mirror of
https://github.com/tildearrow/furnace.git
synced 2024-11-30 16:33:01 +00:00
re-organize instrument loading code
This commit is contained in:
tildearrow
parent
82ae2bf877
commit
109f80d4da
2 changed files with 627 additions and 582 deletions
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@ -273,6 +273,13 @@ class DivEngine {
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bool loadFur(unsigned char* file, size_t len);
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bool loadMod(unsigned char* file, size_t len);
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void loadDMP(SafeReader& reader, std::vector<DivInstrument*>& ret, String& stripPath);
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void loadTFI(SafeReader& reader, std::vector<DivInstrument*>& ret, String& stripPath);
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void loadVGI(SafeReader& reader, std::vector<DivInstrument*>& ret, String& stripPath);
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void loadS3I(SafeReader& reader, std::vector<DivInstrument*>& ret, String& stripPath);
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void loadSBI(SafeReader& reader, std::vector<DivInstrument*>& ret, String& stripPath);
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void loadOPM(SafeReader& reader, std::vector<DivInstrument*>& ret, String& stripPath);
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bool initAudioBackend();
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bool deinitAudioBackend();
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@ -33,136 +33,8 @@ enum DivInsFormats {
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DIV_INSFORMAT_OPM
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};
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std::vector<DivInstrument*> DivEngine::instrumentFromFile(const char* path) {
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std::vector<DivInstrument*> ret;
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warnings="";
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const char* pathRedux=strrchr(path,DIR_SEPARATOR);
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if (pathRedux==NULL) {
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pathRedux=path;
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} else {
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pathRedux++;
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}
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String stripPath;
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const char* pathReduxEnd=strrchr(pathRedux,'.');
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if (pathReduxEnd==NULL) {
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stripPath=pathRedux;
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} else {
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for (const char* i=pathRedux; i!=pathReduxEnd && (*i); i++) {
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stripPath+=*i;
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}
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}
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FILE* f=ps_fopen(path,"rb");
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if (f==NULL) {
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lastError=strerror(errno);
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return ret;
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}
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unsigned char* buf;
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ssize_t len;
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if (fseek(f,0,SEEK_END)!=0) {
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lastError=strerror(errno);
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fclose(f);
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return ret;
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}
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len=ftell(f);
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if (len<0) {
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lastError=strerror(errno);
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fclose(f);
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return ret;
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}
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if (len==0) {
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lastError=strerror(errno);
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fclose(f);
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return ret;
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}
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if (fseek(f,0,SEEK_SET)!=0) {
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lastError=strerror(errno);
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fclose(f);
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return ret;
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}
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buf=new unsigned char[len];
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if (fread(buf,1,len,f)!=(size_t)len) {
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logW("did not read entire instrument file buffer!\n");
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lastError="did not read entire instrument file!";
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delete[] buf;
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return ret;
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}
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fclose(f);
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SafeReader reader=SafeReader(buf,len);
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unsigned char magic[16];
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bool isFurnaceInstr=false;
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try {
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reader.read(magic,16);
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if (memcmp("-Furnace instr.-",magic,16)==0) {
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isFurnaceInstr=true;
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}
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} catch (EndOfFileException& e) {
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reader.seek(0,SEEK_SET);
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}
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void DivEngine::loadDMP(SafeReader& reader, std::vector<DivInstrument*>& ret, String& stripPath) {
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DivInstrument* ins=new DivInstrument;
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if (isFurnaceInstr) {
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try {
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short version=reader.readS();
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reader.readS(); // reserved
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if (version>DIV_ENGINE_VERSION) {
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warnings="this instrument is made with a more recent version of Furnace!";
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}
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unsigned int dataPtr=reader.readI();
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reader.seek(dataPtr,SEEK_SET);
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if (ins->readInsData(reader,version)!=DIV_DATA_SUCCESS) {
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lastError="invalid instrument header/data!";
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delete ins;
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delete[] buf;
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return ret;
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}
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} catch (EndOfFileException& e) {
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lastError="premature end of file";
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logE("premature end of file!\n");
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delete ins;
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delete[] buf;
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return ret;
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}
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} else { // read as a different format
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const char* ext=strrchr(path,'.');
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DivInsFormats format=DIV_INSFORMAT_DMP;
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if (ext!=NULL) {
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String extS;
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for (; *ext; ext++) {
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char i=*ext;
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if (i>='A' && i<='Z') {
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i+='a'-'A';
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}
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extS+=i;
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}
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if (extS==String(".dmp")) {
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format=DIV_INSFORMAT_DMP;
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} else if (extS==String(".tfi")) {
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format=DIV_INSFORMAT_TFI;
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} else if (extS==String(".vgi")) {
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format=DIV_INSFORMAT_VGI;
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} else if (extS==String(".fti")) {
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format=DIV_INSFORMAT_FTI;
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} else if (extS==String(".bti")) {
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format=DIV_INSFORMAT_BTI;
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} else if (extS==String(".s3i")) {
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format=DIV_INSFORMAT_S3I;
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} else if (extS==String(".sbi")) {
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format=DIV_INSFORMAT_SBI;
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} else if (extS==String(".opm")) {
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format=DIV_INSFORMAT_OPM;
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}
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}
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// TDOO these really should be re-organized to separate functions per instrument file type.
