gifread.cpp

jpeg压缩

////////////////////////////////////////////////////////////
//	GIFFile - A C++ class to allow reading and writing of GIF Images
//
//	Note : GIF support has been removed as of 9/24/97. I am 
//	pursuing a license from Unisys to enable me to include GIF support 
//  in this package. Until then, no GIF. Sorry. -cdl
//
////////////////////////////////////////////////////////////


#include "stdafx.h"
#include "giffile.h"

#ifdef _DEBUG
#undef THIS_FILE
static char BASED_CODE THIS_FILE[] = __FILE__;
#endif
#define new DEBUG_NEW

GIFFile::GIFFile()
{
	m_GIFErrorText="No GIF support"; // yet
}

GIFFile::~GIFFile()
{
	// nothing
}

////////////////////////////////////////////////////////////////////////////////
//
//	char * GIFFile::GIFReadInputFile(CString path, 
//								  UINT *width, 
//								  UINT *height)
//
//	Give a path.
//	It will read the .GIF at that path, allocate a buffer and give you
//	an RGB buffer back. width and height are modified to reflect the image dim's.
//
//	m_GIFErrorText is modifed to reflect error status
//
//

BYTE * GIFFile::GIFReadFileToRGB(CString path, 
								  UINT *width, 
								  UINT *height)
{
	return NULL;
}
//
//	gets image dimensions
//	returns -1,-1 on bad read
//

void GIFFile::GIFGetDimensions(CString path, UINT *width, UINT *height)
{
	*width=(UINT)-1;*height=(UINT)-1;
	return;
}