vgmstream/src/layout/aax_layout.c
halleyscometsw 785cf57282 AAX header reading. Overkill much?
git-svn-id: https://vgmstream.svn.sourceforge.net/svnroot/vgmstream@549 51a99a44-fe44-0410-b1ba-c3e57ba2b86b
2009-01-03 13:16:36 +00:00

68 lines
2.7 KiB
C

#include "layout.h"
#include "../vgmstream.h"
#include "../coding/coding.h"
void render_vgmstream_aax(sample * buffer, int32_t sample_count, VGMSTREAM * vgmstream) {
int samples_written=0;
aax_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];
if (vgmstream->loop_flag && vgmstream_do_loop(vgmstream)) {
int i;
data->current_segment = data->loop_segment;
reset_vgmstream(data->adxs[data->current_segment]);
/* carry over the history from the loop point */
if (data->loop_segment > 0)
{
for (i=0;i<data->adxs[0]->channels;i++)
{
data->adxs[data->loop_segment]->ch[i].adpcm_history1_32 =
data->adxs[data->loop_segment-1]->ch[i].adpcm_history1_32;
data->adxs[data->loop_segment]->ch[i].adpcm_history2_32 =
data->adxs[data->loop_segment-1]->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("advance to %d at %d samples\n",data->current_segment,vgmstream->current_sample);*/
reset_vgmstream(data->adxs[data->current_segment]);
/* carry over the history from the previous segment */
for (i=0;i<data->adxs[0]->channels;i++)
{
data->adxs[data->current_segment]->ch[i].adpcm_history1_32 =
data->adxs[data->current_segment-1]->ch[i].adpcm_history1_32;
data->adxs[data->current_segment]->ch[i].adpcm_history2_32 =
data->adxs[data->current_segment-1]->ch[i].adpcm_history2_32;
}
vgmstream->samples_into_block = 0;
continue;
}
render_vgmstream(&buffer[samples_written*data->adxs[data->current_segment]->channels],
samples_to_do,data->adxs[data->current_segment]);
samples_written += samples_to_do;
vgmstream->current_sample += samples_to_do;
vgmstream->samples_into_block+=samples_to_do;
}
}