diff options
Diffstat (limited to 'ffmpeg/libavresample/x86/dither.asm')
| -rw-r--r-- | ffmpeg/libavresample/x86/dither.asm | 117 |
1 files changed, 0 insertions, 117 deletions
diff --git a/ffmpeg/libavresample/x86/dither.asm b/ffmpeg/libavresample/x86/dither.asm deleted file mode 100644 index 757f280..0000000 --- a/ffmpeg/libavresample/x86/dither.asm +++ /dev/null @@ -1,117 +0,0 @@ -;****************************************************************************** -;* x86 optimized dithering format conversion -;* Copyright (c) 2012 Justin Ruggles <justin.ruggles@gmail.com> -;* -;* This file is part of FFmpeg. -;* -;* FFmpeg is free software; you can redistribute it and/or -;* modify it under the terms of the GNU Lesser General Public -;* License as published by the Free Software Foundation; either -;* version 2.1 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 -;* Lesser General Public License for more details. -;* -;* You should have received a copy of the GNU Lesser 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/x86/x86util.asm" - -SECTION_RODATA 32 - -; 1.0f / (2.0f * INT32_MAX) -pf_dither_scale: times 8 dd 2.32830643762e-10 - -pf_s16_scale: times 4 dd 32753.0 - -SECTION_TEXT - -;------------------------------------------------------------------------------ -; void ff_quantize(int16_t *dst, float *src, float *dither, int len); -;------------------------------------------------------------------------------ - -INIT_XMM sse2 -cglobal quantize, 4,4,3, dst, src, dither, len - lea lenq, [2*lend] - add dstq, lenq - lea srcq, [srcq+2*lenq] - lea ditherq, [ditherq+2*lenq] - neg lenq - mova m2, [pf_s16_scale] -.loop: - mulps m0, m2, [srcq+2*lenq] - mulps m1, m2, [srcq+2*lenq+mmsize] - addps m0, [ditherq+2*lenq] - addps m1, [ditherq+2*lenq+mmsize] - cvtps2dq m0, m0 - cvtps2dq m1, m1 - packssdw m0, m1 - mova [dstq+lenq], m0 - add lenq, mmsize - jl .loop - REP_RET - -;------------------------------------------------------------------------------ -; void ff_dither_int_to_float_rectangular(float *dst, int *src, int len) -;------------------------------------------------------------------------------ - -%macro DITHER_INT_TO_FLOAT_RECTANGULAR 0 -cglobal dither_int_to_float_rectangular, 3,3,3, dst, src, len - lea lenq, [4*lend] - add srcq, lenq - add dstq, lenq - neg lenq - mova m0, [pf_dither_scale] -.loop: - cvtdq2ps m1, [srcq+lenq] - cvtdq2ps m2, [srcq+lenq+mmsize] - mulps m1, m1, m0 - mulps m2, m2, m0 - mova [dstq+lenq], m1 - mova [dstq+lenq+mmsize], m2 - add lenq, 2*mmsize - jl .loop - REP_RET -%endmacro - -INIT_XMM sse2 -DITHER_INT_TO_FLOAT_RECTANGULAR -INIT_YMM avx -DITHER_INT_TO_FLOAT_RECTANGULAR - -;------------------------------------------------------------------------------ -; void ff_dither_int_to_float_triangular(float *dst, int *src0, int len) -;------------------------------------------------------------------------------ - -%macro DITHER_INT_TO_FLOAT_TRIANGULAR 0 -cglobal dither_int_to_float_triangular, 3,4,5, dst, src0, len, src1 - lea lenq, [4*lend] - lea src1q, [src0q+2*lenq] - add src0q, lenq - add dstq, lenq - neg lenq - mova m0, [pf_dither_scale] -.loop: - cvtdq2ps m1, [src0q+lenq] - cvtdq2ps m2, [src0q+lenq+mmsize] - cvtdq2ps m3, [src1q+lenq] - cvtdq2ps m4, [src1q+lenq+mmsize] - addps m1, m1, m3 - addps m2, m2, m4 - mulps m1, m1, m0 - mulps m2, m2, m0 - mova [dstq+lenq], m1 - mova [dstq+lenq+mmsize], m2 - add lenq, 2*mmsize - jl .loop - REP_RET -%endmacro - -INIT_XMM sse2 -DITHER_INT_TO_FLOAT_TRIANGULAR -INIT_YMM avx -DITHER_INT_TO_FLOAT_TRIANGULAR |