1 # edge-detect.tcl --
2 #
3 # FIXME: This file needs a description here.
4 #
5 # Copyright (c) 1998-2002 The Regents of the University of California.
6 # All rights reserved.
7 #
8 # Redistribution and use in source and binary forms, with or without
9 # modification, are permitted provided that the following conditions are met:
10 #
11 # A. Redistributions of source code must retain the above copyright notice,
12 # this list of conditions and the following disclaimer.
13 # B. Redistributions in binary form must reproduce the above copyright notice,
14 # this list of conditions and the following disclaimer in the documentation
15 # and/or other materials provided with the distribution.
16 # C. Neither the names of the copyright holders nor the names of its
17 # contributors may be used to endorse or promote products derived from this
18 # software without specific prior written permission.
19 #
20 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
21 # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 # ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR
24 # ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
26 # SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
27 # CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
28 # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30
31 import DaliSubprogram
32
33 Class EdgeDetectSubprogram -superclass DaliSubprogram
34
35 EdgeDetectSubprogram instproc init {args} {
36 eval $self next $args;
37
38 # Set up inputs
39
40 $self instvar input_id_list_;
41 $self instvar input_info_;
42
43 lappend input_id_list_ i1
44
45 set input_info_(i1,spec) "";
46 set input_info_(i1,trigger) 0;
47 set input_info_(i1,buffertype) Uncompressed;
48 set input_info_(i1,buffername) [new VidRep/Uncompressed];
49 set input_info_(i1,decoder) "";
50
51 # Set up outputs
52
53 $self instvar output_id_list_;
54 $self instvar output_info_;
55
56 lappend output_id_list_ o1;
57
58 set output_info_(o1,spec) "";
59 set output_info_(o1,buffertype) Uncompressed;
60 set output_info_(o1,buffername) [new VidRep/Uncompressed];
61 set output_info_(o1,encoder) "";
62 set output_info_(o1,format) JPEG;
63 set output_info_(o1,vagent) "";
64
65 # Set up parameters
66
67 $self instvar parameter_id_list_;
68 $self instvar parameter_info_;
69
70 set parameter_id_list_ "";
71 }
72
73 EdgeDetectSubprogram instproc trigger {} {
74 $self instvar input_info_;
75 $self instvar output_info_;
76 $self instvar init_done_;
77 $self instvar smooth_;
78
79 set in_frame $input_info_(i1,buffername);
80 set out_frame $output_info_(o1,buffername);
81
82 if {![info exists init_done_]} {
83 if {[$in_frame set w_] == 0} {
84 return;
85 }
86 $out_frame copy_geometry $in_frame;
87 if {$output_info_(o1,format) == "JPEG"} {
88 $out_frame set h_subsample_ 2;
89 $out_frame set v_subsample_ 1;
90 } else {
91 $out_frame set h_subsample_ 2;
92 $out_frame set v_subsample_ 2;
93 }
94 $out_frame allocate;
95 set init_done_ 1;
96
97 set out_cr [$out_frame get_cr_name];
98 set out_cb [$out_frame get_cb_name];
99 byte_set $out_cr 128
100 byte_set $out_cb 128
101
102 set smooth_ [new VidRep/Uncompressed];
103 $smooth_ copy_geometry $in_frame;
104 $smooth_ allocate;
105 }
106
107 set in_l [$in_frame get_lum_name];
108 set out_l [$out_frame get_lum_name];
109 set smooth_l [$smooth_ get_lum_name];
110
111 byte_smooth $in_l $smooth_l 2;
112 byte_edge_detect_canny $smooth_l $out_l 5 10;
113
114 $out_frame set ts_ [$in_frame set ts_];
115
116 set encoder $output_info_(o1,encoder);
117
118 if {$encoder != ""} {
119 $encoder recv $out_frame;
120 }
121 $self send_completion_token;
122 }
123
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