aac5773f
 hucm
功能基本完成，接口待打磨
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;*****************************************************************************
;* SIMD-optimized pixel operations
;*****************************************************************************
;* Copyright (c) 2000, 2001 Fabrice Bellard
;* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
;*
;* 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
INIT_MMX mmx
; void ff_get_pixels_mmx(int16_t *block, const uint8_t *pixels, ptrdiff_t stride)
cglobal get_pixels, 3,4
add r0, 128
mov r3, -128
pxor m7, m7
.loop:
mova m0, [r1]
mova m2, [r1+r2]
mova m1, m0
mova m3, m2
punpcklbw m0, m7
punpckhbw m1, m7
punpcklbw m2, m7
punpckhbw m3, m7
mova [r0+r3+ 0], m0
mova [r0+r3+ 8], m1
mova [r0+r3+16], m2
mova [r0+r3+24], m3
lea r1, [r1+r2*2]
add r3, 32
js .loop
REP_RET
INIT_XMM sse2
cglobal get_pixels, 3, 4, 5
lea r3, [r2*3]
pxor m4, m4
movh m0, [r1]
movh m1, [r1+r2]
movh m2, [r1+r2*2]
movh m3, [r1+r3]
lea r1, [r1+r2*4]
punpcklbw m0, m4
punpcklbw m1, m4
punpcklbw m2, m4
punpcklbw m3, m4
mova [r0], m0
mova [r0+0x10], m1
mova [r0+0x20], m2
mova [r0+0x30], m3
movh m0, [r1]
movh m1, [r1+r2*1]
movh m2, [r1+r2*2]
movh m3, [r1+r3]
punpcklbw m0, m4
punpcklbw m1, m4
punpcklbw m2, m4
punpcklbw m3, m4
mova [r0+0x40], m0
mova [r0+0x50], m1
mova [r0+0x60], m2
mova [r0+0x70], m3
RET
; void ff_diff_pixels_mmx(int16_t *block, const uint8_t *s1, const uint8_t *s2,
; ptrdiff_t stride);
%macro DIFF_PIXELS 0
cglobal diff_pixels, 4,5,5
pxor m4, m4
add r0, 128
mov r4, -128
.loop:
movq m0, [r1]
movq m2, [r2]
%if mmsize == 8
movq m1, m0
movq m3, m2
punpcklbw m0, m4
punpckhbw m1, m4
punpcklbw m2, m4
punpckhbw m3, m4
%else
movq m1, [r1+r3]
movq m3, [r2+r3]
punpcklbw m0, m4
punpcklbw m1, m4
punpcklbw m2, m4
punpcklbw m3, m4
%endif
psubw m0, m2
psubw m1, m3
mova [r0+r4+0], m0
mova [r0+r4+mmsize], m1
%if mmsize == 8
add r1, r3
add r2, r3
%else
lea r1, [r1+r3*2]
lea r2, [r2+r3*2]
%endif
add r4, 2 * mmsize
jne .loop
RET
%endmacro
INIT_MMX mmx
DIFF_PIXELS
INIT_XMM sse2
DIFF_PIXELS
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