Tk Library Source Code

Attachment Details
Login
Overview

Artifact ID: d7aeae88f6ac44a0b31e26e80aaacc898dbc8391
Ticket: 1161942fffffffffffffffffffffffffffffffff
Date: 2005-03-12 19:46:24
User: nobody
Artifact Attached: fdd04111f92c89d100e0d0593ae83193ab03067f
Filename:exif-patch.txt
Description:EXIF-2.2 tags for exif.tcl
Content:
     1
     2
     3
     4
     5
     6
     7
     8
     9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    25
    26
    27
    28
    29
    30
    31
    32
    33
    34
    35
    36
    37
    38
    39
    40
    41
    42
    43
    44
    45
    46
    47
    48
    49
    50
    51
    52
    53
    54
    55
    56
    57
    58
    59
    60
    61
    62
    63
    64
    65
    66
    67
    68
    69
    70
    71
    72
    73
    74
    75
    76
    77
    78
    79
    80
    81
    82
    83
    84
    85
    86
    87
    88
    89
    90
    91
    92
    93
    94
    95
    96
    97
    98
    99
   100
   101
   102
   103
   104
   105
   106
   107
   108
   109
   110
   111
   112
   113
   114
   115
   116
   117
   118
   119
   120
   121
   122
   123
   124
   125
   126
   127
   128
   129
   130
   131
   132
   133
   134
   135
   136
   137
   138
   139
   140
   141
   142
   143
   144
   145
   146
   147
   148
   149
   150
   151
   152
   153
   154
   155
   156
   157
   158
   159
   160
   161
   162
   163
   164
   165
   166
   167
   168
   169
   170
   171
   172
   173
   174
   175
   176
   177
   178
   179
   180
   181
   182
   183
   184
   185
   186
   187
   188
   189
   190
   191
   192
   193
   194
   195
   196
   197
   198
   199
   200
   201
   202
   203
   204
   205
   206
   207
   208
   209
   210
   211
   212
   213
   214
   215
   216
   217
   218
   219
   220
   221
   222
   223
   224
   225
   226
   227
   228
   229
   230
   231
   232
   233
   234
   235
   236
   237
   238
   239
   240
   241
   242
   243
   244
   245
   246
   247
   248
   249
   250
   251
   252
   253
   254
   255
   256
   257
   258
   259
   260
   261
48c48
< package provide exif 1.1.2 ; # first release
---
> package provide exif 1.2 ; # first release
53a54
>     variable cameraMake ; # used internally to understand options
134a136
>     variable cameraMake
168a171
>             set cameraMake $value
220a224
>     variable cameraMake
237c241,243
<             array set result [makerNote $data $offset]
---
> 	    #ML 
> 	    # Catch error if vendor specific makerNote is not available or fails
> 	    catch {array set result [makerNote_[string toupper [string range $cameraMake 0 3]] $data $offset]}
239,241c245,261
<             # Apparently, this doesn't usually work.
<             set result(UserComment) "$offset - [string range $data $offset [expr {$offset+8}]]"
<             set result(UserComment) [string trim $result(UserComment) "\0"]
---
>             #ML
> 	    # The first 8Bytes specify the type. If all zero the type is undefined.
