diff options
Diffstat (limited to 'qemu/audio/wavaudio.c')
-rw-r--r-- | qemu/audio/wavaudio.c | 293 |
1 files changed, 0 insertions, 293 deletions
diff --git a/qemu/audio/wavaudio.c b/qemu/audio/wavaudio.c deleted file mode 100644 index 345952e51..000000000 --- a/qemu/audio/wavaudio.c +++ /dev/null @@ -1,293 +0,0 @@ -/* - * QEMU WAV audio driver - * - * Copyright (c) 2004-2005 Vassili Karpov (malc) - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ -#include "qemu/osdep.h" -#include "hw/hw.h" -#include "qemu/timer.h" -#include "audio.h" - -#define AUDIO_CAP "wav" -#include "audio_int.h" - -typedef struct WAVVoiceOut { - HWVoiceOut hw; - FILE *f; - int64_t old_ticks; - void *pcm_buf; - int total_samples; -} WAVVoiceOut; - -typedef struct { - struct audsettings settings; - const char *wav_path; -} WAVConf; - -static int wav_run_out (HWVoiceOut *hw, int live) -{ - WAVVoiceOut *wav = (WAVVoiceOut *) hw; - int rpos, decr, samples; - uint8_t *dst; - struct st_sample *src; - int64_t now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); - int64_t ticks = now - wav->old_ticks; - int64_t bytes = - muldiv64(ticks, hw->info.bytes_per_second, NANOSECONDS_PER_SECOND); - - if (bytes > INT_MAX) { - samples = INT_MAX >> hw->info.shift; - } - else { - samples = bytes >> hw->info.shift; - } - - wav->old_ticks = now; - decr = audio_MIN (live, samples); - samples = decr; - rpos = hw->rpos; - while (samples) { - int left_till_end_samples = hw->samples - rpos; - int convert_samples = audio_MIN (samples, left_till_end_samples); - - src = hw->mix_buf + rpos; - dst = advance (wav->pcm_buf, rpos << hw->info.shift); - - hw->clip (dst, src, convert_samples); - if (fwrite (dst, convert_samples << hw->info.shift, 1, wav->f) != 1) { - dolog ("wav_run_out: fwrite of %d bytes failed\nReaons: %s\n", - convert_samples << hw->info.shift, strerror (errno)); - } - - rpos = (rpos + convert_samples) % hw->samples; - samples -= convert_samples; - wav->total_samples += convert_samples; - } - - hw->rpos = rpos; - return decr; -} - -static int wav_write_out (SWVoiceOut *sw, void *buf, int len) -{ - return audio_pcm_sw_write (sw, buf, len); -} - -/* VICE code: Store number as little endian. */ -static void le_store (uint8_t *buf, uint32_t val, int len) -{ - int i; - for (i = 0; i < len; i++) { - buf[i] = (uint8_t) (val & 0xff); - val >>= 8; - } -} - -static int wav_init_out(HWVoiceOut *hw, struct audsettings *as, - void *drv_opaque) -{ - WAVVoiceOut *wav = (WAVVoiceOut *) hw; - int bits16 = 0, stereo = 0; - uint8_t hdr[] = { - 0x52, 0x49, 0x46, 0x46, 0x00, 0x00, 0x00, 0x00, 0x57, 0x41, 0x56, - 0x45, 0x66, 0x6d, 0x74, 0x20, 0x10, 0x00, 0x00, 0x00, 0x01, 0x00, - 0x02, 0x00, 0x44, 0xac, 0x00, 0x00, 0x10, 0xb1, 0x02, 0x00, 0x04, - 0x00, 0x10, 0x00, 0x64, 0x61, 0x74, 0x61, 0x00, 0x00, 0x00, 0x00 - }; - WAVConf *conf = drv_opaque; - struct audsettings wav_as = conf->settings; - - stereo = wav_as.nchannels == 2; - switch (wav_as.fmt) { - case AUD_FMT_S8: - case AUD_FMT_U8: - bits16 = 0; - break; - - case AUD_FMT_S16: - case AUD_FMT_U16: - bits16 = 1; - break; - - case AUD_FMT_S32: - case AUD_FMT_U32: - dolog ("WAVE files can not handle 32bit formats\n"); - return -1; - } - - hdr[34] = bits16 ? 