Support hosting your own VST bundles on iOS

extras/Projucer/Source/Project Saving/jucer_ProjectExport_XCode.h

@@ -124,7 +124,7 @@ public:
     bool isOSX() const override                      { return ! iOS; }
     bool isiOS() const override                      { return iOS; }
 
-    bool supportsVST() const override                { return ! iOS; }
+    bool supportsVST() const override                { return true; }
     bool supportsVST3() const override               { return ! iOS; }
     bool supportsAAX() const override                { return ! iOS; }
     bool supportsRTAS() const override               { return ! iOS; }

modules/juce_audio_plugin_client/VST/juce_VST_Wrapper.cpp

@@ -272,11 +272,13 @@ public:
          firstProcessCallback (true),
          shouldDeleteEditor (false),
         #if JUCE_64BIT
-         useNSView (true),
+         useNSView (true)
         #else
-         useNSView (false),
+         useNSView (false)
+        #endif
+        #if ! JUCE_IOS
+         , hostWindow (0)
         #endif
-         hostWindow (0)
     {
         busUtils.init();
 
@@ -343,7 +345,9 @@ public:
                 delete filter;
                 filter = nullptr;
 
+               #if ! JUCE_IOS
                 jassert (editorComp == 0);
+               #endif
 
                 deleteTempChannels();
 
@@ -1331,6 +1335,7 @@ public:
 
     void createEditorComp()
     {
+       #if ! JUCE_IOS
         if (hasShutdown || filter == nullptr)
             return;
 
@@ -1349,12 +1354,16 @@ public:
                 cEffect.flags &= ~effFlagsHasEditor;
             }
         }
+       #endif
 
         shouldDeleteEditor = false;
     }
 
     void deleteEditor (bool canDeleteLaterIfModal)
     {
+       #if JUCE_IOS
+        ignoreUnused (canDeleteLaterIfModal);
+       #else
         JUCE_AUTORELEASEPOOL
         {
             PopupMenu::dismissAllActiveMenus();
@@ -1396,6 +1405,7 @@ public:
             hostWindow = 0;
            #endif
         }
+       #endif
     }
 
     VstIntPtr dispatcher (VstInt32 opCode, VstInt32 index, VstIntPtr value, void* ptr, float opt) override
@@ -1403,6 +1413,7 @@ public:
         if (hasShutdown)
             return 0;
 
+       #if ! JUCE_IOS
         if (opCode == effEditIdle)
         {
             doIdleCallback();
@@ -1432,7 +1443,7 @@ public:
                 hostWindow = (Window) ptr;
                 Window editorWnd = (Window) editorComp->getWindowHandle();
                 XReparentWindow (display, editorWnd, hostWindow, 0, 0);
-              #else
+              #elif JUCE_MAC
                 hostWindow = attachComponentToWindowRefVST (editorComp, ptr, useNSView);
               #endif
                 editorComp->setVisible (true);
@@ -1467,10 +1478,11 @@ public:
 
             return 0;
         }
-
+       #endif
         return AudioEffectX::dispatcher (opCode, index, value, ptr, opt);
     }
 
+   #if ! JUCE_IOS
     void resizeHostWindow (int newWidth, int newHeight)
     {
         if (editorComp != nullptr)
@@ -1659,6 +1671,7 @@ public:
 
         JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (EditorCompWrapper)
     };
+   #endif
 
     //==============================================================================
 private:
@@ -1666,8 +1679,10 @@ private:
     PluginBusUtilities busUtils;
     juce::MemoryBlock chunkMemory;
     juce::uint32 chunkMemoryTime;
+   #if ! JUCE_IOS
     ScopedPointer<EditorCompWrapper> editorComp;
     ERect editorSize;
+   #endif
     MidiBuffer midiEvents;
     VSTMidiEventList outgoingEvents;
     bool isProcessing, isBypassed, hasShutdown, isInSizeWindow, firstProcessCallback;
@@ -1680,7 +1695,7 @@ private:
     void* hostWindow;
    #elif JUCE_LINUX
     Window hostWindow;
-   #else
+   #elif JUCE_WINDOWS
     HWND hostWindow;
    #endif
 
@@ -1974,14 +1989,17 @@ namespace
 
 //==============================================================================
 // Mac startup code..
-#if JUCE_MAC
+#if JUCE_MAC || JUCE_IOS
 
     JUCE_EXPORTED_FUNCTION AEffect* VSTPluginMain (audioMasterCallback audioMaster);
     JUCE_EXPORTED_FUNCTION AEffect* VSTPluginMain (audioMasterCallback audioMaster)
     {
         JUCE_DECLARE_WRAPPER_TYPE (wrapperType_VST);
 
