WebSVN – Kolibri OS – Blame – /contrib/sdk/sources/ffmpeg/libavcodec/arm/fmtconvert_neon.S

Rev	Author	Line No.	Line
4349	Serge	1	/*
		2	* ARM NEON optimised Format Conversion Utils
		3	* Copyright (c) 2008 Mans Rullgard
		4	*
		5	* This file is part of FFmpeg.
		6	*
		7	* FFmpeg is free software; you can redistribute it and/or
		8	* modify it under the terms of the GNU Lesser General Public
		9	* License as published by the Free Software Foundation; either
		10	* version 2.1 of the License, or (at your option) any later version.
		11	*
		12	* FFmpeg is distributed in the hope that it will be useful,
		13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
		14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
		15	* Lesser General Public License for more details.
		16	*
		17	* You should have received a copy of the GNU Lesser General Public
		18	* License along with FFmpeg; if not, write to the Free Software
		19	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
		20	*/
		21
		22	#include "config.h"
		23	#include "libavutil/arm/asm.S"
		24
		25	function ff_float_to_int16_neon, export=1
		26	subs r2, r2, #8
		27	vld1.64 {d0-d1}, [r1,:128]!
		28	vcvt.s32.f32 q8, q0, #16
		29	vld1.64 {d2-d3}, [r1,:128]!
		30	vcvt.s32.f32 q9, q1, #16
		31	beq 3f
		32	bics ip, r2, #15
		33	beq 2f
		34	1: subs ip, ip, #16
		35	vshrn.s32 d4, q8, #16
		36	vld1.64 {d0-d1}, [r1,:128]!
		37	vcvt.s32.f32 q0, q0, #16
		38	vshrn.s32 d5, q9, #16
		39	vld1.64 {d2-d3}, [r1,:128]!
		40	vcvt.s32.f32 q1, q1, #16
		41	vshrn.s32 d6, q0, #16
		42	vst1.64 {d4-d5}, [r0,:128]!
		43	vshrn.s32 d7, q1, #16
		44	vld1.64 {d16-d17},[r1,:128]!
		45	vcvt.s32.f32 q8, q8, #16
		46	vld1.64 {d18-d19},[r1,:128]!
		47	vcvt.s32.f32 q9, q9, #16
		48	vst1.64 {d6-d7}, [r0,:128]!
		49	bne 1b
		50	ands r2, r2, #15
		51	beq 3f
		52	2: vld1.64 {d0-d1}, [r1,:128]!
		53	vshrn.s32 d4, q8, #16
		54	vcvt.s32.f32 q0, q0, #16
		55	vld1.64 {d2-d3}, [r1,:128]!
		56	vshrn.s32 d5, q9, #16
		57	vcvt.s32.f32 q1, q1, #16
		58	vshrn.s32 d6, q0, #16
		59	vst1.64 {d4-d5}, [r0,:128]!
		60	vshrn.s32 d7, q1, #16
		61	vst1.64 {d6-d7}, [r0,:128]!
		62	bx lr
		63	3: vshrn.s32 d4, q8, #16
		64	vshrn.s32 d5, q9, #16
		65	vst1.64 {d4-d5}, [r0,:128]!
		66	bx lr
		67	endfunc
		68
		69	function ff_float_to_int16_interleave_neon, export=1
		70	cmp r3, #2
		71	itt lt
		72	ldrlt r1, [r1]
		73	blt ff_float_to_int16_neon
		74	bne 4f
		75
		76	ldr r3, [r1]
		77	ldr r1, [r1, #4]
		78
		79	subs r2, r2, #8
		80	vld1.64 {d0-d1}, [r3,:128]!
		81	vcvt.s32.f32 q8, q0, #16
		82	vld1.64 {d2-d3}, [r3,:128]!
		83	vcvt.s32.f32 q9, q1, #16
		84	vld1.64 {d20-d21},[r1,:128]!
		85	vcvt.s32.f32 q10, q10, #16
		86	vld1.64 {d22-d23},[r1,:128]!
