mirror of https://git.ffmpeg.org/ffmpeg.git
179 lines
4.1 KiB
NASM
179 lines
4.1 KiB
NASM
;*****************************************************************************
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;* x86-optimized functions for pullup filter
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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 modify
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;* it under the terms of the GNU General Public License as published by
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;* the Free Software Foundation; either version 2 of the License, or
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;* (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
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;* GNU General Public License for more details.
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;*
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;* You should have received a copy of the GNU General Public License along
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;* with FFmpeg; if not, write to the Free Software Foundation, Inc.,
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;* 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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SECTION_TEXT
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INIT_MMX mmx
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cglobal pullup_filter_diff, 3, 5, 8, first, second, size
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mov r3, 4
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pxor m4, m4
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pxor m7, m7
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.loop:
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movq m0, [firstq]
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movq m2, [firstq]
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add firstq, sizeq
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movq m1, [secondq]
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add secondq, sizeq
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psubusb m2, m1
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psubusb m1, m0
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movq m0, m2
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movq m3, m1
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punpcklbw m0, m7
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punpcklbw m1, m7
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punpckhbw m2, m7
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punpckhbw m3, m7
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paddw m4, m0
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paddw m4, m1
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paddw m4, m2
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paddw m4, m3
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dec r3
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jnz .loop
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movq m3, m4
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punpcklwd m4, m7
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punpckhwd m3, m7
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paddd m3, m4
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movd eax, m3
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psrlq m3, 32
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movd r4, m3
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add eax, r4
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RET
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INIT_MMX mmx
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cglobal pullup_filter_comb, 3, 5, 8, first, second, size
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mov r3, 4
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pxor m6, m6
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pxor m7, m7
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sub secondq, sizeq
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.loop:
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movq m0, [secondq]
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movq m1, [secondq]
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punpcklbw m0, m7
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movq m2, [secondq+sizeq]
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punpcklbw m1, m7
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punpcklbw m2, m7
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paddw m0, m0
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paddw m1, m2
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movq m2, m0
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psubusw m0, m1
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psubusw m1, m2
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paddw m6, m0
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paddw m6, m1
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movq m0, [firstq]
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movq m1, [secondq]
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punpckhbw m0, m7
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movq m2, [secondq+sizeq]
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punpckhbw m1, m7
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punpckhbw m2, m7
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paddw m0, m0
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paddw m1, m2
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movq m2, m0
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psubusw m0, m1
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psubusw m1, m2
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paddw m6, m0
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paddw m6, m1
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movq m0, [secondq+sizeq]
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movq m1, [firstq]
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punpcklbw m0, m7
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movq m2, [firstq+sizeq]
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punpcklbw m1, m7
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punpcklbw m2, m7
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paddw m0, m0
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paddw m1, m2
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movq m2, m0
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psubusw m0, m1
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psubusw m1, m2
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paddw m6, m0
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paddw m6, m1
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movq m0, [secondq+sizeq]
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movq m1, [firstq]
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punpckhbw m0, m7
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movq m2, [firstq+sizeq]
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punpckhbw m1, m7
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punpckhbw m2, m7
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paddw m0, m0
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paddw m1, m2
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movq m2, m0
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psubusw m0, m1
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psubusw m1, m2
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paddw m6, m0
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paddw m6, m1
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add firstq, sizeq
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add secondq, sizeq
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dec r3
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jnz .loop
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movq m5, m6
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punpcklwd m6, m7
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punpckhwd m5, m7
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paddd m5, m6
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movd eax, m5
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psrlq m5, 32
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movd r4, m5
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add eax, r4
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RET
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INIT_MMX mmx
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cglobal pullup_filter_var, 3, 5, 8, first, second, size
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mov r3, 3
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pxor m4, m4
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pxor m7, m7
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.loop:
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movq m0, [firstq]
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movq m2, [firstq]
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movq m1, [firstq+sizeq]
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add firstq, sizeq
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psubusb m2, m1
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psubusb m1, m0
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movq m0, m2
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movq m3, m1
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punpcklbw m0, m7
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punpcklbw m1, m7
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punpckhbw m2, m7
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punpckhbw m3, m7
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paddw m4, m0
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paddw m4, m1
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paddw m4, m2
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paddw m4, m3
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dec r3
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jnz .loop
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movq m3, m4
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punpcklwd m4, m7
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punpckhwd m3, m7
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paddd m3, m4
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movd eax, m3
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psrlq m3, 32
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movd r4, m3
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add eax, r4
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shl eax, 2
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RET
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