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bluetooth: don't set auto_connect flag when discovering bt devices
[pulseaudio] / src / modules / bluetooth / sbc_primitives_mmx.c
1 /*
2 *
3 * Bluetooth low-complexity, subband codec (SBC) library
4 *
5 * Copyright (C) 2004-2009 Marcel Holtmann <marcel@holtmann.org>
6 * Copyright (C) 2004-2005 Henryk Ploetz <henryk@ploetzli.ch>
7 * Copyright (C) 2005-2006 Brad Midgley <bmidgley@xmission.com>
8 *
9 *
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
14 *
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with this library; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
23 *
24 */
25
26 #include <stdint.h>
27 #include <limits.h>
28 #include "sbc.h"
29 #include "sbc_math.h"
30 #include "sbc_tables.h"
31
32 #include "sbc_primitives_mmx.h"
33
34 /*
35 * MMX optimizations
36 */
37
38 #ifdef SBC_BUILD_WITH_MMX_SUPPORT
39
40 static inline void sbc_analyze_four_mmx(const int16_t *in, int32_t *out,
41 const FIXED_T *consts)
42 {
43 static const SBC_ALIGNED int32_t round_c[2] = {
44 1 << (SBC_PROTO_FIXED4_SCALE - 1),
45 1 << (SBC_PROTO_FIXED4_SCALE - 1),
46 };
47 asm volatile (
48 "movq (%0), %%mm0\n"
49 "movq 8(%0), %%mm1\n"
50 "pmaddwd (%1), %%mm0\n"
51 "pmaddwd 8(%1), %%mm1\n"
52 "paddd (%2), %%mm0\n"
53 "paddd (%2), %%mm1\n"
54 "\n"
55 "movq 16(%0), %%mm2\n"
56 "movq 24(%0), %%mm3\n"
57 "pmaddwd 16(%1), %%mm2\n"
58 "pmaddwd 24(%1), %%mm3\n"
59 "paddd %%mm2, %%mm0\n"
60 "paddd %%mm3, %%mm1\n"
61 "\n"
62 "movq 32(%0), %%mm2\n"
63 "movq 40(%0), %%mm3\n"
64 "pmaddwd 32(%1), %%mm2\n"
65 "pmaddwd 40(%1), %%mm3\n"
66 "paddd %%mm2, %%mm0\n"
67 "paddd %%mm3, %%mm1\n"
68 "\n"
69 "movq 48(%0), %%mm2\n"
70 "movq 56(%0), %%mm3\n"
71 "pmaddwd 48(%1), %%mm2\n"
72 "pmaddwd 56(%1), %%mm3\n"
73 "paddd %%mm2, %%mm0\n"
74 "paddd %%mm3, %%mm1\n"
75 "\n"
76 "movq 64(%0), %%mm2\n"
77 "movq 72(%0), %%mm3\n"
78 "pmaddwd 64(%1), %%mm2\n"
79 "pmaddwd 72(%1), %%mm3\n"
80 "paddd %%mm2, %%mm0\n"
81 "paddd %%mm3, %%mm1\n"
82 "\n"
83 "psrad %4, %%mm0\n"
84 "psrad %4, %%mm1\n"
85 "packssdw %%mm0, %%mm0\n"
86 "packssdw %%mm1, %%mm1\n"
87 "\n"
88 "movq %%mm0, %%mm2\n"
89 "pmaddwd 80(%1), %%mm0\n"
90 "pmaddwd 88(%1), %%mm2\n"
91 "\n"
92 "movq %%mm1, %%mm3\n"
93 "pmaddwd 96(%1), %%mm1\n"
94 "pmaddwd 104(%1), %%mm3\n"
95 "paddd %%mm1, %%mm0\n"
96 "paddd %%mm3, %%mm2\n"
97 "\n"
98 "movq %%mm0, (%3)\n"
99 "movq %%mm2, 8(%3)\n"
100 :
101 : "r" (in), "r" (consts), "r" (&round_c), "r" (out),
102 "i" (SBC_PROTO_FIXED4_SCALE)
103 : "memory");
104 }
105
106 static inline void sbc_analyze_eight_mmx(const int16_t *in, int32_t *out,
107 const FIXED_T *consts)
108 {
109 static const SBC_ALIGNED int32_t round_c[2] = {
110 1 << (SBC_PROTO_FIXED8_SCALE - 1),
111 1 << (SBC_PROTO_FIXED8_SCALE - 1),
112 };
113 asm volatile (