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switch (format) {
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case DIV_INSFORMAT_DMP: {
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// this is a ridiculous mess
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unsigned char version=0;
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unsigned char sys=0;
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@ -174,15 +46,13 @@ std::vector<DivInstrument*> DivEngine::instrumentFromFile(const char* path) {
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lastError="premature end of file";
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logE("premature end of file!\n");
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delete ins;
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delete[] buf;
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return ret;
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return;
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}
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if (version>11) {
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lastError="unknown instrument version!";
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delete ins;
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delete[] buf;
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return ret;
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return;
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}
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ins->name=stripPath;
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@ -228,16 +98,14 @@ std::vector<DivInstrument*> DivEngine::instrumentFromFile(const char* path) {
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logD("instrument type is unknown\n");
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lastError="unknown instrument type!";
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delete ins;
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delete[] buf;
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return ret;
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return;
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break;
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}
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} catch (EndOfFileException& e) {
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lastError="premature end of file";
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logE("premature end of file!\n");
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delete ins;
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delete[] buf;
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return ret;
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return;
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}
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}
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@ -429,12 +297,14 @@ std::vector<DivInstrument*> DivEngine::instrumentFromFile(const char* path) {
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lastError="premature end of file";
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logE("premature end of file!\n");
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delete ins;
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delete[] buf;
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return ret;
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return;
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}
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break;
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ret.push_back(ins);
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}
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case DIV_INSFORMAT_TFI:
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void DivEngine::loadTFI(SafeReader& reader, std::vector<DivInstrument*>& ret, String& stripPath) {
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DivInstrument* ins=new DivInstrument;
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try {
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reader.seek(0,SEEK_SET);
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@ -462,11 +332,14 @@ std::vector<DivInstrument*> DivEngine::instrumentFromFile(const char* path) {
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lastError="premature end of file";
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logE("premature end of file!\n");
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delete ins;
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delete[] buf;
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return ret;
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return;
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}
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break;
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case DIV_INSFORMAT_VGI:
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ret.push_back(ins);
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}
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void DivEngine::loadVGI(SafeReader& reader, std::vector<DivInstrument*>& ret, String& stripPath) {
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DivInstrument* ins=new DivInstrument;
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try {
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reader.seek(0,SEEK_SET);
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@ -501,17 +374,14 @@ std::vector<DivInstrument*> DivEngine::instrumentFromFile(const char* path) {
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lastError="premature end of file";
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logE("premature end of file!\n");
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delete ins;
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delete[] buf;
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return ret;
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return;
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}
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break;
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case DIV_INSFORMAT_FTI: // TODO
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break;
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case DIV_INSFORMAT_BTI: // TODO
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break;
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case DIV_INSFORMAT_OPM: // TODO
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break;
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case DIV_INSFORMAT_S3I:
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ret.push_back(ins);
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}
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void DivEngine::loadS3I(SafeReader& reader, std::vector<DivInstrument*>& ret, String& stripPath) {
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DivInstrument* ins=new DivInstrument;
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try {
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reader.seek(0, SEEK_SET);
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@ -581,16 +451,18 @@ std::vector<DivInstrument*> DivEngine::instrumentFromFile(const char* path) {
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if (s3i_signature != 0x49524353) {
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logW("S3I signature invalid.");
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};
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}
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catch (EndOfFileException& e) {
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} catch (EndOfFileException& e) {
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lastError = "premature end of file";
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logE("premature end of file!\n");
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delete ins;
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delete[] buf;
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return ret;
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return;
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}
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break;
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case DIV_INSFORMAT_SBI:
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ret.push_back(ins);
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}
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void DivEngine::loadSBI(SafeReader& reader, std::vector<DivInstrument*>& ret, String& stripPath) {
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DivInstrument* ins=new DivInstrument;
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try {
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reader.seek(0, SEEK_SET);
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ins->type = DIV_INS_OPL;
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@ -753,9 +625,176 @@ std::vector<DivInstrument*> DivEngine::instrumentFromFile(const char* path) {
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lastError = "premature end of file";
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logE("premature end of file!\n");
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delete ins;
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return;
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}
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ret.push_back(ins);
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}
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void DivEngine::loadOPM(SafeReader& reader, std::vector<DivInstrument*>& ret, String& stripPath) {
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DivInstrument* ins[128];
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memset(ins,0,128*sizeof(DivInstrument*));
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try {
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String line;
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} catch (EndOfFileException& e) {
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lastError="premature end of file";
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logE("premature end of file!\n");
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delete ins;
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return;
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}
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}
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std::vector<DivInstrument*> DivEngine::instrumentFromFile(const char* path) {
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std::vector<DivInstrument*> ret;
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warnings="";
