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Add first element (FT_IsDemo) to enum idCommon::FunctionType

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GetAdditionalFunction() will return a function that returns true
if we're running the Doom3 demo version.

Not really relevant for mods, but I use this to enable some
Demo-specific hacks/workarounds in base.dll
Adding this here anyway to make sure the next function type added will
get another ID (maybe 2).
This commit is contained in:
Daniel Gibson 2019-01-04 20:29:38 +01:00
parent b7d77c468a
commit 7b4b2a8684
1 changed files with 5 additions and 6 deletions
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11
framework/Common.h
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@ -244,10 +244,7 @@ public:
* *
* Similar to SetCallback() I've also added GetAdditionalFunction() to get a function pointer * Similar to SetCallback() I've also added GetAdditionalFunction() to get a function pointer
* from dhewm3 that Mods can call (and that's not exported via the normal interface classes). * from dhewm3 that Mods can call (and that's not exported via the normal interface classes).
* Right now GetAdditionalFunction() will always just return false and do nothing, but if * Right now it's only used for a Doom3 Demo specific hack only relevant for base.dll (not for Mods)
* some Mod needs some specific function in the future, it could be implemented with
* GetAdditionalFunction() - again without breaking the game API and ABI for all the other
* Mods that don't need that function.
*/ */
typedef void* (*FunctionPointer)(void*); // needs to be cast to/from real type! typedef void* (*FunctionPointer)(void*); // needs to be cast to/from real type!
@ -265,13 +262,15 @@ public:
virtual bool SetCallback(CallbackType cbt, FunctionPointer cb, void* userArg) = 0; virtual bool SetCallback(CallbackType cbt, FunctionPointer cb, void* userArg) = 0;
enum FunctionType { enum FunctionType {
// None yet.. // the function pointer's signature is bool fn(void) - no arguments.
// it returns true if we're currently running the doom3 demo
// not relevant for mods, only for game/ aka base.dll/base.so/...
FT_IsDemo = 1,
}; };
// returns true if that function is available in this version of dhewm3 // returns true if that function is available in this version of dhewm3
// *out_fnptr will be the function (you'll have to cast it probably) // *out_fnptr will be the function (you'll have to cast it probably)
// *out_userArg will be an argument you have to pass to the function, if appropriate (else NULL) // *out_userArg will be an argument you have to pass to the function, if appropriate (else NULL)
// NOTE: this doesn't do anything yet, but allows to add ugly mod-specific hacks without breaking the Game interface
virtual bool GetAdditionalFunction(FunctionType ft, FunctionPointer* out_fnptr, void** out_userArg) = 0; virtual bool GetAdditionalFunction(FunctionType ft, FunctionPointer* out_fnptr, void** out_userArg) = 0;
}; };