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143 lines
3.8 KiB
143 lines
3.8 KiB
;************************************************************************ |
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;* SIMD-optimized HuffYUV encoding functions |
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;* Copyright (c) 2000, 2001 Fabrice Bellard |
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;* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at> |
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;* |
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;* MMX optimization by Nick Kurshev <nickols_k@mail.ru> |
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;* Conversion to NASM format by Tiancheng "Timothy" Gu <timothygu99@gmail.com> |
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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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;* 51, Inc., Foundation 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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section .text |
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; void ff_diff_int16(uint8_t *dst, const uint8_t *src1, const uint8_t *src2, |
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; unsigned mask, int w); |
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%macro INT16_LOOP 2 ; %1 = a/u (aligned/unaligned), %2 = add/sub |
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movd m4, maskd |
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SPLATW m4, m4 |
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add wd, wd |
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test wq, 2*mmsize - 1 |
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jz %%.tomainloop |
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push tmpq |
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%%.wordloop: |
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sub wq, 2 |
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%ifidn %2, add |
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mov tmpw, [srcq+wq] |
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add tmpw, [dstq+wq] |
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%else |
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mov tmpw, [src1q+wq] |
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sub tmpw, [src2q+wq] |
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%endif |
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and tmpw, maskw |
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mov [dstq+wq], tmpw |
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test wq, 2*mmsize - 1 |
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jnz %%.wordloop |
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pop tmpq |
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%%.tomainloop: |
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%ifidn %2, add |
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add srcq, wq |
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%else |
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add src1q, wq |
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add src2q, wq |
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%endif |
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add dstq, wq |
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neg wq |
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jz %%.end |
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%%.loop: |
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%ifidn %2, add |
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mov%1 m0, [srcq+wq] |
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mov%1 m1, [dstq+wq] |
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mov%1 m2, [srcq+wq+mmsize] |
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mov%1 m3, [dstq+wq+mmsize] |
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%else |
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mov%1 m0, [src1q+wq] |
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mov%1 m1, [src2q+wq] |
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mov%1 m2, [src1q+wq+mmsize] |
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mov%1 m3, [src2q+wq+mmsize] |
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%endif |
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p%2w m0, m1 |
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p%2w m2, m3 |
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pand m0, m4 |
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pand m2, m4 |
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mov%1 [dstq+wq] , m0 |
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mov%1 [dstq+wq+mmsize], m2 |
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add wq, 2*mmsize |
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jl %%.loop |
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%%.end: |
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RET |
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%endmacro |
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%if ARCH_X86_32 |
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INIT_MMX mmx |
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cglobal diff_int16, 5,5,5, dst, src1, src2, mask, w, tmp |
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INT16_LOOP a, sub |
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%endif |
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INIT_XMM sse2 |
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cglobal diff_int16, 5,5,5, dst, src1, src2, mask, w, tmp |
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test src1q, mmsize-1 |
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jnz .unaligned |
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test src2q, mmsize-1 |
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jnz .unaligned |
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test dstq, mmsize-1 |
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jnz .unaligned |
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INT16_LOOP a, sub |
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.unaligned: |
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INT16_LOOP u, sub |
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INIT_MMX mmxext |
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cglobal sub_hfyu_median_pred_int16, 7,7,0, dst, src1, src2, mask, w, left, left_top |
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add wd, wd |
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movd mm7, maskd |
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SPLATW mm7, mm7 |
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movq mm0, [src1q] |
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movq mm2, [src2q] |
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psllq mm0, 16 |
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psllq mm2, 16 |
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movd mm6, [left_topq] |
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por mm0, mm6 |
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movd mm6, [leftq] |
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por mm2, mm6 |
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xor maskq, maskq |
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.loop: |
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movq mm1, [src1q + maskq] |
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movq mm3, [src2q + maskq] |
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movq mm4, mm2 |
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psubw mm2, mm0 |
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paddw mm2, mm1 |
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pand mm2, mm7 |
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movq mm5, mm4 |
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pmaxsw mm4, mm1 |
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pminsw mm1, mm5 |
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pminsw mm4, mm2 |
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pmaxsw mm4, mm1 |
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psubw mm3, mm4 |
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pand mm3, mm7 |
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movq [dstq + maskq], mm3 |
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add maskq, 8 |
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movq mm0, [src1q + maskq - 2] |
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movq mm2, [src2q + maskq - 2] |
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cmp maskq, wq |
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jb .loop |
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movzx maskd, word [src1q + wq - 2] |
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mov [left_topq], maskd |
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movzx maskd, word [src2q + wq - 2] |
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mov [leftq], maskd |
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RET
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