.. _program_listing_file_include_flamegpu_runtime_HostAPI_macros.h:

Program Listing for File HostAPI_macros.h
=========================================

|exhale_lsh| :ref:`Return to documentation for file <file_include_flamegpu_runtime_HostAPI_macros.h>` (``include/flamegpu/runtime/HostAPI_macros.h``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   #ifndef INCLUDE_FLAMEGPU_RUNTIME_HOSTAPI_MACROS_H_
   #define INCLUDE_FLAMEGPU_RUNTIME_HOSTAPI_MACROS_H_
   
   namespace flamegpu {
   
   class HostAPI;
   
   typedef void (*FLAMEGPU_HOST_FUNCTION_POINTER)(HostAPI *api);
   
   typedef FLAMEGPU_HOST_FUNCTION_POINTER FLAMEGPU_INIT_FUNCTION_POINTER;
   typedef FLAMEGPU_HOST_FUNCTION_POINTER FLAMEGPU_STEP_FUNCTION_POINTER;
   typedef FLAMEGPU_HOST_FUNCTION_POINTER FLAMEGPU_EXIT_FUNCTION_POINTER;
   #define FLAMEGPU_INIT_FUNCTION(funcName) FLAMEGPU_HOST_FUNCTION(funcName)
   #define FLAMEGPU_STEP_FUNCTION(funcName) FLAMEGPU_HOST_FUNCTION(funcName)
   #define FLAMEGPU_EXIT_FUNCTION(funcName) FLAMEGPU_HOST_FUNCTION(funcName)
   #define FLAMEGPU_HOST_FUNCTION_DECL(funcName) \
   extern flamegpu::FLAMEGPU_HOST_FUNCTION_POINTER funcName;
   
   #define FLAMEGPU_HOST_FUNCTION_DEF(funcName) \
   void funcName ## _impl(flamegpu::HostAPI* FLAMEGPU); \
   flamegpu::FLAMEGPU_HOST_FUNCTION_POINTER funcName = funcName ## _impl; \
   void funcName ## _impl(flamegpu::HostAPI* FLAMEGPU)
   
   #define FLAMEGPU_HOST_FUNCTION(funcName) FLAMEGPU_HOST_FUNCTION_DEF(funcName)
   
   enum CONDITION_RESULT { CONTINUE, EXIT };
   typedef CONDITION_RESULT (*FLAMEGPU_HOST_CONDITION_POINTER)(HostAPI *api);
   
   typedef FLAMEGPU_HOST_CONDITION_POINTER FLAMEGPU_EXIT_CONDITION_POINTER;
   #define FLAMEGPU_EXIT_CONDITION(funcName) FLAMEGPU_HOST_CONDITION(funcName)
   
   #define FLAMEGPU_HOST_CONDITION(funcName) \
   flamegpu::CONDITION_RESULT funcName ## _impl(flamegpu::HostAPI* FLAMEGPU); \
   flamegpu::FLAMEGPU_HOST_CONDITION_POINTER funcName = funcName ## _impl;\
   flamegpu::CONDITION_RESULT funcName ## _impl(flamegpu::HostAPI* FLAMEGPU)
   
   }  // namespace flamegpu
   
   #endif  // INCLUDE_FLAMEGPU_RUNTIME_HOSTAPI_MACROS_H_