114 "movq (%0), %%mm0\n"
115 "movq 8(%0), %%mm1\n"
116 "movq 16(%0), %%mm2\n"
117 "movq 24(%0), %%mm3\n"
118 "pmaddwd (%1), %%mm0\n"
119 "pmaddwd 8(%1), %%mm1\n"
120 "pmaddwd 16(%1), %%mm2\n"
121 "pmaddwd 24(%1), %%mm3\n"
122 "paddd (%2), %%mm0\n"
123 "paddd (%2), %%mm1\n"
124 "paddd (%2), %%mm2\n"
125 "paddd (%2), %%mm3\n"
126 "\n"
127 "movq 32(%0), %%mm4\n"
128 "movq 40(%0), %%mm5\n"
129 "movq 48(%0), %%mm6\n"
130 "movq 56(%0), %%mm7\n"
131 "pmaddwd 32(%1), %%mm4\n"
132 "pmaddwd 40(%1), %%mm5\n"
133 "pmaddwd 48(%1), %%mm6\n"
134 "pmaddwd 56(%1), %%mm7\n"
135 "paddd %%mm4, %%mm0\n"
136 "paddd %%mm5, %%mm1\n"
137 "paddd %%mm6, %%mm2\n"
138 "paddd %%mm7, %%mm3\n"
139 "\n"
140 "movq 64(%0), %%mm4\n"
141 "movq 72(%0), %%mm5\n"
142 "movq 80(%0), %%mm6\n"
143 "movq 88(%0), %%mm7\n"
144 "pmaddwd 64(%1), %%mm4\n"
145 "pmaddwd 72(%1), %%mm5\n"
146 "pmaddwd 80(%1), %%mm6\n"
147 "pmaddwd 88(%1), %%mm7\n"
148 "paddd %%mm4, %%mm0\n"
149 "paddd %%mm5, %%mm1\n"
150 "paddd %%mm6, %%mm2\n"
151 "paddd %%mm7, %%mm3\n"
152 "\n"
153 "movq 96(%0), %%mm4\n"
154 "movq 104(%0), %%mm5\n"
155 "movq 112(%0), %%mm6\n"
156 "movq 120(%0), %%mm7\n"
157 "pmaddwd 96(%1), %%mm4\n"
158 "pmaddwd 104(%1), %%mm5\n"
159 "pmaddwd 112(%1), %%mm6\n"
160 "pmaddwd 120(%1), %%mm7\n"
161 "paddd %%mm4, %%mm0\n"
162 "paddd %%mm5, %%mm1\n"
163 "paddd %%mm6, %%mm2\n"
164 "paddd %%mm7, %%mm3\n"
165 "\n"
166 "movq 128(%0), %%mm4\n"
167 "movq 136(%0), %%mm5\n"
168 "movq 144(%0), %%mm6\n"
169 "movq 152(%0), %%mm7\n"
170 "pmaddwd 128(%1), %%mm4\n"
171 "pmaddwd 136(%1), %%mm5\n"
172 "pmaddwd 144(%1), %%mm6\n"
173 "pmaddwd 152(%1), %%mm7\n"
174 "paddd %%mm4, %%mm0\n"
175 "paddd %%mm5, %%mm1\n"
176 "paddd %%mm6, %%mm2\n"
177 "paddd %%mm7, %%mm3\n"
178 "\n"
179 "psrad %4, %%mm0\n"
180 "psrad %4, %%mm1\n"
181 "psrad %4, %%mm2\n"
182 "psrad %4, %%mm3\n"
183 "\n"
184 "packssdw %%mm0, %%mm0\n"
185 "packssdw %%mm1, %%mm1\n"
186 "packssdw %%mm2, %%mm2\n"
187 "packssdw %%mm3, %%mm3\n"
188 "\n"
189 "movq %%mm0, %%mm4\n"
190 "movq %%mm0, %%mm5\n"
191 "pmaddwd 160(%1), %%mm4\n"
192 "pmaddwd 168(%1), %%mm5\n"
193 "\n"
194 "movq %%mm1, %%mm6\n"
195 "movq %%mm1, %%mm7\n"
196 "pmaddwd 192(%1), %%mm6\n"
197 "pmaddwd 200(%1), %%mm7\n"
198 "paddd %%mm6, %%mm4\n"
199 "paddd %%mm7, %%mm5\n"
200 "\n"
201 "movq %%mm2, %%mm6\n"
202 "movq %%mm2, %%mm7\n"
203 "pmaddwd 224(%1), %%mm6\n"
204 "pmaddwd 232(%1), %%mm7\n"
205 "paddd %%mm6, %%mm4\n"
206 "paddd %%mm7, %%mm5\n"
207 "\n"
208 "movq %%mm3, %%mm6\n"
209 "movq %%mm3, %%mm7\n"
210 "pmaddwd 256(%1), %%mm6\n"
211 "pmaddwd 264(%1), %%mm7\n"
212 "paddd %%mm6, %%mm4\n"
213 "paddd %%mm7, %%mm5\n"
214 "\n"
215 "movq %%mm4, (%3)\n"
216 "movq %%mm5, 8(%3)\n"
217 "\n"
218 "movq %%mm0, %%mm5\n"
219 "pmaddwd 176(%1), %%mm0\n"
220 "pmaddwd 184(%1), %%mm5\n"
221 "\n"
