www.pudn.com > giflib12.zip > GIF_ERR.C

/***************************************************************************** 
*   "Gif-Lib" - Yet another gif library.				     * 
*									     * 
* Written by:  Gershon Elber			IBM PC Ver 0.1,	Jun. 1989    * 
****************************************************************************** 
* Handle error reporting for the GIF library.				     * 
****************************************************************************** 
* History:								     * 
* 17 Jun 89 - Version 1.0 by Gershon Elber.				     * 
*****************************************************************************/ 
 
#include  
#include "gif_lib.h" 
 
#define PROGRAM_NAME	"GIF_LIBRARY" 
 
int _GifError = 0; 
 
#ifdef SYSV 
static char *VersionStr = 
        "Gif library module,\t\tGershon Elber\n\ 
	(C) Copyright 1989 Gershon Elber, Non commercial use only.\n"; 
#else 
static char *VersionStr = 
	PROGRAM_NAME 
	"	IBMPC " 
	GIF_LIB_VERSION 
	"	Gershon Elber,	" 
	__DATE__ ",   " __TIME__ "\n" 
	"(C) Copyright 1989 Gershon Elber, Non commercial use only.\n"; 
#endif /* SYSV */ 
 
/***************************************************************************** 
* Return the last GIF error (0 if none) and reset the error.		     * 
*****************************************************************************/ 
int GifLastError(void) 
{ 
    int i = _GifError; 
 
    _GifError = 0; 
 
    return i; 
} 
 
/***************************************************************************** 
* Print the last GIF error to stderr.					     * 
*****************************************************************************/ 
void PrintGifError(void) 
{ 
    char *Err; 
 
    switch(_GifError) { 
	case E_GIF_ERR_OPEN_FAILED: 
	    Err = "Failed to open given file"; 
	    break; 
	case E_GIF_ERR_WRITE_FAILED: 
	    Err = "Failed to Write to given file"; 
	    break; 
	case E_GIF_ERR_HAS_SCRN_DSCR: 
	    Err = "Screen Descriptor already been set"; 
	    break; 
	case E_GIF_ERR_HAS_IMAG_DSCR: 
	    Err = "Image Descriptor is still active"; 
	    break; 
	case E_GIF_ERR_NO_COLOR_MAP: 
	    Err = "Neither Global Nor Local color map"; 
	    break; 
	case E_GIF_ERR_DATA_TOO_BIG: 
	    Err = "#Pixels bigger than Width * Height"; 
	    break; 
	case E_GIF_ERR_NOT_ENOUGH_MEM: 
	    Err = "Fail to allocate required memory"; 
	    break; 
	case E_GIF_ERR_DISK_IS_FULL: 
	    Err = "Write failed (disk full?)"; 
	    break; 
	case E_GIF_ERR_CLOSE_FAILED: 
	    Err = "Failed to close given file"; 
	    break; 
	case E_GIF_ERR_NOT_WRITEABLE: 
	    Err = "Given file was not opened for write"; 
	    break; 
	case D_GIF_ERR_OPEN_FAILED: 
	    Err = "Failed to open given file"; 
	    break; 
	case D_GIF_ERR_READ_FAILED: 
	    Err = "Failed to Read from given file"; 
	    break; 
	case D_GIF_ERR_NOT_GIF_FILE: 
	    Err = "Given file is NOT GIF file"; 
	    break; 
	case D_GIF_ERR_NO_SCRN_DSCR: 
	    Err = "No Screen Descriptor detected"; 
	    break; 
	case D_GIF_ERR_NO_IMAG_DSCR: 
	    Err = "No Image Descriptor detected"; 
	    break; 
	case D_GIF_ERR_NO_COLOR_MAP: 
	    Err = "Neither Global Nor Local color map"; 
	    break; 
	case D_GIF_ERR_WRONG_RECORD: 
	    Err = "Wrong record type detected"; 
	    break; 
	case D_GIF_ERR_DATA_TOO_BIG: 
	    Err = "#Pixels bigger than Width * Height"; 
	    break; 
	case D_GIF_ERR_NOT_ENOUGH_MEM: 
	    Err = "Fail to allocate required memory"; 
	    break; 
	case D_GIF_ERR_CLOSE_FAILED: 
	    Err = "Failed to close given file"; 
	    break; 
	case D_GIF_ERR_NOT_READABLE: 
	    Err = "Given file was not opened for read"; 
	    break; 
	case D_GIF_ERR_IMAGE_DEFECT: 
	    Err = "Image is defective, decoding aborted"; 
	    break; 
	case D_GIF_ERR_EOF_TOO_SOON: 
	    Err = "Image EOF detected, before image complete"; 
	    break; 
	default: 
	    Err = NULL; 
	    break; 
    } 
    if (Err != NULL) 
	fprintf(stderr, "\nGIF-LIB error: %s.\n", Err); 
    else 
	fprintf(stderr, "\nGIF-LIB undefined error %d.\n", _GifError); 
}