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Commit | Line | Data |
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85571bc7 | 1 | /* |
1d14ffa9 FB |
2 | * QEMU WAV audio driver |
3 | * | |
4 | * Copyright (c) 2004-2005 Vassili Karpov (malc) | |
5 | * | |
85571bc7 FB |
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 | */ | |
0b8fa32f | 24 | |
6086a565 | 25 | #include "qemu/osdep.h" |
87776ab7 | 26 | #include "qemu/host-utils.h" |
0b8fa32f | 27 | #include "qemu/module.h" |
1de7afc9 | 28 | #include "qemu/timer.h" |
0927d166 | 29 | #include "qapi/opts-visitor.h" |
87ecb68b | 30 | #include "audio.h" |
85571bc7 | 31 | |
1d14ffa9 FB |
32 | #define AUDIO_CAP "wav" |
33 | #include "audio_int.h" | |
fb065187 | 34 | |
1d14ffa9 FB |
35 | typedef struct WAVVoiceOut { |
36 | HWVoiceOut hw; | |
27acf660 | 37 | FILE *f; |
fb065187 FB |
38 | int64_t old_ticks; |
39 | void *pcm_buf; | |
40 | int total_samples; | |
1d14ffa9 | 41 | } WAVVoiceOut; |
85571bc7 | 42 | |
bdff253c | 43 | static int wav_run_out (HWVoiceOut *hw, int live) |
85571bc7 | 44 | { |
1d14ffa9 | 45 | WAVVoiceOut *wav = (WAVVoiceOut *) hw; |
bdff253c | 46 | int rpos, decr, samples; |
85571bc7 | 47 | uint8_t *dst; |
1ea879e5 | 48 | struct st_sample *src; |
bc72ad67 | 49 | int64_t now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); |
85571bc7 | 50 | int64_t ticks = now - wav->old_ticks; |
4f4cc0ef | 51 | int64_t bytes = |
73bcb24d | 52 | muldiv64(ticks, hw->info.bytes_per_second, NANOSECONDS_PER_SECOND); |
85571bc7 | 53 | |
1d14ffa9 FB |
54 | if (bytes > INT_MAX) { |
55 | samples = INT_MAX >> hw->info.shift; | |
56 | } | |
57 | else { | |
58 | samples = bytes >> hw->info.shift; | |
59 | } | |
85571bc7 | 60 | |
7372f88d | 61 | wav->old_ticks = now; |
85571bc7 FB |
62 | decr = audio_MIN (live, samples); |
63 | samples = decr; | |
64 | rpos = hw->rpos; | |
65 | while (samples) { | |
66 | int left_till_end_samples = hw->samples - rpos; | |
67 | int convert_samples = audio_MIN (samples, left_till_end_samples); | |
68 | ||
1d14ffa9 FB |
69 | src = hw->mix_buf + rpos; |
70 | dst = advance (wav->pcm_buf, rpos << hw->info.shift); | |
85571bc7 FB |
71 | |
72 | hw->clip (dst, src, convert_samples); | |
27acf660 JQ |
73 | if (fwrite (dst, convert_samples << hw->info.shift, 1, wav->f) != 1) { |
74 | dolog ("wav_run_out: fwrite of %d bytes failed\nReaons: %s\n", | |
75 | convert_samples << hw->info.shift, strerror (errno)); | |
76 | } | |
85571bc7 FB |
77 | |
78 | rpos = (rpos + convert_samples) % hw->samples; | |
79 | samples -= convert_samples; | |
80 | wav->total_samples += convert_samples; | |
81 | } | |
82 | ||
85571bc7 | 83 | hw->rpos = rpos; |
1d14ffa9 | 84 | return decr; |
85571bc7 FB |
85 | } |
86 | ||
1d14ffa9 | 87 | static int wav_write_out (SWVoiceOut *sw, void *buf, int len) |
85571bc7 | 88 | { |
1d14ffa9 | 89 | return audio_pcm_sw_write (sw, buf, len); |
85571bc7 FB |
90 | } |
91 | ||
85571bc7 FB |
92 | /* VICE code: Store number as little endian. */ |
93 | static void le_store (uint8_t *buf, uint32_t val, int len) | |
94 | { | |
95 | int i; | |
