mirror of https://github.com/mpv-player/mpv
48 lines
1.4 KiB
C
48 lines
1.4 KiB
C
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#ifndef _iunk_h
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#define _iunk_h
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#include "interfaces.h"
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#include "guids.h"
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#define DECLARE_IUNKNOWN(CLASSNAME) \
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int refcount; \
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static long STDCALL QueryInterface (IUnknown * This, GUID* riid, void **ppvObject); \
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static long STDCALL AddRef (IUnknown * This); \
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static long STDCALL Release (IUnknown * This);
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#define IMPLEMENT_IUNKNOWN(CLASSNAME) \
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long STDCALL CLASSNAME ::QueryInterface (IUnknown * This, GUID* riid, void **ppvObject) \
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{ \
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Debug printf(#CLASSNAME "::QueryInterface() called\n");\
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if(!ppvObject)return 0x80004003; \
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CLASSNAME * me=( CLASSNAME *)This; \
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int i=0; \
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for(const GUID* r=me->interfaces; i<sizeof(CLASSNAME ::interfaces)/sizeof(CLASSNAME ::interfaces[0]); r++, i++) \
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if(!memcmp(r, riid, 16)) \
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{ \
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This->vt->AddRef((IUnknown*)This); \
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*ppvObject=This; \
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return 0; \
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} \
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Debug printf("Failed\n"); \
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return 0x80004002; \
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} \
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\
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long STDCALL CLASSNAME ::AddRef ( \
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IUnknown * This) \
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{ \
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Debug printf(#CLASSNAME "::AddRef() called\n"); \
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CLASSNAME * me=( CLASSNAME *)This; \
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return ++(me->refcount); \
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} \
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\
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long STDCALL CLASSNAME ::Release ( \
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IUnknown * This) \
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{ \
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Debug printf(#CLASSNAME "::Release() called\n"); \
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CLASSNAME* me=( CLASSNAME *)This; \
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if(--(me->refcount) ==0) \
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delete ( CLASSNAME *) This; \
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return 0; \
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}
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#endif
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