Add emulation settings for YRW801, TG100 and MU5 sample ROMs.

src/engine/engine.cpp

@@ -491,6 +491,77 @@ void DivEngine::notifyWaveChange(int wave) {
   BUSY_END;
 }
 
+int DivEngine::loadSampleRom(String path, ssize_t expectedSize, unsigned char*& ret) {
+  ret = NULL;
+  if (path.empty()) {
+    return 0;
+  }
+  logI("loading ROM %s...",path);
+  FILE* f=ps_fopen(path.c_str(),"rb");
+  if (f==NULL) {
+    logE("error: %s",strerror(errno));
+    lastError=strerror(errno);
+    return -1;
+  }
+  if (fseek(f,0,SEEK_END)<0) {
+    logE("size error: %s",strerror(errno));
+    lastError=fmt::sprintf("on seek: %s",strerror(errno));
+    fclose(f);
+    return -1;
+  }
+  ssize_t len=ftell(f);
+  if (len==(SIZE_MAX>>1)) {
+    logE("could not get file length: %s",strerror(errno));
+    lastError=fmt::sprintf("on pre tell: %s",strerror(errno));
+    fclose(f);
+    return -1;
+  }
+  if (len<1) {
+    if (len==0) {
+      logE("that file is empty!");
+      lastError="file is empty";
+    } else {
+      logE("tell error: %s",strerror(errno));
+      lastError=fmt::sprintf("on tell: %s",strerror(errno));
+    }
+    fclose(f);
+    return -1;
+  }
+  if (len!=expectedSize) {
+    logE("ROM size mismatch, expected: %d bytes, was: %d bytes", expectedSize, len);
+    lastError=fmt::sprintf("ROM size mismatch, expected: %d bytes, was: %d", expectedSize, len);
+    return -1;
+  }
+  if (fseek(f,0,SEEK_SET)<0) {
+    logE("size error: %s",strerror(errno));
+    lastError=fmt::sprintf("on get size: %s",strerror(errno));
+    fclose(f);
+    return -1;
+  }
+  unsigned char* file=new unsigned char[len];
+  if (fread(file,1,(size_t)len,f)!=(size_t)len) {
+    logE("read error: %s",strerror(errno));
+    lastError=fmt::sprintf("on read: %s",strerror(errno));
+    fclose(f);
+    delete[] file;
+    return -1;
+  }
+  fclose(f);
+  ret = file;
+  return 0;
+}
+
+int DivEngine::loadSampleRoms() {
+  delete[] yrw801Rom;
+  delete[] tg100Rom;
+  delete[] mu5Rom;
+  int error = 0;
+  error += loadSampleRom(getConfString("yrw801Path",""), 0x200000, yrw801Rom);
+  error += loadSampleRom(getConfString("tg100Path",""), 0x200000, tg100Rom);
+  error += loadSampleRom(getConfString("mu5Path",""), 0x200000, mu5Rom);
+  return error;
+}
+
 void DivEngine::renderSamplesP() {
   BUSY_BEGIN;
   renderSamples();
@@ -2662,6 +2733,8 @@ bool DivEngine::init() {
 
   loadConf();
 
+  loadSampleRoms();
+
   // set default system preset
   if (!hasLoadedSomething) {
     logD("setting default preset");
@@ -2735,5 +2808,8 @@ bool DivEngine::quit() {
   active=false;
   delete[] oscBuf[0];
   delete[] oscBuf[1];
+  delete[] yrw801Rom;
+  delete[] tg100Rom;
+  delete[] mu5Rom;
   return true;
 }

src/engine/engine.h

@@ -397,6 +397,8 @@ class DivEngine {
   void loadOPM(SafeReader& reader, std::vector<DivInstrument*>& ret, String& stripPath);
   void loadFF(SafeReader& reader, std::vector<DivInstrument*>& ret, String& stripPath);
 
+  int loadSampleRom(String path, ssize_t expectedSize, unsigned char*& ret);
+
   bool initAudioBackend();
   bool deinitAudioBackend();
 
@@ -783,6 +785,9 @@ class DivEngine {
     // get register cheatsheet
     const char** getRegisterSheet(int sys);
 
+    // load sample ROMs
+    int loadSampleRoms();
+
     // UNSAFE render samples - only execute when locked
     void renderSamples();
 
@@ -853,6 +858,10 @@ class DivEngine {
     // terminate the engine.
     bool quit();
 
+    unsigned char* yrw801Rom;
+    unsigned char* tg100Rom;
+    unsigned char* mu5Rom;
+
     DivEngine():
       output(NULL),
       exportThread(NULL),
@@ -927,7 +936,10 @@ class DivEngine {
       oscReadPos(0),
       oscWritePos(0),
       tickMult(1),
-      processTime(0) {
+      processTime(0),
+      yrw801Rom(NULL),
+      tg100Rom(NULL),
+      mu5Rom(NULL) {
       memset(isMuted,0,DIV_MAX_CHANS*sizeof(bool));
       memset(keyHit,0,DIV_MAX_CHANS*sizeof(bool));
       memset(dispatchChanOfChan,0,DIV_MAX_CHANS*sizeof(int));