bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 1 | /* |
bellard | 1d14ffa | 2005-10-30 18:58:22 +0000 | [diff] [blame] | 2 | * QEMU WAV audio driver |
| 3 | * |
| 4 | * Copyright (c) 2004-2005 Vassili Karpov (malc) |
| 5 | * |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 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" |
| 25 | |
bellard | 1d14ffa | 2005-10-30 18:58:22 +0000 | [diff] [blame] | 26 | #define AUDIO_CAP "wav" |
| 27 | #include "audio_int.h" |
bellard | fb06518 | 2004-11-09 23:09:44 +0000 | [diff] [blame] | 28 | |
bellard | 1d14ffa | 2005-10-30 18:58:22 +0000 | [diff] [blame] | 29 | typedef struct WAVVoiceOut { |
| 30 | HWVoiceOut hw; |
bellard | fb06518 | 2004-11-09 23:09:44 +0000 | [diff] [blame] | 31 | QEMUFile *f; |
| 32 | int64_t old_ticks; |
| 33 | void *pcm_buf; |
| 34 | int total_samples; |
bellard | 1d14ffa | 2005-10-30 18:58:22 +0000 | [diff] [blame] | 35 | } WAVVoiceOut; |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 36 | |
| 37 | static struct { |
bellard | c0fe382 | 2005-11-05 18:55:28 +0000 | [diff] [blame] | 38 | audsettings_t settings; |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 39 | const char *wav_path; |
| 40 | } conf = { |
bellard | c0fe382 | 2005-11-05 18:55:28 +0000 | [diff] [blame] | 41 | { |
| 42 | 44100, |
| 43 | 2, |
ths | f941aa2 | 2007-02-17 22:19:29 +0000 | [diff] [blame] | 44 | AUD_FMT_S16, |
| 45 | AUDIO_HOST_ENDIANNESS |
bellard | c0fe382 | 2005-11-05 18:55:28 +0000 | [diff] [blame] | 46 | }, |
| 47 | "qemu.wav" |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 48 | }; |
| 49 | |
bellard | 1d14ffa | 2005-10-30 18:58:22 +0000 | [diff] [blame] | 50 | static int wav_run_out (HWVoiceOut *hw) |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 51 | { |
bellard | 1d14ffa | 2005-10-30 18:58:22 +0000 | [diff] [blame] | 52 | WAVVoiceOut *wav = (WAVVoiceOut *) hw; |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 53 | int rpos, live, decr, samples; |
| 54 | uint8_t *dst; |
| 55 | st_sample_t *src; |
| 56 | int64_t now = qemu_get_clock (vm_clock); |
| 57 | int64_t ticks = now - wav->old_ticks; |
bellard | 1d14ffa | 2005-10-30 18:58:22 +0000 | [diff] [blame] | 58 | int64_t bytes = (ticks * hw->info.bytes_per_second) / ticks_per_sec; |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 59 | |
bellard | 1d14ffa | 2005-10-30 18:58:22 +0000 | [diff] [blame] | 60 | if (bytes > INT_MAX) { |
| 61 | samples = INT_MAX >> hw->info.shift; |
| 62 | } |
| 63 | else { |
| 64 | samples = bytes >> hw->info.shift; |
| 65 | } |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 66 | |
bellard | 1d14ffa | 2005-10-30 18:58:22 +0000 | [diff] [blame] | 67 | live = audio_pcm_hw_get_live_out (hw); |
| 68 | if (!live) { |
| 69 | return 0; |
| 70 | } |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 71 | |
bellard | 7372f88 | 2004-11-11 16:55:09 +0000 | [diff] [blame] | 72 | wav->old_ticks = now; |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 73 | decr = audio_MIN (live, samples); |
| 74 | samples = decr; |
| 75 | rpos = hw->rpos; |
| 76 | while (samples) { |
| 77 | int left_till_end_samples = hw->samples - rpos; |
| 78 | int convert_samples = audio_MIN (samples, left_till_end_samples); |
