Android rayshader sample.

samples/android_sample/jni/vm_glue.h

+#ifndef VM_GLUE_H
+#define VM_GLUE_H
+
+#include <android_native_app_glue.h>
+#include "include/dart_api.h"
+#include "bin/dartutils.h"
+//#include "timer.h"
+#include "graphics.h"
+//#include "context.h"
+
+class VMGlue {
+ public:
+  VMGlue(Graphics* pGraphics);
+
+  int initializeVM();
+  int startMainIsolate();
+  int callSetup();
+  int callUpdate();
+  int onMotionEvent(const char* function, int64_t when,
+                    float lMoveX, float lMoveY);
+  int onKeyEvent(const char* pFunction, int64_t pWhen, int32_t pFlags,
+             int32_t pKeyCode, int32_t pMetaState, int32_t pRepeat);
+  void finishMainIsolate();
+
+ private:
+  int invoke(const char *function, int argc, Dart_Handle* args);
+
+  static int ErrorExit(const char* format, ...);
+  static Dart_Handle SetupRuntimeOptions(CommandLineOptions* options,
+                                         const char* executable_name,
+                                         const char* script_name);
+  static bool CreateIsolateAndSetupHelper(const char* script_uri,
+                                          const char* main,
+                                          void* data,
+                                          char** error);
+  static bool CreateIsolateAndSetup(const char* script_uri,
+                                    const char* main,
+                                    void* data, char** error);
+  static void ShutdownIsolate(void* callback_data);
+
+  Graphics *mGraphics;
+  Dart_Isolate mIsolate;
+  bool mInitializedVM;
+  bool mInitializedScript;
+};
+
+#endif