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Diffstat (limited to 'libavcodec/x86/exrdsp.asm')
| -rw-r--r-- | libavcodec/x86/exrdsp.asm | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/libavcodec/x86/exrdsp.asm b/libavcodec/x86/exrdsp.asm new file mode 100644 index 0000000..3bf240c --- /dev/null +++ b/libavcodec/x86/exrdsp.asm @@ -0,0 +1,118 @@ +;****************************************************************************** +;* X86 Optimized functions for Open Exr Decoder +;* Copyright (c) 2006 Industrial Light & Magic, a division of Lucas Digital Ltd. LLC +;* +;* reorder_pixels, predictor based on patch by John Loy +;* port to ASM by Jokyo Images support by CNC - French National Center for Cinema +;* +;* predictor AVX/AVX2 by Henrik Gramner +;* +;* 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" + +cextern pb_15 +cextern pb_80 + +SECTION .text + +;------------------------------------------------------------------------------ +; void ff_reorder_pixels(uint8_t *dst, const uint8_t *src, ptrdiff_t size); +;------------------------------------------------------------------------------ + +%macro REORDER_PIXELS 0 +cglobal reorder_pixels, 3,4,3, dst, src1, 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: + + mova m0, [src1q+sizeq] ; load first part + movu m1, [src2q+sizeq] ; load second part + SBUTTERFLY bw, 0, 1, 2 ; interleaved + mova [dstq+2*sizeq ], xm0 ; copy to dst + mova [dstq+2*sizeq+16], xm1 +%if cpuflag(avx2) + vperm2i128 m0, m0, m1, q0301 + mova [dstq+2*sizeq+32], m0 +%endif + add sizeq, mmsize + jl .loop + RET +%endmacro + +INIT_XMM sse2 +REORDER_PIXELS + +%if HAVE_AVX2_EXTERNAL +INIT_YMM avx2 +REORDER_PIXELS +%endif + + +;------------------------------------------------------------------------------ +; void ff_predictor(uint8_t *src, ptrdiff_t size); +;------------------------------------------------------------------------------ + +%macro PREDICTOR 0 +cglobal predictor, 2,2,5, src, size + mova m0, [pb_80] + mova xm1, [pb_15] + mova xm2, xm0 + add srcq, sizeq + neg sizeq +.loop: + pxor m3, m0, [srcq + sizeq] + pslldq m4, m3, 1 + paddb m3, m4 + pslldq m4, m3, 2 + paddb m3, m4 + pslldq m4, m3, 4 + paddb m3, m4 + pslldq m4, m3, 8 +%if mmsize == 32 + paddb m3, m4 + paddb xm2, xm3 + vextracti128 xm4, m3, 1 + mova [srcq + sizeq], xm2 + pshufb xm2, xm1 + paddb xm2, xm4 + mova [srcq + sizeq + 16], xm2 +%else + paddb m2, m3 + paddb m2, m4 + mova [srcq + sizeq], m2 +%endif + pshufb xm2, xm1 + add sizeq, mmsize + jl .loop + RET +%endmacro + +INIT_XMM ssse3 +PREDICTOR + +INIT_XMM avx +PREDICTOR + +%if HAVE_AVX2_EXTERNAL +INIT_YMM avx2 +PREDICTOR +%endif |