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const char* pathRedux=strrchr(path,DIR_SEPARATOR);
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if (pathRedux==NULL) {
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pathRedux=path;
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} else {
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pathRedux++;
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}
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String stripPath;
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const char* pathReduxEnd=strrchr(pathRedux,'.');
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if (pathReduxEnd==NULL) {
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stripPath=pathRedux;
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} else {
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for (const char* i=pathRedux; i!=pathReduxEnd && (*i); i++) {
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stripPath+=*i;
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}
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}
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FILE* f=ps_fopen(path,"rb");
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if (f==NULL) {
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lastError=strerror(errno);
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return ret;
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}
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unsigned char* buf;
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ssize_t len;
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if (fseek(f,0,SEEK_END)!=0) {
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lastError=strerror(errno);
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fclose(f);
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return ret;
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}
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len=ftell(f);
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if (len<0) {
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lastError=strerror(errno);
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fclose(f);
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return ret;
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}
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if (len==0) {
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lastError=strerror(errno);
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fclose(f);
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return ret;
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}
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if (fseek(f,0,SEEK_SET)!=0) {
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lastError=strerror(errno);
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fclose(f);
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return ret;
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}
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buf=new unsigned char[len];
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if (fread(buf,1,len,f)!=(size_t)len) {
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logW("did not read entire instrument file buffer!\n");
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lastError="did not read entire instrument file!";
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delete[] buf;
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return ret;
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}
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fclose(f);
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SafeReader reader=SafeReader(buf,len);
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unsigned char magic[16];
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bool isFurnaceInstr=false;
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try {
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reader.read(magic,16);
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if (memcmp("-Furnace instr.-",magic,16)==0) {
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isFurnaceInstr=true;
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}
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} catch (EndOfFileException& e) {
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reader.seek(0,SEEK_SET);
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}
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if (isFurnaceInstr) {
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DivInstrument* ins=new DivInstrument;
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try {
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short version=reader.readS();
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reader.readS(); // reserved
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if (version>DIV_ENGINE_VERSION) {
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warnings="this instrument is made with a more recent version of Furnace!";
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}
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unsigned int dataPtr=reader.readI();
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reader.seek(dataPtr,SEEK_SET);
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if (ins->readInsData(reader,version)!=DIV_DATA_SUCCESS) {
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lastError="invalid instrument header/data!";
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delete ins;
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delete[] buf;
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return ret;
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}
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} catch (EndOfFileException& e) {
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lastError="premature end of file";
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logE("premature end of file!\n");
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delete ins;
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delete[] buf;
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return ret;
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}
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} else { // read as a different format
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const char* ext=strrchr(path,'.');
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DivInsFormats format=DIV_INSFORMAT_DMP;
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if (ext!=NULL) {
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String extS;
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for (; *ext; ext++) {
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char i=*ext;
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if (i>='A' && i<='Z') {
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i+='a'-'A';
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}
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extS+=i;
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}
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if (extS==String(".dmp")) {
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format=DIV_INSFORMAT_DMP;
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} else if (extS==String(".tfi")) {
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format=DIV_INSFORMAT_TFI;
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} else if (extS==String(".vgi")) {
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format=DIV_INSFORMAT_VGI;
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} else if (extS==String(".fti")) {
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format=DIV_INSFORMAT_FTI;
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} else if (extS==String(".bti")) {
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format=DIV_INSFORMAT_BTI;
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} else if (extS==String(".s3i")) {
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format=DIV_INSFORMAT_S3I;
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} else if (extS==String(".sbi")) {
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format=DIV_INSFORMAT_SBI;
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} else if (extS==String(".opm")) {
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format=DIV_INSFORMAT_OPM;
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}
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}
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switch (format) {
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case DIV_INSFORMAT_DMP: {
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loadDMP(reader,ret,stripPath);
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break;
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}
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case DIV_INSFORMAT_TFI:
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loadTFI(reader,ret,stripPath);
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break;
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case DIV_INSFORMAT_VGI:
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loadVGI(reader,ret,stripPath);
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break;
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case DIV_INSFORMAT_FTI: // TODO
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break;
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case DIV_INSFORMAT_BTI: // TODO
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break;
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case DIV_INSFORMAT_OPM: // TODO
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break;
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case DIV_INSFORMAT_S3I:
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loadS3I(reader,ret,stripPath);
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break;
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case DIV_INSFORMAT_SBI:
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loadSBI(reader,ret,stripPath);
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break;
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}
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@ -766,6 +805,5 @@ std::vector<DivInstrument*> DivEngine::instrumentFromFile(const char* path) {
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}
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}
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ret.push_back(ins);
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return ret;
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}
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