// for finding memory leaks in debug mode with Visual Studio #if defined _DEBUG && defined _MSC_VER#include <crtdbg.h>#endif #include <SDL2/SDL.h>#include <stdarg.h>#include <stdio.h>#include <stdint.h>#include <stdbool.h>#include <ctype.h> // toupper()#include "pt2_structs.h"#include "pt2_config.h" void showErrorMsgBox(const char *fmt, ...){	char strBuf[1024];	va_list args; 	// format the text string	va_start(args, fmt);	vsnprintf(strBuf, sizeof (strBuf), fmt, args);	va_end(args); 	// window can be NULL here, no problem...	SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Critical Error", strBuf, video.window);} void sanitizeFilenameChar(char *chr){	// some of these are legal on GNU/Linux and macOS, but whatever...	     if (*chr == '\\') *chr = ' ';	else if (*chr ==  '/') *chr = ' ';	else if (*chr ==  ':') *chr = ' ';	else if (*chr ==  '*') *chr = ' ';	else if (*chr ==  '?') *chr = ' ';	else if (*chr == '\"') *chr = ' ';	else if (*chr ==  '<') *chr = ' ';	else if (*chr ==  '>') *chr = ' ';	else if (*chr ==  '|') *chr = ' ';} bool sampleNameIsEmpty(char *name){	if (name == NULL)		return true; 	for (int32_t i = 0; i < 22; i++)	{		if (name[i] != '\0')			return false;	} 	return true;} bool moduleNameIsEmpty(char *name){	if (name == NULL)		return true; 	for (int32_t i = 0; i < 20; i++)	{		if (name[i] != '\0')			return false;	} 	return true;} void updateWindowTitle(bool modified){	char editStr[32], titleTemp[256]; 	editStr[0] = '\0';	if (editor.currMode == MODE_EDIT)		strcpy(editStr, "[EDITING] "); 	if (modified)		song->modified = true;	else		song->modified = false; 	if (song->header.name[0] != '\0')	{		if (modified)		{			if (config.modDot)				sprintf(titleTemp, "ProTracker 2 clone v%s %s- \"mod.%s\" (unsaved)",					PROG_VER_STR, editStr, song->header.name);			else				sprintf(titleTemp, "ProTracker 2 clone v%s %s- \"%s.mod\" (unsaved)",					PROG_VER_STR, editStr, song->header.name);		}		else		{			if (config.modDot)				sprintf(titleTemp, "ProTracker 2 clone v%s %s- \"mod.%s\"",					PROG_VER_STR, editStr, song->header.name);			else				sprintf(titleTemp, "ProTracker 2 clone v%s %s- \"%s.mod\"",					PROG_VER_STR, editStr, song->header.name);		}	}	else	{		if (modified)		{			if (config.modDot)				sprintf(titleTemp, "ProTracker 2 clone v%s %s- \"mod.untitled\" (unsaved)",					PROG_VER_STR, editStr);			else				sprintf(titleTemp, "ProTracker 2 clone v%s %s- \"untitled.mod\" (unsaved)",					PROG_VER_STR, editStr);		}		else		{			if (config.modDot)				sprintf(titleTemp, "ProTracker 2 clone v%s %s- \"mod.untitled\"",					PROG_VER_STR, editStr);			else				sprintf(titleTemp, "ProTracker 2 clone v%s %s- \"untitled.mod\"",					PROG_VER_STR, editStr);		}	} 	 SDL_SetWindowTitle(video.window, titleTemp);}