ia64/xen-unstable

view tools/ioemu/audio/wavaudio.c @ 15841:c5f735271e22

[IA64] Foreign p2m: Fix vti domain builder.

It should set arch_domain::convmem_end.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
author Alex Williamson <alex.williamson@hp.com>
date Thu Sep 06 13:48:43 2007 -0600 (2007-09-06)
parents 00618037d37d
children
line source
1 /*
2 * QEMU WAV audio driver
3 *
4 * Copyright (c) 2004-2005 Vassili Karpov (malc)
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24 #include "vl.h"
26 #define AUDIO_CAP "wav"
27 #include "audio_int.h"
29 typedef struct WAVVoiceOut {
30 HWVoiceOut hw;
31 QEMUFile *f;
32 int64_t old_ticks;
33 void *pcm_buf;
34 int total_samples;
35 } WAVVoiceOut;
37 static struct {
38 audsettings_t settings;
39 const char *wav_path;
40 } conf = {
41 {
42 44100,
43 2,
44 AUD_FMT_S16
45 },
46 "qemu.wav"
47 };
49 static int wav_run_out (HWVoiceOut *hw)
50 {
51 WAVVoiceOut *wav = (WAVVoiceOut *) hw;
52 int rpos, live, decr, samples;
53 uint8_t *dst;
54 st_sample_t *src;
55 int64_t now = qemu_get_clock (vm_clock);
56 int64_t ticks = now - wav->old_ticks;
57 int64_t bytes = (ticks * hw->info.bytes_per_second) / ticks_per_sec;
59 if (bytes > INT_MAX) {
60 samples = INT_MAX >> hw->info.shift;
61 }
62 else {
63 samples = bytes >> hw->info.shift;
64 }
66 live = audio_pcm_hw_get_live_out (hw);
67 if (!live) {
68 return 0;
69 }
71 wav->old_ticks = now;
72 decr = audio_MIN (live, samples);
73 samples = decr;
74 rpos = hw->rpos;
75 while (samples) {
76 int left_till_end_samples = hw->samples - rpos;
77 int convert_samples = audio_MIN (samples, left_till_end_samples);
79 src = hw->mix_buf + rpos;
80 dst = advance (wav->pcm_buf, rpos << hw->info.shift);
82 hw->clip (dst, src, convert_samples);
83 qemu_put_buffer (wav->f, dst, convert_samples << hw->info.shift);
85 rpos = (rpos + convert_samples) % hw->samples;
86 samples -= convert_samples;
87 wav->total_samples += convert_samples;
88 }
90 hw->rpos = rpos;
91 return decr;
92 }
94 static int wav_write_out (SWVoiceOut *sw, void *buf, int len)
95 {
96 return audio_pcm_sw_write (sw, buf, len);
97 }
99 /* VICE code: Store number as little endian. */
100 static void le_store (uint8_t *buf, uint32_t val, int len)
101 {
102 int i;
103 for (i = 0; i < len; i++) {
104 buf[i] = (uint8_t) (val & 0xff);
105 val >>= 8;
106 }
107 }
109 static int wav_init_out (HWVoiceOut *hw, audsettings_t *as)
110 {
111 WAVVoiceOut *wav = (WAVVoiceOut *) hw;
112 int bits16 = 0, stereo = 0;
113 uint8_t hdr[] = {
114 0x52, 0x49, 0x46, 0x46, 0x00, 0x00, 0x00, 0x00, 0x57, 0x41, 0x56,
115 0x45, 0x66, 0x6d, 0x74, 0x20, 0x10, 0x00, 0x00, 0x00, 0x01, 0x00,
116 0x02, 0x00, 0x44, 0xac, 0x00, 0x00, 0x10, 0xb1, 0x02, 0x00, 0x04,
117 0x00, 0x10, 0x00, 0x64, 0x61, 0x74, 0x61, 0x00, 0x00, 0x00, 0x00
118 };
119 audsettings_t wav_as = conf.settings;
121 (void) as;
123 stereo = wav_as.nchannels == 2;
124 switch (wav_as.fmt) {
125 case AUD_FMT_S8:
126 case AUD_FMT_U8:
127 bits16 = 0;
128 break;