| 79 | |
bellard | 1d14ffa | 2005-10-30 18:58:22 +0000 | [diff] [blame] | 80 | src = hw->mix_buf + rpos; |
| 81 | dst = advance (wav->pcm_buf, rpos << hw->info.shift); |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 82 | |
| 83 | hw->clip (dst, src, convert_samples); |
bellard | 1d14ffa | 2005-10-30 18:58:22 +0000 | [diff] [blame] | 84 | qemu_put_buffer (wav->f, dst, convert_samples << hw->info.shift); |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 85 | |
| 86 | rpos = (rpos + convert_samples) % hw->samples; |
| 87 | samples -= convert_samples; |
| 88 | wav->total_samples += convert_samples; |
| 89 | } |
| 90 | |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 91 | hw->rpos = rpos; |
bellard | 1d14ffa | 2005-10-30 18:58:22 +0000 | [diff] [blame] | 92 | return decr; |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 93 | } |
| 94 | |
bellard | 1d14ffa | 2005-10-30 18:58:22 +0000 | [diff] [blame] | 95 | static int wav_write_out (SWVoiceOut *sw, void *buf, int len) |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 96 | { |
bellard | 1d14ffa | 2005-10-30 18:58:22 +0000 | [diff] [blame] | 97 | return audio_pcm_sw_write (sw, buf, len); |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 98 | } |
| 99 | |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 100 | /* VICE code: Store number as little endian. */ |
| 101 | static void le_store (uint8_t *buf, uint32_t val, int len) |
| 102 | { |
| 103 | int i; |
| 104 | for (i = 0; i < len; i++) { |
| 105 | buf[i] = (uint8_t) (val & 0xff); |
| 106 | val >>= 8; |
| 107 | } |
| 108 | } |
| 109 | |
bellard | c0fe382 | 2005-11-05 18:55:28 +0000 | [diff] [blame] | 110 | static int wav_init_out (HWVoiceOut *hw, audsettings_t *as) |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 111 | { |
bellard | 1d14ffa | 2005-10-30 18:58:22 +0000 | [diff] [blame] | 112 | WAVVoiceOut *wav = (WAVVoiceOut *) hw; |
bellard | c0fe382 | 2005-11-05 18:55:28 +0000 | [diff] [blame] | 113 | int bits16 = 0, stereo = 0; |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 114 | uint8_t hdr[] = { |
| 115 | 0x52, 0x49, 0x46, 0x46, 0x00, 0x00, 0x00, 0x00, 0x57, 0x41, 0x56, |
| 116 | 0x45, 0x66, 0x6d, 0x74, 0x20, 0x10, 0x00, 0x00, 0x00, 0x01, 0x00, |
| 117 | 0x02, 0x00, 0x44, 0xac, 0x00, 0x00, 0x10, 0xb1, 0x02, 0x00, 0x04, |
| 118 | 0x00, 0x10, 0x00, 0x64, 0x61, 0x74, 0x61, 0x00, 0x00, 0x00, 0x00 |
| 119 | }; |
bellard | c0fe382 | 2005-11-05 18:55:28 +0000 | [diff] [blame] | 120 | audsettings_t wav_as = conf.settings; |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 121 | |
bellard | c0fe382 | 2005-11-05 18:55:28 +0000 | [diff] [blame] | 122 | (void) as; |
bellard | 1d14ffa | 2005-10-30 18:58:22 +0000 | [diff] [blame] | 123 | |
bellard | c0fe382 | 2005-11-05 18:55:28 +0000 | [diff] [blame] | 124 | stereo = wav_as.nchannels == 2; |
| 125 | switch (wav_as.fmt) { |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 126 | case AUD_FMT_S8: |
| 127 | case AUD_FMT_U8: |
bellard | 1d14ffa | 2005-10-30 18:58:22 +0000 | [diff] [blame] | 128 | bits16 = 0; |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 129 | break; |
| 130 | |
| 131 | case AUD_FMT_S16: |
| 132 | case AUD_FMT_U16: |
