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-rw-r--r--audio/fmodaudio.c457
1 files changed, 457 insertions, 0 deletions
diff --git a/audio/fmodaudio.c b/audio/fmodaudio.c
new file mode 100644
index 0000000000..7457033f92
--- /dev/null
+++ b/audio/fmodaudio.c
@@ -0,0 +1,457 @@
+/*
+ * QEMU FMOD audio output driver
+ *
+ * Copyright (c) 2004 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 <fmod.h>
+#include <fmod_errors.h>
+#include "vl.h"
+
+#define AUDIO_CAP "fmod"
+#include "audio/audio.h"
+#include "audio/fmodaudio.h"
+
+#define QC_FMOD_DRV "QEMU_FMOD_DRV"
+#define QC_FMOD_FREQ "QEMU_FMOD_FREQ"
+#define QC_FMOD_SAMPLES "QEMU_FMOD_SAMPLES"
+#define QC_FMOD_CHANNELS "QEMU_FMOD_CHANNELS"
+#define QC_FMOD_BUFSIZE "QEMU_FMOD_BUFSIZE"
+#define QC_FMOD_THRESHOLD "QEMU_FMOD_THRESHOLD"
+
+static struct {
+ int nb_samples;
+ int freq;
+ int nb_channels;
+ int bufsize;
+ int threshold;
+} conf = {
+ 2048,
+ 44100,
+ 1,
+ 0,
+ 128
+};
+
+#define errstr() FMOD_ErrorString (FSOUND_GetError ())
+
+static int fmod_hw_write (SWVoice *sw, void *buf, int len)
+{
+ return pcm_hw_write (sw, buf, len);
+}
+
+static void fmod_clear_sample (FMODVoice *fmd)
+{
+ HWVoice *hw = &fmd->hw;
+ int status;
+ void *p1 = 0, *p2 = 0;
+ unsigned int len1 = 0, len2 = 0;
+
+ status = FSOUND_Sample_Lock (
+ fmd->fmod_sample,
+ 0,
+ hw->samples << hw->shift,
+ &p1,
+ &p2,
+ &len1,
+ &len2
+ );
+
+ if (!status) {
+ dolog ("Failed to lock sample\nReason: %s\n", errstr ());
+ return;
+ }
+
+ if ((len1 & hw->align) || (len2 & hw->align)) {
+ dolog ("Locking sample returned unaligned length %d, %d\n",
+ len1, len2);
+ goto fail;
+ }
+
+ if (len1 + len2 != hw->samples << hw->shift) {
+ dolog ("Locking sample returned incomplete length %d, %d\n",
+ len1 + len2, hw->samples << hw->shift);
+ goto fail;
+ }
+ pcm_hw_clear (hw, p1, hw->samples);
+
+ fail:
+ status = FSOUND_Sample_Unlock (fmd->fmod_sample, p1, p2, len1, len2);
+ if (!status) {
+ dolog ("Failed to unlock sample\nReason: %s\n", errstr ());
+ }
+}
+
+static int fmod_write_sample (HWVoice *hw, uint8_t *dst, st_sample_t *src,
+ int src_size, int src_pos, int dst_len)
+{
+ int src_len1 = dst_len, src_len2 = 0, pos = src_pos + dst_len;
+ st_sample_t *src1 = src + src_pos, *src2 = 0;
+
+ if (src_pos + dst_len > src_size) {
+ src_len1 = src_size - src_pos;
+ src2 = src;
+ src_len2 = dst_len - src_len1;
