loader/com.h

   1 /*
   2  * Modified for use with MPlayer, detailed CVS changelog at
   3  * http://www.mplayerhq.hu/cgi-bin/cvsweb.cgi/main/
   4  * $Id$
   5  */
   6
   7 #ifndef AVIFILE_COM_H
   8 #define AVIFILE_COM_H
   9
  10 #include "config.h"
  11
  12 #ifdef HAVE_STDINT_H
  13 #include <stdint.h>
  14 #else
  15 #include <inttypes.h>
  16 #endif
  17
  18 /**
  19  * Internal functions and structures for COM emulation code.
  20  */
  21
  22 #if !defined(WIN32) || defined(__CYGWIN__) || defined(__MINGW32__)
  23
  24 #ifdef __cplusplus
  25 extern "C" {
  26 #endif
  27
  28 void* CoTaskMemAlloc(unsigned long cb);
  29 void CoTaskMemFree(void* cb);
  30
  31 #ifndef GUID_TYPE
  32 #define GUID_TYPE
  33 typedef struct
  34 {
  35     uint32_t f1;
  36     uint16_t f2;
  37     uint16_t f3;
  38     uint8_t  f4[8];
  39 } GUID;
  40 #endif
  41
  42 extern const GUID IID_IUnknown;
  43 extern const GUID IID_IClassFactory;
  44
  45 typedef long (*GETCLASSOBJECT) (GUID* clsid, const GUID* iid, void** ppv);
  46 int RegisterComClass(const GUID* clsid, GETCLASSOBJECT gcs);
  47 int UnregisterComClass(const GUID* clsid, GETCLASSOBJECT gcs);
  48
  49 #ifndef STDCALL
  50 #define STDCALL __attribute__((__stdcall__))
  51 #endif
  52
  53 struct IUnknown;
  54 struct IClassFactory;
  55 struct IUnknown_vt
  56 {
  57     long STDCALL (*QueryInterface)(struct IUnknown* _this, const GUID* iid, void** ppv);
  58     long STDCALL (*AddRef)(struct IUnknown* _this) ;
  59     long STDCALL (*Release)(struct IUnknown* _this) ;
  60 } ;
  61
  62 typedef struct IUnknown
  63 {
  64     struct IUnknown_vt* vt;
  65 } IUnknown;
  66
  67 struct IClassFactory_vt
  68 {
  69     long STDCALL (*QueryInterface)(struct IUnknown* _this, const GUID* iid, void** ppv);
  70     long STDCALL (*AddRef)(struct IUnknown* _this) ;
  71     long STDCALL (*Release)(struct IUnknown* _this) ;
  72     long STDCALL (*CreateInstance)(struct IClassFactory* _this, struct IUnknown* pUnkOuter, const GUID* riid, void** ppvObject);
  73 };
  74
  75 struct IClassFactory
  76 {
  77     struct IClassFactory_vt* vt;
  78 };
  79
  80 long CoCreateInstance(GUID* rclsid, struct IUnknown* pUnkOuter,
  81                       long dwClsContext, const GUID* riid, void** ppv);
  82
  83 #ifdef __cplusplus
  84 };
  85 #endif /* __cplusplus */
  86
  87 #endif /* WIN32 */
  88
  89 #endif /* AVIFILE_COM_H */