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76 lines
2.1 KiB
76 lines
2.1 KiB
;****************************************************************************** |
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;* SIMD-optimized HuffYUV functions |
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;* Copyright (c) 2008 Loren Merritt |
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;* Copyright (c) 2014 Christophe Gisquet |
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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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%macro INT16_LOOP 2 ; %1 = a/u (aligned/unaligned), %2 = add/sub |
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movd xm4, maskd |
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SPLATW m4, xm4 |
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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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