222 "movq %%mm1, %%mm7\n"
223 "pmaddwd 208(%1), %%mm1\n"
224 "pmaddwd 216(%1), %%mm7\n"
225 "paddd %%mm1, %%mm0\n"
226 "paddd %%mm7, %%mm5\n"
227 "\n"
228 "movq %%mm2, %%mm7\n"
229 "pmaddwd 240(%1), %%mm2\n"
230 "pmaddwd 248(%1), %%mm7\n"
231 "paddd %%mm2, %%mm0\n"
232 "paddd %%mm7, %%mm5\n"
233 "\n"
234 "movq %%mm3, %%mm7\n"
235 "pmaddwd 272(%1), %%mm3\n"
236 "pmaddwd 280(%1), %%mm7\n"
237 "paddd %%mm3, %%mm0\n"
238 "paddd %%mm7, %%mm5\n"
239 "\n"
240 "movq %%mm0, 16(%3)\n"
241 "movq %%mm5, 24(%3)\n"
242 :
243 : "r" (in), "r" (consts), "r" (&round_c), "r" (out),
244 "i" (SBC_PROTO_FIXED8_SCALE)
245 : "memory");
246 }
247
248 static inline void sbc_analyze_4b_4s_mmx(int16_t *x, int32_t *out,
249 int out_stride)
250 {
251 /* Analyze blocks */
252 sbc_analyze_four_mmx(x + 12, out, analysis_consts_fixed4_simd_odd);
253 out += out_stride;
254 sbc_analyze_four_mmx(x + 8, out, analysis_consts_fixed4_simd_even);
255 out += out_stride;
256 sbc_analyze_four_mmx(x + 4, out, analysis_consts_fixed4_simd_odd);
257 out += out_stride;
258 sbc_analyze_four_mmx(x + 0, out, analysis_consts_fixed4_simd_even);
259
260 asm volatile ("emms\n");
261 }
262
263 static inline void sbc_analyze_4b_8s_mmx(int16_t *x, int32_t *out,
264 int out_stride)
265 {
266 /* Analyze blocks */
267 sbc_analyze_eight_mmx(x + 24, out, analysis_consts_fixed8_simd_odd);
268 out += out_stride;
269 sbc_analyze_eight_mmx(x + 16, out, analysis_consts_fixed8_simd_even);
270 out += out_stride;
271 sbc_analyze_eight_mmx(x + 8, out, analysis_consts_fixed8_simd_odd);
272 out += out_stride;
273 sbc_analyze_eight_mmx(x + 0, out, analysis_consts_fixed8_simd_even);
274
275 asm volatile ("emms\n");
276 }
277
278 static int check_mmx_support(void)
279 {
280 #ifdef __amd64__
281 return 1; /* We assume that all 64-bit processors have MMX support */
282 #else
283 int cpuid_feature_information;
284 asm volatile (
285 /* According to Intel manual, CPUID instruction is supported
286 * if the value of ID bit (bit 21) in EFLAGS can be modified */
287 "pushf\n"
288 "movl (%%esp), %0\n"
289 "xorl $0x200000, (%%esp)\n" /* try to modify ID bit */
290 "popf\n"
291 "pushf\n"
292 "xorl (%%esp), %0\n" /* check if ID bit changed */
293 "jz 1f\n"
294 "push %%eax\n"
295 "push %%ebx\n"
296 "push %%ecx\n"
297 "mov $1, %%eax\n"
298 "cpuid\n"
299 "pop %%ecx\n"
300 "pop %%ebx\n"
301 "pop %%eax\n"
302 "1:\n"
303 "popf\n"
304 : "=d" (cpuid_feature_information)
305 :
306 : "cc");
307 return cpuid_feature_information & (1 << 23);
308 #endif
309 }
310
311 void sbc_init_primitives_mmx(struct sbc_encoder_state *state)
312 {
313 if (check_mmx_support()) {
314 state->sbc_analyze_4b_4s = sbc_analyze_4b_4s_mmx;
315 state->sbc_analyze_4b_8s = sbc_analyze_4b_8s_mmx;
316 state->implementation_info = "MMX";
317 }
318 }
319
320 #endif