loader/com.h

   1 /*
   2  * Modified for use with MPlayer, detailed changelog at
   3  * http://svn.mplayerhq.hu/mplayer/trunk/
   4  */
   5
   6 #ifndef MPLAYER_COM_H
   7 #define MPLAYER_COM_H
   8
   9 #include "config.h"
  10
  11 #ifdef HAVE_STDINT_H
  12 #include <stdint.h>
  13 #else
  14 #include <inttypes.h>
  15 #endif
  16
  17 /**
  18  * Internal functions and structures for COM emulation code.
  19  */
  20
  21 #ifndef GUID_TYPE
  22 #define GUID_TYPE
  23 typedef struct
  24 {
  25     uint32_t f1;
  26     uint16_t f2;
  27     uint16_t f3;
  28     uint8_t  f4[8];
  29 } GUID;
  30 #endif
  31
  32 extern const GUID IID_IUnknown;
  33 extern const GUID IID_IClassFactory;
  34
  35 typedef long (*GETCLASSOBJECT) (GUID* clsid, const GUID* iid, void** ppv);
  36 int RegisterComClass(const GUID* clsid, GETCLASSOBJECT gcs);
  37 int UnregisterComClass(const GUID* clsid, GETCLASSOBJECT gcs);
  38
  39 #ifndef STDCALL
  40 #define STDCALL __attribute__((__stdcall__))
  41 #endif
  42
  43 struct IUnknown;
  44 struct IClassFactory;
  45 struct IUnknown_vt
  46 {
  47     long STDCALL (*QueryInterface)(struct IUnknown* this, const GUID* iid, void** ppv);
  48     long STDCALL (*AddRef)(struct IUnknown* this) ;
  49     long STDCALL (*Release)(struct IUnknown* this) ;
  50 } ;
  51
  52 typedef struct IUnknown
  53 {
  54     struct IUnknown_vt* vt;
  55 } IUnknown;
  56
  57 struct IClassFactory_vt
  58 {
  59     long STDCALL (*QueryInterface)(struct IUnknown* this, const GUID* iid, void** ppv);
  60     long STDCALL (*AddRef)(struct IUnknown* this) ;
  61     long STDCALL (*Release)(struct IUnknown* this) ;
  62     long STDCALL (*CreateInstance)(struct IClassFactory* this, struct IUnknown* pUnkOuter, const GUID* riid, void** ppvObject);
  63 };
  64
  65 struct IClassFactory
  66 {
  67     struct IClassFactory_vt* vt;
  68 };
  69
  70 #ifdef WIN32_LOADER
  71 long CoCreateInstance(GUID* rclsid, struct IUnknown* pUnkOuter,
  72                       long dwClsContext, const GUID* riid, void** ppv);
  73 void* CoTaskMemAlloc(unsigned long cb);
  74 void CoTaskMemFree(void* cb);
  75 #else
  76 long STDCALL CoCreateInstance(GUID* rclsid, struct IUnknown* pUnkOuter,
  77                       long dwClsContext, const GUID* riid, void** ppv);
  78 void* STDCALL  CoTaskMemAlloc(unsigned long);
  79 void  STDCALL  CoTaskMemFree(void*);
  80 #endif
  81
  82 #endif /* MPLAYER_COM_H */