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FFmpeg/libavcodec/x86/blockdsp.asm
Andreas Rheinhardt ee551a21dd avcodec/x86/blockdsp: Remove obsolete MMX functions
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 these functions are truely ancient 32bit x86s
they are removed.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-06-22 13:33:41 +02:00

83 lines
2.4 KiB
NASM

;******************************************************************************
;* SIMD-optimized clear block functions
;* Copyright (c) 2002 Michael Niedermayer
;* Copyright (c) 2008 Loren Merritt
;* Copyright (c) 2009 Fiona Glaser
;*
;* AVX version by Jokyo Images
;*
;* This file is part of FFmpeg.
;*
;* FFmpeg is free software; you can redistribute it and/or
;* modify it under the terms of the GNU Lesser General Public
;* License as published by the Free Software Foundation; either
;* version 2.1 of the License, or (at your option) any later version.
;*
;* FFmpeg is distributed in the hope that it will be useful,
;* but WITHOUT ANY WARRANTY; without even the implied warranty of
;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;* Lesser General Public License for more details.
;*
;* You should have received a copy of the GNU Lesser General Public
;* License along with FFmpeg; if not, write to the Free Software
;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
;******************************************************************************
%include "libavutil/x86/x86util.asm"
SECTION .text
;----------------------------------------
; void ff_clear_block(int16_t *blocks);
;----------------------------------------
; %1 = number of xmm registers used
; %2 = number of inline store loops
%macro CLEAR_BLOCK 2
cglobal clear_block, 1, 1, %1, blocks
ZERO m0, m0, m0
%assign %%i 0
%rep %2
mova [blocksq+mmsize*(0+%%i)], m0
mova [blocksq+mmsize*(1+%%i)], m0
mova [blocksq+mmsize*(2+%%i)], m0
mova [blocksq+mmsize*(3+%%i)], m0
%assign %%i %%i+4
%endrep
RET
%endmacro
INIT_XMM sse
%define ZERO xorps
CLEAR_BLOCK 1, 2
INIT_YMM avx
CLEAR_BLOCK 1, 1
;-----------------------------------------
; void ff_clear_blocks(int16_t *blocks);
;-----------------------------------------
; %1 = number of xmm registers used
%macro CLEAR_BLOCKS 1
cglobal clear_blocks, 1, 2, %1, blocks, len
add blocksq, 768
mov lenq, -768
ZERO m0, m0, m0
.loop:
mova [blocksq+lenq+mmsize*0], m0
mova [blocksq+lenq+mmsize*1], m0
mova [blocksq+lenq+mmsize*2], m0
mova [blocksq+lenq+mmsize*3], m0
mova [blocksq+lenq+mmsize*4], m0
mova [blocksq+lenq+mmsize*5], m0
mova [blocksq+lenq+mmsize*6], m0
mova [blocksq+lenq+mmsize*7], m0
add lenq, mmsize*8
js .loop
RET
%endmacro
INIT_XMM sse
%define ZERO xorps
CLEAR_BLOCKS 1
INIT_YMM avx
CLEAR_BLOCKS 1