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1 /* Synched up with: Not in FSF. */
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2
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3 /*****************************************************************************
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4 * "Gif-Lib" - Yet another gif library. *
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5 * *
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6 * Written by: Gershon Elber IBM PC Ver 0.1, Jun. 1989 *
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7 ******************************************************************************
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8 * Handle error reporting for the GIF library. *
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9 ******************************************************************************
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10 * History: *
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11 * 17 Jun 89 - Version 1.0 by Gershon Elber. *
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12 *****************************************************************************/
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13
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14 #ifdef emacs
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15 #include <config.h>
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16 #endif
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17
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18 #include <stdio.h>
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19 #include "gif_lib.h"
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20
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21 #define PROGRAM_NAME "GIF_LIBRARY"
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22
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23 int _GifError;
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24
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25 #ifndef emacs
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26 #ifdef SYSV
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27 static char *VersionStr =
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28 "Gif library module,\t\tGershon Elber\n\
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29 (C) Copyright 1989 Gershon Elber, Non commercial use only.\n";
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30 #else
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31 static char *VersionStr =
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32 PROGRAM_NAME
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33 " IBMPC "
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34 GIF_LIB_VERSION
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35 " Gershon Elber, "
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36 __DATE__ ", " __TIME__ "\n"
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37 "(C) Copyright 1989 Gershon Elber, Non commercial use only.\n";
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38 #endif /* SYSV */
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39 #endif /* !emacs */
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40
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41 /*****************************************************************************
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42 * Return the last GIF error (0 if none) and reset the error. *
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43 *****************************************************************************/
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44 int GifLastError(void)
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45 {
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46 int i = _GifError;
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47
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48 _GifError = 0;
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49
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50 return i;
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51 }
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52
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53 /*****************************************************************************
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54 * Print the last GIF error to stderr. *
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55 *****************************************************************************/
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56 #ifdef emacs
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57 CONST char *EmacsPrintGifError(void)
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58 #else
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59 void PrintGifError(void)
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60 #endif
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61 {
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62 CONST char *Err;
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63
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64 switch(_GifError) {
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65 case E_GIF_ERR_OPEN_FAILED:
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66 Err = "Failed to open given file";
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67 break;
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68 case E_GIF_ERR_WRITE_FAILED:
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69 Err = "Failed to Write to given file";
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70 break;
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71 case E_GIF_ERR_HAS_SCRN_DSCR:
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72 Err = "Screen Descriptor already been set";
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73 break;
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74 case E_GIF_ERR_HAS_IMAG_DSCR:
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75 Err = "Image Descriptor is still active";
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76 break;
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77 case E_GIF_ERR_NO_COLOR_MAP:
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78 Err = "Neither Global Nor Local color map";
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79 break;
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80 case E_GIF_ERR_DATA_TOO_BIG:
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81 Err = "#Pixels bigger than Width * Height";
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82 break;
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83 case E_GIF_ERR_NOT_ENOUGH_MEM:
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84 Err = "Fail to allocate required memory";
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85 break;
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86 case E_GIF_ERR_DISK_IS_FULL:
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87 Err = "Write failed (disk full?)";
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88 break;
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89 case E_GIF_ERR_CLOSE_FAILED:
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90 Err = "Failed to close given file";
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91 break;
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92 case E_GIF_ERR_NOT_WRITEABLE:
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93 Err = "Given file was not opened for write";
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94 break;
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95 case D_GIF_ERR_OPEN_FAILED:
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96 Err = "Failed to open given file";
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97 break;
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98 case D_GIF_ERR_READ_FAILED:
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99 Err = "Failed to Read from given file";
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100 break;
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101 case D_GIF_ERR_NOT_GIF_FILE:
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102 Err = "Given file is NOT GIF file";
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103 break;
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104 case D_GIF_ERR_NO_SCRN_DSCR:
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105 Err = "No Screen Descriptor detected";
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106 break;
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107 case D_GIF_ERR_NO_IMAG_DSCR:
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108 Err = "No Image Descriptor detected";
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109 break;
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110 case D_GIF_ERR_NO_COLOR_MAP:
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111 Err = "Neither Global Nor Local color map";
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112 break;
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113 case D_GIF_ERR_WRONG_RECORD:
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114 Err = "Wrong record type detected";
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115 break;
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116 case D_GIF_ERR_DATA_TOO_BIG:
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117 Err = "#Pixels bigger than Width * Height";
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118 break;
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119 case D_GIF_ERR_NOT_ENOUGH_MEM:
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120 Err = "Fail to allocate required memory";
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121 break;
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122 case D_GIF_ERR_CLOSE_FAILED:
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123 Err = "Failed to close given file";
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124 break;
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125 case D_GIF_ERR_NOT_READABLE:
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126 Err = "Given file was not opened for read";
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127 break;
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128 case D_GIF_ERR_IMAGE_DEFECT:
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129 Err = "Image is defective, decoding aborted";
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130 break;
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131 case D_GIF_ERR_EOF_TOO_SOON:
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132 Err = "Image EOF detected, before image complete";
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133 break;
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134 default:
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135 Err = NULL;
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136 break;
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137 }
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138 #ifdef emacs
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139 if (Err != NULL)
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140 return Err;
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141 else
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142 return "Unknown error";
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143 #else
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144 if (Err != NULL)
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145 fprintf(stderr, "\nGIF-LIB error: %s.\n", Err);
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146 else
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147 fprintf(stderr, "\nGIF-LIB undefined error %d.\n", _GifError);
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148 #endif
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149 }
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150
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151 void init_gif_err (void);
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152 void
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153 init_gif_err (void)
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154 {
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155 _GifError = 0;
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156 }
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