656 lines
16 KiB
NASM
656 lines
16 KiB
NASM
;******************************************************************************
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;* MMX optimized DSP utils
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;* Copyright (c) 2008 Loren Merritt
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;*
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;* This file is part of Libav.
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;*
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;* Libav 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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;* Libav 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 Libav; 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_RODATA
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pb_f: times 16 db 15
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pb_zzzzzzzz77777777: times 8 db -1
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pb_7: times 8 db 7
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pb_zzzz3333zzzzbbbb: db -1,-1,-1,-1,3,3,3,3,-1,-1,-1,-1,11,11,11,11
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pb_zz11zz55zz99zzdd: db -1,-1,1,1,-1,-1,5,5,-1,-1,9,9,-1,-1,13,13
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pb_revwords: SHUFFLE_MASK_W 7, 6, 5, 4, 3, 2, 1, 0
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pd_16384: times 4 dd 16384
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pb_bswap32: db 3, 2, 1, 0, 7, 6, 5, 4, 11, 10, 9, 8, 15, 14, 13, 12
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SECTION_TEXT
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%macro SCALARPRODUCT 0
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; int ff_scalarproduct_int16(int16_t *v1, int16_t *v2, int order)
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cglobal scalarproduct_int16, 3,3,3, v1, v2, order
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shl orderq, 1
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add v1q, orderq
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add v2q, orderq
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neg orderq
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pxor m2, m2
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.loop:
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movu m0, [v1q + orderq]
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movu m1, [v1q + orderq + mmsize]
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pmaddwd m0, [v2q + orderq]
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pmaddwd m1, [v2q + orderq + mmsize]
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paddd m2, m0
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paddd m2, m1
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add orderq, mmsize*2
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jl .loop
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%if mmsize == 16
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movhlps m0, m2
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paddd m2, m0
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pshuflw m0, m2, 0x4e
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%else
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pshufw m0, m2, 0x4e
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%endif
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paddd m2, m0
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movd eax, m2
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RET
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; int ff_scalarproduct_and_madd_int16(int16_t *v1, int16_t *v2, int16_t *v3,
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; int order, int mul)
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cglobal scalarproduct_and_madd_int16, 4,4,8, v1, v2, v3, order, mul
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shl orderq, 1
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movd m7, mulm
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%if mmsize == 16
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pshuflw m7, m7, 0
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punpcklqdq m7, m7
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%else
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pshufw m7, m7, 0
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%endif
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pxor m6, m6
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add v1q, orderq
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add v2q, orderq
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add v3q, orderq
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neg orderq
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.loop:
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movu m0, [v2q + orderq]
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movu m1, [v2q + orderq + mmsize]
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mova m4, [v1q + orderq]
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mova m5, [v1q + orderq + mmsize]
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movu m2, [v3q + orderq]
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movu m3, [v3q + orderq + mmsize]
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pmaddwd m0, m4
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pmaddwd m1, m5
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pmullw m2, m7
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pmullw m3, m7
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paddd m6, m0
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paddd m6, m1
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paddw m2, m4
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paddw m3, m5
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mova [v1q + orderq], m2
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mova [v1q + orderq + mmsize], m3
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add orderq, mmsize*2
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jl .loop
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%if mmsize == 16
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movhlps m0, m6
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paddd m6, m0
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pshuflw m0, m6, 0x4e
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%else
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pshufw m0, m6, 0x4e
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%endif
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paddd m6, m0
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movd eax, m6
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RET
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%endmacro
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INIT_MMX mmxext
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SCALARPRODUCT
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INIT_XMM sse2
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SCALARPRODUCT
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%macro SCALARPRODUCT_LOOP 1
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align 16
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.loop%1:
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sub orderq, mmsize*2
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%if %1
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mova m1, m4
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mova m4, [v2q + orderq]
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mova m0, [v2q + orderq + mmsize]
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palignr m1, m0, %1
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palignr m0, m4, %1
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mova m3, m5
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mova m5, [v3q + orderq]
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mova m2, [v3q + orderq + mmsize]
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palignr m3, m2, %1
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palignr m2, m5, %1
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%else
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mova m0, [v2q + orderq]
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mova m1, [v2q + orderq + mmsize]
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mova m2, [v3q + orderq]
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mova m3, [v3q + orderq + mmsize]
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%endif
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%define t0 [v1q + orderq]
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%define t1 [v1q + orderq + mmsize]
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%if ARCH_X86_64
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mova m8, t0
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mova m9, t1
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%define t0 m8
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%define t1 m9
