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2 | toby | 1 | /* |
2 | This file is part of "Filter Foundry", a filter plugin for Adobe Photoshop |
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3 | Copyright (C) 2003-5 Toby Thain, toby@telegraphics.com.au |
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4 | |||
5 | This program is free software; you can redistribute it and/or modify |
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6 | it under the terms of the GNU General Public License as published by |
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7 | the Free Software Foundation; either version 2 of the License, or |
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8 | (at your option) any later version. |
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9 | |||
10 | This program is distributed in the hope that it will be useful, |
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11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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13 | GNU General Public License for more details. |
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14 | |||
15 | You should have received a copy of the GNU General Public License |
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16 | along with this program; if not, write to the Free Software |
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17 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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18 | */ |
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19 | |||
20 | #include "ff.h" |
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21 | |||
22 | #include "file_compat.h" |
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23 | |||
24 | enum{ |
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25 | BUFSIZE = (4L<<10), |
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26 | MAXLINE = 0x200, |
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27 | }; |
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28 | |||
29 | Boolean readparams(Handle h,Boolean alerts,char **reason){ |
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30 | Boolean res = false; |
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31 | char linebuf[MAXLINE+1],curexpr[MAXEXPR+1],*p,*dataend,*q; |
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32 | int c,linecnt,lineptr,exprcnt; |
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33 | |||
15 | toby | 34 | if(!h){ |
35 | *reason = "readparams: Null parameter handle."; |
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36 | return false; |
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37 | } |
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38 | |||
2 | toby | 39 | p = PILOCKHANDLE(h,false); |
40 | dataend = p + PIGETHANDLESIZE(h); |
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41 | //sprintf(s,"readparams: Input data size = %d",dataend-p); dbg(s); |
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42 | |||
43 | q = curexpr; |
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44 | linecnt = exprcnt = lineptr = 0; |
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45 | |||
46 | *reason = "File was too short."; |
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47 | while( p < dataend ){ |
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48 | |||
49 | c = *p++; |
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50 | |||
51 | if(c==CR || c==LF){ /* detected end of line */ |
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52 | |||
53 | /* look ahead to see if we need to skip a line feed (DOS EOL convention) */ |
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54 | if(c == CR && *p == LF && p < dataend) |
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55 | ++p; |
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56 | |||
57 | linebuf[lineptr] = 0; /* add terminating NUL to line buffer */ |
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58 | |||
59 | //sprintf(s,"got line %d = \"%s\"",linecnt,linebuf); dbg(s); |
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60 | |||
61 | /* process complete line */ |
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62 | if(linecnt==0){ |
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63 | if(strcmp(linebuf,"%RGB-1.0")){ |
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64 | if(alerts) |
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65 | *reason = ("This doesn't look like a Filter Factory file (first line is not \"%RGB-1.0\")."); |
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66 | break; |
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67 | } |
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68 | }else if(linecnt<=8){ |
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69 | slider[linecnt-1] = atoi(linebuf); |
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70 | }else{ |
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71 | if(lineptr){ |
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72 | /* it's not an empty line; append it to current expr string */ |
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73 | if( q+lineptr > curexpr+MAXEXPR ){ |
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74 | *reason = ("Found an expression longer than 1024 characters."); |
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75 | break; |
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76 | } |
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77 | q = cat(q,linebuf); |
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78 | }else{ |
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79 | /* it's an empty line: we've completed the expr string */ |
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80 | if(expr[exprcnt]) |
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81 | free(expr[exprcnt]); |
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82 | *q = 0; |
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83 | if(!(expr[exprcnt] = my_strdup(curexpr))){ |
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84 | *reason = ("Could not get memory for expression."); |
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85 | break; |
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86 | } |
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87 | |||
88 | if(++exprcnt == 4){ |
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89 | res = true; |
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90 | break; /* got everything we want */ |
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91 | } |
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92 | |||
93 | q = curexpr; /* empty current expr, ready for next one */ |
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94 | } |
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95 | } |
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96 | |||
97 | ++linecnt; |
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98 | lineptr = 0; |
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99 | }else{ |
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100 | /* store character */ |
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101 | if(c=='\\'){ /* escape sequence */ |
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102 | if(p < dataend){ |
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103 | c = *p++; |
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104 | switch(c){ |
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105 | case 'r': c = CR; |
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106 | case '\\': break; |
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107 | default: |
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108 | if(alerts) alertuser("Warning:","Unknown escape sequence in input."); |
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109 | } |
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110 | }//else if(alerts) alertuser("truncated escape sequence ends input"); |
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111 | } |
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112 | |||
113 | if(lineptr < MAXLINE) |
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114 | linebuf[lineptr++] = c; |
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115 | } |
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116 | } |
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117 | |||
118 | PIUNLOCKHANDLE(h); |
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119 | // if(c == EOF) alertuser("end of file"); |
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120 | |||
121 | return res; |
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122 | } |
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123 | |||
124 | Boolean readPARM(Ptr p,PARM_T *pparm,char **reasonstr){ |
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125 | Boolean res = false; |
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126 | int i; |
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127 | |||
128 | memcpy(pparm,p,sizeof(PARM_T)); |
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129 | #ifdef WIN_ENV |
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130 | /* Windows PARM resource stores C strings - convert to Pascal strings */ |
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131 | myc2pstr((char*)pparm->category); |
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132 | myc2pstr((char*)pparm->title); |
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133 | myc2pstr((char*)pparm->copyright); |
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134 | myc2pstr((char*)pparm->author); |
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135 | for(i=0;i<4;++i) |
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136 | myc2pstr((char*)pparm->map[i]); |
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137 | for(i=0;i<8;++i) |
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138 | myc2pstr((char*)pparm->ctl[i]); |
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139 | #endif |
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140 | |||
141 | for(i=0;i<4;++i){ |
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142 | if(expr[i]) free(expr[i]); |
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143 | expr[i] = my_strdup(pparm->formula[i]); |
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144 | //dbg(expr[i]); |
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145 | } |
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146 | |||
147 | for(i=0;i<8;++i) |
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148 | slider[i] = pparm->val[i]; |
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149 | |||
150 | res = true; |
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151 | //dbg("read pparm ok"); |
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152 | |||
153 | return res; |
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154 | } |
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155 | |||
156 | Handle readfileintohandle(FILEREF r){ |
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157 | long n; |
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158 | Handle h; |
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159 | Ptr p; |
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160 | |||
161 | if( !GetEOF(r,&n) && (h = PINEWHANDLE(n)) ){ |
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162 | p = PILOCKHANDLE(h,false); |
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163 | if(!FSRead(r,&n,p)){ |
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164 | PIUNLOCKHANDLE(h); |
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165 | return h; |
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166 | } |
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167 | PIDISPOSEHANDLE(h); |
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168 | } |
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169 | return NULL; |
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170 | } |
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171 | |||
172 | Boolean readfile(StandardFileReply *sfr,char **reason){ |
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173 | FILEREF r; |
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174 | Handle h; |
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175 | Boolean res = false; |
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176 | |||
177 | if(!FSpOpenDF(&sfr->sfFile,fsRdPerm,&r)){ |
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178 | if(h = readfileintohandle(r)){ |
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179 | if(res = readparams(h,true,reason)) |
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180 | gdata->standalone = false; // so metadata fields will default, if user chooses Make... |
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181 | PIDISPOSEHANDLE(h); |
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182 | } |
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183 | FSClose(r); |
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184 | }else |
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185 | *reason = ("Could not open the file."); |
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186 | |||
187 | return res; |
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188 | } |