CGDataProvider.h

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#ifndef __CGDATAPROVIDER__
#define __CGDATAPROVIDER__
 
#ifndef __CGBASE__
#include <CGBase.h>
#endif
 
#ifndef __CFURL__
#include <CFURL.h>
#endif
 
#if PRAGMA_ONCE
#pragma once
#endif
 
#ifdef __cplusplus
extern "C"
{
#endif
 
#if PRAGMA_IMPORT
#pragma import on
#endif
 
#if PRAGMA_STRUCT_ALIGN
#pragma options align = mac68k
#elif PRAGMA_STRUCT_PACKPUSH
#pragma pack(push, 2)
#elif PRAGMA_STRUCT_PACK
#pragma pack(2)
#endif
 
  typedef struct CGDataProvider *CGDataProviderRef;
  typedef CALLBACK_API_C(size_t, CGGetBytesProcPtr)(void *info, void *buffer,
                                                    size_t count);
  typedef CALLBACK_API_C(void, CGSkipBytesProcPtr)(void *info, size_t count);
  typedef CALLBACK_API_C(void, CGRewindProcPtr)(void *info);
  typedef CALLBACK_API_C(void, CGReleaseProviderProcPtr)(void *info);
  struct CGDataProviderCallbacks
  {
    CGGetBytesProcPtr getBytes;
    CGSkipBytesProcPtr skipBytes;
    CGRewindProcPtr rewind;
    CGReleaseProviderProcPtr releaseProvider;
  };
  typedef struct CGDataProviderCallbacks CGDataProviderCallbacks;
  typedef CALLBACK_API_C(void *, CGGetBytePointerProcPtr)(void *info);
  typedef CALLBACK_API_C(void, CGReleaseByteProcPtr)(void *info,
                                                     const void *pointer);
  typedef CALLBACK_API_C(size_t,
                         CGGetBytesDirectProcPtr)(void *info, void *buffer,
                                                  size_t offset, size_t count);
  struct CGDataProviderDirectAccessCallbacks
  {
    CGGetBytePointerProcPtr getBytePointer;
    CGReleaseByteProcPtr releaseBytePointer;
    CGGetBytesDirectProcPtr getBytes;
    CGReleaseProviderProcPtr releaseProvider;
  };
  typedef struct CGDataProviderDirectAccessCallbacks
      CGDataProviderDirectAccessCallbacks;
  typedef CALLBACK_API_C(void, CGReleaseDataProcPtr)(void *info, const void *data,
                                                     size_t size);
  CGDataProviderRef
  CGDataProviderCreate(void *info, const CGDataProviderCallbacks *callbacks);
 
  CGDataProviderRef
  CGDataProviderCreateDirectAccess(
      void *info, size_t size,
      const CGDataProviderDirectAccessCallbacks *callbacks);
 
  CGDataProviderRef
  CGDataProviderCreateWithData(void *info, const void *data, size_t size,
                               CGReleaseDataProcPtr releaseData);
 
  CGDataProviderRef
  CGDataProviderCreateWithURL(CFURLRef url);
 
  CGDataProviderRef
  CGDataProviderRetain(CGDataProviderRef provider);
 
  void
  CGDataProviderRelease(CGDataProviderRef provider);
 
#if PRAGMA_STRUCT_ALIGN
#pragma options align = reset
#elif PRAGMA_STRUCT_PACKPUSH
#pragma pack(pop)
#elif PRAGMA_STRUCT_PACK
#pragma pack()
#endif
 
#ifdef PRAGMA_IMPORT_OFF
#pragma import off
#elif PRAGMA_IMPORT
#pragma import reset
#endif
 
#ifdef __cplusplus
}
#endif
 
#endif