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https://github.com/FFmpeg/FFmpeg.git
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a172d80703
Since 7cad4dba50
averaging functions only exist for MMXEXT and SSE2.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
80 lines
2.2 KiB
NASM
80 lines
2.2 KiB
NASM
;******************************************************************************
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;* SIMD-optimized fullpel functions
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;* Copyright (c) 2008 Loren Merritt
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;* Copyright (c) 2003-2013 Michael Niedermayer
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;* Copyright (c) 2013 Daniel Kang
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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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; void ff_put/avg_pixels(uint8_t *block, const uint8_t *pixels,
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; ptrdiff_t line_size, int h)
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%macro OP_PIXELS 2
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%if %2 == mmsize/2
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%define LOAD movh
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%define SAVE movh
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%define LEN mmsize
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%else
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%define LOAD movu
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%define SAVE mova
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%define LEN %2
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%endif
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cglobal %1_pixels%2, 4,5,4
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lea r4, [r2*3]
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.loop:
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%assign %%i 0
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%rep LEN/mmsize
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LOAD m0, [r1 + %%i]
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LOAD m1, [r1+r2 + %%i]
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LOAD m2, [r1+r2*2 + %%i]
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LOAD m3, [r1+r4 + %%i]
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%ifidn %1, avg
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pavgb m0, [r0 + %%i]
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pavgb m1, [r0+r2 + %%i]
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pavgb m2, [r0+r2*2 + %%i]
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pavgb m3, [r0+r4 + %%i]
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%endif
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SAVE [r0 + %%i], m0
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SAVE [r0+r2 + %%i], m1
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SAVE [r0+r2*2 + %%i], m2
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SAVE [r0+r4 + %%i], m3
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%assign %%i %%i+mmsize
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%endrep
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sub r3d, 4
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lea r1, [r1+r2*4]
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lea r0, [r0+r2*4]
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jne .loop
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RET
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%endmacro
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INIT_MMX mmx
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OP_PIXELS put, 8
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OP_PIXELS put, 16
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INIT_MMX mmxext
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OP_PIXELS avg, 4
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OP_PIXELS avg, 8
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OP_PIXELS avg, 16
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INIT_XMM sse2
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OP_PIXELS put, 16
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OP_PIXELS avg, 16
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