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libavutil/arm/float_dsp_neon.S
271 строка
10 KB
Thilo Borgmann
Reinstate proper FFmpeg license for all files.
30 авг 2013, 19:47
30 авг 2013, 19:47
d814a83
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/* * ARM NEON optimised Float DSP functions * Copyright (c) 2008 Mans Rullgard <mans@mansr.com> * * 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 "config.h" #include "asm.S" function ff_vector_fmul_neon, export=1 subs r3, r3, #8 vld1.32 {d0-d3}, [r1,:128]! vld1.32 {d4-d7}, [r2,:128]! vmul.f32 q8, q0, q2 vmul.f32 q9, q1, q3 beq 3f bics ip, r3, #15 beq 2f 1: subs ip, ip, #16 vld1.32 {d0-d1}, [r1,:128]! vld1.32 {d4-d5}, [r2,:128]! vmul.f32 q10, q0, q2 vld1.32 {d2-d3}, [r1,:128]! vld1.32 {d6-d7}, [r2,:128]! vmul.f32 q11, q1, q3 vst1.32 {d16-d19},[r0,:128]! vld1.32 {d0-d1}, [r1,:128]! vld1.32 {d4-d5}, [r2,:128]! vmul.f32 q8, q0, q2 vld1.32 {d2-d3}, [r1,:128]! vld1.32 {d6-d7}, [r2,:128]! vmul.f32 q9, q1, q3 vst1.32 {d20-d23},[r0,:128]! bne 1b ands r3, r3, #15 beq 3f 2: vld1.32 {d0-d1}, [r1,:128]! vld1.32 {d4-d5}, [r2,:128]! vst1.32 {d16-d17},[r0,:128]! vmul.f32 q8, q0, q2 vld1.32 {d2-d3}, [r1,:128]! vld1.32 {d6-d7}, [r2,:128]! vst1.32 {d18-d19},[r0,:128]! vmul.f32 q9, q1, q3 3: vst1.32 {d16-d19},[r0,:128]! bx lr endfunc function ff_vector_fmac_scalar_neon, export=1 VFP len .req r2 VFP acc .req r3 NOVFP len .req r3 NOVFP acc .req r2 VFP vdup.32 q15, d0[0] NOVFP vdup.32 q15, r2 bics r12, len, #15 mov acc, r0 beq 3f vld1.32 {q0}, [r1,:128]! vld1.32 {q8}, [acc,:128]! vld1.32 {q1}, [r1,:128]! vld1.32 {q9}, [acc,:128]! 1: vmla.f32 q8, q0, q15 vld1.32 {q2}, [r1,:128]! vld1.32 {q10}, [acc,:128]! vmla.f32 q9, q1, q15 vld1.32 {q3}, [r1,:128]! vld1.32 {q11}, [acc,:128]! vmla.f32 q10, q2, q15 vst1.32 {q8}, [r0,:128]! vmla.f32 q11, q3, q15 vst1.32 {q9}, [r0,:128]! subs r12, r12, #16 beq 2f vld1.32 {q0}, [r1,:128]! vld1.32 {q8}, [acc,:128]! vst1.32 {q10}, [r0,:128]! vld1.32 {q1}, [r1,:128]! vld1.32 {q9}, [acc,:128]! vst1.32 {q11}, [r0,:128]! b 1b 2: vst1.32 {q10}, [r0,:128]! vst1.32 {q11}, [r0,:128]! ands len, len, #15 it eq bxeq lr 3: vld1.32 {q0}, [r1,:128]! vld1.32 {q8}, [acc,:128]! vmla.f32 q8, q0, q15 vst1.32 {q8}, [r0,:128]! subs len, len, #4 bgt 3b bx lr .unreq len endfunc function ff_vector_fmul_scalar_neon, export=1 VFP len .req r2 NOVFP len .req r3 VFP vdup.32 q8, d0[0] NOVFP vdup.32 q8, r2 bics r12, len, #15 beq 3f vld1.32 {q0},[r1,:128]! vld1.32 {q1},[r1,:128]! 