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167 lines
4.1 KiB
167 lines
4.1 KiB
;****************************************************************************** |
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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 .text |
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%macro SCALARPRODUCT 0 |
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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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