| 133 | bits16 = 1; |
| 134 | break; |
ths | f941aa2 | 2007-02-17 22:19:29 +0000 | [diff] [blame] | 135 | |
| 136 | case AUD_FMT_S32: |
| 137 | case AUD_FMT_U32: |
| 138 | dolog ("WAVE files can not handle 32bit formats\n"); |
| 139 | return -1; |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 140 | } |
| 141 | |
| 142 | hdr[34] = bits16 ? 0x10 : 0x08; |
bellard | c0fe382 | 2005-11-05 18:55:28 +0000 | [diff] [blame] | 143 | |
bellard | d929eba | 2006-07-04 21:47:22 +0000 | [diff] [blame] | 144 | wav_as.endianness = 0; |
| 145 | audio_pcm_init_info (&hw->info, &wav_as); |
bellard | c0fe382 | 2005-11-05 18:55:28 +0000 | [diff] [blame] | 146 | |
| 147 | hw->samples = 1024; |
| 148 | wav->pcm_buf = audio_calloc (AUDIO_FUNC, hw->samples, 1 << hw->info.shift); |
bellard | 1d14ffa | 2005-10-30 18:58:22 +0000 | [diff] [blame] | 149 | if (!wav->pcm_buf) { |
bellard | c0fe382 | 2005-11-05 18:55:28 +0000 | [diff] [blame] | 150 | dolog ("Could not allocate buffer (%d bytes)\n", |
| 151 | hw->samples << hw->info.shift); |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 152 | return -1; |
bellard | 1d14ffa | 2005-10-30 18:58:22 +0000 | [diff] [blame] | 153 | } |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 154 | |
bellard | 1d14ffa | 2005-10-30 18:58:22 +0000 | [diff] [blame] | 155 | le_store (hdr + 22, hw->info.nchannels, 2); |
| 156 | le_store (hdr + 24, hw->info.freq, 4); |
bellard | c0fe382 | 2005-11-05 18:55:28 +0000 | [diff] [blame] | 157 | le_store (hdr + 28, hw->info.freq << (bits16 + stereo), 4); |
| 158 | le_store (hdr + 32, 1 << (bits16 + stereo), 2); |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 159 | |
bellard | e70332b | 2006-08-05 21:31:46 +0000 | [diff] [blame] | 160 | wav->f = qemu_fopen (conf.wav_path, "wb"); |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 161 | if (!wav->f) { |
bellard | 1d14ffa | 2005-10-30 18:58:22 +0000 | [diff] [blame] | 162 | dolog ("Failed to open wave file `%s'\nReason: %s\n", |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 163 | conf.wav_path, strerror (errno)); |
bellard | 7372f88 | 2004-11-11 16:55:09 +0000 | [diff] [blame] | 164 | qemu_free (wav->pcm_buf); |
| 165 | wav->pcm_buf = NULL; |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 166 | return -1; |
| 167 | } |
| 168 | |
| 169 | qemu_put_buffer (wav->f, hdr, sizeof (hdr)); |
| 170 | return 0; |
| 171 | } |
| 172 | |
bellard | 1d14ffa | 2005-10-30 18:58:22 +0000 | [diff] [blame] | 173 | static void wav_fini_out (HWVoiceOut *hw) |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 174 | { |
bellard | 1d14ffa | 2005-10-30 18:58:22 +0000 | [diff] [blame] | 175 | WAVVoiceOut *wav = (WAVVoiceOut *) hw; |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 176 | uint8_t rlen[4]; |
| 177 | uint8_t dlen[4]; |
bellard | 5090353 | 2005-11-20 16:22:16 +0000 | [diff] [blame] | 178 | uint32_t datalen = wav->total_samples << hw->info.shift; |
| 179 | uint32_t rifflen = datalen + 36; |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 180 | |
bellard | c0fe382 | 2005-11-05 18:55:28 +0000 | [diff] [blame] | 181 | if (!wav->f) { |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 182 | return; |