+       #if JUCE_MAC
         initialiseMacVST();
+       #endif
+
         return pluginEntryPoint (audioMaster);
     }
 
@@ -1990,7 +2008,10 @@ namespace
     {
         JUCE_DECLARE_WRAPPER_TYPE (wrapperType_VST);
 
+       #if JUCE_MAC
         initialiseMacVST();
+       #endif
+
         return pluginEntryPoint (audioMaster);
     }
 

modules/juce_audio_plugin_client/VST/juce_VST_Wrapper.mm

@@ -22,6 +22,8 @@
   ==============================================================================
 */
 
+#if JUCE_MAC
+
 #include "../../juce_core/system/juce_TargetPlatform.h"
 #include "../utility/juce_CheckSettingMacros.h"
 
@@ -311,3 +313,4 @@ bool forwardCurrentKeyEventToHostVST (Component* comp, bool isNSView)
 } // (juce namespace)
 
 #endif
+#endif

modules/juce_audio_processors/format/juce_AudioPluginFormatManager.cpp

@@ -65,7 +65,7 @@ void AudioPluginFormatManager::addDefaultFormats()
     // you should only call this method once!
     for (int i = formats.size(); --i >= 0;)
     {
-       #if JUCE_PLUGINHOST_VST && (JUCE_MAC || JUCE_WINDOWS || JUCE_LINUX)
+       #if JUCE_PLUGINHOST_VST && (JUCE_MAC || JUCE_WINDOWS || JUCE_LINUX || JUCE_IOS)
         jassert (dynamic_cast<VSTPluginFormat*> (formats[i]) == nullptr);
        #endif
 
@@ -87,7 +87,7 @@ void AudioPluginFormatManager::addDefaultFormats()
     formats.add (new AudioUnitPluginFormat());
    #endif
 
-   #if JUCE_PLUGINHOST_VST && (JUCE_MAC || JUCE_WINDOWS || JUCE_LINUX)
+   #if JUCE_PLUGINHOST_VST && (JUCE_MAC || JUCE_WINDOWS || JUCE_LINUX || JUCE_IOS)
     formats.add (new VSTPluginFormat());
    #endif
 

modules/juce_audio_processors/format_types/juce_VSTPluginFormat.cpp

@@ -22,7 +22,7 @@
   ==============================================================================
 */
 
-#if JUCE_PLUGINHOST_VST && (JUCE_MAC || JUCE_WINDOWS || JUCE_LINUX)
+#if JUCE_PLUGINHOST_VST && (JUCE_MAC || JUCE_WINDOWS || JUCE_LINUX || JUCE_IOS)
 
 //==============================================================================
 #if JUCE_MAC && JUCE_SUPPORT_CARBON
@@ -165,7 +165,7 @@ namespace
     {
        #if JUCE_WINDOWS
         return timeGetTime() * 1000000.0;
-       #elif JUCE_LINUX
+       #elif JUCE_LINUX || JUCE_IOS
         timeval micro;
         gettimeofday (&micro, 0);
         return micro.tv_usec * 1000.0;
@@ -378,7 +378,7 @@ public:
     {
         getActiveModules().add (this);
 
-       #if JUCE_WINDOWS || JUCE_LINUX
+       #if JUCE_WINDOWS || JUCE_LINUX || JUCE_IOS
         fullParentDirectoryPathName = f.getParentDirectory().getFullPathName();
        #elif JUCE_MAC
         FSRef ref;
@@ -394,9 +394,12 @@ public:
     }
 
     //==============================================================================
-#if JUCE_WINDOWS || JUCE_LINUX
-    DynamicLibrary module;
+   #if ! JUCE_MAC
     String fullParentDirectoryPathName;
+   #endif
+
+  #if JUCE_WINDOWS || JUCE_LINUX
+    DynamicLibrary module;
 
     bool open()
     {
@@ -457,11 +460,14 @@ public:
         return String();
     }
    #endif
-#else
+  #else
     Handle resHandle;
     CFBundleRef bundleRef;
+
+   #if JUCE_MAC
+    CFBundleRefNum resFileId;
     FSSpec parentDirFSSpec;
-    ResFileRefNum resFileId;
+   #endif
 
     bool open()
     {
@@ -504,13 +510,18 @@ public:
                             if (pluginName.isEmpty())
                                 pluginName = file.getFileNameWithoutExtension();
 
+                           #if JUCE_MAC
                             resFileId = CFBundleOpenBundleResourceMap (bundleRef);
+                           #endif
 
                             ok = true;
 
