsize], m1 |
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add lenq, mmsize |
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jl .loop |
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REP_RET |
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;------------------------------------------------------------------------------ |
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; void ff_conv_s16_to_flt(float *dst, const int16_t *src, int len); |
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;------------------------------------------------------------------------------ |
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%macro CONV_S16_TO_FLT 0 |
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cglobal conv_s16_to_flt, 3,3,3, dst, src, len |
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lea lenq, [2*lend] |
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add srcq, lenq |
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lea dstq, [dstq + 2*lenq] |
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neg lenq |
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mova m2, [pf_s16_inv_scale] |
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ALIGN 16 |
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.loop: |
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mova m0, [srcq+lenq] |
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S16_TO_S32_SX 0, 1 |
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cvtdq2ps m0, m0 |
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cvtdq2ps m1, m1 |
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mulps m0, m2 |
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mulps m1, m2 |
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mova [dstq+2*lenq ], m0 |
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mova [dstq+2*lenq+mmsize], m1 |
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add lenq, mmsize |
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jl .loop |
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REP_RET |
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%endmacro |
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INIT_XMM sse2 |
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CONV_S16_TO_FLT |
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INIT_XMM sse4 |
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CONV_S16_TO_FLT |
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;------------------------------------------------------------------------------ |
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; void ff_conv_s32_to_s16(int16_t *dst, const int32_t *src, int len); |
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;------------------------------------------------------------------------------ |
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%macro CONV_S32_TO_S16 0 |
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cglobal conv_s32_to_s16, 3,3,4, dst, src, len |
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lea lenq, [2*lend] |
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lea srcq, [srcq+2*lenq] |
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add dstq, lenq |
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neg lenq |
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.loop: |
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mova m0, [srcq+2*lenq ] |
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mova m1, [srcq+2*lenq+ mmsize] |
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mova m2, [srcq+2*lenq+2*mmsize] |
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mova m3, [srcq+2*lenq+3*mmsize] |
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psrad m0, 16 |
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psrad m1, 16 |
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psrad m2, 16 |
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psrad m3, 16 |
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packssdw m0, m1 |
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packssdw m2, m3 |
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mova [dstq+lenq ], m0 |
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mova [dstq+lenq+mmsize], m2 |
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add lenq, mmsize*2 |
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jl .loop |
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%if mmsize == 8 |
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emms |
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RET |
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%else |
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REP_RET |
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%endif |
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%endmacro |
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INIT_MMX mmx |
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CONV_S32_TO_S16 |
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INIT_XMM sse2 |
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CONV_S32_TO_S16 |
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;------------------------------------------------------------------------------ |
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; void ff_conv_s32_to_flt(float *dst, const int32_t *src, int len); |
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;------------------------------------------------------------------------------ |
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%macro CONV_S32_TO_FLT 0 |
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cglobal conv_s32_to_flt, 3,3,3, dst, src, len |
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lea lenq, [4*lend] |
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add srcq, lenq |
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add dstq, lenq |
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neg lenq |
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mova m0, [pf_s32_inv_scale] |
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ALIGN 16 |
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.loop: |
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cvtdq2ps m1, [srcq+lenq ] |
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cvtdq2ps m2, [srcq+lenq+mmsize] |
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mulps m1, m1, m0 |
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mulps m2, m2, m0 |
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mova [dstq+lenq ], m1 |
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mova [dstq+lenq+mmsize], m2 |
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add lenq, mmsize*2 |
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jl .loop |
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REP_RET |
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%endmacro |
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INIT_XMM sse2 |
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CONV_S32_TO_FLT |
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%if HAVE_AVX |
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INIT_YMM avx |
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CONV_S32_TO_FLT |
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%endif |
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;------------------------------------------------------------------------------ |
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; void ff_conv_flt_to_s16(int16_t *dst, const float *src, int len); |
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;------------------------------------------------------------------------------ |
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INIT_XMM sse2 |
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cglobal conv_flt_to_s16, 3,3,5, dst, src, len |
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lea lenq, [2*lend] |
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lea srcq, [srcq+2*lenq] |
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add dstq, lenq |
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neg lenq |
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mova m4, [pf_s16_scale] |
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.loop: |
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mova m0, [srcq+2*lenq ] |
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mova m1, [srcq+2*lenq+1*mmsize] |
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mova m2, [srcq+2*lenq+2*mmsize] |
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mova m3, [srcq+2*lenq+3*mmsize] |
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mulps m0, m4 |
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mulps m1, m4 |
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mulps m2, m4 |
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mulps m3, m4 |
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cvtps2dq m0, m0 |
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cvtps2dq m1, m1 |
