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 #if !defined(WIN32) || defined(__CYGWIN__) || defined(__MINGW32__)
  22
  23 #ifdef __cplusplus
  24 extern "C" {
  25 #endif
  26
  27 #ifndef GUID_TYPE
  28 #define GUID_TYPE
  29 typedef struct
  30 {
  31     uint32_t f1;
  32     uint16_t f2;
  33     uint16_t f3;
  34     uint8_t  f4[8];
  35 } GUID;
  36 #endif
  37
  38 extern const GUID IID_IUnknown;
  39 extern const GUID IID_IClassFactory;
  40
  41 typedef long (*GETCLASSOBJECT) (GUID* clsid, const GUID* iid, void** ppv);
  42 int RegisterComClass(const GUID* clsid, GETCLASSOBJECT gcs);
  43 int UnregisterComClass(const GUID* clsid, GETCLASSOBJECT gcs);
  44
  45 #ifndef STDCALL
  46 #define STDCALL __attribute__((__stdcall__))
  47 #endif
  48
  49 struct IUnknown;
  50 struct IClassFactory;
  51 struct IUnknown_vt
  52 {
  53     long STDCALL (*QueryInterface)(struct IUnknown* this, const GUID* iid, void** ppv);
  54     long STDCALL (*AddRef)(struct IUnknown* this) ;
  55     long STDCALL (*Release)(struct IUnknown* this) ;
  56 } ;
  57
  58 typedef struct IUnknown
  59 {
  60     struct IUnknown_vt* vt;
  61 } IUnknown;
  62
  63 struct IClassFactory_vt
  64 {
  65     long STDCALL (*QueryInterface)(struct IUnknown* this, const GUID* iid, void** ppv);
  66     long STDCALL (*AddRef)(struct IUnknown* this) ;
  67     long STDCALL (*Release)(struct IUnknown* this) ;
  68     long STDCALL (*CreateInstance)(struct IClassFactory* this, struct IUnknown* pUnkOuter, const GUID* riid, void** ppvObject);
  69 };
  70
  71 struct IClassFactory
  72 {
  73     struct IClassFactory_vt* vt;
  74 };
  75
  76 #ifdef WIN32_LOADER
  77 long CoCreateInstance(GUID* rclsid, struct IUnknown* pUnkOuter,
  78                       long dwClsContext, const GUID* riid, void** ppv);
  79 void* CoTaskMemAlloc(unsigned long cb);
  80 void CoTaskMemFree(void* cb);
  81 #else
  82 long STDCALL CoCreateInstance(GUID* rclsid, struct IUnknown* pUnkOuter,
  83                       long dwClsContext, const GUID* riid, void** ppv);
  84 void* STDCALL  CoTaskMemAlloc(unsigned long);
  85 void  STDCALL  CoTaskMemFree(void*);
  86 #endif
  87
  88 #ifdef __cplusplus
  89 };
  90 #endif /* __cplusplus */
  91
  92 #endif /* WIN32 */
  93
  94 #endif /* MPLAYER_COM_H */