96 | for (i = 0; i < len; i++) { | |
97 | buf[i] = (uint8_t) (val & 0xff); | |
98 | val >>= 8; | |
99 | } | |
100 | } | |
101 | ||
5706db1d KZ |
102 | static int wav_init_out(HWVoiceOut *hw, struct audsettings *as, |
103 | void *drv_opaque) | |
85571bc7 | 104 | { |
1d14ffa9 | 105 | WAVVoiceOut *wav = (WAVVoiceOut *) hw; |
c0fe3827 | 106 | int bits16 = 0, stereo = 0; |
85571bc7 FB |
107 | uint8_t hdr[] = { |
108 | 0x52, 0x49, 0x46, 0x46, 0x00, 0x00, 0x00, 0x00, 0x57, 0x41, 0x56, | |
109 | 0x45, 0x66, 0x6d, 0x74, 0x20, 0x10, 0x00, 0x00, 0x00, 0x01, 0x00, | |
110 | 0x02, 0x00, 0x44, 0xac, 0x00, 0x00, 0x10, 0xb1, 0x02, 0x00, 0x04, | |
111 | 0x00, 0x10, 0x00, 0x64, 0x61, 0x74, 0x61, 0x00, 0x00, 0x00, 0x00 | |
112 | }; | |
0927d166 KZ |
113 | Audiodev *dev = drv_opaque; |
114 | AudiodevWavOptions *wopts = &dev->u.wav; | |
115 | struct audsettings wav_as = audiodev_to_audsettings(dev->u.wav.out); | |
116 | const char *wav_path = wopts->has_path ? wopts->path : "qemu.wav"; | |
85571bc7 | 117 | |
c0fe3827 FB |
118 | stereo = wav_as.nchannels == 2; |
119 | switch (wav_as.fmt) { | |
85bc5852 KZ |
120 | case AUDIO_FORMAT_S8: |
121 | case AUDIO_FORMAT_U8: | |
1d14ffa9 | 122 | bits16 = 0; |
85571bc7 FB |
123 | break; |
124 | ||
85bc5852 KZ |
125 | case AUDIO_FORMAT_S16: |
126 | case AUDIO_FORMAT_U16: | |
85571bc7 FB |
127 | bits16 = 1; |
128 | break; | |
f941aa25 | 129 | |
85bc5852 KZ |
130 | case AUDIO_FORMAT_S32: |
131 | case AUDIO_FORMAT_U32: | |
f941aa25 TS |
132 | dolog ("WAVE files can not handle 32bit formats\n"); |
133 | return -1; | |
85bc5852 KZ |
134 | |
135 | default: | |
136 | abort(); | |
85571bc7 FB |
137 | } |
138 | ||
139 | hdr[34] = bits16 ? 0x10 : 0x08; | |
c0fe3827 | 140 | |
d929eba5 FB |
141 | wav_as.endianness = 0; |
142 | audio_pcm_init_info (&hw->info, &wav_as); | |
c0fe3827 FB |
143 | |
144 | hw->samples = 1024; | |
470bcabd | 145 | wav->pcm_buf = audio_calloc(__func__, hw->samples, 1 << hw->info.shift); |
1d14ffa9 | 146 | if (!wav->pcm_buf) { |
c0fe3827 FB |
147 | dolog ("Could not allocate buffer (%d bytes)\n", |
148 | hw->samples << hw->info.shift); | |
85571bc7 | 149 | return -1; |
1d14ffa9 | 150 | } |
85571bc7 | 151 | |
1d14ffa9 FB |
152 | le_store (hdr + 22, hw->info.nchannels, 2); |
153 | le_store (hdr + 24, hw->info.freq, 4); | |
c0fe3827 FB |
154 | le_store (hdr + 28, hw->info.freq << (bits16 + stereo), 4); |
155 | le_store (hdr + 32, 1 << (bits16 + stereo), 2); | |
85571bc7 | 156 | |
0927d166 | 157 | wav->f = fopen(wav_path, "wb"); |
85571bc7 | 158 | if (!wav->f) { |
1d14ffa9 | 159 | dolog ("Failed to open wave file `%s'\nReason: %s\n", |
0927d166 | 160 | wav_path, strerror(errno)); |
7267c094 | 161 | g_free (wav->pcm_buf); |
7372f88d | 162 | wav->pcm_buf = NULL; |
85571bc7 FB |
163 | return -1; |
164 | } | |
165 | ||
27acf660 JQ |
166 | if (fwrite (hdr, sizeof (hdr), 1, wav->f) != 1) { |
167 | dolog ("wav_init_out: failed to write header\nReason: %s\n", | |
168 | strerror(errno)); | |
169 | return -1; | |
170 | } | |
85571bc7 FB |
171 | return 0; |
172 | } | |
173 | ||
1d14ffa9 | 174 | static void wav_fini_out (HWVoiceOut *hw) |
