freeimageio.cpp

这是VCF框架的代码

// ==========================================================
// Input/Output functions
//
// Design and implementation by
// - Floris van den Berg ([e-mail])
//
// This file is part of FreeImage
//
// COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, WITHOUT WARRANTY
// OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, WARRANTIES
// THAT THE COVERED CODE IS FREE OF DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE
// OR NON-INFRINGING. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED
// CODE IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, YOU (NOT
// THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE COST OF ANY NECESSARY
// SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL
// PART OF THIS LICENSE. NO USE OF ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER
// THIS DISCLAIMER.
//
// Use at your own risk!
// ==========================================================

#include <stdio.h>

#include "thirdparty/common/FreeImage/Source/FreeImageIO.h"

// ----------------------------------------------------------

unsigned
_ReadProc(void *buffer, unsigned size, unsigned count, fi_handle handle) {
	return fread(buffer, size, count, (FILE *)handle);
}

unsigned
_WriteProc(void *buffer, unsigned size, unsigned count, fi_handle handle) {
	return fwrite(buffer, size, count, (FILE *)handle);
}

int
_SeekProc(fi_handle handle, long offset, int origin) {
	return fseek((FILE *)handle, offset, origin);
}

long
_TellProc(fi_handle handle) {
	return ftell((FILE *)handle);
}

// ----------------------------------------------------------

void
SetDefaultIO(FreeImageIO *io) {
	io->read_proc  = _ReadProc;
	io->seek_proc  = _SeekProc;
	io->tell_proc  = _TellProc;
	io->write_proc = _WriteProc;
}