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118 lines
3.8 KiB
118 lines
3.8 KiB
;****************************************************************************** |
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;* X86 Optimized functions for Open Exr Decoder |
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;* Copyright (c) 2006 Industrial Light & Magic, a division of Lucas Digital Ltd. LLC |
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;* |
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;* reorder_pixels, predictor based on patch by John Loy |
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;* port to ASM by Jokyo Images support by CNC - French National Center for Cinema |
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;* |
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;* predictor AVX/AVX2 by Henrik Gramner |
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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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cextern pb_15 |
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cextern pb_80 |
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SECTION .text |
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;------------------------------------------------------------------------------ |
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; void ff_reorder_pixels(uint8_t *dst, const uint8_t *src, ptrdiff_t size); |
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;------------------------------------------------------------------------------ |
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%macro REORDER_PIXELS 0 |
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cglobal reorder_pixels, 3,4,3, dst, src1, size, src2 |
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lea src2q, [src1q+sizeq] ; src2 = src + 2 * half_size |
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add dstq, sizeq ; dst offset by size |
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shr sizeq, 1 ; half_size |
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add src1q, sizeq ; offset src by half_size |
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neg sizeq ; size = offset for dst, src1, src2 |
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.loop: |
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mova m0, [src1q+sizeq] ; load first part |
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movu m1, [src2q+sizeq] ; load second part |
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SBUTTERFLY bw, 0, 1, 2 ; interleaved |
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mova [dstq+2*sizeq ], xm0 ; copy to dst |
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mova [dstq+2*sizeq+16], xm1 |
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%if cpuflag(avx2) |
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vperm2i128 m0, m0, m1, q0301 |
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mova [dstq+2*sizeq+32], m0 |
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%endif |
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add sizeq, mmsize |
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jl .loop |
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RET |
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%endmacro |
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INIT_XMM sse2 |
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REORDER_PIXELS |
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%if HAVE_AVX2_EXTERNAL |
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INIT_YMM avx2 |
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REORDER_PIXELS |
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%endif |
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;------------------------------------------------------------------------------ |
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; void ff_predictor(uint8_t *src, ptrdiff_t size); |
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;------------------------------------------------------------------------------ |
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%macro PREDICTOR 0 |
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cglobal predictor, 2,2,5, src, size |
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mova m0, [pb_80] |
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mova xm1, [pb_15] |
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mova xm2, xm0 |
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add srcq, sizeq |
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neg sizeq |
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.loop: |
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pxor m3, m0, [srcq + sizeq] |
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pslldq m4, m3, 1 |
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paddb m3, m4 |
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pslldq m4, m3, 2 |
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paddb m3, m4 |
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pslldq m4, m3, 4 |
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paddb m3, m4 |
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pslldq m4, m3, 8 |
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%if mmsize == 32 |
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paddb m3, m4 |
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paddb xm2, xm3 |
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vextracti128 xm4, m3, 1 |
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mova [srcq + sizeq], xm2 |
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pshufb xm2, xm1 |
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paddb xm2, xm4 |
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mova [srcq + sizeq + 16], xm2 |
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%else |
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paddb m2, m3 |
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paddb m2, m4 |
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mova [srcq + sizeq], m2 |
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%endif |
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pshufb xm2, xm1 |
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add sizeq, mmsize |
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jl .loop |
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RET |
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%endmacro |
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INIT_XMM ssse3 |
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PREDICTOR |
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INIT_XMM avx |
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PREDICTOR |
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%if HAVE_AVX2_EXTERNAL |
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INIT_YMM avx2 |
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PREDICTOR |
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%endif
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