| /* |
| * 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" |
| |
| #include "audio/audio_int.h" |
| |
| typedef struct FMODVoice { |
| HWVoice hw; |
| unsigned int old_pos; |
| FSOUND_SAMPLE *fmod_sample; |
| int channel; |
| } FMODVoice; |
| |
| #define dolog(...) AUD_log ("fmod", __VA_ARGS__) |
| #ifdef DEBUG |
| #define ldebug(...) dolog (__VA_ARGS__) |
| #else |
| #define ldebug(...) |
| #endif |
| |
| #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) |
| }; |