bellard | 1d14ffa | 2005-10-30 18:58:22 +0000 | [diff] [blame] | 183 | } |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 184 | |
| 185 | le_store (rlen, rifflen, 4); |
| 186 | le_store (dlen, datalen, 4); |
| 187 | |
| 188 | qemu_fseek (wav->f, 4, SEEK_SET); |
| 189 | qemu_put_buffer (wav->f, rlen, 4); |
| 190 | |
| 191 | qemu_fseek (wav->f, 32, SEEK_CUR); |
| 192 | qemu_put_buffer (wav->f, dlen, 4); |
| 193 | |
bellard | e70332b | 2006-08-05 21:31:46 +0000 | [diff] [blame] | 194 | qemu_fclose (wav->f); |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 195 | wav->f = NULL; |
bellard | 7372f88 | 2004-11-11 16:55:09 +0000 | [diff] [blame] | 196 | |
| 197 | qemu_free (wav->pcm_buf); |
| 198 | wav->pcm_buf = NULL; |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 199 | } |
| 200 | |
bellard | 1d14ffa | 2005-10-30 18:58:22 +0000 | [diff] [blame] | 201 | static int wav_ctl_out (HWVoiceOut *hw, int cmd, ...) |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 202 | { |
| 203 | (void) hw; |
| 204 | (void) cmd; |
| 205 | return 0; |
| 206 | } |
| 207 | |
| 208 | static void *wav_audio_init (void) |
| 209 | { |
| 210 | return &conf; |
| 211 | } |
| 212 | |
| 213 | static void wav_audio_fini (void *opaque) |
| 214 | { |
bellard | 1d14ffa | 2005-10-30 18:58:22 +0000 | [diff] [blame] | 215 | (void) opaque; |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 216 | ldebug ("wav_fini"); |
| 217 | } |
| 218 | |
bellard | 1d14ffa | 2005-10-30 18:58:22 +0000 | [diff] [blame] | 219 | struct audio_option wav_options[] = { |
bellard | c0fe382 | 2005-11-05 18:55:28 +0000 | [diff] [blame] | 220 | {"FREQUENCY", AUD_OPT_INT, &conf.settings.freq, |
| 221 | "Frequency", NULL, 0}, |
| 222 | |
| 223 | {"FORMAT", AUD_OPT_FMT, &conf.settings.fmt, |
| 224 | "Format", NULL, 0}, |
| 225 | |
| 226 | {"DAC_FIXED_CHANNELS", AUD_OPT_INT, &conf.settings.nchannels, |
| 227 | "Number of channels (1 - mono, 2 - stereo)", NULL, 0}, |
| 228 | |
bellard | 1d14ffa | 2005-10-30 18:58:22 +0000 | [diff] [blame] | 229 | {"PATH", AUD_OPT_STR, &conf.wav_path, |
| 230 | "Path to wave file", NULL, 0}, |
| 231 | {NULL, 0, NULL, NULL, NULL, 0} |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 232 | }; |
| 233 | |
bellard | 1d14ffa | 2005-10-30 18:58:22 +0000 | [diff] [blame] | 234 | struct audio_pcm_ops wav_pcm_ops = { |
| 235 | wav_init_out, |
| 236 | wav_fini_out, |
| 237 | wav_run_out, |
| 238 | wav_write_out, |
| 239 | wav_ctl_out, |
| 240 | |
| 241 | NULL, |
| 242 | NULL, |
| 243 | NULL, |
| 244 | NULL, |
| 245 | NULL |
| 246 | }; |
| 247 | |
| 248 | struct audio_driver wav_audio_driver = { |
| 249 | INIT_FIELD (name = ) "wav", |
| 250 | INIT_FIELD (descr = ) |
| 251 | "WAV renderer http://wikipedia.org/wiki/WAV", |
| 252 | INIT_FIELD (options = ) wav_options, |
| 253 | INIT_FIELD (init = ) wav_audio_init, |
| 254 | INIT_FIELD (fini = ) wav_audio_fini, |
| 255 | INIT_FIELD (pcm_ops = ) &wav_pcm_ops, |
| 256 | INIT_FIELD (can_be_default = ) 0, |
| 257 | INIT_FIELD (max_voices_out = ) 1, |
| 258 | INIT_FIELD (max_voices_in = ) 0, |
| 259 | INIT_FIELD (voice_size_out = ) sizeof (WAVVoiceOut), |
| 260 | INIT_FIELD (voice_size_in = ) 0 |
bellard | 85571bc | 2004-11-07 18:04:02 +0000 | [diff] [blame] | 261 | }; |