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| author | Martin Vignali <martin.vignali@gmail.com> | 2017-09-17 21:59:41 +0200 |
|---|---|---|
| committer | James Almer <jamrial@gmail.com> | 2017-09-17 17:53:57 -0300 |
| commit | 9b8c1224d7e1804b0b750de11e6a8c4648f1e115 (patch) | |
| tree | badd352b0822660a1172da30088ad545a530c0c5 /libavcodec/x86/exrdsp.asm | |
| parent | 08ec828de9663e46fbfe8feef5c15253f841c687 (diff) | |
| download | ffmpeg-9b8c1224d7e1804b0b750de11e6a8c4648f1e115.tar.gz | |
libavcodec/exr : add X86 SIMD for reorder_pixels
Signed-off-by: James Almer <jamrial@gmail.com>
Diffstat (limited to 'libavcodec/x86/exrdsp.asm')
| -rw-r--r-- | libavcodec/x86/exrdsp.asm | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/libavcodec/x86/exrdsp.asm b/libavcodec/x86/exrdsp.asm new file mode 100644 index 0000000000..91d9c0b0a7 --- /dev/null +++ b/libavcodec/x86/exrdsp.asm @@ -0,0 +1,63 @@ +;****************************************************************************** +;* X86 Optimized functions for Open Exr Decoder +;* Copyright (c) 2006 Industrial Light & Magic, a division of Lucas Digital Ltd. LLC +;* +;* reorder_pixels based on patch by John Loy +;* port to ASM by Jokyo Images support by CNC - French National Center for Cinema +;* +;* 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 .text + +;------------------------------------------------------------------------------ +; void ff_reorder_pixels(uint8_t *src, uint8_t *dst, ptrdiff_t size) +;------------------------------------------------------------------------------ + +%macro REORDER_PIXELS 0 +cglobal reorder_pixels, 3,4,3, src1, dst, size, src2 + lea src2q, [src1q+sizeq] ; src2 = src + 2 * half_size + add dstq, sizeq ; dst offset by size + shr sizeq, 1 ; half_size + add src1q, sizeq ; offset src by half_size + neg sizeq ; size = offset for dst, src1, src2 +.loop: + +%if cpuflag(avx2) + vpermq m0, [src1q + sizeq], 0xd8; load first part + vpermq m1, [src2q + sizeq], 0xd8; load second part +%else + mova m0, [src1q+sizeq] ; load first part + movu m1, [src2q+sizeq] ; load second part +%endif + SBUTTERFLY bw, 0, 1, 2 ; interleaved + mova [dstq+2*sizeq ], m0 ; copy to dst + mova [dstq+2*sizeq+mmsize], m1 + add sizeq, mmsize + jl .loop + RET +%endmacro + +INIT_XMM sse2 +REORDER_PIXELS + +%if HAVE_AVX2_EXTERNAL +INIT_YMM avx2 +REORDER_PIXELS +%endif |