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Diffstat (limited to 'X-Plane-SDK/CHeaders/XPLM/XPLMProcessing.h')
| -rwxr-xr-x | X-Plane-SDK/CHeaders/XPLM/XPLMProcessing.h | 254 |
1 files changed, 254 insertions, 0 deletions
diff --git a/X-Plane-SDK/CHeaders/XPLM/XPLMProcessing.h b/X-Plane-SDK/CHeaders/XPLM/XPLMProcessing.h new file mode 100755 index 0000000..99fb6ea --- /dev/null +++ b/X-Plane-SDK/CHeaders/XPLM/XPLMProcessing.h @@ -0,0 +1,254 @@ +#ifndef _XPLMProcessing_h_ +#define _XPLMProcessing_h_ + +/* + * Copyright 2005-2012 Sandy Barbour and Ben Supnik + * + * All rights reserved. See license.txt for usage. + * + * X-Plane SDK Version: 2.1.1 + * + */ + +/* + * This API allows you to get regular callbacks during the flight loop, the + * part of X-Plane where the plane's position calculates the physics of + * flight, etc. Use these APIs to accomplish periodic tasks like logging data + * and performing I/O. + * + * WARNING: Do NOT use these callbacks to draw! You cannot draw during flight + * loop callbacks. Use the drawing callbacks (see XPLMDisplay for more info) + * for graphics. + * + */ + +#include "XPLMDefs.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/*************************************************************************** + * FLIGHT LOOP CALLBACKS + ***************************************************************************/ +/* + * + * + */ + + + +#if defined(XPLM210) +/* + * XPLMFlightLoopPhaseType + * + * You can register a flight loop callback to run either before or after the + * flight model is integrated by X-Plane. + * + */ +enum { + /* Your callback runs before X-Plane integrates the flight model. */ + xplm_FlightLoop_Phase_BeforeFlightModel = 0 + + /* Your callback runs after X-Plane integrates the flight model. */ + ,xplm_FlightLoop_Phase_AfterFlightModel = 1 + + +}; +typedef int XPLMFlightLoopPhaseType; +#endif /* XPLM210 */ + +#if defined(XPLM210) +/* + * XPLMFlightLoopID + * + * This is an opaque identifier for a flight loop callback. You can use this + * identifier to easily track and remove your callbacks, or to use the new + * flight loop APIs. + * + */ +typedef void * XPLMFlightLoopID; +#endif /* XPLM210 */ + +/* + * XPLMFlightLoop_f + * + * This is your flight loop callback. Each time the flight loop is iterated + * through, you receive this call at the end. You receive a time since you + * were last called and a time since the last loop, as well as a loop counter. + * The 'phase' parameter is deprecated and should be ignored. + * + * Your return value controls when you will next be called. Return 0 to stop + * receiving callbacks. Pass a positive number to specify how many seconds + * until the next callback. (You will be called at or after this time, not + * before.) Pass a negative number to specify how many loops must go by until + * you are called. For example, -1.0 means call me the very next loop. Try + * to run your flight loop as infrequently as is practical, and suspend it + * (using return value 0) when you do not need it; lots of flight loop + * callbacks that do nothing lowers x-plane's frame rate. + * + * Your callback will NOT be unregistered if you return 0; it will merely be + * inactive. + * + * The reference constant you passed to your loop is passed back to you. + * + */ +typedef float (* XPLMFlightLoop_f)( + float inElapsedSinceLastCall, + float inElapsedTimeSinceLastFlightLoop, + int inCounter, + void * inRefcon); + +#if defined(XPLM210) +/* + * XPLMCreateFlightLoop_t + * + * XPLMCreateFlightLoop_t contains the parameters to create a new flight loop + * callback. The strsucture can be expanded in future SDKs - always set + * structSize to the size of your structure in bytes. + * + */ +typedef struct { + int structSize; + XPLMFlightLoopPhaseType phase; + XPLMFlightLoop_f callbackFunc; + void * refcon; +} XPLMCreateFlightLoop_t; +#endif /* XPLM210 */ + +/* + * XPLMGetElapsedTime + * + * This routine returns the elapsed time since the sim started up in decimal + * seconds. + * + */ +XPLM_API float XPLMGetElapsedTime(void); + +/* + * XPLMGetCycleNumber + * + * This routine returns a counter starting at zero for each sim cycle + * computed/video frame rendered. + * + */ +XPLM_API int XPLMGetCycleNumber(void); + +/* + * XPLMRegisterFlightLoopCallback + * + * This routine registers your flight loop callback. Pass in a pointer to a + * flight loop function and a refcon. inInterval defines when you will be + * called. Pass in a positive number to specify seconds from registration + * time to the next callback. Pass in a negative number to indicate when you + * will be called (e.g. pass -1 to be called at the next cylcle). Pass 0 to + * not be called; your callback will be inactive. + * + */ +XPLM_API void XPLMRegisterFlightLoopCallback( + XPLMFlightLoop_f inFlightLoop, + float inInterval, + void * inRefcon); + +/* + * XPLMUnregisterFlightLoopCallback + * + * This routine unregisters your flight loop callback. Do NOT call it from + * your flight loop callback. Once your flight loop callback is + * unregistered, it will not be called again. + * + */ +XPLM_API void XPLMUnregisterFlightLoopCallback( + XPLMFlightLoop_f inFlightLoop, + void * inRefcon); + +/* + * XPLMSetFlightLoopCallbackInterval + * + * This routine sets when a callback will be called. Do NOT call it from your + * callback; use the return value of the callback to change your callback + * interval from inside your callback. + * + * inInterval is formatted the same way as in XPLMRegisterFlightLoopCallback; + * positive for seconds, negative for cycles, and 0 for deactivating the + * callback. If inRelativeToNow is 1, times are from the time of this call; + * otherwise they are from the time the callback was last called (or the time + * it was registered if it has never been called. + * + */ +XPLM_API void XPLMSetFlightLoopCallbackInterval( + XPLMFlightLoop_f inFlightLoop, + float inInterval, + int inRelativeToNow, + void * inRefcon); + +#if defined(XPLM210) +/* + * XPLMCreateFlightLoop + * + * This routine creates a flight loop callback and returns its ID. The flight + * loop callback is created using the input param struct, and is inited to be + * unscheduled. + * + */ +XPLM_API XPLMFlightLoopID XPLMCreateFlightLoop( + XPLMCreateFlightLoop_t * inParams); +#endif /* XPLM210 */ + +#if defined(XPLM210) +/* + * XPLMDestroyFlightLoop + * + * This routine destroys a flight loop callback by ID. + * + */ +XPLM_API void XPLMDestroyFlightLoop( + XPLMFlightLoopID inFlightLoopID); +#endif /* XPLM210 */ + +#if defined(XPLM210) +/* + * XPLMScheduleFlightLoop + * + * This routine schedules a flight loop callback for future execution. If + * inInterval is negative, it is run in a certain number of frames based on + * the absolute value of the input. If the interval is positive, it is a + * duration in seconds. + * + * If inRelativeToNow is true, ties are interpretted relative to the time this + * routine is called; otherwise they are relative to the last call time or the + * time the flight loop was registered (if never called). + * + * THREAD SAFETY: it is legal to call this routine from any thread under the + * following conditions: + * + * 1. The call must be between the beginning of an XPLMEnable and the end of + * an XPLMDisable sequence. (That is, you must not call this routine from + * thread activity when your plugin was supposed to be disabled. Since + * plugins are only enabled while loaded, this also implies you cannot run + * this routine outside an XPLMStart/XPLMStop sequence.) + * + * 2. You may not call this routine re-entrantly for a single flight loop ID. + * (That is, you can't enable from multiple threads at the same time.) + * + * 3. You must call this routine between the time after XPLMCreateFlightLoop + * returns a value and the time you call XPLMDestroyFlightLoop. (That is, you + * must ensure that your threaded activity is within the life of the object. + * The SDK does not check this for you, nor does it synchronize destruction of + * the object.) + * + * 4. The object must be unscheduled if this routine is to be called from a + * thread other than the main thread. + * + */ +XPLM_API void XPLMScheduleFlightLoop( + XPLMFlightLoopID inFlightLoopID, + float inInterval, + int inRelativeToNow); +#endif /* XPLM210 */ + +#ifdef __cplusplus +} +#endif + +#endif |