+ pos = src_len2;
+ }
+
+ if (src_len1) {
+ hw->clip (dst, src1, src_len1);
+ memset (src1, 0, src_len1 * sizeof (st_sample_t));
+ advance (dst, src_len1);
+ }
+
+ if (src_len2) {
+ hw->clip (dst, src2, src_len2);
+ memset (src2, 0, src_len2 * sizeof (st_sample_t));
+ }
+ return pos;
+}
+
+static int fmod_unlock_sample (FMODVoice *fmd, void *p1, void *p2,
+ unsigned int blen1, unsigned int blen2)
+{
+ int status = FSOUND_Sample_Unlock (fmd->fmod_sample, p1, p2, blen1, blen2);
+ if (!status) {
+ dolog ("Failed to unlock sample\nReason: %s\n", errstr ());
+ return -1;
+ }
+ return 0;
+}
+
+static int fmod_lock_sample (FMODVoice *fmd, int pos, int len,
+ void **p1, void **p2,
+ unsigned int *blen1, unsigned int *blen2)
+{
+ HWVoice *hw = &fmd->hw;
+ int status;
+
+ status = FSOUND_Sample_Lock (
+ fmd->fmod_sample,
+ pos << hw->shift,
+ len << hw->shift,
+ p1,
+ p2,
+ blen1,
+ blen2
+ );
+
+ if (!status) {
+ dolog ("Failed to lock sample\nReason: %s\n", errstr ());
+ return -1;
+ }
+
+ if ((*blen1 & hw->align) || (*blen2 & hw->align)) {
+ dolog ("Locking sample returned unaligned length %d, %d\n",
+ *blen1, *blen2);
+ fmod_unlock_sample (fmd, *p1, *p2, *blen1, *blen2);
+ return -1;
+ }
+ return 0;
+}
+
+static void fmod_hw_run (HWVoice *hw)
+{
+ FMODVoice *fmd = (FMODVoice *) hw;
+ int rpos, live, decr;
+ void *p1 = 0, *p2 = 0;
+ unsigned int blen1 = 0, blen2 = 0;
+ unsigned int len1 = 0, len2 = 0;
+ int nb_active;
+
+ live = pcm_hw_get_live2 (hw, &nb_active);
+ if (live <= 0) {
+ return;
+ }
+
+ if (!hw->pending_disable
+ && nb_active
+ && conf.threshold
+ && live <= conf.threshold) {
+ ldebug ("live=%d nb_active=%d\n", live, nb_active);
+ return;
+ }
+
+ decr = live;
+
+#if 1
+ if (fmd->channel >= 0) {
+ int pos2 = (fmd->old_pos + decr) % hw->samples;
+ int pos = FSOUND_GetCurrentPosition (fmd->channel);
+
+ if (fmd->old_pos < pos && pos2 >= pos) {
+ decr = pos - fmd->old_pos - (pos2 == pos) - 1;
+ }
+ else if (fmd->old_pos > pos && pos2 >= pos && pos2 < fmd->old_pos) {
+ decr = (hw->samples - fmd->old_pos) + pos - (pos2 == pos) - 1;
+ }
+/* ldebug ("pos=%d pos2=%d old=%d live=%d decr=%d\n", */
+/* pos, pos2, fmd->old_pos, live, decr); */
+ }
+#endif
+
+ if (decr <= 0) {
+ return;
+ }
+
+ if (fmod_lock_sample (fmd, fmd->old_pos, decr, &p1, &p2, &blen1, &blen2)) {
+ return;
+ }
+
+ len1 = blen1 >> hw->shift;