> 	    set type [string range $data $offset [expr {$offset + 7}]]
> 	    set type [string trim $type "\0"]
> 	    debug "UserComment type: '$type'"
> 	    set result(UserComment) ""
> 	    if {$type != ""} {
> 		set value [string range $data [expr {$offset + 8}] [expr {$offset + 8 + $components - 1}]]
> 		set value [string trim $value]
> 		# normal string trim does not seem to work right here
> 		for {set i 0} {$i < [string length $value]} {incr i 1} {
> 		    set a [string index $value $i]
> 		    if {![string is print $a]} { break }
> 		    append result(UserComment) $a
> 		}
> 	    }
>             set result(UserComment) [string trim $result(UserComment)]
252c272
<             set value [readIFDEntry $data $format $components $offset]
---
> 	    set value [readIFDEntry $data $format $components $offset]
256c276
<                     set result(ExposureTime) "$value seconds"
---
>                     set result(ExposureTime) "$value s"
258c278
<                     set result(ExposureTime) "1/[expr {1.0/$value}] seconds"
---
>                     set result(ExposureTime) "1/[format %.0f [expr {1.0/$value}]] s"
261a282,295
>             } elseif {$tag == 0x8822} { 
> 		#ML
>  		set result(ExposureProgram) [switch $value {
>                     0 {format "not defined"}
>                     1 {format "manual"}
>                     2 {format "normal program"}
>                     3 {format "aperture priority"}
>                     4 {format "shutter priority"}
>                     5 {format "creative program"}
>                     6 {format "action program"}
>                     7 {format "portrait mode"}
>                     8 {format "landscape mode"}
>                     default {format unknown}
>                 }]
309a344,368
>             } elseif {$tag == 0x9208} { 
> 		#ML
>  		set result(LightSource) [switch $value {
>                     1 {format "daylight"}
>                     2 {format "fluorescent"}
>                     3 {format "tungsten"}
>                     4 {format "flash"}
>                     9 {format "fine weather"}
>                     10 {format "cloudy weather"}
>                     11 {format "shade"}
>                     12 {format "daylight fluorescent"}
>                     13 {format "day white fluorescent"}
>                     14 {format "cool white fluorescent"}
>                     15 {format "white fluorescent"}
>                     17 {format "standard light A"}
>                     18 {format "standard light B"}
>                     19 {format "standard light C"}
>                     20 {format "D55"}
>                     21 {format "D65"}
>                     22 {format "D75"}
>                     23 {format "D50"}
>                     24 {format "ISO studio tungsten"}
>                     255 {format "other light source"}
>                     default {format unknown}
>                 }]
335a395,397
>             } elseif {$tag == 0xA215} { 
> 		#ML
> 		set result(ExposureIndex) $value
337,338c399,412
<                 # 2 = 1 chip color area sensor
<                 set result(SensingMethod) $value
---
>                 #ML
>                 set result(SensingMethod) [switch $value {
>                     1 {format "not defined"}
>                     2 {format "one-chip color area sensor"}
>                     3 {format "two-chip color area sensor"}
>                     4 {format "three-chip color area sensor"}
>                     5 {format "color sequential area sensor"}
>                     7 {format "trilinear sensor"}
>                     7 {format "color sequential linear sensor"}
>                     default {format unknown}
>                 }]
>             } elseif {$tag == 0xA301} { 
> 		#ML
> 		set result(SceneType) "directly photographed image"
369a444,475
>             } elseif {$tag == 0xA408} { 
> 		#ML
>  		set result(Contrast) [switch $value {
>                     0 {format "normal"}
>                     1 {format "soft"}
>                     2 {format "hard"}
>                     default {format unknown}
>                 }]
>             } elseif {$tag == 0xA409} { 
> 		#ML
>  		set result(Saturation) [switch $value {
>                     0 {format "normal"}
>                     1 {format "low saturation"}
>                     2 {format "high saturation"}
>                     default {format unknown}