		87	vcvt.s32.f32 q11, q11, #16
		88	beq 3f
		89	bics ip, r2, #15
		90	beq 2f
		91	1: subs ip, ip, #16
		92	vld1.64 {d0-d1}, [r3,:128]!
		93	vcvt.s32.f32 q0, q0, #16
		94	vsri.32 q10, q8, #16
		95	vld1.64 {d2-d3}, [r3,:128]!
		96	vcvt.s32.f32 q1, q1, #16
		97	vld1.64 {d24-d25},[r1,:128]!
		98	vcvt.s32.f32 q12, q12, #16
		99	vld1.64 {d26-d27},[r1,:128]!
		100	vsri.32 q11, q9, #16
		101	vst1.64 {d20-d21},[r0,:128]!
		102	vcvt.s32.f32 q13, q13, #16
		103	vst1.64 {d22-d23},[r0,:128]!
		104	vsri.32 q12, q0, #16
		105	vld1.64 {d16-d17},[r3,:128]!
		106	vsri.32 q13, q1, #16
		107	vst1.64 {d24-d25},[r0,:128]!
		108	vcvt.s32.f32 q8, q8, #16
		109	vld1.64 {d18-d19},[r3,:128]!
		110	vcvt.s32.f32 q9, q9, #16
		111	vld1.64 {d20-d21},[r1,:128]!
		112	vcvt.s32.f32 q10, q10, #16
		113	vld1.64 {d22-d23},[r1,:128]!
		114	vcvt.s32.f32 q11, q11, #16
		115	vst1.64 {d26-d27},[r0,:128]!
		116	bne 1b
		117	ands r2, r2, #15
		118	beq 3f
		119	2: vsri.32 q10, q8, #16
		120	vld1.64 {d0-d1}, [r3,:128]!
		121	vcvt.s32.f32 q0, q0, #16
		122	vld1.64 {d2-d3}, [r3,:128]!
		123	vcvt.s32.f32 q1, q1, #16
		124	vld1.64 {d24-d25},[r1,:128]!
		125	vcvt.s32.f32 q12, q12, #16
		126	vsri.32 q11, q9, #16
		127	vld1.64 {d26-d27},[r1,:128]!
		128	vcvt.s32.f32 q13, q13, #16
		129	vst1.64 {d20-d21},[r0,:128]!
		130	vsri.32 q12, q0, #16
		131	vst1.64 {d22-d23},[r0,:128]!
		132	vsri.32 q13, q1, #16
		133	vst1.64 {d24-d27},[r0,:128]!
		134	bx lr
		135	3: vsri.32 q10, q8, #16
		136	vsri.32 q11, q9, #16
		137	vst1.64 {d20-d23},[r0,:128]!
		138	bx lr
		139
		140	4: push {r4-r8,lr}
		141	cmp r3, #4
		142	lsl ip, r3, #1
		143	blt 4f
		144
		145	@ 4 channels
		146	5: ldmia r1!, {r4-r7}
		147	mov lr, r2
		148	mov r8, r0
		149	vld1.64 {d16-d17},[r4,:128]!
		150	vcvt.s32.f32 q8, q8, #16
		151	vld1.64 {d18-d19},[r5,:128]!
		152	vcvt.s32.f32 q9, q9, #16
		153	vld1.64 {d20-d21},[r6,:128]!
		154	vcvt.s32.f32 q10, q10, #16
		155	vld1.64 {d22-d23},[r7,:128]!
		156	vcvt.s32.f32 q11, q11, #16
		157	6: subs lr, lr, #8
		158	vld1.64 {d0-d1}, [r4,:128]!
		159	vcvt.s32.f32 q0, q0, #16
		160	vsri.32 q9, q8, #16
		161	vld1.64 {d2-d3}, [r5,:128]!
		162	vcvt.s32.f32 q1, q1, #16
		163	vsri.32 q11, q10, #16
		164	vld1.64 {d4-d5}, [r6,:128]!
