/* Called when a new block is started to initialise its internal state */
libspectrum_error
libspectrum_tape_init_block( libspectrum_tape_block *block )
{
switch( block->type ) {
case LIBSPECTRUM_TAPE_BLOCK_ROM:
return rom_init( &(block->types.rom) );
case LIBSPECTRUM_TAPE_BLOCK_TURBO:
return turbo_init( &(block->types.turbo) );
case LIBSPECTRUM_TAPE_BLOCK_PURE_TONE:
block->types.pure_tone.edge_count = block->types.pure_tone.pulses;
break;
case LIBSPECTRUM_TAPE_BLOCK_PULSES:
block->types.pulses.edge_count = 0;
break;
case LIBSPECTRUM_TAPE_BLOCK_PURE_DATA:
return pure_data_init( &(block->types.pure_data) );
/* These blocks need no initialisation */
case LIBSPECTRUM_TAPE_BLOCK_PAUSE:
case LIBSPECTRUM_TAPE_BLOCK_GROUP_START:
case LIBSPECTRUM_TAPE_BLOCK_GROUP_END:
case LIBSPECTRUM_TAPE_BLOCK_JUMP:
case LIBSPECTRUM_TAPE_BLOCK_LOOP_START:
case LIBSPECTRUM_TAPE_BLOCK_LOOP_END:
case LIBSPECTRUM_TAPE_BLOCK_SELECT:
case LIBSPECTRUM_TAPE_BLOCK_STOP48:
case LIBSPECTRUM_TAPE_BLOCK_COMMENT:
case LIBSPECTRUM_TAPE_BLOCK_MESSAGE:
case LIBSPECTRUM_TAPE_BLOCK_ARCHIVE_INFO:
case LIBSPECTRUM_TAPE_BLOCK_HARDWARE:
case LIBSPECTRUM_TAPE_BLOCK_CUSTOM:
return LIBSPECTRUM_ERROR_NONE;
default:
libspectrum_print_error(
"libspectrum_tape_init_block: unknown block type 0x%02x\n",
block->type
);
return LIBSPECTRUM_ERROR_LOGIC;
}
return LIBSPECTRUM_ERROR_NONE;
}
/* Called when a new block is started to initialise its internal state */
libspectrum_error
libspectrum_tape_block_init( libspectrum_tape_block *block,
libspectrum_tape_block_state *state )
{
if( !block ) return LIBSPECTRUM_ERROR_NONE;
switch( libspectrum_tape_block_type( block ) ) {
case LIBSPECTRUM_TAPE_BLOCK_ROM:
return rom_init( &(block->types.rom), &(state->block_state.rom) );
case LIBSPECTRUM_TAPE_BLOCK_TURBO:
return turbo_init( &(block->types.turbo), &(state->block_state.turbo) );
case LIBSPECTRUM_TAPE_BLOCK_PURE_TONE:
state->block_state.pure_tone.edge_count = block->types.pure_tone.pulses;
break;
case LIBSPECTRUM_TAPE_BLOCK_PULSES:
state->block_state.pulses.edge_count = 0;
break;
case LIBSPECTRUM_TAPE_BLOCK_PURE_DATA:
return pure_data_init( &(block->types.pure_data),
&(state->block_state.pure_data) );
case LIBSPECTRUM_TAPE_BLOCK_RAW_DATA:
raw_data_init( &(block->types.raw_data), &(state->block_state.raw_data) );
return LIBSPECTRUM_ERROR_NONE;
case LIBSPECTRUM_TAPE_BLOCK_GENERALISED_DATA:
return generalised_data_init( &(block->types.generalised_data),
&(state->block_state.generalised_data) );
case LIBSPECTRUM_TAPE_BLOCK_RLE_PULSE:
state->block_state.rle_pulse.index = 0;
return LIBSPECTRUM_ERROR_NONE;
case LIBSPECTRUM_TAPE_BLOCK_PULSE_SEQUENCE:
state->block_state.pulse_sequence.index = 0;
state->block_state.pulse_sequence.pulse_count = 0;
state->block_state.pulse_sequence.level = -1;
return LIBSPECTRUM_ERROR_NONE;
case LIBSPECTRUM_TAPE_BLOCK_DATA_BLOCK:
return data_block_init( &(block->types.data_block),
&(state->block_state.data_block) );
/* These blocks need no initialisation */
case LIBSPECTRUM_TAPE_BLOCK_PAUSE:
case LIBSPECTRUM_TAPE_BLOCK_GROUP_START:
case LIBSPECTRUM_TAPE_BLOCK_GROUP_END:
case LIBSPECTRUM_TAPE_BLOCK_JUMP:
case LIBSPECTRUM_TAPE_BLOCK_LOOP_START:
case LIBSPECTRUM_TAPE_BLOCK_LOOP_END:
case LIBSPECTRUM_TAPE_BLOCK_SELECT:
case LIBSPECTRUM_TAPE_BLOCK_STOP48:
case LIBSPECTRUM_TAPE_BLOCK_SET_SIGNAL_LEVEL:
case LIBSPECTRUM_TAPE_BLOCK_COMMENT:
case LIBSPECTRUM_TAPE_BLOCK_MESSAGE:
case LIBSPECTRUM_TAPE_BLOCK_ARCHIVE_INFO:
case LIBSPECTRUM_TAPE_BLOCK_HARDWARE:
case LIBSPECTRUM_TAPE_BLOCK_CUSTOM:
return LIBSPECTRUM_ERROR_NONE;
default:
libspectrum_print_error(
LIBSPECTRUM_ERROR_LOGIC,
"libspectrum_tape_init_block: unknown block type 0x%02x",
block->type
);
return LIBSPECTRUM_ERROR_LOGIC;
}
return LIBSPECTRUM_ERROR_NONE;
}
