// sample_for_working_with_FFS.cpp program operations: 
//
//   - gets and displays the information about FFS status (XI_PRM_FREE_FFS_SIZE, XI_PRM_USED_FFS_SIZE)
//   - write short text from variable test_text to FFS as file with name test.txt
//   - read short text from FFS from file test.txt to variable read_text
//   - gets and displays the information about FFS status (XI_PRM_FREE_FFS_SIZE, XI_PRM_USED_FFS_SIZE)

#include "stdafx.h"

#ifdef __APPLE__
#include <m3api/xiApi.h>
#include <m3api/xiExt.h>
#else
#include "xiApi.h"
#include "xiExt.h"
#endif

#define HandleResult(res,place) if (res!=XI_OK) {printf("Error after %s (%d)\n",place,res);goto finish;}

int _tmain(int argc, _TCHAR* argv[])
{
	// image buffer
	XI_IMG image;
	image.size = sizeof(XI_IMG);
	image.bp = NULL;
	image.bp_size = 0;

	// Sample for XIMEA API V2.10
	HANDLE xiH = NULL;
	XI_RETURN stat = XI_OK;

	// Get number of camera devices
	DWORD dwNumberOfDevices = 0;
	stat = xiGetNumberDevices(&dwNumberOfDevices);
	HandleResult(stat,"xiGetNumberDevices (no camera found)");
	
	if (!dwNumberOfDevices)
	{
		printf("No camera found\n");
		goto finish;
	}
	
	// Retrieving a handle to the camera device 
	stat = xiOpenDevice(0, &xiH);
	HandleResult(stat,"xiOpenDevice");
	
	//---------------------------------------------------------------
	// get FFS info

	int num_free = 0;
	int num_used = 0;
	// get FFS info
	stat = xiGetParamInt(xiH, XI_PRM_FREE_FFS_SIZE, &num_free);
	HandleResult(stat,"xiGetParamInt (XI_PRM_FREE_FFS_SIZE)");
	stat = xiGetParamInt(xiH, XI_PRM_USED_FFS_SIZE, &num_used);
	HandleResult(stat,"xiGetParamInt (XI_PRM_USED_FFS_SIZE)\n\n");

	printf("FFS stats:\n");
	printf("Free bytes : %d \n", num_free);
	printf("Used bytes : %d \n", num_used);


	//---------------------------------------------------------------
	// write file to FFS

	char test_file[MAX_PATH]="test.txt";
	char test_text[MAX_PATH]="XIMEA was created by the group of industry leading Imaging and Vision veterans originating from DELARO and SOFTHARD companies.";
	
	stat = xiSetParamString(xiH, XI_PRM_FFS_FILE_NAME, test_file, MAX_PATH);
	HandleResult(stat,"xiSetParamString (XI_PRM_FFS_FILE_NAME)");
	stat = xiSetParamString(xiH, XI_PRM_WRITE_FILE_FFS, test_text, MAX_PATH);
	HandleResult(stat,"xiSetParamString (XI_PRM_WRITE_FILE_FFS)");
	
	
	//---------------------------------------------------------------
	// read data from FFS

	char read_text[MAX_PATH]="";	
	stat = xiGetParamString(xiH, XI_PRM_READ_FILE_FFS, read_text, MAX_PATH);
	HandleResult(stat,"xiSetParamString (XI_PRM_READ_FILE_FFS)");

	printf("Text read from FFS:\n%s\n\n", read_text);

	//---------------------------------------------------------------
	// get FFS info

	stat = xiGetParamInt(xiH, XI_PRM_FREE_FFS_SIZE, &num_free);
	HandleResult(stat,"xiGetParamInt (XI_PRM_FREE_FFS_SIZE)");
	stat = xiGetParamInt(xiH, XI_PRM_USED_FFS_SIZE, &num_used);
	HandleResult(stat,"xiGetParamInt (XI_PRM_USED_FFS_SIZE)\n\n");

	printf("FFS stats:\n");
	printf("Free bytes : %d \n", num_free);
	printf("Used bytes : %d \n", num_used);

finish:
	// Close device
	if (xiH)
		xiCloseDevice(xiH);
	printf("Done\n");
	getchar();
	return 0;
}