[deb_ffmpeg.git] / ffmpeg / libavcodec / arm / dcadsp_neon.S

/*
 * Copyright (c) 2010 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 "libavutil/arm/asm.S"

function ff_decode_hf_neon, export=1
        push            {r4-r5,lr}
        add             r2,  r2,  r3
        ldr             r3,       [sp, #12]
        ldrd            r4,  r5,  [sp, #16]
        add             r3,  r3,  r4, lsl #3
        add             r1,  r1,  r4, lsl #2
        add             r0,  r0,  r4, lsl #5

1:      ldr_post        lr,  r1,  #4
        add             r4,  r4,  #1
        add             lr,  r2,  lr, lsl #5
        cmp             r4,  r5
        vld1.32         {d7},     [r3]!
        vld1.8          {d0},     [lr,:64]
        vcvt.f32.s32    d7,  d7,  #4
        vmovl.s8        q1,  d0
        vmovl.s16       q0,  d2
        vmovl.s16       q1,  d3
        vcvt.f32.s32    q0,  q0
        vcvt.f32.s32    q1,  q1
        vmul.f32        q0,  q0,  d7[0]
        vmul.f32        q1,  q1,  d7[0]
        vst1.32         {q0-q1},  [r0,:128]!
        bne             1b

        pop             {r4-r5,pc}
endfunc

function ff_dca_lfe_fir0_neon, export=1
        push            {r4-r6,lr}
        mov             r3,  #32                @ decifactor
        mov             r6,  #256/32
        b               dca_lfe_fir
endfunc

function ff_dca_lfe_fir1_neon, export=1
        push            {r4-r6,lr}
        mov             r3,  #64                @ decifactor
        mov             r6,  #256/64
dca_lfe_fir:
        add             r4,  r0,  r3,  lsl #2   @ out2
        add             r5,  r2,  #256*4-16     @ cf1
        sub             r1,  r1,  #12
        mov             lr,  #-16
1:
        vmov.f32        q2,  #0.0               @ v0
        vmov.f32        q3,  #0.0               @ v1
        mov             r12, r6
2:
        vld1.32         {q8},     [r2,:128]!    @ cf0
        vld1.32         {q9},     [r5,:128], lr @ cf1
        vld1.32         {q1},     [r1], lr      @ in
        subs            r12, r12, #4
        vrev64.32       q10, q8
        vmla.f32        q3,  q1,  q9
        vmla.f32        d4,  d2,  d21
        vmla.f32        d5,  d3,  d20
        bne             2b

        add             r1,  r1,  r6,  lsl #2
        subs            r3,  r3,  #1
        vadd.f32        d4,  d4,  d5
        vadd.f32        d6,  d6,  d7
        vpadd.f32       d5,  d4,  d6
        vst1.32         {d5[0]},  [r0,:32]!
        vst1.32         {d5[1]},  [r4,:32]!
        bne             1b

        pop             {r4-r6,pc}
endfunc
Commit	Line	Data
2ba45a60 DM	1	/*
	2	* Copyright (c) 2010 Mans Rullgard <mans@mansr.com>
	3	*
	4	* This file is part of FFmpeg.
	5	*
	6	* FFmpeg is free software; you can redistribute it and/or
	7	* modify it under the terms of the GNU Lesser General Public
	8	* License as published by the Free Software Foundation; either
	9	* version 2.1 of the License, or (at your option) any later version.
	10	*
	11	* FFmpeg is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	14	* Lesser General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU Lesser General Public
	17	* License along with FFmpeg; if not, write to the Free Software
	18	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	19	*/
	20
	21	#include "libavutil/arm/asm.S"
	22
	23	function ff_decode_hf_neon, export=1
	24	push {r4-r5,lr}
	25	add r2, r2, r3
	26	ldr r3, [sp, #12]
	27	ldrd r4, r5, [sp, #16]
	28	add r3, r3, r4, lsl #3
	29	add r1, r1, r4, lsl #2
	30	add r0, r0, r4, lsl #5
	31
	32	1: ldr_post lr, r1, #4
	33	add r4, r4, #1
	34	add lr, r2, lr, lsl #5
	35	cmp r4, r5
	36	vld1.32 {d7}, [r3]!
	37	vld1.8 {d0}, [lr,:64]
	38	vcvt.f32.s32 d7, d7, #4
	39	vmovl.s8 q1, d0
	40	vmovl.s16 q0, d2
	41	vmovl.s16 q1, d3
	42	vcvt.f32.s32 q0, q0
	43	vcvt.f32.s32 q1, q1
	44	vmul.f32 q0, q0, d7[0]
	45	vmul.f32 q1, q1, d7[0]
	46	vst1.32 {q0-q1}, [r0,:128]!
	47	bne 1b
	48
	49	pop {r4-r5,pc}
	50	endfunc
	51
	52	function ff_dca_lfe_fir0_neon, export=1
	53	push {r4-r6,lr}
	54	mov r3, #32 @ decifactor
	55	mov r6, #256/32
	56	b dca_lfe_fir
	57	endfunc
	58
	59	function ff_dca_lfe_fir1_neon, export=1
	60	push {r4-r6,lr}
	61	mov r3, #64 @ decifactor
	62	mov r6, #256/64
	63	dca_lfe_fir:
	64	add r4, r0, r3, lsl #2 @ out2
65	add r5, r2, #256*4-16 @ cf1
66	sub r1, r1, #12
67	mov lr, #-16
68	1:
69	vmov.f32 q2, #0.0 @ v0
70	vmov.f32 q3, #0.0 @ v1
71	mov r12, r6
72	2:
73	vld1.32 {q8}, [r2,:128]! @ cf0
74	vld1.32 {q9}, [r5,:128], lr @ cf1
75	vld1.32 {q1}, [r1], lr @ in
76	subs r12, r12, #4
77	vrev64.32 q10, q8
78	vmla.f32 q3, q1, q9
79	vmla.f32 d4, d2, d21
80	vmla.f32 d5, d3, d20
81	bne 2b
82
83	add r1, r1, r6, lsl #2
84	subs r3, r3, #1
85	vadd.f32 d4, d4, d5
86	vadd.f32 d6, d6, d7
87	vpadd.f32 d5, d4, d6
88	vst1.32 {d5[0]}, [r0,:32]!
89	vst1.32 {d5[1]}, [r4,:32]!
90	bne 1b
91
92	pop {r4-r6,pc}
93	endfunc