0x10 : 0x08; - - wav_as.endianness = 0; - audio_pcm_init_info (&hw->info, &wav_as); - - hw->samples = 1024; - wav->pcm_buf = audio_calloc (AUDIO_FUNC, hw->samples, 1 << hw->info.shift); - if (!wav->pcm_buf) { - dolog ("Could not allocate buffer (%d bytes)\n", - hw->samples << hw->info.shift); - return -1; - } - - le_store (hdr + 22, hw->info.nchannels, 2); - le_store (hdr + 24, hw->info.freq, 4); - le_store (hdr + 28, hw->info.freq << (bits16 + stereo), 4); - le_store (hdr + 32, 1 << (bits16 + stereo), 2); - - wav->f = fopen (conf->wav_path, "wb"); - if (!wav->f) { - dolog ("Failed to open wave file `%s'\nReason: %s\n", - conf->wav_path, strerror (errno)); - g_free (wav->pcm_buf); - wav->pcm_buf = NULL; - return -1; - } - - if (fwrite (hdr, sizeof (hdr), 1, wav->f) != 1) { - dolog ("wav_init_out: failed to write header\nReason: %s\n", - strerror(errno)); - return -1; - } - return 0; -} - -static void wav_fini_out (HWVoiceOut *hw) -{ - WAVVoiceOut *wav = (WAVVoiceOut *) hw; - uint8_t rlen[4]; - uint8_t dlen[4]; - uint32_t datalen = wav->total_samples << hw->info.shift; - uint32_t rifflen = datalen + 36; - - if (!wav->f) { - return; - } - - le_store (rlen, rifflen, 4); - le_store (dlen, datalen, 4); - - if (fseek (wav->f, 4, SEEK_SET)) { - dolog ("wav_fini_out: fseek to rlen failed\nReason: %s\n", - strerror(errno)); - goto doclose; - } - if (fwrite (rlen, 4, 1, wav->f) != 1) { - dolog ("wav_fini_out: failed to write rlen\nReason: %s\n", - strerror (errno)); - goto doclose; - } - if (fseek (wav->f, 32, SEEK_CUR)) { - dolog ("wav_fini_out: fseek to dlen failed\nReason: %s\n", - strerror (errno)); - goto doclose; - } - if (fwrite (dlen, 4, 1, wav->f) != 1) { - dolog ("wav_fini_out: failed to write dlen\nReaons: %s\n", - strerror (errno)); - goto doclose; - } - - doclose: - if (fclose (wav->f)) { - dolog ("wav_fini_out: fclose %p failed\nReason: %s\n", - wav->f, strerror (errno)); - } - wav->f = NULL; - - g_free (wav->pcm_buf); - wav->pcm_buf = NULL; -} - -static int wav_ctl_out (HWVoiceOut *hw, int cmd, ...) -{ - (void) hw; - (void) cmd; - return 0; -} - -static WAVConf glob_conf = { - .settings.freq = 44100, - .settings.nchannels = 2, - .settings.fmt = AUD_FMT_S16, - .wav_path = "qemu.wav" -}; - -static void *wav_audio_init (void) -{ - WAVConf *conf = g_malloc(sizeof(WAVConf)); - *conf = glob_conf; - return conf; -} - -static void wav_audio_fini (void *opaque) -{ - ldebug ("wav_fini"); - g_free(opaque); -} - -static struct audio_option wav_options[] = { - { - .name = "FREQUENCY", - .tag = AUD_OPT_INT, - .valp = &glob_conf.settings.freq, - .descr = "Frequency" - }, - { - .name = "FORMAT", - .tag = AUD_OPT_FMT, - .valp = &glob_conf.settings.fmt, - .descr = "Format" - }, - { - .name = "DAC_FIXED_CHANNELS", - .tag = AUD_OPT_INT, - .valp = &glob_conf.settings.nchannels, - .descr = "Number of channels (1 - mono, 2 - stereo)" - }, - { - .name = "PATH", - .tag = AUD_OPT_STR, - .valp = &glob_conf.wav_path, - .descr = "Path to wave file" - }, - { /* End of list */ } -}; - -static struct audio_pcm_ops wav_pcm_ops = { - .init_out = wav_init_out, - .fini_out = wav_fini_out, - .run_out = wav_run_out, - .write = wav_write_out, - .ctl_out = wav_ctl_out, -}; - -struct audio_driver wav_audio_driver = { - .name = "wav", - .descr = "WAV renderer http://wikipedia.org/wiki/WAV", - .options = wav_options, - .init = wav_audio_init, - .fini = wav_audio_fini, - .pcm_ops = &wav_pcm_ops, - .can_be_default = 0, - .max_voices_out = 1, - .max_voices_in = 0, - .voice_size_out = sizeof (WAVVoiceOut), - .voice_size_in = 0 -}; |