/*
- * QEMU WAV audio output driver
- *
- * Copyright (c) 2004 Vassili Karpov (malc)
- *
+ * 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
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
-#include "vl.h"
+#include "hw/hw.h"
+#include "qemu-timer.h"
+#include "audio.h"
#define AUDIO_CAP "wav"
-#include "audio/audio.h"
-#include "audio/wavaudio.h"
+#include "audio_int.h"
+
+typedef struct WAVVoiceOut {
+ HWVoiceOut hw;
+ QEMUFile *f;
+ int64_t old_ticks;
+ void *pcm_buf;
+ int total_samples;
+} WAVVoiceOut;
static struct {
+ struct audsettings settings;
const char *wav_path;
} conf = {
- .wav_path = "qemu.wav"
+ .settings.freq = 44100,
+ .settings.nchannels = 2,
+ .settings.fmt = AUD_FMT_S16,
+ .wav_path = "qemu.wav"
};
-static void wav_hw_run (HWVoice *hw)
+static int wav_run_out (HWVoiceOut *hw, int live)
{
- WAVVoice *wav = (WAVVoice *) hw;
- int rpos, live, decr, samples;
+ WAVVoiceOut *wav = (WAVVoiceOut *) hw;
+ int rpos, decr, samples;
uint8_t *dst;
- st_sample_t *src;
+ struct st_sample *src;
int64_t now = qemu_get_clock (vm_clock);
int64_t ticks = now - wav->old_ticks;
- int64_t bytes = (ticks * hw->bytes_per_second) / ticks_per_sec;
- wav->old_ticks = now;
-
- if (bytes > INT_MAX)
- samples = INT_MAX >> hw->shift;
- else
- samples = bytes >> hw->shift;
+ int64_t bytes =
+ muldiv64 (ticks, hw->info.bytes_per_second, get_ticks_per_sec ());
- live = pcm_hw_get_live (hw);
- if (live <= 0)
- return;
+ 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;
int left_till_end_samples = hw->samples - rpos;
int convert_samples = audio_MIN (samples, left_till_end_samples);
- src = advance (hw->mix_buf, rpos * sizeof (st_sample_t));
- dst = advance (wav->pcm_buf, rpos << hw->shift);
+ src = hw->mix_buf + rpos;
+ dst = advance (wav->pcm_buf, rpos << hw->info.shift);
hw->clip (dst, src, convert_samples);
- qemu_put_buffer (wav->f, dst, convert_samples << hw->shift);
- memset (src, 0, convert_samples * sizeof (st_sample_t));
+ qemu_put_buffer (wav->f, dst, convert_samples << hw->info.shift);
rpos = (rpos + convert_samples) % hw->samples;
samples -= convert_samples;
wav->total_samples += convert_samples;
}
- pcm_hw_dec_live (hw, decr);
hw->rpos = rpos;
+ return decr;
}
-static int wav_hw_write (SWVoice *sw, void *buf, int len)
+static int wav_write_out (SWVoiceOut *sw, void *buf, int len)
{
- return pcm_hw_write (sw, buf, 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)
{
}
}
-static int wav_hw_init (HWVoice *hw, int freq, int nchannels, audfmt_e fmt)
+static int wav_init_out (HWVoiceOut *hw, struct audsettings *as)
{
- WAVVoice *wav = (WAVVoice *) hw;
- int bits16 = 0, stereo = audio_state.fixed_channels == 2;
+ 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
};
+ struct audsettings wav_as = conf.settings;
+
+ (void) as;
- switch (audio_state.fixed_fmt) {
+ 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;
- hw->freq = 44100;
- hw->nchannels = stereo ? 2 : 1;
- hw->fmt = bits16 ? AUD_FMT_S16 : AUD_FMT_U8;
- hw->bufsize = 4096;
- wav->pcm_buf = qemu_mallocz (hw->bufsize);
- if (!wav->pcm_buf)
+
+ 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->nchannels, 2);
- le_store (hdr + 24, hw->freq, 4);
- le_store (hdr + 28, hw->freq << (bits16 + stereo), 4);
+ 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");
+ wav->f = qemu_fopen (conf.wav_path, "wb");
if (!wav->f) {
- dolog ("failed to open wave file `%s'\nReason: %s\n",
+ dolog ("Failed to open wave file `%s'\nReason: %s\n",
conf.wav_path, strerror (errno));
+ qemu_free (wav->pcm_buf);
+ wav->pcm_buf = NULL;
return -1;
}
return 0;
}
-static void wav_hw_fini (HWVoice *hw)
+static void wav_fini_out (HWVoiceOut *hw)
{
- WAVVoice *wav = (WAVVoice *) hw;
- int stereo = hw->nchannels == 2;
+ WAVVoiceOut *wav = (WAVVoiceOut *) hw;
uint8_t rlen[4];
uint8_t dlen[4];
- uint32_t rifflen = (wav->total_samples << stereo) + 36;
- uint32_t datalen = wav->total_samples << stereo;
+ uint32_t datalen = wav->total_samples << hw->info.shift;
+ uint32_t rifflen = datalen + 36;
- if (!wav->f || !hw->active)
+ if (!wav->f) {
return;
+ }
le_store (rlen, rifflen, 4);
le_store (dlen, datalen, 4);
qemu_fseek (wav->f, 32, SEEK_CUR);
qemu_put_buffer (wav->f, dlen, 4);
- fclose (wav->f);
+ qemu_fclose (wav->f);
wav->f = NULL;
+
+ qemu_free (wav->pcm_buf);
+ wav->pcm_buf = NULL;
}
-static int wav_hw_ctl (HWVoice *hw, int cmd, ...)
+static int wav_ctl_out (HWVoiceOut *hw, int cmd, ...)
{
(void) hw;
(void) cmd;
static void wav_audio_fini (void *opaque)
{
+ (void) opaque;
ldebug ("wav_fini");
}
-struct pcm_ops wav_pcm_ops = {
- wav_hw_init,
- wav_hw_fini,
- wav_hw_run,
- wav_hw_write,
- wav_hw_ctl
+static struct audio_option wav_options[] = {
+ {
+ .name = "FREQUENCY",
+ .tag = AUD_OPT_INT,
+ .valp = &conf.settings.freq,
+ .descr = "Frequency"
+ },
+ {
+ .name = "FORMAT",
+ .tag = AUD_OPT_FMT,
+ .valp = &conf.settings.fmt,
+ .descr = "Format"
+ },
+ {
+ .name = "DAC_FIXED_CHANNELS",
+ .tag = AUD_OPT_INT,
+ .valp = &conf.settings.nchannels,
+ .descr = "Number of channels (1 - mono, 2 - stereo)"
+ },
+ {
+ .name = "PATH",
+ .tag = AUD_OPT_STR,
+ .valp = &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_output_driver wav_output_driver = {
- "wav",
- wav_audio_init,
- wav_audio_fini,
- &wav_pcm_ops,
- 1,
- 1,
- sizeof (WAVVoice)
+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
};
projects / qemu.git / blobdiff