XnView Software

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GFL_BITMAP bmp = new GFL_BITMAP();
GFL_ERROR err = new GFL_ERROR();
GFL_FILE_INFORMATION info = new GFL_FILE_INFORMATION();
GFL_LOAD_PARAMS ldp;
gflGetDefaultLoadParams(out ldp);
string my_file = "\\images\\bmp.bmp";

err = gflLoadBitmap(my_file, out bmp, ref ldp, ref info);
Console.WriteLine("load: " + err + " size: " + info.FileSize);
gflFreeBitmapData(ref bmp); //here is where StackOverflow occurs
gflFreeFileInformation(ref info);
gflFreeBitmap(ref bmp);

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#include "stdafx.h"
#include "stdio.h"
#include <iostream>
#include <libgfl>
#include <libgfle>
#include <windows>
#include <strsafe>

#define MAX_THREADS 3
#define NB_LOOPS 2

using namespace std;

typedef struct _MyData{
	int val1;
} MYDATA, *PMYDATA;

DWORD WINAPI LoadImage(LPVOID lpParam)
{
	for(int i = 0 ; i LOWER_THAN NB_LOOPS; i++) //change this line, the phpbb did not like it :(

{

GFL_ERROR err;
			GFL_FILE_INFORMATION info;
			GFL_LOAD_PARAMS loadparams;
			GFL_BITMAP* bitmap;
			GFL_SAVE_PARAMS svp;
			const char* my_file = "images\\bmp.bmp";

			gflGetDefaultLoadParams(&loadparams);

			err = gflLoadBitmap(my_file, &bitmap, &loadparams, &info);
			
			PMYDATA pData = (PMYDATA) lpParam;
			const char* stringerror = gflGetErrorString(err);
			char t[256];
			sprintf(t,  "thread %d; error: %s; loaded: %d\n" , pData->val1 , stringerror , info.FileSize);

// Here I printed the t string, but phpbb does really not like the LOWER_THAN / GREATER_THAN symbols :(

				gflGetDefaultSaveParams(&svp);
			(&svp)->FormatIndex = gflGetFormatIndexByName("bmp");
			sprintf(t, "saves\\bmp%d-%d.bmp", i, pData->val1);
			err = gflSaveBitmap(t, bitmap, &svp);

		
			//gflFreeBitmapData(bitmap);
			gflFreeFileInformation(&info);
			gflFreeBitmap(bitmap);
		

	}
	return 0;
}

int _tmain(int argc, _TCHAR* argv[])
{

	PMYDATA pData;
	DWORD dwThreadId[MAX_THREADS];
	HANDLE hThread[MAX_THREADS];
	int i;

	gflLibraryInit();

	for(i = 0; i LOWER_THAN MAX_THREADS; i++) // Change this line too ...
	{
		pData = (PMYDATA) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(MYDATA));
		if(pData == NULL)
			ExitProcess(2);

		pData->val1 = i;
		hThread[i] = CreateThread(
			NULL,
			0,
			LoadImage,
			pData,
			0,
			&dwThreadId[i]);

		if(hThread[i] == NULL)
		{
			ExitProcess(i);
		}
	}
	WaitForMultipleObjects(MAX_THREADS, hThread, TRUE, INFINITE);

	for(int i = 0; i < MAX_THREADS; i++)
	{
		CloseHandle(hThread[i]);
	}



	char c = getchar();
	return 0;
}

Code: Select all

thread 0; error: No error; loaded: 983094
thread 1; error: No error; loaded: 11796052
thread 2; error: No error; loaded: 12844628
thread 0; error: No error; loaded: 983094
thread 1; error: No error; loaded: 983094
thread 2; error: No error; loaded: 983094