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%endif
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pmaddwd m0, t0
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pmaddwd m1, t1
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pmullw m2, m7
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pmullw m3, m7
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paddw m2, t0
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paddw m3, t1
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paddd m6, m0
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paddd m6, m1
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mova [v1q + orderq], m2
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mova [v1q + orderq + mmsize], m3
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jg .loop%1
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%if %1
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jmp .end
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%endif
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%endmacro
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; int ff_scalarproduct_and_madd_int16(int16_t *v1, int16_t *v2, int16_t *v3,
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; int order, int mul)
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INIT_XMM ssse3
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cglobal scalarproduct_and_madd_int16, 4,5,10, v1, v2, v3, order, mul
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shl orderq, 1
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movd m7, mulm
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pshuflw m7, m7, 0
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punpcklqdq m7, m7
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pxor m6, m6
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mov r4d, v2d
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and r4d, 15
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and v2q, ~15
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and v3q, ~15
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mova m4, [v2q + orderq]
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mova m5, [v3q + orderq]
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; linear is faster than branch tree or jump table, because the branches taken are cyclic (i.e. predictable)
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cmp r4d, 0
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je .loop0
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cmp r4d, 2
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je .loop2
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cmp r4d, 4
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je .loop4
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cmp r4d, 6
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je .loop6
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cmp r4d, 8
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je .loop8
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cmp r4d, 10
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je .loop10
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cmp r4d, 12
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je .loop12
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SCALARPRODUCT_LOOP 14
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SCALARPRODUCT_LOOP 12
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SCALARPRODUCT_LOOP 10
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SCALARPRODUCT_LOOP 8
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SCALARPRODUCT_LOOP 6
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SCALARPRODUCT_LOOP 4
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SCALARPRODUCT_LOOP 2
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SCALARPRODUCT_LOOP 0
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.end:
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movhlps m0, m6
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paddd m6, m0
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pshuflw m0, m6, 0x4e
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paddd m6, m0
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movd eax, m6
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RET
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;-----------------------------------------------------------------------------
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; void ff_apply_window_int16(int16_t *output, const int16_t *input,
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; const int16_t *window, unsigned int len)
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;-----------------------------------------------------------------------------
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%macro REVERSE_WORDS 1-2
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%if cpuflag(ssse3) && notcpuflag(atom)
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pshufb %1, %2
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%elif cpuflag(sse2)
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pshuflw %1, %1, 0x1B
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pshufhw %1, %1, 0x1B
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pshufd %1, %1, 0x4E
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%elif cpuflag(mmxext)
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pshufw %1, %1, 0x1B
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%endif
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%endmacro
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%macro MUL16FIXED 3
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%if cpuflag(ssse3) ; dst, src, unused
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; dst = ((dst * src) + (1<<14)) >> 15
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pmulhrsw %1, %2
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%elif cpuflag(mmxext) ; dst, src, temp
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; dst = (dst * src) >> 15
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; pmulhw cuts off the bottom bit, so we have to lshift by 1 and add it back
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; in from the pmullw result.
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mova %3, %1
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pmulhw %1, %2
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pmullw %3, %2
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psrlw %3, 15
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psllw %1, 1
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por %1, %3
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%endif
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%endmacro
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%macro APPLY_WINDOW_INT16 1 ; %1 bitexact version
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%if %1
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cglobal apply_window_int16, 4,5,6, output, input, window, offset, offset2
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%else
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cglobal apply_window_int16_round, 4,5,6, output, input, window, offset, offset2
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%endif
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lea offset2q, [offsetq-mmsize]
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%if cpuflag(ssse3) && notcpuflag(atom)
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mova m5, [pb_revwords]
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ALIGN 16
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%elif %1
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mova m5, [pd_16384]
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%endif
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.loop:
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%if cpuflag(ssse3)
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; This version does the 16x16->16 multiplication in-place without expanding
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; to 32-bit. The ssse3 version is bit-identical.
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mova m0, [windowq+offset2q]
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mova m1, [ inputq+offset2q]
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pmulhrsw m1, m0
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REVERSE_WORDS m0, m5
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pmulhrsw m0, [ inputq+offsetq ]
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mova [outputq+offset2q], m1
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mova [outputq+offsetq ], m0
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%elif %1
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; This version expands 16-bit to 32-bit, multiplies by the window,
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; adds 16384 for rounding, right shifts 15, then repacks back to words to
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; save to the output. The window is reversed for the second half.
