doom_py/src/vizdoom/dumb/src/it/readam.c [386:425]:
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					sigdata->channel_volume[ o ] = 0;
				}
			}
			break;
		}
	}

	sigdata->pattern = malloc( sigdata->n_patterns * sizeof( *sigdata->pattern ) );
	if ( ! sigdata->pattern ) goto error_usd;
	for ( n = 0; n < sigdata->n_patterns; ++n )
		sigdata->pattern[ n ].entry = NULL;

	sigdata->sample = malloc( sigdata->n_samples * sizeof( *sigdata->sample ) );
	if ( ! sigdata->sample ) goto error_usd;
	for ( n = 0; n < sigdata->n_samples; ++n )
	{
		IT_SAMPLE * sample = sigdata->sample + n;
		sample->data = NULL;
		sample->flags = 0;
		sample->name[ 0 ] = 0;
	}

    for ( n = 0; (unsigned)n < stream->chunk_count; ++n )
	{
		struct riff_chunk * c = stream->chunks + n;
		switch ( c->type )
		{
		case DUMB_ID( 'O', 'R', 'D', 'R' ):
            if ( dumbfile_seek( f, c->offset, DFS_SEEK_SET ) ) goto error_usd;
            sigdata->n_orders = dumbfile_getc( f ) + 1;
            if ( (unsigned)sigdata->n_orders + 1 > c->size ) goto error_usd;
			sigdata->order = malloc( sigdata->n_orders );
			if ( ! sigdata->order ) goto error_usd;
            dumbfile_getnc( (char *) sigdata->order, sigdata->n_orders, f );
			break;

		case DUMB_ID( 'P', 'A', 'T', 'T' ):
            if ( dumbfile_seek( f, c->offset, DFS_SEEK_SET ) ) goto error_usd;
            o = dumbfile_getc( f );
            p = dumbfile_igetl( f );
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doom_py/src/vizdoom/dumb/src/it/readam.c [621:660]:
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					sigdata->channel_volume[ o ] = 0;
				}
			}
			break;
		}
	}

	sigdata->pattern = malloc( sigdata->n_patterns * sizeof( *sigdata->pattern ) );
	if ( ! sigdata->pattern ) goto error_usd;
	for ( n = 0; n < sigdata->n_patterns; ++n )
		sigdata->pattern[ n ].entry = NULL;

	sigdata->sample = malloc( sigdata->n_samples * sizeof( *sigdata->sample ) );
	if ( ! sigdata->sample ) goto error_usd;
	for ( n = 0; n < sigdata->n_samples; ++n )
	{
		IT_SAMPLE * sample = sigdata->sample + n;
		sample->data = NULL;
		sample->flags = 0;
		sample->name[ 0 ] = 0;
	}

    for ( n = 0; (unsigned)n < stream->chunk_count; ++n )
	{
		struct riff_chunk * c = stream->chunks + n;
		switch ( c->type )
		{
		case DUMB_ID( 'O', 'R', 'D', 'R' ):
            if ( dumbfile_seek( f, c->offset, DFS_SEEK_SET ) ) goto error_usd;
            sigdata->n_orders = dumbfile_getc( f ) + 1;
            if ( (unsigned)sigdata->n_orders + 1 > c->size ) goto error_usd;
			sigdata->order = malloc( sigdata->n_orders );
			if ( ! sigdata->order ) goto error_usd;
            dumbfile_getnc( (char *) sigdata->order, sigdata->n_orders, f );
			break;

		case DUMB_ID( 'P', 'A', 'T', 'T' ):
            if ( dumbfile_seek( f, c->offset, DFS_SEEK_SET ) ) goto error_usd;
            o = dumbfile_getc( f );
            p = dumbfile_igetl( f );
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