2 This file is part of PulseAudio.
4 Copyright 2004-2006 Lennart Poettering
5 Copyright 2009 Wim Taymans <wim.taymans@collabora.co.uk.com>
7 PulseAudio is free software; you can redistribute it and/or modify
8 it under the terms of the GNU Lesser General Public License as published
9 by the Free Software Foundation; either version 2.1 of the License,
10 or (at your option) any later version.
12 PulseAudio is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 General Public License for more details.
17 You should have received a copy of the GNU Lesser General Public License
18 along with PulseAudio; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
27 #include <pulse/sample.h>
28 #include <pulse/volume.h>
29 #include <pulsecore/log.h>
30 #include <pulsecore/macro.h>
35 #define LOAD_SAMPLES \
36 " movdqu (%1), %%xmm0 \n\t" \
37 " movdqu 16(%1), %%xmm2 \n\t" \
38 " movdqu 32(%1), %%xmm4 \n\t" \
39 " movdqu 48(%1), %%xmm6 \n\t" \
40 " movdqa %%xmm0, %%xmm1 \n\t" \
41 " movdqa %%xmm2, %%xmm3 \n\t" \
42 " movdqa %%xmm4, %%xmm5 \n\t" \
43 " movdqa %%xmm6, %%xmm7 \n\t"
45 #define UNPACK_SAMPLES(s) \
46 " punpckl"#s" %%xmm0, %%xmm0 \n\t" \
47 " punpckh"#s" %%xmm1, %%xmm1 \n\t" \
48 " punpckl"#s" %%xmm2, %%xmm2 \n\t" \
49 " punpckh"#s" %%xmm3, %%xmm3 \n\t" \
50 " punpckl"#s" %%xmm4, %%xmm4 \n\t" \
51 " punpckh"#s" %%xmm5, %%xmm5 \n\t" \
52 " punpckl"#s" %%xmm6, %%xmm6 \n\t" \
53 " punpckh"#s" %%xmm7, %%xmm7 \n\t"
55 #define STORE_SAMPLES \
56 " movdqu %%xmm0, (%0) \n\t" \
57 " movdqu %%xmm1, 16(%0) \n\t" \
58 " movdqu %%xmm2, 32(%0) \n\t" \
59 " movdqu %%xmm3, 48(%0) \n\t" \
60 " movdqu %%xmm4, 64(%0) \n\t" \
61 " movdqu %%xmm5, 80(%0) \n\t" \
62 " movdqu %%xmm6, 96(%0) \n\t" \
63 " movdqu %%xmm7, 112(%0) \n\t" \
67 #define HANDLE_SINGLE_dq() \
68 " movd (%1), %%xmm0 \n\t" \
69 " punpckldq %%xmm0, %%xmm0 \n\t" \
70 " movq %%xmm0, (%0) \n\t" \
74 #define HANDLE_SINGLE_wd() \
75 " movw (%1), %w3 \n\t" \
76 " movd %3, %%xmm0 \n\t" \
77 " punpcklwd %%xmm0, %%xmm0 \n\t" \
78 " movd %%xmm0, (%0) \n\t" \
82 #define MONO_TO_STEREO(s,shift,mask) \
84 " sar $"#shift", %2 \n\t" \
95 " and $"#mask", %2 \n\t" \
103 #if defined (__i386__) || defined (__amd64__)
104 static void remap_mono_to_stereo_s16ne_sse2(pa_remap_t
*m
, void *dst
, const void *src
, unsigned n
) {
105 pa_reg_x86 temp
, temp2
;
107 __asm__
__volatile__ (
108 MONO_TO_STEREO(wd
, 5, 31) /* do words to doubles */
109 : "+r" (dst
), "+r" (src
), "=&r" (temp
), "=&r" (temp2
)
110 : "r" ((pa_reg_x86
)n
)
115 static void remap_mono_to_stereo_float32ne_sse2(pa_remap_t
*m
, void *dst
, const void *src
, unsigned n
) {
116 pa_reg_x86 temp
, temp2
;
118 __asm__
__volatile__ (
119 MONO_TO_STEREO(dq
, 4, 15) /* do doubles to quads */
120 : "+r" (dst
), "+r" (src
), "=&r" (temp
), "=&r" (temp2
)
121 : "r" ((pa_reg_x86
)n
)
126 /* set the function that will execute the remapping based on the matrices */
127 static void init_remap_sse2(pa_remap_t
*m
) {
130 n_oc
= m
->o_ss
.channels
;
131 n_ic
= m
->i_ss
.channels
;
133 /* find some common channel remappings, fall back to full matrix operation. */
134 if (n_ic
== 1 && n_oc
== 2 &&
135 m
->map_table_i
[0][0] == 0x10000 && m
->map_table_i
[1][0] == 0x10000) {
137 pa_log_info("Using SSE2 mono to stereo remapping");
138 pa_set_remap_func(m
, remap_mono_to_stereo_s16ne_sse2
, remap_mono_to_stereo_float32ne_sse2
);
141 #endif /* defined (__i386__) || defined (__amd64__) */
143 void pa_remap_func_init_sse(pa_cpu_x86_flag_t flags
) {
144 #if defined (__i386__) || defined (__amd64__)
146 if (flags
& PA_CPU_X86_SSE2
) {
147 pa_log_info("Initialising SSE2 optimized remappers.");
148 pa_set_init_remap_func ((pa_init_remap_func_t
) init_remap_sse2
);
151 #endif /* defined (__i386__) || defined (__amd64__) */