mupen64plus-oldsvn/main/7zip/7zMain.c

#include "7zMain.h"

#ifdef _LZMA_IN_CB

#define kBufferSize (1 << 12)
Byte g_Buffer[kBufferSize];

SZ_RESULT SzFileReadImp(void *object, void **buffer, size_t maxRequiredSize, size_t *processedSize)
{
  CFileInStream *s = (CFileInStream *)object;
  size_t processedSizeLoc;
  if (maxRequiredSize > kBufferSize)
    maxRequiredSize = kBufferSize;
  processedSizeLoc = fread(g_Buffer, 1, maxRequiredSize, s->File);
  *buffer = g_Buffer;
  if (processedSize != 0)
    *processedSize = processedSizeLoc;
  return SZ_OK;
}

#else

SZ_RESULT SzFileReadImp(void *object, void *buffer, size_t size, size_t *processedSize)
{
  CFileInStream *s = (CFileInStream *)object;
  size_t processedSizeLoc = fread(buffer, 1, size, s->File);
  if (processedSize != 0)
    *processedSize = processedSizeLoc;
  return SZ_OK;
}

#endif

SZ_RESULT SzFileSeekImp(void *object, CFileSize pos)
{
  CFileInStream *s = (CFileInStream *)object;

  int res = fseek(s->File, (long)pos, SEEK_SET);
  if (res == 0)
    return SZ_OK;
  return SZE_FAIL;
}