		165	vcvt.s32.f32 q2, q2, #16
		166	vzip.32 d18, d22
		167	vld1.64 {d6-d7}, [r7,:128]!
		168	vcvt.s32.f32 q3, q3, #16
		169	vzip.32 d19, d23
		170	vst1.64 {d18}, [r8], ip
		171	vsri.32 q1, q0, #16
		172	vst1.64 {d22}, [r8], ip
		173	vsri.32 q3, q2, #16
		174	vst1.64 {d19}, [r8], ip
		175	vzip.32 d2, d6
		176	vst1.64 {d23}, [r8], ip
		177	vzip.32 d3, d7
		178	beq 7f
		179	vld1.64 {d16-d17},[r4,:128]!
		180	vcvt.s32.f32 q8, q8, #16
		181	vst1.64 {d2}, [r8], ip
		182	vld1.64 {d18-d19},[r5,:128]!
		183	vcvt.s32.f32 q9, q9, #16
		184	vst1.64 {d6}, [r8], ip
		185	vld1.64 {d20-d21},[r6,:128]!
		186	vcvt.s32.f32 q10, q10, #16
		187	vst1.64 {d3}, [r8], ip
		188	vld1.64 {d22-d23},[r7,:128]!
		189	vcvt.s32.f32 q11, q11, #16
		190	vst1.64 {d7}, [r8], ip
		191	b 6b
		192	7: vst1.64 {d2}, [r8], ip
		193	vst1.64 {d6}, [r8], ip
		194	vst1.64 {d3}, [r8], ip
		195	vst1.64 {d7}, [r8], ip
		196	subs r3, r3, #4
		197	it eq
		198	popeq {r4-r8,pc}
		199	cmp r3, #4
		200	add r0, r0, #8
		201	bge 5b
		202
		203	@ 2 channels
		204	4: cmp r3, #2
		205	blt 4f
		206	ldmia r1!, {r4-r5}
		207	mov lr, r2
		208	mov r8, r0
		209	tst lr, #8
		210	vld1.64 {d16-d17},[r4,:128]!
		211	vcvt.s32.f32 q8, q8, #16
		212	vld1.64 {d18-d19},[r5,:128]!
		213	vcvt.s32.f32 q9, q9, #16
		214	vld1.64 {d20-d21},[r4,:128]!
		215	vcvt.s32.f32 q10, q10, #16
		216	vld1.64 {d22-d23},[r5,:128]!
		217	vcvt.s32.f32 q11, q11, #16
		218	beq 6f
		219	subs lr, lr, #8
		220	beq 7f
		221	vsri.32 d18, d16, #16
		222	vsri.32 d19, d17, #16
		223	vld1.64 {d16-d17},[r4,:128]!
		224	vcvt.s32.f32 q8, q8, #16
		225	vst1.32 {d18[0]}, [r8], ip
		226	vsri.32 d22, d20, #16
		227	vst1.32 {d18[1]}, [r8], ip
		228	vsri.32 d23, d21, #16
		229	vst1.32 {d19[0]}, [r8], ip
		230	vst1.32 {d19[1]}, [r8], ip
		231	vld1.64 {d18-d19},[r5,:128]!
		232	vcvt.s32.f32 q9, q9, #16
		233	vst1.32 {d22[0]}, [r8], ip
		234	vst1.32 {d22[1]}, [r8], ip
		235	vld1.64 {d20-d21},[r4,:128]!
		236	vcvt.s32.f32 q10, q10, #16
		237	vst1.32 {d23[0]}, [r8], ip
		238	vst1.32 {d23[1]}, [r8], ip
		239	vld1.64 {d22-d23},[r5,:128]!
		240	vcvt.s32.f32 q11, q11, #16
		241	6: subs lr, lr, #16
		242	vld1.64 {d0-d1}, [r4,:128]!
		243	vcvt.s32.f32 q0, q0, #16
		244	vsri.32 d18, d16, #16
		245	vld1.64 {d2-d3}, [r5,:128]!