+ len2 = blen2 >> hw->shift;
+ ldebug ("%p %p %d %d %d %d\n", p1, p2, len1, len2, blen1, blen2);
+ decr = len1 + len2;
+ rpos = hw->rpos;
+
+ if (len1) {
+ rpos = fmod_write_sample (hw, p1, hw->mix_buf, hw->samples, rpos, len1);
+ }
+
+ if (len2) {
+ rpos = fmod_write_sample (hw, p2, hw->mix_buf, hw->samples, rpos, len2);
+ }
+
+ fmod_unlock_sample (fmd, p1, p2, blen1, blen2);
+
+ pcm_hw_dec_live (hw, decr);
+ hw->rpos = rpos % hw->samples;
+ fmd->old_pos = (fmd->old_pos + decr) % hw->samples;
+}
+
+static int AUD_to_fmodfmt (audfmt_e fmt, int stereo)
+{
+ int mode = FSOUND_LOOP_NORMAL;
+
+ switch (fmt) {
+ case AUD_FMT_S8:
+ mode |= FSOUND_SIGNED | FSOUND_8BITS;
+ break;
+
+ case AUD_FMT_U8:
+ mode |= FSOUND_UNSIGNED | FSOUND_8BITS;
+ break;
+
+ case AUD_FMT_S16:
+ mode |= FSOUND_SIGNED | FSOUND_16BITS;
+ break;
+
+ case AUD_FMT_U16:
+ mode |= FSOUND_UNSIGNED | FSOUND_16BITS;
+ break;
+
+ default:
+ dolog ("Internal logic error: Bad audio format %d\nAborting\n", fmt);
+ exit (EXIT_FAILURE);
+ }
+ mode |= stereo ? FSOUND_STEREO : FSOUND_MONO;
+ return mode;
+}
+
+static void fmod_hw_fini (HWVoice *hw)
+{
+ FMODVoice *fmd = (FMODVoice *) hw;
+
+ if (fmd->fmod_sample) {
+ FSOUND_Sample_Free (fmd->fmod_sample);
+ fmd->fmod_sample = 0;
+
+ if (fmd->channel >= 0) {
+ FSOUND_StopSound (fmd->channel);
+ }
+ }
+}
+
+static int fmod_hw_init (HWVoice *hw, int freq, int nchannels, audfmt_e fmt)
+{
+ int bits16, mode, channel;
+ FMODVoice *fmd = (FMODVoice *) hw;
+
+ mode = AUD_to_fmodfmt (fmt, nchannels == 2 ? 1 : 0);
+ fmd->fmod_sample = FSOUND_Sample_Alloc (
+ FSOUND_FREE, /* index */
+ conf.nb_samples, /* length */
+ mode, /* mode */
+ freq, /* freq */
+ 255, /* volume */
+ 128, /* pan */
+ 255 /* priority */
+ );
+
+ if (!fmd->fmod_sample) {
+ dolog ("Failed to allocate FMOD sample\nReason: %s\n", errstr ());
+ return -1;
+ }
+
+ channel = FSOUND_PlaySoundEx (FSOUND_FREE, fmd->fmod_sample, 0, 1);
+ if (channel < 0) {
+ dolog ("Failed to start playing sound\nReason: %s\n", errstr ());
+ FSOUND_Sample_Free (fmd->fmod_sample);
+ return -1;
+ }
+ fmd->channel = channel;
+
+ hw->freq = freq;
+ hw->fmt = fmt;
+ hw->nchannels = nchannels;
+ bits16 = fmt == AUD_FMT_U16 || fmt == AUD_FMT_S16;
+ hw->bufsize = conf.nb_samples << (nchannels == 2) << bits16;
+ return 0;
+}
+
+static int fmod_hw_ctl (HWVoice *hw, int cmd, ...)