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mova m3, [windowq+offset2q]
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mova m4, [ inputq+offset2q]
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pxor m0, m0
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punpcklwd m0, m3
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punpcklwd m1, m4
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pmaddwd m0, m1
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paddd m0, m5
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psrad m0, 15
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pxor m2, m2
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punpckhwd m2, m3
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punpckhwd m1, m4
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pmaddwd m2, m1
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paddd m2, m5
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psrad m2, 15
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packssdw m0, m2
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mova [outputq+offset2q], m0
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REVERSE_WORDS m3
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mova m4, [ inputq+offsetq]
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pxor m0, m0
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punpcklwd m0, m3
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punpcklwd m1, m4
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pmaddwd m0, m1
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paddd m0, m5
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psrad m0, 15
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pxor m2, m2
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punpckhwd m2, m3
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punpckhwd m1, m4
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pmaddwd m2, m1
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paddd m2, m5
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psrad m2, 15
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packssdw m0, m2
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mova [outputq+offsetq], m0
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%else
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; This version does the 16x16->16 multiplication in-place without expanding
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; to 32-bit. The mmxext and sse2 versions do not use rounding, and
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; therefore are not bit-identical to the C version.
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mova m0, [windowq+offset2q]
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mova m1, [ inputq+offset2q]
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mova m2, [ inputq+offsetq ]
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MUL16FIXED m1, m0, m3
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REVERSE_WORDS m0
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MUL16FIXED m2, m0, m3
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mova [outputq+offset2q], m1
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mova [outputq+offsetq ], m2
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%endif
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add offsetd, mmsize
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sub offset2d, mmsize
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jae .loop
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REP_RET
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%endmacro
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INIT_MMX mmxext
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APPLY_WINDOW_INT16 0
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INIT_XMM sse2
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APPLY_WINDOW_INT16 0
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INIT_MMX mmxext
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APPLY_WINDOW_INT16 1
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INIT_XMM sse2
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APPLY_WINDOW_INT16 1
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INIT_XMM ssse3
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APPLY_WINDOW_INT16 1
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INIT_XMM ssse3, atom
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APPLY_WINDOW_INT16 1
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; void ff_add_hfyu_median_prediction_mmxext(uint8_t *dst, const uint8_t *top,
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; const uint8_t *diff, int w,
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; int *left, int *left_top)
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INIT_MMX mmxext
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cglobal add_hfyu_median_prediction, 6,6,0, dst, top, diff, w, left, left_top
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movq mm0, [topq]
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movq mm2, mm0
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movd mm4, [left_topq]
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psllq mm2, 8
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movq mm1, mm0
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por mm4, mm2
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movd mm3, [leftq]
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psubb mm0, mm4 ; t-tl
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add dstq, wq
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add topq, wq
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add diffq, wq
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neg wq
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jmp .skip
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.loop:
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movq mm4, [topq+wq]
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movq mm0, mm4
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psllq mm4, 8
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por mm4, mm1
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movq mm1, mm0 ; t
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psubb mm0, mm4 ; t-tl
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.skip:
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movq mm2, [diffq+wq]
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%assign i 0
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%rep 8
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movq mm4, mm0
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paddb mm4, mm3 ; t-tl+l
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movq mm5, mm3
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pmaxub mm3, mm1
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pminub mm5, mm1
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pminub mm3, mm4
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pmaxub mm3, mm5 ; median
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paddb mm3, mm2 ; +residual
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%if i==0
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movq mm7, mm3
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psllq mm7, 56
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%else
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movq mm6, mm3
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psrlq mm7, 8
