vgmstream/src/layout/aix_layout.c

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#include "layout.h"
#include "../vgmstream.h"
#include "../coding/coding.h"
void render_vgmstream_aix(sample * buffer, int32_t sample_count, VGMSTREAM * vgmstream) {
int samples_written=0;
aix_codec_data *data = vgmstream->codec_data;
while (samples_written<sample_count) {
int samples_to_do;
int samples_this_block = data->sample_counts[data->current_segment];
int current_stream;
int channels_sofar = 0;
if (vgmstream->loop_flag && vgmstream_do_loop(vgmstream)) {
data->current_segment = 1;
for (current_stream = 0; current_stream < data->stream_count; current_stream++)
{
int i;
reset_vgmstream(data->adxs[data->current_segment*data->stream_count+current_stream]);
/* carry over the history from the loop point */
for (i=0;i<data->adxs[data->stream_count+current_stream]->channels;i++)
{
data->adxs[1*data->stream_count+current_stream]->ch[i].adpcm_history1_32 =
data->adxs[0+current_stream]->ch[i].adpcm_history1_32;
data->adxs[1*data->stream_count+current_stream]->ch[i].adpcm_history2_32 =
data->adxs[0+current_stream]->ch[i].adpcm_history2_32;
}
}
vgmstream->samples_into_block = 0;
continue;
}
samples_to_do = vgmstream_samples_to_do(samples_this_block, 1, vgmstream);
/*printf("samples_to_do=%d,samples_this_block=%d,samples_written=%d,sample_count=%d\n",samples_to_do,samples_this_block,samples_written,sample_count);*/
if (samples_written+samples_to_do > sample_count)
samples_to_do=sample_count-samples_written;
if (samples_to_do == 0)
{
int i;
data->current_segment++;
/*printf("next %d, %d samples\n",data->current_file,data->files[data->current_file]->total_values/data->files[data->current_file]->info.channels);*/
for (current_stream = 0; current_stream < data->stream_count; current_stream++)
{
reset_vgmstream(data->adxs[data->current_segment*data->stream_count+current_stream]);
/* carry over the history from the previous segment */
for (i=0;i<data->adxs[data->current_segment*data->stream_count+current_stream]->channels;i++)
{
data->adxs[data->current_segment*data->stream_count+current_stream]->ch[i].adpcm_history1_32 =
data->adxs[(data->current_segment-1)*data->stream_count+current_stream]->ch[i].adpcm_history1_32;
data->adxs[data->current_segment*data->stream_count+current_stream]->ch[i].adpcm_history2_32 =
data->adxs[(data->current_segment-1)*data->stream_count+current_stream]->ch[i].adpcm_history2_32;
}
}
vgmstream->samples_into_block = 0;
continue;
}
/*printf("decode %d samples file %d\n",samples_to_do,data->current_file);*/
if (samples_to_do > AIX_BUFFER_SIZE/2)
{
samples_to_do = AIX_BUFFER_SIZE/2;
}
for (current_stream = 0; current_stream < data->stream_count; current_stream++)
{
int i,j;
VGMSTREAM *adx = data->adxs[data->current_segment*data->stream_count+current_stream];
render_vgmstream(data->buffer,samples_to_do,adx);
for (i = 0; i < samples_to_do; i++)
{
for (j = 0; j < adx->channels; j++)
{
buffer[(i+samples_written)*vgmstream->channels+channels_sofar+j] = data->buffer[i*adx->channels+j];
}
}
channels_sofar += adx->channels;
}
samples_written += samples_to_do;
vgmstream->current_sample += samples_to_do;
vgmstream->samples_into_block+=samples_to_do;
}
}