>                 }]
>             } elseif {$tag == 0xA40A} { 
> 		#ML
>  		set result(Sharpness) [switch $value {
>                     0 {format "normal"}
>                     1 {format "soft"}
>                     2 {format "hard"}
>                     default {format unknown}
>                 }]
>             } elseif {$tag == 0xA40C} { 
> 		#ML
>  		set result(SubjectDistanceRange) [switch $value {
>                     1 {format "macro"}
>                     2 {format "close view"}
>                     3 {format "distant view"}
>                     default {format unknown}
>                 }]
395c501,503
<                 error "Unrecognized EXIF Tag: $tag (0x[string toupper [format %x $tag]])"
---
> 		#ML
>                 debug "Unrecognized EXIF Tag: $tag (0x[format %X $tag])"
> 		lappend result(UnrcognizedTags) "0x[format %X $tag]"
401a510,574
> #ML 
> # makerNote for OLYMPUS cameras
> proc ::exif::makerNote_OLYM {data curoffset} {
>     variable cameraModel
>     debug "MakerNote_OLYM: offset=$curoffset"
>     array set result {}
> 
>     set value [readIFDEntry $data 2 5 $curoffset]
>     if {$value == "OLYMP"} {
>         incr curoffset 8
>     }
>     set numEntries [readShort $data $curoffset]
>     debug "Number of directory entries: $numEntries"
>     incr curoffset 2
>     for {set i 0} {$i < $numEntries} {incr i} {
>         set head [expr {$curoffset + 12 * $i}]
>         set entry [string range $data $head [expr {$head+11}]]
>         set tag [readShort $entry 0]
>         set format [readShort $entry 2]
>         set components [readLong $entry 4]
>         set offset [readLong $entry 8]
> 	set value [readIFDEntry $data $format $components $offset]
>     	debug "$i)\tTag: 0x[string toupper [format %x $tag]]"	
> 
>         if {$tag == 0x0200} {
> 	    set value [readLong $data [expr {$offset + 0}]]
>             set result(OlympusShootingMode) [switch $value {
>                 0 {format "single"}
>                 2 {format "sequential"}
>                 3 {format "panoramic"}
>                 default {format unknown}
>             }]
> 
> 	    set value [readLong $data [expr {$offset + 4}]]
> 	    set result(OlympusSequenceNumber) $value
> 
> 	    set value [readLong $data [expr {$offset + 8}]]
> 	    set result(OlympusPanoramicDirection) $value
> 
>         } elseif {$tag == 0x0201} {
>             set result(OlympusImageQuality) [switch $value {
>                 1 {format "SQ"}
>                 2 {format "HQ"}
>                 3 {format "SHQ"}
>                 default {format unknown}
>             }]
>         } elseif {$tag == 0x0202} {
>             set result(OlympusMacroMode) [switch $value {
>                 0 {format "normal"}
>                 1 {format "macro"}
>                 default {format unknown}
>             }]
>         } elseif {$tag == 0x0204} {
> 	    set result(OlympusDigitalZoomRatio) $value
>         } elseif {$tag == 0x0207} {
>             set result(OlympusFirmwareVersion) $value
>         } elseif {$tag == 0x0208} {
>             set result(OlympusPictureInfo) $value
>         } elseif {$tag == 0x0209} {
>             set result(OlympusCameraID) $value
>         }
>     }
>     return [array get result]
> }
> 
403c576
< proc ::exif::makerNote {data curoffset} {
---
> proc ::exif::makerNote_CANO {data curoffset} {
405c578
<     debug "MakerNote: offset=$curoffset"
---
>     debug "MakerNote_CANO: offset=$curoffset"
789c962
<         return $offset
---
> 	return $offset
795c968,980
<         return [expr {(1.0*$numerator)/$denominator}]
---
> 	#ML This should not happen
> 	if {$denominator == 0} {return 0}
> 	return [expr {(1.0*$numerator)/$denominator}]
>     } elseif {$format == 7} {
> 	#ML
>         # undefined 8Bit
> 	set value ""
> 	if {$components < 4} {
> 	    set value [string range $offset 0 [expr {$components - 1}]]
> 	} else {
> 	    set value [string range $data $offset [expr {$offset + $components - 1}]]
> 	}
> 	return $value
800a986,987
> 	#ML This should not happen
> 	if {$denominator == 0} {return 0}
804c991,993
<         error "Invalid IFD entry format: $x"
---
> 	#ML Return empty string is better than raising an error
>         debug "Invalid IFD entry format: $x"
> 	return ""
851c1040
<     foreach proc {analyze app1 exifSubIFD makerNote} {
---
>     foreach proc {analyze app1 exifSubIFD makerNote_CANO makerNote_OLYM} {