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Diffstat (limited to 'primedev/plugins/interfaces/interface.h')
| -rw-r--r-- | primedev/plugins/interfaces/interface.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/primedev/plugins/interfaces/interface.h b/primedev/plugins/interfaces/interface.h new file mode 100644 index 00000000..440db5b2 --- /dev/null +++ b/primedev/plugins/interfaces/interface.h @@ -0,0 +1,39 @@ +#ifndef INTERFACE_H +#define INTERFACE_H + +typedef void* (*InstantiateInterfaceFn)(); + +// Used internally to register classes. +class InterfaceReg +{ +public: + InterfaceReg(InstantiateInterfaceFn fn, const char* pName); + + InstantiateInterfaceFn m_CreateFn; + const char* m_pName; + InterfaceReg* m_pNext; +}; + +// Use this to expose an interface that can have multiple instances. +#define EXPOSE_INTERFACE(className, interfaceName, versionName) \ + static void* __Create##className##_interface() \ + { \ + return static_cast<interfaceName*>(new className); \ + } \ + static InterfaceReg __g_Create##className##_reg(__Create##className##_interface, versionName); + +#define EXPOSE_SINGLE_INTERFACE_GLOBALVAR(className, interfaceName, versionName, globalVarName) \ + static void* __Create##className##interfaceName##_interface() \ + { \ + return static_cast<interfaceName*>(&globalVarName); \ + } \ + static InterfaceReg __g_Create##className##interfaceName##_reg(__Create##className##interfaceName##_interface, versionName); + +// Use this to expose a singleton interface. This creates the global variable for you automatically. +#define EXPOSE_SINGLE_INTERFACE(className, interfaceName, versionName) \ + static className __g_##className##_singleton; \ + EXPOSE_SINGLE_INTERFACE_GLOBALVAR(className, interfaceName, versionName, __g_##className##_singleton) + +EXPORT void* CreateInterface(const char* pName, InterfaceStatus* pReturnCode); + +#endif |