85571bc7 | 175 | { |
1d14ffa9 | 176 | WAVVoiceOut *wav = (WAVVoiceOut *) hw; |
85571bc7 FB |
177 | uint8_t rlen[4]; |
178 | uint8_t dlen[4]; | |
50903530 FB |
179 | uint32_t datalen = wav->total_samples << hw->info.shift; |
180 | uint32_t rifflen = datalen + 36; | |
85571bc7 | 181 | |
c0fe3827 | 182 | if (!wav->f) { |
85571bc7 | 183 | return; |
1d14ffa9 | 184 | } |
85571bc7 FB |
185 | |
186 | le_store (rlen, rifflen, 4); | |
187 | le_store (dlen, datalen, 4); | |
188 | ||
27acf660 JQ |
189 | if (fseek (wav->f, 4, SEEK_SET)) { |
190 | dolog ("wav_fini_out: fseek to rlen failed\nReason: %s\n", | |
191 | strerror(errno)); | |
192 | goto doclose; | |
193 | } | |
194 | if (fwrite (rlen, 4, 1, wav->f) != 1) { | |
195 | dolog ("wav_fini_out: failed to write rlen\nReason: %s\n", | |
196 | strerror (errno)); | |
197 | goto doclose; | |
198 | } | |
199 | if (fseek (wav->f, 32, SEEK_CUR)) { | |
200 | dolog ("wav_fini_out: fseek to dlen failed\nReason: %s\n", | |
201 | strerror (errno)); | |
202 | goto doclose; | |
203 | } | |
204 | if (fwrite (dlen, 4, 1, wav->f) != 1) { | |
205 | dolog ("wav_fini_out: failed to write dlen\nReaons: %s\n", | |
206 | strerror (errno)); | |
207 | goto doclose; | |
208 | } | |
85571bc7 | 209 | |
27acf660 JQ |
210 | doclose: |
211 | if (fclose (wav->f)) { | |
212 | dolog ("wav_fini_out: fclose %p failed\nReason: %s\n", | |
213 | wav->f, strerror (errno)); | |
214 | } | |
85571bc7 | 215 | wav->f = NULL; |
7372f88d | 216 | |
7267c094 | 217 | g_free (wav->pcm_buf); |
7372f88d | 218 | wav->pcm_buf = NULL; |
85571bc7 FB |
219 | } |
220 | ||
1d14ffa9 | 221 | static int wav_ctl_out (HWVoiceOut *hw, int cmd, ...) |
85571bc7 FB |
222 | { |
223 | (void) hw; | |
224 | (void) cmd; | |
225 | return 0; | |
226 | } | |
227 | ||
71830221 | 228 | static void *wav_audio_init(Audiodev *dev) |
85571bc7 | 229 | { |
0927d166 KZ |
230 | assert(dev->driver == AUDIODEV_DRIVER_WAV); |
231 | return dev; | |
85571bc7 FB |
232 | } |
233 | ||
234 | static void wav_audio_fini (void *opaque) | |
235 | { | |
236 | ldebug ("wav_fini"); | |
237 | } | |
238 | ||
35f4b58c | 239 | static struct audio_pcm_ops wav_pcm_ops = { |
1dd3e4d1 JQ |
240 | .init_out = wav_init_out, |
241 | .fini_out = wav_fini_out, | |
242 | .run_out = wav_run_out, | |
243 | .write = wav_write_out, | |
244 | .ctl_out = wav_ctl_out, | |
85571bc7 FB |
245 | }; |
246 | ||
d3893a39 | 247 | static struct audio_driver wav_audio_driver = { |
bee37f32 JQ |
248 | .name = "wav", |
249 | .descr = "WAV renderer http://wikipedia.org/wiki/WAV", | |
bee37f32 JQ |
250 | .init = wav_audio_init, |
251 | .fini = wav_audio_fini, | |
98f9f48c | 252 | .pcm_ops = &wav_pcm_ops, |
bee37f32 JQ |
253 | .can_be_default = 0, |
254 | .max_voices_out = 1, | |
255 | .max_voices_in = 0, | |
256 | .voice_size_out = sizeof (WAVVoiceOut), | |
257 | .voice_size_in = 0 | |
85571bc7 | 258 | }; |
d3893a39 GH |
259 | |
260 | static void register_audio_wav(void) | |
261 | { | |
262 | audio_driver_register(&wav_audio_driver); | |
263 | } | |
264 | type_init(register_audio_wav); |