#include "meta.h" #include "../util.h" #include #ifdef WIN32 #define DIRSEP '\\' #else #define DIRSEP '/' #endif /* NWA - Visual Arts streams * * This can apparently get a lot more complicated, I'm only handling the * raw PCM case at the moment (until I see something else). * * Kazunori "jagarl" Ueno's nwatowav was helpful, and will probably be used * to write coding support if it comes to that. */ VGMSTREAM * init_vgmstream_nwa(STREAMFILE *streamFile) { VGMSTREAM * vgmstream = NULL; char filename[260]; int i; int channel_count; int loop_flag = 0; int32_t loop_start_sample; int32_t loop_end_sample; int nwainfo_ini_found = 0; int gameexe_ini_found = 0; /* check extension, case insensitive */ streamFile->get_name(streamFile,filename,sizeof(filename)); if (strcasecmp("nwa",filename_extension(filename))) goto fail; /* check that we're using raw pcm */ if ( read_32bitLE(0x08,streamFile)!=-1 || /* compression level */ read_32bitLE(0x10,streamFile)!=0 || /* block count */ read_32bitLE(0x18,streamFile)!=0 || /* compressed data size */ read_32bitLE(0x20,streamFile)!=0 || /* block size */ 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; nwainfo_ini_found = 1; ext = filename_extension(namebase); length = ext-1-namebase; file_size = get_streamfile_size(inistreamfile); for (found = 0, offset = 0; !found && offset 0) loop_flag = 1; } } /* if found file name in INI */ close_streamfile(inistreamfile); } /* if opened INI ok */ } /* INI block */ /* try to locate Gameexe.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,"Gameexe.ini",sizeof(ininame)); namebase = filename; } else { strncpy(ini_lastslash+1,"Gameexe.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; gameexe_ini_found = 1; ext = filename_extension(namebase); length = ext-1-namebase; file_size = get_streamfile_size(inistreamfile); /* format of line is: * #DSTRACK = 00000000 - eeeeeeee - ssssssss = "name" = "name2?" * ^22 ^33 ^45 ^57 */ for (found = 0, offset = 0; !found && offsetchannels = channel_count; vgmstream->sample_rate = read_32bitLE(0x04,streamFile); switch (read_16bitLE(0x02,streamFile)) { case 16: vgmstream->coding_type = coding_PCM16LE; vgmstream->interleave_block_size = 2; break; case 8: vgmstream->coding_type = coding_PCM8; vgmstream->interleave_block_size = 1; break; default: goto fail; } vgmstream->num_samples = read_32bitLE(0x1c,streamFile)/channel_count; if (channel_count > 1) { vgmstream->layout_type = layout_interleave; } else { vgmstream->layout_type = layout_none; } if (nwainfo_ini_found) { vgmstream->meta_type = meta_NWA_NWAINFOINI; if (loop_flag) { vgmstream->loop_start_sample = loop_start_sample; vgmstream->loop_end_sample = vgmstream->num_samples; } } else if (gameexe_ini_found) { vgmstream->meta_type = meta_NWA_GAMEEXEINI; if (loop_flag) { vgmstream->loop_start_sample = loop_start_sample; vgmstream->loop_end_sample = loop_end_sample; } } else { vgmstream->meta_type = meta_NWA; } /* open the file for reading by each channel */ { STREAMFILE *chstreamfile; /* 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;ich[i].streamfile = chstreamfile; vgmstream->ch[i].channel_start_offset= vgmstream->ch[i].offset=0x2c+(off_t)(i*vgmstream->interleave_block_size); } } return vgmstream; /* clean up anything we may have opened */ fail: if (vgmstream) close_vgmstream(vgmstream); return NULL; }