NWAINFO.INI reading for .nwa

git-svn-id: https://vgmstream.svn.sourceforge.net/svnroot/vgmstream@302 51a99a44-fe44-0410-b1ba-c3e57ba2b86b
This commit is contained in:
halleyscometsw 2008-07-11 01:43:15 +00:00
parent 8a528c3548
commit 0b97cf01a8
3 changed files with 99 additions and 3 deletions

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@ -1,5 +1,12 @@
#include "meta.h"
#include "../util.h"
#include <string.h>
#ifdef WIN32
#define DIRSEP '\\'
#else
#define DIRSEP '/'
#endif
/* NWA - Visual Arts streams
*
@ -15,6 +22,9 @@ VGMSTREAM * init_vgmstream_nwa(STREAMFILE *streamFile) {
char filename[260];
int i;
int channel_count;
int loop_flag = 0;
int32_t loop_start_sample;
int ini_found = 0;
/* check extension, case insensitive */
streamFile->get_name(streamFile,filename,sizeof(filename));
@ -29,10 +39,82 @@ VGMSTREAM * init_vgmstream_nwa(STREAMFILE *streamFile) {
read_32bitLE(0x24,streamFile)!=0 /* restsize */
) goto fail;
/* try to locate NWAINFO.INI in the same directory */
{
char ininame[260];
char * ini_lastslash;
char * namebase;
STREAMFILE *inistreamfile;
strncpy(ininame,filename,sizeof(ininame));
ininame[sizeof(ininame)-1]='\0'; /* a pox on the stdlib! */
ini_lastslash = strrchr(ininame,DIRSEP);
if (!ini_lastslash) {
strncpy(ininame,"NWAINFO.INI",sizeof(ininame));
namebase = filename;
} else {
strncpy(ini_lastslash+1,"NWAINFO.INI",
sizeof(ininame)-(ini_lastslash+1-ininame));
namebase = ini_lastslash+1-ininame+filename;
}
ininame[sizeof(ininame)-1]='\0'; /* curse you, strncpy! */
inistreamfile = streamFile->open(streamFile,ininame,4096);
if (inistreamfile) {
/* ini found, try to find our name */
const char * ext;
int length;
int found;
off_t offset;
off_t file_size;
off_t found_off;
ini_found = 1;
ext = filename_extension(namebase);
length = ext-1-namebase;
file_size = get_streamfile_size(inistreamfile);
for (found = 0, offset = 0; !found && offset<file_size; offset++) {
off_t suboffset;
/* Go for an n*m search 'cause it's easier than building an
* FSA for the search string. Just wanted to make the point that
* I'm not ignorant, just lazy. */
for (suboffset = offset;
suboffset<file_size &&
suboffset-offset<length &&
read_8bit(suboffset,inistreamfile)==
namebase[suboffset-offset];
suboffset++) {}
if (suboffset-offset==length &&
read_8bit(suboffset,inistreamfile)==0x09) { /* tab */
found=1;
found_off = suboffset+1;
}
}
if (found) {
char loopstring[9]={0};
if (read_streamfile((uint8_t*)loopstring,found_off,8,
inistreamfile)==8)
{
loop_start_sample = atol(loopstring);
if (loop_start_sample > 0) loop_flag = 1;
}
} /* if found file name in INI */
close_streamfile(inistreamfile);
} /* if opened INI ok */
} /* INI block */
channel_count = read_16bitLE(0x00,streamFile);
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channel_count,0);
vgmstream = allocate_vgmstream(channel_count,loop_flag);
if (!vgmstream) goto fail;
/* fill in the vital statistics */
@ -56,7 +138,17 @@ VGMSTREAM * init_vgmstream_nwa(STREAMFILE *streamFile) {
} else {
vgmstream->layout_type = layout_none;
}
vgmstream->meta_type = meta_NWA;
if (ini_found) {
vgmstream->meta_type = meta_NWA_INI;
} else {
vgmstream->meta_type = meta_NWA;
}
if (loop_flag) {
vgmstream->loop_start_sample = loop_start_sample;
vgmstream->loop_end_sample = vgmstream->num_samples;
}
/* open the file for reading by each channel */
{
@ -64,7 +156,7 @@ VGMSTREAM * init_vgmstream_nwa(STREAMFILE *streamFile) {
/* have both channels use the same buffer, as interleave is so small */
chstreamfile = streamFile->open(streamFile,filename,STREAMFILE_DEFAULT_BUFFER_SIZE);
if (!chstreamfile) goto fail;
for (i=0;i<2;i++) {

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@ -1118,6 +1118,9 @@ void describe_vgmstream(VGMSTREAM * vgmstream, char * desc, int length) {
case meta_NWA:
snprintf(temp,TEMPSIZE,"Visual Art's NWA header");
break;
case meta_NWA_INI:
snprintf(temp,TEMPSIZE,"Visual Art's NWA header and NWAINFO.INI for looping");
break;
default:
snprintf(temp,TEMPSIZE,"THEY SHOULD HAVE SENT A POET");
}

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@ -183,6 +183,7 @@ typedef enum {
meta_RIFF_WAVE, /* RIFF, for WAVs */
meta_RIFF_WAVE_POS, /* .wav + .pos for looping */
meta_NWA, /* Visual Art's NWA */
meta_NWA_INI, /* NWA w/ NWAINFO.INI for looping */
} meta_t;
typedef struct {