		246	vcvt.s32.f32 q1, q1, #16
		247	vsri.32 d19, d17, #16
		248	vld1.64 {d4-d5}, [r4,:128]!
		249	vcvt.s32.f32 q2, q2, #16
		250	vld1.64 {d6-d7}, [r5,:128]!
		251	vcvt.s32.f32 q3, q3, #16
		252	vst1.32 {d18[0]}, [r8], ip
		253	vsri.32 d22, d20, #16
		254	vst1.32 {d18[1]}, [r8], ip
		255	vsri.32 d23, d21, #16
		256	vst1.32 {d19[0]}, [r8], ip
		257	vsri.32 d2, d0, #16
		258	vst1.32 {d19[1]}, [r8], ip
		259	vsri.32 d3, d1, #16
		260	vst1.32 {d22[0]}, [r8], ip
		261	vsri.32 d6, d4, #16
		262	vst1.32 {d22[1]}, [r8], ip
		263	vsri.32 d7, d5, #16
		264	vst1.32 {d23[0]}, [r8], ip
		265	vst1.32 {d23[1]}, [r8], ip
		266	beq 6f
		267	vld1.64 {d16-d17},[r4,:128]!
		268	vcvt.s32.f32 q8, q8, #16
		269	vst1.32 {d2[0]}, [r8], ip
		270	vst1.32 {d2[1]}, [r8], ip
		271	vld1.64 {d18-d19},[r5,:128]!
		272	vcvt.s32.f32 q9, q9, #16
		273	vst1.32 {d3[0]}, [r8], ip
		274	vst1.32 {d3[1]}, [r8], ip
		275	vld1.64 {d20-d21},[r4,:128]!
		276	vcvt.s32.f32 q10, q10, #16
		277	vst1.32 {d6[0]}, [r8], ip
		278	vst1.32 {d6[1]}, [r8], ip
		279	vld1.64 {d22-d23},[r5,:128]!
		280	vcvt.s32.f32 q11, q11, #16
		281	vst1.32 {d7[0]}, [r8], ip
		282	vst1.32 {d7[1]}, [r8], ip
		283	bgt 6b
		284	6: vst1.32 {d2[0]}, [r8], ip
		285	vst1.32 {d2[1]}, [r8], ip
		286	vst1.32 {d3[0]}, [r8], ip
		287	vst1.32 {d3[1]}, [r8], ip
		288	vst1.32 {d6[0]}, [r8], ip
		289	vst1.32 {d6[1]}, [r8], ip
		290	vst1.32 {d7[0]}, [r8], ip
		291	vst1.32 {d7[1]}, [r8], ip
		292	b 8f
		293	7: vsri.32 d18, d16, #16
		294	vsri.32 d19, d17, #16
		295	vst1.32 {d18[0]}, [r8], ip
		296	vsri.32 d22, d20, #16
		297	vst1.32 {d18[1]}, [r8], ip
		298	vsri.32 d23, d21, #16
		299	vst1.32 {d19[0]}, [r8], ip
		300	vst1.32 {d19[1]}, [r8], ip
		301	vst1.32 {d22[0]}, [r8], ip
		302	vst1.32 {d22[1]}, [r8], ip
		303	vst1.32 {d23[0]}, [r8], ip
		304	vst1.32 {d23[1]}, [r8], ip
		305	8: subs r3, r3, #2
		306	add r0, r0, #4
		307	it eq
		308	popeq {r4-r8,pc}
		309
		310	@ 1 channel
		311	4: ldr r4, [r1],#4
		312	tst r2, #8
		313	mov lr, r2
		314	mov r5, r0
		315	vld1.64 {d0-d1}, [r4,:128]!
		316	vcvt.s32.f32 q0, q0, #16
		317	vld1.64 {d2-d3}, [r4,:128]!