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psllq mm6, 56
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por mm7, mm6
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%endif
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%if i<7
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psrlq mm0, 8
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psrlq mm1, 8
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psrlq mm2, 8
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%endif
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%assign i i+1
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%endrep
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movq [dstq+wq], mm7
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add wq, 8
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jl .loop
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movzx r2d, byte [dstq-1]
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mov [leftq], r2d
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movzx r2d, byte [topq-1]
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mov [left_topq], r2d
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RET
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%macro ADD_HFYU_LEFT_LOOP 2 ; %1 = dst_is_aligned, %2 = src_is_aligned
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add srcq, wq
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add dstq, wq
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neg wq
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%%.loop:
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%if %2
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mova m1, [srcq+wq]
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%else
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movu m1, [srcq+wq]
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%endif
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mova m2, m1
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psllw m1, 8
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paddb m1, m2
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mova m2, m1
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pshufb m1, m3
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paddb m1, m2
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pshufb m0, m5
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mova m2, m1
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pshufb m1, m4
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paddb m1, m2
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%if mmsize == 16
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mova m2, m1
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pshufb m1, m6
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paddb m1, m2
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%endif
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paddb m0, m1
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%if %1
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mova [dstq+wq], m0
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%else
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movq [dstq+wq], m0
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movhps [dstq+wq+8], m0
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%endif
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add wq, mmsize
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jl %%.loop
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mov eax, mmsize-1
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sub eax, wd
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movd m1, eax
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pshufb m0, m1
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movd eax, m0
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RET
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%endmacro
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; int ff_add_hfyu_left_prediction(uint8_t *dst, const uint8_t *src,
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; int w, int left)
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INIT_MMX ssse3
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cglobal add_hfyu_left_prediction, 3,3,7, dst, src, w, left
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.skip_prologue:
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mova m5, [pb_7]
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mova m4, [pb_zzzz3333zzzzbbbb]
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mova m3, [pb_zz11zz55zz99zzdd]
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movd m0, leftm
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psllq m0, 56
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ADD_HFYU_LEFT_LOOP 1, 1
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INIT_XMM sse4
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cglobal add_hfyu_left_prediction, 3,3,7, dst, src, w, left
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mova m5, [pb_f]
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mova m6, [pb_zzzzzzzz77777777]
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mova m4, [pb_zzzz3333zzzzbbbb]
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mova m3, [pb_zz11zz55zz99zzdd]
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movd m0, leftm
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pslldq m0, 15
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test srcq, 15
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jnz .src_unaligned
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test dstq, 15
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jnz .dst_unaligned
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ADD_HFYU_LEFT_LOOP 1, 1
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.dst_unaligned:
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ADD_HFYU_LEFT_LOOP 0, 1
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.src_unaligned:
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ADD_HFYU_LEFT_LOOP 0, 0
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;-----------------------------------------------------------------------------
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; void ff_vector_clip_int32(int32_t *dst, const int32_t *src, int32_t min,
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; int32_t max, unsigned int len)
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;-----------------------------------------------------------------------------
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; %1 = number of xmm registers used
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; %2 = number of inline load/process/store loops per asm loop
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; %3 = process 4*mmsize (%3=0) or 8*mmsize (%3=1) bytes per loop
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; %4 = CLIPD function takes min/max as float instead of int (CLIPD_SSE2)
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; %5 = suffix
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%macro VECTOR_CLIP_INT32 4-5
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cglobal vector_clip_int32%5, 5,5,%1, dst, src, min, max, len
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%if %4
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cvtsi2ss m4, minm
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cvtsi2ss m5, maxm
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%else
