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-rw-r--r--audio/wavaudio.c160
1 files changed, 96 insertions, 64 deletions
diff --git a/audio/wavaudio.c b/audio/wavaudio.c
index 5680161c72..e9bd87872f 100644
--- a/audio/wavaudio.c
+++ b/audio/wavaudio.c
@@ -1,8 +1,8 @@
/*
- * 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
@@ -23,22 +23,16 @@
*/
#include "vl.h"
-#include "audio/audio_int.h"
+#define AUDIO_CAP "wav"
+#include "audio_int.h"
-typedef struct WAVVoice {
- HWVoice hw;
+typedef struct WAVVoiceOut {
+ HWVoiceOut hw;
QEMUFile *f;
int64_t old_ticks;
void *pcm_buf;
int total_samples;
-} WAVVoice;
-
-#define dolog(...) AUD_log ("wav", __VA_ARGS__)
-#ifdef DEBUG
-#define ldebug(...) dolog (__VA_ARGS__)
-#else
-#define ldebug(...)
-#endif
+} WAVVoiceOut;
static struct {
const char *wav_path;
@@ -46,24 +40,27 @@ static struct {
.wav_path = "qemu.wav"
};
-static void wav_hw_run (HWVoice *hw)
+static int wav_run_out (HWVoiceOut *hw)
{
- WAVVoice *wav = (WAVVoice *) hw;
+ WAVVoiceOut *wav = (WAVVoiceOut *) hw;
int rpos, live, decr, samples;
uint8_t *dst;
st_sample_t *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;
+ int64_t bytes = (ticks * hw->info.bytes_per_second) / ticks_per_sec;
- if (bytes > INT_MAX)
- samples = INT_MAX >> hw->shift;
- else
- samples = bytes >> hw->shift;
+ if (bytes > INT_MAX) {
+ samples = INT_MAX >> hw->info.shift;
+ }
+ else {
+ samples = bytes >> hw->info.shift;
+ }
- live = pcm_hw_get_live (hw);
- if (live <= 0)
- return;
+ live = audio_pcm_hw_get_live_out (hw);
+ if (!live) {
+ return 0;
+ }
wav->old_ticks = now;
decr = audio_MIN (live, samples);
@@ -73,25 +70,25 @@ static void wav_hw_run (HWVoice *hw)
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);
+ mixeng_clear (src, convert_samples);
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. */
@@ -104,10 +101,10 @@ 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, int freq, int nchannels, audfmt_e fmt)
{
- WAVVoice *wav = (WAVVoice *) hw;
- int bits16 = 0, stereo = audio_state.fixed_channels == 2;
+ WAVVoiceOut *wav = (WAVVoiceOut *) hw;
+ int bits16;
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,
@@ -115,34 +112,50 @@ static int wav_hw_init (HWVoice *hw, int freq, int nchannels, audfmt_e fmt)
0x00, 0x10, 0x00, 0x64, 0x61, 0x74, 0x61, 0x00, 0x00, 0x00, 0x00
};
- switch (audio_state.fixed_fmt) {
+ freq = audio_state.fixed_freq_out;
+ fmt = audio_state.fixed_fmt_out;
+ nchannels = audio_state.fixed_channels_out;
+
+ switch (fmt) {
case AUD_FMT_S8:
case AUD_FMT_U8:
+ bits16 = 0;
break;
case AUD_FMT_S16:
case AUD_FMT_U16:
bits16 = 1;
break;
+
+ default:
+ dolog ("Internal logic error bad format %d\n", fmt);
+ return -1;
}
hdr[34] = bits16 ? 0x10 : 0x08;
- hw->freq = 44100;
- hw->nchannels = stereo ? 2 : 1;
- hw->fmt = bits16 ? AUD_FMT_S16 : AUD_FMT_U8;
+ audio_pcm_init_info (
+ &hw->info,
+ freq,
+ nchannels,
+ bits16 ? AUD_FMT_S16 : AUD_FMT_U8,
+ audio_need_to_swap_endian (0)
+ );
hw->bufsize = 4096;
wav->pcm_buf = qemu_mallocz (hw->bufsize);
- if (!wav->pcm_buf)
+ if (!wav->pcm_buf) {
+ dolog ("Can not initialize WAV buffer of %d bytes\n",
+ hw->bufsize);
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 + 32, 1 << (bits16 + stereo), 2);
+ le_store (hdr + 22, hw->info.nchannels, 2);
+ le_store (hdr + 24, hw->info.freq, 4);
+ le_store (hdr + 28, hw->info.freq << (bits16 + (nchannels == 2)), 4);
+ le_store (hdr + 32, 1 << (bits16 + (nchannels == 2)), 2);
wav->f = 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;
@@ -153,17 +166,18 @@ static int wav_hw_init (HWVoice *hw, int freq, int nchannels, audfmt_e fmt)
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;
+ int stereo = hw->info.nchannels == 2;
uint8_t rlen[4];
uint8_t dlen[4];
uint32_t rifflen = (wav->total_samples << stereo) + 36;
uint32_t datalen = wav->total_samples << stereo;
- if (!wav->f || !hw->active)
+ if (!wav->f || !hw->active) {
return;
+ }
le_store (rlen, rifflen, 4);
le_store (dlen, datalen, 4);
@@ -181,7 +195,7 @@ static void wav_hw_fini (HWVoice *hw)
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;
@@ -195,23 +209,41 @@ static void *wav_audio_init (void)
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
+struct audio_option wav_options[] = {
+ {"PATH", AUD_OPT_STR, &conf.wav_path,
+ "Path to wave file", NULL, 0},
+ {NULL, 0, NULL, NULL, NULL, 0}
+};
+
+struct audio_pcm_ops wav_pcm_ops = {
+ wav_init_out,
+ wav_fini_out,
+ wav_run_out,
+ wav_write_out,
+ wav_ctl_out,
+
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL
};
-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 = {
+ INIT_FIELD (name = ) "wav",
+ INIT_FIELD (descr = )
+ "WAV renderer http://wikipedia.org/wiki/WAV",
+ INIT_FIELD (options = ) wav_options,
+ INIT_FIELD (init = ) wav_audio_init,
+ INIT_FIELD (fini = ) wav_audio_fini,
+ INIT_FIELD (pcm_ops = ) &wav_pcm_ops,
+ INIT_FIELD (can_be_default = ) 0,
+ INIT_FIELD (max_voices_out = ) 1,
+ INIT_FIELD (max_voices_in = ) 0,
+ INIT_FIELD (voice_size_out = ) sizeof (WAVVoiceOut),
+ INIT_FIELD (voice_size_in = ) 0
};
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-02 21:03:20 +0000