		318	vcvt.s32.f32 q1, q1, #16
		319	bne 8f
		320	6: subs lr, lr, #16
		321	vld1.64 {d4-d5}, [r4,:128]!
		322	vcvt.s32.f32 q2, q2, #16
		323	vld1.64 {d6-d7}, [r4,:128]!
		324	vcvt.s32.f32 q3, q3, #16
		325	vst1.16 {d0[1]}, [r5,:16], ip
		326	vst1.16 {d0[3]}, [r5,:16], ip
		327	vst1.16 {d1[1]}, [r5,:16], ip
		328	vst1.16 {d1[3]}, [r5,:16], ip
		329	vst1.16 {d2[1]}, [r5,:16], ip
		330	vst1.16 {d2[3]}, [r5,:16], ip
		331	vst1.16 {d3[1]}, [r5,:16], ip
		332	vst1.16 {d3[3]}, [r5,:16], ip
		333	beq 7f
		334	vld1.64 {d0-d1}, [r4,:128]!
		335	vcvt.s32.f32 q0, q0, #16
		336	vld1.64 {d2-d3}, [r4,:128]!
		337	vcvt.s32.f32 q1, q1, #16
		338	7: vst1.16 {d4[1]}, [r5,:16], ip
		339	vst1.16 {d4[3]}, [r5,:16], ip
		340	vst1.16 {d5[1]}, [r5,:16], ip
		341	vst1.16 {d5[3]}, [r5,:16], ip
		342	vst1.16 {d6[1]}, [r5,:16], ip
		343	vst1.16 {d6[3]}, [r5,:16], ip
		344	vst1.16 {d7[1]}, [r5,:16], ip
		345	vst1.16 {d7[3]}, [r5,:16], ip
		346	bgt 6b
		347	pop {r4-r8,pc}
		348	8: subs lr, lr, #8
		349	vst1.16 {d0[1]}, [r5,:16], ip
		350	vst1.16 {d0[3]}, [r5,:16], ip
		351	vst1.16 {d1[1]}, [r5,:16], ip
		352	vst1.16 {d1[3]}, [r5,:16], ip
		353	vst1.16 {d2[1]}, [r5,:16], ip
		354	vst1.16 {d2[3]}, [r5,:16], ip
		355	vst1.16 {d3[1]}, [r5,:16], ip
		356	vst1.16 {d3[3]}, [r5,:16], ip
		357	it eq
		358	popeq {r4-r8,pc}
		359	vld1.64 {d0-d1}, [r4,:128]!
		360	vcvt.s32.f32 q0, q0, #16
		361	vld1.64 {d2-d3}, [r4,:128]!
		362	vcvt.s32.f32 q1, q1, #16
		363	b 6b
		364	endfunc
		365
		366	function ff_int32_to_float_fmul_scalar_neon, export=1
		367	VFP vdup.32 q0, d0[0]
		368	VFP len .req r2
		369	NOVFP vdup.32 q0, r2
		370	NOVFP len .req r3
		371
		372	vld1.32 {q1},[r1,:128]!
		373	vcvt.f32.s32 q3, q1
		374	vld1.32 {q2},[r1,:128]!
		375	vcvt.f32.s32 q8, q2
		376	1: subs len, len, #8
		377	pld [r1, #16]
		378	vmul.f32 q9, q3, q0
		379	vmul.f32 q10, q8, q0
		380	beq 2f
		381	vld1.32 {q1},[r1,:128]!
		382	vcvt.f32.s32 q3, q1
		383	vld1.32 {q2},[r1,:128]!
		384	vcvt.f32.s32 q8, q2
		385	vst1.32 {q9}, [r0,:128]!
		386	vst1.32 {q10},[r0,:128]!
		387	b 1b
		388	2: vst1.32 {q9}, [r0,:128]!
		389	vst1.32 {q10},[r0,:128]!
		390	bx lr
		391	.unreq len
		392	endfunc

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(root)/contrib/sdk/sources/ffmpeg/libavcodec/arm/fmtconvert_neon.S – Rev 4349