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#include "meta.h"
#include "../util.h"
/* XWB (found in King of Fighters 2003 (XBOX)) */
VGMSTREAM * init_vgmstream_xwb(STREAMFILE *streamFile) {
VGMSTREAM * vgmstream = NULL;
char filename[260];
off_t start_offset;
int loop_flag = 0;
int channel_count;
int coding;
int coding_flag;
int num_samples;
/* check extension, case insensitive */
streamFile->get_name(streamFile,filename,sizeof(filename));
if (strcasecmp("xwb",filename_extension(filename))) goto fail;
/* check header */
if (read_32bitBE(0x00,streamFile) != 0x57424E44) /* WBND */
goto fail;
#if 0
/* check if the file is been used as container */
if (read_32bitBE(0x2C,streamFile) != 0x01000000)
goto fail;
#endif
/* if it's looped it should be 2, didn't see anything else... */
loop_flag = (uint8_t)(read_8bit(0x50,streamFile));
if (loop_flag == 2) {
loop_flag = 1;
} else if (loop_flag < 2) {
loop_flag = 0;
}
channel_count = 2;
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channel_count,loop_flag);
if (!vgmstream) goto fail;
/* fill in the vital statistics */
start_offset = read_32bitLE(0x20,streamFile);
vgmstream->channels = channel_count;
vgmstream->sample_rate = 44100; /* read_32bitLE(0x08,streamFile); */
coding_flag = (uint8_t)(read_8bit(0x52,streamFile));
switch (coding_flag) {
case 0:
coding = coding_PCM16LE;
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = 0x2;
num_samples = read_32bitLE(0x5C,streamFile)/2/channel_count;
if (loop_flag) {
vgmstream->loop_start_sample = read_32bitLE(0x60,streamFile)/2/channel_count;
vgmstream->loop_end_sample = read_32bitLE(0x5C,streamFile)/2/channel_count;
}
break;
case 1:
coding = coding_XBOX;
vgmstream->layout_type = layout_none;
num_samples = read_32bitLE(0x5C,streamFile)/36/channel_count*64;
if (loop_flag) {
vgmstream->loop_start_sample = read_32bitLE(0x60,streamFile)/36/channel_count*64;
vgmstream->loop_end_sample = read_32bitLE(0x5C,streamFile)/36/channel_count*64;
}
break;
default:
goto fail;
}
vgmstream->coding_type = coding;
vgmstream->num_samples = num_samples;
vgmstream->meta_type = meta_XWB;
/* open the file for reading */
{
int i;
STREAMFILE * file;
file = streamFile->open(streamFile,filename,STREAMFILE_DEFAULT_BUFFER_SIZE);
if (!file) goto fail;
for (i=0;i<channel_count;i++) {
vgmstream->ch[i].streamfile = file;
if (vgmstream->coding_type == coding_XBOX) {
/* xbox interleaving is a little odd */
vgmstream->ch[i].channel_start_offset=start_offset;
} else {
vgmstream->ch[i].channel_start_offset=
start_offset+vgmstream->interleave_block_size*i;
}
vgmstream->ch[i].offset = vgmstream->ch[i].channel_start_offset;
}
}
return vgmstream;
/* clean up anything we may have opened */
fail:
if (vgmstream) close_vgmstream(vgmstream);
return NULL;
}
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