diff options
Diffstat (limited to 'src/emu/sound/tiaintf.c')
-rw-r--r-- | src/emu/sound/tiaintf.c | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/src/emu/sound/tiaintf.c b/src/emu/sound/tiaintf.c new file mode 100644 index 00000000000..b931829115d --- /dev/null +++ b/src/emu/sound/tiaintf.c @@ -0,0 +1,85 @@ +#include "sndintrf.h" +#include "streams.h" +#include "tiaintf.h" +#include "tiasound.h" + +struct tia_info +{ + sound_stream * channel; + void *chip; +}; + + +static void tia_update(void *param, stream_sample_t **inputs, stream_sample_t **buffer, int length) +{ + struct tia_info *info = param; + tia_process(info->chip, buffer[0], length); +} + + +static void *tia_start(int sndindex, int clock, const void *config) +{ + struct tia_info *info; + + info = auto_malloc(sizeof(*info)); + memset(info, 0, sizeof(*info)); + + info->channel = stream_create(0, 1, clock, info, tia_update); + + info->chip = tia_sound_init(clock, clock, 16); + if (!info->chip) + return NULL; + + return info; +} + +static void tia_stop(void *token) +{ + struct tia_info *info = (struct tia_info*)token; + tia_sound_free(info->chip); +} + +WRITE8_HANDLER( tia_sound_w ) +{ + struct tia_info *info = sndti_token(SOUND_TIA, 0); + stream_update(info->channel); + tia_write(info->chip, offset, data); +} + + + + +/************************************************************************** + * Generic get_info + **************************************************************************/ + +static void tia_set_info(void *token, UINT32 state, sndinfo *info) +{ + switch (state) + { + /* no parameters to set */ + } +} + + +void tia_get_info(void *token, UINT32 state, sndinfo *info) +{ + switch (state) + { + /* --- the following bits of info are returned as 64-bit signed integers --- */ + + /* --- the following bits of info are returned as pointers to data or functions --- */ + case SNDINFO_PTR_SET_INFO: info->set_info = tia_set_info; break; + case SNDINFO_PTR_START: info->start = tia_start; break; + case SNDINFO_PTR_STOP: info->stop = tia_stop; break; + case SNDINFO_PTR_RESET: /* Nothing */ break; + + /* --- the following bits of info are returned as NULL-terminated strings --- */ + case SNDINFO_STR_NAME: info->s = "TIA"; break; + case SNDINFO_STR_CORE_FAMILY: info->s = "Atari custom"; break; + case SNDINFO_STR_CORE_VERSION: info->s = "1.0"; break; + case SNDINFO_STR_CORE_FILE: info->s = __FILE__; break; + case SNDINFO_STR_CORE_CREDITS: info->s = "Copyright (c) 2004, The MAME Team"; break; + } +} + |