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#include "emu.h"
#include "streams.h"
#include "tiaintf.h"
#include "tiasound.h"
typedef struct _tia_state tia_state;
struct _tia_state
{
sound_stream * channel;
void *chip;
};
INLINE tia_state *get_safe_token(running_device *device)
{
assert(device != NULL);
assert(device->token != NULL);
assert(device->type == SOUND);
assert(sound_get_type(device) == SOUND_TIA);
return (tia_state *)device->token;
}
static STREAM_UPDATE( tia_update )
{
tia_state *info = (tia_state *)param;
tia_process(info->chip, outputs[0], samples);
}
static DEVICE_START( tia )
{
tia_state *info = get_safe_token(device);
info->channel = stream_create(device, 0, 1, device->clock, info, tia_update);
info->chip = tia_sound_init(device->clock, device->clock, 16);
assert_always(info->chip != NULL, "Error creating TIA chip");
}
static DEVICE_STOP( tia )
{
tia_state *info = get_safe_token(device);
tia_sound_free(info->chip);
}
WRITE8_DEVICE_HANDLER( tia_sound_w )
{
tia_state *info = get_safe_token(device);
stream_update(info->channel);
tia_write(info->chip, offset, data);
}
/**************************************************************************
* Generic get_info
**************************************************************************/
DEVICE_GET_INFO( tia )
{
switch (state)
{
/* --- the following bits of info are returned as 64-bit signed integers --- */
case DEVINFO_INT_TOKEN_BYTES: info->i = sizeof(tia_state); break;
/* --- the following bits of info are returned as pointers to data or functions --- */
case DEVINFO_FCT_START: info->start = DEVICE_START_NAME( tia ); break;
case DEVINFO_FCT_STOP: info->stop = DEVICE_STOP_NAME( tia ); break;
case DEVINFO_FCT_RESET: /* Nothing */ break;
/* --- the following bits of info are returned as NULL-terminated strings --- */
case DEVINFO_STR_NAME: strcpy(info->s, "TIA"); break;
case DEVINFO_STR_FAMILY: strcpy(info->s, "Atari custom"); break;
case DEVINFO_STR_VERSION: strcpy(info->s, "1.0"); break;
case DEVINFO_STR_SOURCE_FILE: strcpy(info->s, __FILE__); break;
case DEVINFO_STR_CREDITS: strcpy(info->s, "Copyright Nicola Salmoria and the MAME Team"); break;
}
}
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