130 case AUD_FMT_S16:
131 case AUD_FMT_U16:
132 bits16 = 1;
133 break;
134 }
136 hdr[34] = bits16 ? 0x10 : 0x08;
138 wav_as.endianness = 0;
139 audio_pcm_init_info (&hw->info, &wav_as);
141 hw->samples = 1024;
142 wav->pcm_buf = audio_calloc (AUDIO_FUNC, hw->samples, 1 << hw->info.shift);
143 if (!wav->pcm_buf) {
144 dolog ("Could not allocate buffer (%d bytes)\n",
145 hw->samples << hw->info.shift);
146 return -1;
147 }
149 le_store (hdr + 22, hw->info.nchannels, 2);
150 le_store (hdr + 24, hw->info.freq, 4);
151 le_store (hdr + 28, hw->info.freq << (bits16 + stereo), 4);
152 le_store (hdr + 32, 1 << (bits16 + stereo), 2);
154 wav->f = qemu_fopen (conf.wav_path, "wb");
155 if (!wav->f) {
156 dolog ("Failed to open wave file `%s'\nReason: %s\n",
157 conf.wav_path, strerror (errno));
158 qemu_free (wav->pcm_buf);
159 wav->pcm_buf = NULL;
160 return -1;
161 }
163 qemu_put_buffer (wav->f, hdr, sizeof (hdr));
164 return 0;
165 }
167 static void wav_fini_out (HWVoiceOut *hw)
168 {
169 WAVVoiceOut *wav = (WAVVoiceOut *) hw;
170 uint8_t rlen[4];
171 uint8_t dlen[4];
172 uint32_t datalen = wav->total_samples << hw->info.shift;
173 uint32_t rifflen = datalen + 36;
175 if (!wav->f) {
176 return;
177 }
179 le_store (rlen, rifflen, 4);
180 le_store (dlen, datalen, 4);
182 qemu_fseek (wav->f, 4, SEEK_SET);
183 qemu_put_buffer (wav->f, rlen, 4);
185 qemu_fseek (wav->f, 32, SEEK_CUR);
186 qemu_put_buffer (wav->f, dlen, 4);
188 qemu_fclose (wav->f);
189 wav->f = NULL;
191 qemu_free (wav->pcm_buf);
192 wav->pcm_buf = NULL;
193 }
195 static int wav_ctl_out (HWVoiceOut *hw, int cmd, ...)
196 {
197 (void) hw;
198 (void) cmd;
199 return 0;
200 }
202 static void *wav_audio_init (void)
203 {
204 return &conf;
205 }
207 static void wav_audio_fini (void *opaque)
208 {
209 (void) opaque;
210 ldebug ("wav_fini");
211 }
213 struct audio_option wav_options[] = {
214 {"FREQUENCY", AUD_OPT_INT, &conf.settings.freq,
215 "Frequency", NULL, 0},
217 {"FORMAT", AUD_OPT_FMT, &conf.settings.fmt,
218 "Format", NULL, 0},
220 {"DAC_FIXED_CHANNELS", AUD_OPT_INT, &conf.settings.nchannels,
221 "Number of channels (1 - mono, 2 - stereo)", NULL, 0},
223 {"PATH", AUD_OPT_STR, &conf.wav_path,
224 "Path to wave file", NULL, 0},
225 {NULL, 0, NULL, NULL, NULL, 0}
226 };
228 struct audio_pcm_ops wav_pcm_ops = {
229 wav_init_out,
230 wav_fini_out,
231 wav_run_out,
232 wav_write_out,
233 wav_ctl_out,
235 NULL,
236 NULL,
237 NULL,
238 NULL,
239 NULL
240 };
242 struct audio_driver wav_audio_driver = {
243 INIT_FIELD (name = ) "wav",
244 INIT_FIELD (descr = )
245 "WAV renderer http://wikipedia.org/wiki/WAV",
246 INIT_FIELD (options = ) wav_options,
247 INIT_FIELD (init = ) wav_audio_init,
248 INIT_FIELD (fini = ) wav_audio_fini,
249 INIT_FIELD (pcm_ops = ) &wav_pcm_ops,
250 INIT_FIELD (can_be_default = ) 0,
251 INIT_FIELD (max_voices_out = ) 1,
252 INIT_FIELD (max_voices_in = ) 0,
253 INIT_FIELD (voice_size_out = ) sizeof (WAVVoiceOut),
254 INIT_FIELD (voice_size_in = ) 0
255 };