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9426a2f8ff
x64 always has MMX, MMXEXT, SSE and SSE2 and this means that some functions for MMX, MMXEXT and 3dnow are always overridden by other functions (unless one e.g. explicitly disables SSE2) for x64. So given that the only systems that benefit from ff_ssd_int8_vs_int16_mmx are truely ancient 32bit x86s it is removed. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
42 lines
1.4 KiB
NASM
42 lines
1.4 KiB
NASM
;******************************************************************************
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;* SIMD-optimized SVQ1 encoder functions
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;* Copyright (c) 2007 Loren Merritt
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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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SECTION .text
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INIT_XMM sse2
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cglobal ssd_int8_vs_int16, 3, 3, 3, pix1, pix2, size
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pxor m0, m0
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.loop:
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sub sizeq, 8
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movq m1, [pix1q + sizeq]
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mova m2, [pix2q + sizeq*2]
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punpcklbw m1, m1
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psraw m1, 8
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psubw m2, m1
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pmaddwd m2, m2
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paddd m0, m2
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jg .loop
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HADDD m0, m1
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movd eax, m0
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RET
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