lv2export: Make sure to keep context valid during RT

lv2export/Makefile

@@ -34,7 +34,7 @@ BASE_FLAGS += -DARCH_LIN
 endif
 
 BASE_FLAGS += -fno-finite-math-only
-BASE_FLAGS += -I../dpf/dgl
+# BASE_FLAGS += -I../dpf/dgl
 BASE_FLAGS += -I../dpf/dgl/src/nanovg
 BASE_FLAGS += -I../dpf/distrho
 BASE_FLAGS += -I../include
@@ -189,3 +189,9 @@ $(BUILD_DIR)/plugin/ChowDSP/%.o: ../plugins/ChowDSP/src/%
 	@echo "Compiling $< (ChowDSP Chorus)"
 	$(SILENT)$(CXX) $< $(BUILD_CXX_FLAGS) -UPRIVATE -c -o $@ \
 		-DpluginInstance=pluginInstance__ChowDSP
+
+# --------------------------------------------------------------
+
+-include $(BUILD_OBJS:%.o=%.d)
+
+# --------------------------------------------------------------

lv2export/lv2plugin.cpp

@@ -87,6 +87,7 @@ std::vector<Plugin*> plugins;
 } // namespace rack
 
 struct PluginLv2 {
+    Context* context;
     Plugin* plugin;
     engine::Module* module;
     float sampleRate;
@@ -97,7 +98,7 @@ struct PluginLv2 {
     PluginLv2(double sr)
     {
         // FIXME shared instance for these 2
-        Context* const context = new Context;
+        context = new Context;
         context->engine = new Engine;
         context->engine->internal->sampleRate = sr;
         contextSet(context);
@@ -126,12 +127,14 @@ struct PluginLv2 {
 
     PluginLv2()
     {
+        contextSet(context);
+
         delete[] ports;
         delete module;
 
         // FIXME shared instance for this
         delete plugin;
-        delete contextGet();
+        delete context;
     }
 
     void lv2_connect_port(const uint32_t port, void* const dataLocation)
@@ -141,6 +144,7 @@ struct PluginLv2 {
 
     void lv2_activate()
     {
+        contextSet(context);
         module->onReset();
     }
 
@@ -149,6 +153,8 @@ struct PluginLv2 {
         if (sampleCount == 0)
             return;
 
+        contextSet(context);
+
         Module::ProcessArgs args = {
             sampleRate,
             1.0f / sampleRate,

src/override/RemoteNanoVG.cpp

@@ -19,7 +19,7 @@
 #include "OpenGL.hpp"
 #endif
 
-#include "src/nanovg/nanovg.h"
+#include "nanovg.h"
 
 #ifdef HEADLESS
 struct NVGLUframebuffer;
@@ -29,8 +29,8 @@ void nvgluDeleteFramebuffer(NVGLUframebuffer* fb) {}
 #else
 # define NANOVG_GLES2_IMPLEMENTATION
 # define NANOVG_FBO_VALID 1
-# include "src/nanovg/nanovg_gl.h"
-# include "src/nanovg/nanovg_gl_utils.h"
+# include "nanovg_gl.h"
+# include "nanovg_gl_utils.h"
 #endif
 
 #if defined(__GNUC__) && (__GNUC__ >= 6)
@@ -39,7 +39,7 @@ void nvgluDeleteFramebuffer(NVGLUframebuffer* fb) {}
 # pragma GCC diagnostic ignored "-Wshift-negative-value"
 #endif
 
-#include "src/nanovg/nanovg.c"
+#include "nanovg.c"
 
 #if defined(__GNUC__) && (__GNUC__ >= 6)
 # pragma GCC diagnostic pop