+{
+ int status;
+ FMODVoice *fmd = (FMODVoice *) hw;
+
+ switch (cmd) {
+ case VOICE_ENABLE:
+ fmod_clear_sample (fmd);
+ status = FSOUND_SetPaused (fmd->channel, 0);
+ if (!status) {
+ dolog ("Failed to resume channel %d\nReason: %s\n",
+ fmd->channel, errstr ());
+ }
+ break;
+
+ case VOICE_DISABLE:
+ status = FSOUND_SetPaused (fmd->channel, 1);
+ if (!status) {
+ dolog ("Failed to pause channel %d\nReason: %s\n",
+ fmd->channel, errstr ());
+ }
+ break;
+ }
+ return 0;
+}
+
+static struct {
+ const char *name;
+ int type;
+} drvtab[] = {
+ {"none", FSOUND_OUTPUT_NOSOUND},
+#ifdef _WIN32
+ {"winmm", FSOUND_OUTPUT_WINMM},
+ {"dsound", FSOUND_OUTPUT_DSOUND},
+ {"a3d", FSOUND_OUTPUT_A3D},
+ {"asio", FSOUND_OUTPUT_ASIO},
+#endif
+#ifdef __linux__
+ {"oss", FSOUND_OUTPUT_OSS},
+ {"alsa", FSOUND_OUTPUT_ALSA},
+ {"esd", FSOUND_OUTPUT_ESD},
+#endif
+#ifdef __APPLE__
+ {"mac", FSOUND_OUTPUT_MAC},
+#endif
+#if 0
+ {"xbox", FSOUND_OUTPUT_XBOX},
+ {"ps2", FSOUND_OUTPUT_PS2},
+ {"gcube", FSOUND_OUTPUT_GC},
+#endif
+ {"nort", FSOUND_OUTPUT_NOSOUND_NONREALTIME}
+};
+
+static void *fmod_audio_init (void)
+{
+ int i;
+ double ver;
+ int status;
+ int output_type = -1;
+ const char *drv = audio_get_conf_str (QC_FMOD_DRV, NULL);
+
+ ver = FSOUND_GetVersion ();
+ if (ver < FMOD_VERSION) {
+ dolog ("Wrong FMOD version %f, need at least %f\n", ver, FMOD_VERSION);
+ return NULL;
+ }
+
+ if (drv) {
+ int found = 0;
+ for (i = 0; i < sizeof (drvtab) / sizeof (drvtab[0]); i++) {
+ if (!strcmp (drv, drvtab[i].name)) {
+ output_type = drvtab[i].type;
+ found = 1;
+ break;
+ }
+ }
+ if (!found) {
+ dolog ("Unknown FMOD output driver `%s'\n", drv);
+ }
+ }
+
+ if (output_type != -1) {
+ status = FSOUND_SetOutput (output_type);
+ if (!status) {
+ dolog ("FSOUND_SetOutput(%d) failed\nReason: %s\n",
+ output_type, errstr ());
+ return NULL;
+ }
+ }
+
+ conf.freq = audio_get_conf_int (QC_FMOD_FREQ, conf.freq);
+ conf.nb_samples = audio_get_conf_int (QC_FMOD_SAMPLES, conf.nb_samples);
+ conf.nb_channels =
+ audio_get_conf_int (QC_FMOD_CHANNELS,
+ (audio_state.nb_hw_voices > 1
+ ? audio_state.nb_hw_voices
+ : conf.nb_channels));
+ conf.bufsize = audio_get_conf_int (QC_FMOD_BUFSIZE, conf.bufsize);
+ conf.threshold = audio_get_conf_int (QC_FMOD_THRESHOLD, conf.threshold);
+
+ if (conf.bufsize) {
+ status = FSOUND_SetBufferSize (conf.bufsize);
+ if (!status) {
+ dolog ("FSOUND_SetBufferSize (%d) failed\nReason: %s\n",
+ conf.bufsize, errstr ());
+ }
+ }
+
+ status = FSOUND_Init (conf.freq, conf.nb_channels, 0);
+ if (!status) {
+ dolog ("FSOUND_Init failed\nReason: %s\n", errstr ());
+ return NULL;
+ }
+
+ return &conf;
+}
+
+static void fmod_audio_fini (void *opaque)
+{
+ FSOUND_Close ();
+}
+
+struct pcm_ops fmod_pcm_ops = {
+ fmod_hw_init,
+ fmod_hw_fini,
+ fmod_hw_run,
+ fmod_hw_write,
+ fmod_hw_ctl
+};
+
+struct audio_output_driver fmod_output_driver = {
+ "fmod",
+ fmod_audio_init,
+ fmod_audio_fini,
+ &fmod_pcm_ops,
+ 1,
+ INT_MAX,
+ sizeof (FMODVoice)
+};
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