                             Array<File> vstXmlFiles;
-                            file.getChildFile ("Contents")
+                            file
+                               #if JUCE_MAC
+                                .getChildFile ("Contents")
                                 .getChildFile ("Resources")
+                               #endif
                                 .findChildFiles (vstXmlFiles, File::findFiles, false, "*.vstxml");
 
                             if (vstXmlFiles.size() > 0)
@@ -535,7 +546,9 @@ public:
     {
         if (bundleRef != 0)
         {
+           #if JUCE_MAC
             CFBundleCloseBundleResourceMap (bundleRef, resFileId);
+           #endif
 
             if (CFGetRetainCount (bundleRef) == 1)
                 CFBundleUnloadExecutable (bundleRef);
@@ -550,7 +563,7 @@ public:
         eff->dispatcher (eff, effClose, 0, 0, 0, 0);
     }
 
-#endif
+  #endif
 
 private:
     JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ModuleHandle)
@@ -856,7 +869,12 @@ public:
     }
 
     //==============================================================================
+   #if JUCE_IOS
+    bool hasEditor() const override                  { return false; }
+   #else
     bool hasEditor() const override                  { return effect != nullptr && (effect->flags & effFlagsHasEditor) != 0; }
+   #endif
+
     AudioProcessorEditor* createEditor() override;
 
     //==============================================================================
@@ -1787,6 +1805,7 @@ private:
 };
 
 //==============================================================================
+#if ! JUCE_IOS
 class VSTPluginWindow;
 static Array<VSTPluginWindow*> activeVSTWindows;
 
@@ -2525,7 +2544,7 @@ private:
 
     JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (VSTPluginWindow)
 };
-
+#endif
 #if JUCE_MSVC
  #pragma warning (pop)
 #endif
@@ -2533,8 +2552,12 @@ private:
 //==============================================================================
 AudioProcessorEditor* VSTPluginInstance::createEditor()
 {
+   #if JUCE_IOS
+    return nullptr;
+   #else
     return hasEditor() ? new VSTPluginWindow (*this)
                        : nullptr;
+   #endif
 }
 
 //==============================================================================
@@ -2676,7 +2699,7 @@ bool VSTPluginFormat::fileMightContainThisPluginType (const String& fileOrIdenti
 {
     const File f (File::createFileWithoutCheckingPath (fileOrIdentifier));
 
-  #if JUCE_MAC
+  #if JUCE_MAC || JUCE_IOS
     return f.isDirectory() && f.hasFileExtension (".vst");
   #elif JUCE_WINDOWS
     return f.existsAsFile() && f.hasFileExtension (".dll");
@@ -2751,6 +2774,19 @@ FileSearchPath VSTPluginFormat::getDefaultLocationsToSearch()
     paths.add (WindowsRegistry::getValue ("HKEY_LOCAL_MACHINE\\Software\\VST\\VSTPluginsPath",
                                           programFiles + "\\VstPlugins"));
     return paths;
+   #elif JUCE_IOS
+    // on iOS you can only load plug-ins inside the hosts bundle folder
+    CFURLRef relativePluginDir = CFBundleCopyBuiltInPlugInsURL (CFBundleGetMainBundle());
+    CFURLRef pluginDir = CFURLCopyAbsoluteURL (relativePluginDir);
+    CFRelease (relativePluginDir);
+
+    CFStringRef path = CFURLCopyFileSystemPath (pluginDir, kCFURLPOSIXPathStyle);
+    CFRelease (pluginDir);
+
+    FileSearchPath retval (String (CFStringGetCStringPtr (path, kCFStringEncodingUTF8)));
+    CFRelease (path);
+
+    return retval;
    #endif
 }
 

modules/juce_audio_processors/format_types/juce_VSTPluginFormat.h

@@ -22,7 +22,7 @@
   ==============================================================================
 */
 
-#if (JUCE_PLUGINHOST_VST && (JUCE_MAC || JUCE_WINDOWS || JUCE_LINUX)) || DOXYGEN
+#if (JUCE_PLUGINHOST_VST && (JUCE_MAC || JUCE_WINDOWS || JUCE_LINUX || JUCE_IOS)) || DOXYGEN
 
 //==============================================================================
 /**

modules/juce_audio_processors/scanning/juce_PluginListComponent.cpp

@@ -348,8 +348,10 @@ public:
 
         if (path.getNumPaths() > 0) // if the path is empty, then paths aren't used for this format.
         {
+           #if ! JUCE_IOS
             if (propertiesToUse != nullptr)
                 path = getLastSearchPath (*propertiesToUse, formatToScan);
+           #endif
 
             pathList.setSize (500, 300);
             pathList.setPath (path);