Pass amount of frames to bridge process call

source/backend/engine/CarlaEngineBridge.cpp

@@ -1190,6 +1190,8 @@ protected:
                 }
 
                 case kPluginBridgeRtClientProcess: {
+                    const uint32_t frames(fShmRtClientControl.readUInt());
+
                     CARLA_SAFE_ASSERT_BREAK(fShmAudioPool.data != nullptr);
 
                     if (plugin != nullptr && plugin->isEnabled() && plugin->tryLock(fIsOffline))
@@ -1240,7 +1242,7 @@ protected:
                         }
 
                         plugin->initBuffers();
-                        plugin->process(audioIn, audioOut, cvIn, cvOut, pData->bufferSize);
+                        plugin->process(audioIn, audioOut, cvIn, cvOut, frames);
                         plugin->unlock();
                     }
 

source/backend/plugin/CarlaPluginBridge.cpp

@@ -1494,6 +1494,7 @@ public:
 
         {
             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientProcess);
+            fShmRtClientControl.writeUInt(frames);
             fShmRtClientControl.commitWrite();
         }
 

source/backend/plugin/CarlaPluginJack.cpp

@@ -967,6 +967,7 @@ public:
 
         {
             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientProcess);
+            fShmRtClientControl.writeUInt(frames);
             fShmRtClientControl.commitWrite();
         }
 

source/libjack/libjack.cpp

@@ -571,6 +571,11 @@ bool CarlaJackAppClient::handleRtData()
         }
 
         case kPluginBridgeRtClientProcess: {
+            const uint32_t frames(fShmRtClientControl.readUInt());
+            CARLA_SAFE_ASSERT_UINT2_BREAK(frames == fServer.bufferSize, frames, fServer.bufferSize);
+
+            // TODO tell client of xrun in case buffersize does not match
+
             // FIXME - lock if offline
             const CarlaMutexTryLocker cmtl(fRealtimeThreadMutex);
 

source/utils/CarlaBridgeDefines.hpp

@@ -20,7 +20,7 @@
 
 #include "CarlaRingBuffer.hpp"
 
-#define CARLA_PLUGIN_BRIDGE_API_VERSION 4
+#define CARLA_PLUGIN_BRIDGE_API_VERSION 5
 
 // -------------------------------------------------------------------------------------------------------------------
 
@@ -37,7 +37,7 @@ enum PluginBridgeRtClientOpcode {
     kPluginBridgeRtClientControlEventAllSoundOff, // uint/frame, byte/chan
     kPluginBridgeRtClientControlEventAllNotesOff, // uint/frame, byte/chan
     kPluginBridgeRtClientMidiEvent,               // uint/frame, byte/port, byte/size, byte[]/data
-    kPluginBridgeRtClientProcess,
+    kPluginBridgeRtClientProcess,                 // uint/frames
     kPluginBridgeRtClientQuit
 };