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movd m4, minm
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movd m5, maxm
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%endif
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SPLATD m4
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SPLATD m5
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.loop:
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%assign %%i 1
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%rep %2
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mova m0, [srcq+mmsize*0*%%i]
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mova m1, [srcq+mmsize*1*%%i]
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mova m2, [srcq+mmsize*2*%%i]
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mova m3, [srcq+mmsize*3*%%i]
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%if %3
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mova m7, [srcq+mmsize*4*%%i]
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mova m8, [srcq+mmsize*5*%%i]
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mova m9, [srcq+mmsize*6*%%i]
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mova m10, [srcq+mmsize*7*%%i]
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%endif
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CLIPD m0, m4, m5, m6
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CLIPD m1, m4, m5, m6
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CLIPD m2, m4, m5, m6
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CLIPD m3, m4, m5, m6
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%if %3
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CLIPD m7, m4, m5, m6
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CLIPD m8, m4, m5, m6
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CLIPD m9, m4, m5, m6
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CLIPD m10, m4, m5, m6
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%endif
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mova [dstq+mmsize*0*%%i], m0
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mova [dstq+mmsize*1*%%i], m1
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mova [dstq+mmsize*2*%%i], m2
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mova [dstq+mmsize*3*%%i], m3
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%if %3
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mova [dstq+mmsize*4*%%i], m7
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mova [dstq+mmsize*5*%%i], m8
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mova [dstq+mmsize*6*%%i], m9
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mova [dstq+mmsize*7*%%i], m10
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%endif
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%assign %%i %%i+1
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%endrep
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add srcq, mmsize*4*(%2+%3)
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add dstq, mmsize*4*(%2+%3)
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sub lend, mmsize*(%2+%3)
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jg .loop
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REP_RET
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%endmacro
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INIT_MMX mmx
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%define CLIPD CLIPD_MMX
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VECTOR_CLIP_INT32 0, 1, 0, 0
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INIT_XMM sse2
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VECTOR_CLIP_INT32 6, 1, 0, 0, _int
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%define CLIPD CLIPD_SSE2
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VECTOR_CLIP_INT32 6, 2, 0, 1
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INIT_XMM sse4
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%define CLIPD CLIPD_SSE41
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%ifdef m8
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VECTOR_CLIP_INT32 11, 1, 1, 0
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%else
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VECTOR_CLIP_INT32 6, 1, 0, 0
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%endif
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; %1 = aligned/unaligned
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%macro BSWAP_LOOPS 1
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mov r3, r2
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sar r2, 3
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jz .left4_%1
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.loop8_%1:
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mov%1 m0, [r1 + 0]
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mov%1 m1, [r1 + 16]
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%if cpuflag(ssse3)
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pshufb m0, m2
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pshufb m1, m2
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mov%1 [r0 + 0], m0
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mov%1 [r0 + 16], m1
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%else
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pshuflw m0, m0, 10110001b
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pshuflw m1, m1, 10110001b
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pshufhw m0, m0, 10110001b
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pshufhw m1, m1, 10110001b
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mova m2, m0
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mova m3, m1
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|
psllw m0, 8
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|
psllw m1, 8
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|
psrlw m2, 8
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|
psrlw m3, 8
|
|
por m2, m0
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|
por m3, m1
|
|
mov%1 [r0 + 0], m2
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|
mov%1 [r0 + 16], m3
|
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%endif
|
|
add r0, 32
|
|
add r1, 32
|
|
dec r2
|
|
jnz .loop8_%1
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|
.left4_%1:
|
|
mov r2, r3
|
|
and r3, 4
|
|
jz .left
|
|
mov%1 m0, [r1]
|
|
%if cpuflag(ssse3)
|
|
pshufb m0, m2
|
|
mov%1 [r0], m0
|
|
%else
|
|
pshuflw m0, m0, 10110001b
|
|
pshufhw m0, m0, 10110001b
|
|
mova m2, m0
|
|
psllw m0, 8
|
|
psrlw m2, 8
|
|
por m2, m0
|
|
mov%1 [r0], m2
|
|
%endif
|
|
add r1, 16
|
|
add r0, 16
|
|
%endmacro
|
|
|
|
; void ff_bswap_buf(uint32_t *dst, const uint32_t *src, int w);
|
|
%macro BSWAP32_BUF 0
|
|
%if cpuflag(ssse3)
|
|
cglobal bswap32_buf, 3,4,3
|
|
mov r3, r1
|
|
mova m2, [pb_bswap32]
|
|
%else
|
|
cglobal bswap32_buf, 3,4,5
|
|
mov r3, r1
|
|
%endif
|
|
and r3, 15
|
|
jz .start_align
|
|
BSWAP_LOOPS u
|
|
jmp .left
|
|
.start_align:
|
|
BSWAP_LOOPS a
|
|
.left:
|
|
%if cpuflag(ssse3)
|
|
mov r3, r2
|
|
and r2, 2
|
|
jz .left1
|
|
movq m0, [r1]
|
|
pshufb m0, m2
|
|
movq [r0], m0
|
|
add r1, 8
|
|
add r0, 8
|
|
.left1:
|
|
and r3, 1
|
|
jz .end
|
|
mov r2d, [r1]
|
|
bswap r2d
|
|
mov [r0], r2d
|
|
%else
|
|
and r2, 3
|
|
jz .end
|
|
.loop2:
|
|
mov r3d, [r1]
|
|
bswap r3d
|
|
mov [r0], r3d
|
|
add r1, 4
|
|
add r0, 4
|
|
dec r2
|
|
jnz .loop2
|
|
%endif
|
|
.end:
|
|
RET
|
|
%endmacro
|
|
|
|
INIT_XMM sse2
|
|
BSWAP32_BUF
|
|
|
|
INIT_XMM ssse3
|
|
BSWAP32_BUF
|