/*****************************************************************************

 qprintf.c - module to emulate a printf with a possible quiet (disable mode.)

 A global variable GifNoisyPrint controls the printing of this routine

*****************************************************************************/

// SPDX-License-Identifier: MIT

// SPDX-FileCopyrightText: Copyright (C) Eric S. Raymond <esr@thyrsus.com>

#include <stdarg.h>

#include <stdbool.h>

#include <stdio.h>

#include "gif_lib.h"

bool GifNoisyPrint = false;

/*****************************************************************************

 Same as fprintf to stderr but with optional print.

******************************************************************************/

void GifQprintf(char *Format, ...) {

  va_list ArgPtr;

  va_start(ArgPtr, Format);

  if (GifNoisyPrint) {

    char Line[128];

    (void)vsnprintf(Line, sizeof(Line), Format, ArgPtr);

    (void)fputs(Line, stderr);

  }

  va_end(ArgPtr);

}

void PrintGifError(int ErrorCode) {

  const char *Err = GifErrorString(ErrorCode);

  if (Err != NULL) {

    fprintf(stderr, "GIF-LIB error: %s.\n", Err);

  } else {

    fprintf(stderr, "GIF-LIB undefined error %d.\n", ErrorCode);

  }

}

/* end */