1: vmul.f32 q0, q0, q8 vld1.32 {q2},[r1,:128]! vmul.f32 q1, q1, q8 vld1.32 {q3},[r1,:128]! vmul.f32 q2, q2, q8 vst1.32 {q0},[r0,:128]! vmul.f32 q3, q3, q8 vst1.32 {q1},[r0,:128]! subs r12, r12, #16 beq 2f vld1.32 {q0},[r1,:128]! vst1.32 {q2},[r0,:128]! vld1.32 {q1},[r1,:128]! vst1.32 {q3},[r0,:128]! b 1b 2: vst1.32 {q2},[r0,:128]! vst1.32 {q3},[r0,:128]! ands len, len, #15 it eq bxeq lr 3: vld1.32 {q0},[r1,:128]! vmul.f32 q0, q0, q8 vst1.32 {q0},[r0,:128]! subs len, len, #4 bgt 3b bx lr .unreq len endfunc function ff_vector_fmul_window_neon, export=1 push {r4,r5,lr} ldr lr, [sp, #12] sub r2, r2, #8 sub r5, lr, #2 add r2, r2, r5, lsl #2 add r4, r3, r5, lsl #3 add ip, r0, r5, lsl #3 mov r5, #-16 vld1.32 {d0,d1}, [r1,:128]! vld1.32 {d2,d3}, [r2,:128], r5 vld1.32 {d4,d5}, [r3,:128]! vld1.32 {d6,d7}, [r4,:128], r5 1: subs lr, lr, #4 vmul.f32 d22, d0, d4 vrev64.32 q3, q3 vmul.f32 d23, d1, d5 vrev64.32 q1, q1 vmul.f32 d20, d0, d7 vmul.f32 d21, d1, d6 beq 2f vmla.f32 d22, d3, d7 vld1.32 {d0,d1}, [r1,:128]! vmla.f32 d23, d2, d6 vld1.32 {d18,d19},[r2,:128], r5 vmls.f32 d20, d3, d4 vld1.32 {d24,d25},[r3,:128]! vmls.f32 d21, d2, d5 vld1.32 {d6,d7}, [r4,:128], r5 vmov q1, q9 vrev64.32 q11, q11 vmov q2, q12 vswp d22, d23 vst1.32 {d20,d21},[r0,:128]! vst1.32 {d22,d23},[ip,:128], r5 b 1b 2: vmla.f32 d22, d3, d7 vmla.f32 d23, d2, d6 vmls.f32 d20, d3, d4 vmls.f32 d21, d2, d5 vrev64.32 q11, q11 vswp d22, d23 vst1.32 {d20,d21},[r0,:128]! vst1.32 {d22,d23},[ip,:128], r5 pop {r4,r5,pc} endfunc function ff_vector_fmul_add_neon, export=1 ldr r12, [sp] vld1.32 {q0-q1}, [r1,:128]! vld1.32 {q8-q9}, [r2,:128]! vld1.32 {q2-q3}, [r3,:128]! vmul.f32 q10, q0, q8 vmul.f32 q11, q1, q9 1: vadd.f32 q12, q2, q10 vadd.f32 q13, q3, q11 pld [r1, #16] pld [r2, #16] pld [r3, #16] subs r12, r12, #8 beq 2f vld1.32 {q0}, [r1,:128]! vld1.32 {q8}, [r2,:128]! vmul.f32 q10, q0, q8 vld1.32 {q1}, [r1,:128]! vld1.32 {q9}, [r2,:128]! vmul.f32 q11, q1, q9 vld1.32 {q2-q3}, [r3,:128]! vst1.32 {q12-q13},[r0,:128]! b 1b 2: vst1.32 {q12-q13},[r0,:128]! bx lr endfunc function ff_vector_fmul_reverse_neon, export=1 add r2, r2, r3, lsl #2 sub r2, r2, #32 mov r12, #-32 vld1.32 {q0-q1}, [r1,:128]! vld1.32 {q2-q3}, [r2,:128], r12 1: pld [r1, #32] vrev64.32 q3, q3 vmul.f32 d16, d0, d7 vmul.f32 d17, d1, d6 pld [r2, #-32] vrev64.32 q2, q2 vmul.f32 d18, d2, d5 vmul.f32 d19, d3, d4 subs r3, r3, #8 beq 2f vld1.32 {q0-q1}, [r1,:128]! vld1.32 {q2-q3}, [r2,:128], r12 vst1.32 {q8-q9}, [r0,:128]! b 1b 2: vst1.32 {q8-q9}, [r0,:128]! bx lr endfunc function ff_butterflies_float_neon, export=1 1: vld1.32 {q0},[r0,:128] vld1.32 {q1},[r1,:128] vsub.f32 q2, q0, q1 vadd.f32 q1, q0, q1 vst1.32 {q2},[r1,:128]! vst1.32 {q1},[r0,:128]! subs r2, r2, #4 bgt 1b bx lr endfunc function ff_scalarproduct_float_neon, export=1 vmov.f32 q2, #0.0 1: vld1.32 {q0},[r0,:128]! vld1.32 {q1},[r1,:128]! vmla.f32 q2, q0, q1 subs r2, r2, #4 bgt 1b vadd.f32 d0, d4, d5 vpadd.f32 d0, d0, d0 NOVFP vmov.32 r0, d0[0] bx lr endfunc