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cvtps2dq m2, m2 |
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cvtps2dq m3, m3 |
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packssdw m0, m1 |
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packssdw m2, m3 |
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mova [dstq+lenq ], m0 |
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mova [dstq+lenq+mmsize], m2 |
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add lenq, mmsize*2 |
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jl .loop |
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REP_RET |
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;------------------------------------------------------------------------------ |
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; void ff_conv_flt_to_s32(int32_t *dst, const float *src, int len); |
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;------------------------------------------------------------------------------ |
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%macro CONV_FLT_TO_S32 0 |
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cglobal conv_flt_to_s32, 3,3,5, dst, src, len |
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lea lenq, [lend*4] |
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add srcq, lenq |
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add dstq, lenq |
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neg lenq |
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mova m4, [pf_s32_scale] |
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.loop: |
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mulps m0, m4, [srcq+lenq ] |
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mulps m1, m4, [srcq+lenq+1*mmsize] |
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mulps m2, m4, [srcq+lenq+2*mmsize] |
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mulps m3, m4, [srcq+lenq+3*mmsize] |
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cvtps2dq m0, m0 |
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cvtps2dq m1, m1 |
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cvtps2dq m2, m2 |
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cvtps2dq m3, m3 |
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mova [dstq+lenq ], m0 |
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mova [dstq+lenq+1*mmsize], m1 |
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mova [dstq+lenq+2*mmsize], m2 |
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mova [dstq+lenq+3*mmsize], m3 |
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add lenq, mmsize*4 |
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jl .loop |
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REP_RET |
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%endmacro |
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INIT_XMM sse2 |
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CONV_FLT_TO_S32 |
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%if HAVE_AVX |
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INIT_YMM avx |
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CONV_FLT_TO_S32 |
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%endif |
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;----------------------------------------------------------------------------- |
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; void ff_conv_fltp_to_flt_6ch(float *dst, float *const *src, int len, |
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; int channels); |
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;----------------------------------------------------------------------------- |
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%macro CONV_FLTP_TO_FLT_6CH 0 |
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cglobal conv_fltp_to_flt_6ch, 2,8,7, dst, src, src1, src2, src3, src4, src5, len |
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%if ARCH_X86_64 |
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mov lend, r2d |
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%else |
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%define lend dword r2m |
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%endif |
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mov src1q, [srcq+1*gprsize] |
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mov src2q, [srcq+2*gprsize] |
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mov src3q, [srcq+3*gprsize] |
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mov src4q, [srcq+4*gprsize] |
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mov src5q, [srcq+5*gprsize] |
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mov srcq, [srcq] |
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sub src1q, srcq |
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sub src2q, srcq |
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sub src3q, srcq |
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sub src4q, srcq |
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sub src5q, srcq |
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.loop: |
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mova m0, [srcq ] |
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mova m1, [srcq+src1q] |
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mova m2, [srcq+src2q] |
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mova m3, [srcq+src3q] |
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mova m4, [srcq+src4q] |
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mova m5, [srcq+src5q] |
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%if cpuflag(sse4) |
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SBUTTERFLYPS 0, 1, 6 |
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SBUTTERFLYPS 2, 3, 6 |
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SBUTTERFLYPS 4, 5, 6 |
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blendps m6, m4, m0, 1100b |
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movlhps m0, m2 |
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movhlps m4, m2 |
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blendps m2, m5, m1, 1100b |
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movlhps m1, m3 |
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movhlps m5, m3 |
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movaps [dstq ], m0 |
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movaps [dstq+16], m6 |
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movaps [dstq+32], m4 |
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movaps [dstq+48], m1 |
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movaps [dstq+64], m2 |
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movaps [dstq+80], m5 |
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%else ; mmx |
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SBUTTERFLY dq, 0, 1, 6 |
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SBUTTERFLY dq, 2, 3, 6 |
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SBUTTERFLY dq, 4, 5, 6 |
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movq [dstq ], m0 |
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movq [dstq+ 8], m2 |
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movq [dstq+16], m4 |
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movq [dstq+24], m1 |
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movq [dstq+32], m3 |
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movq [dstq+40], m5 |
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%endif |
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add srcq, mmsize |
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add dstq, mmsize*6 |
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sub lend, mmsize/4 |
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jg .loop |
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%if mmsize == 8 |
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emms |
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RET |
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%else |
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REP_RET |
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%endif |
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%endmacro |
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INIT_MMX mmx |
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CONV_FLTP_TO_FLT_6CH |
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INIT_XMM sse4 |
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CONV_FLTP_TO_FLT_6CH |
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%if HAVE_AVX |
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INIT_XMM avx |
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CONV_FLTP_TO_FLT_6CH |
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%endif
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