1 ///////////////////////////////////////////////////////////////////////////
2 //
3 // Copyright (c) 2004, Industrial Light & Magic, a division of Lucas
4 // Digital Ltd. LLC
5 //
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
10 // met:
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12 // notice, this list of conditions and the following disclaimer.
13 // * Redistributions in binary form must reproduce the above
14 // copyright notice, this list of conditions and the following disclaimer
15 // in the documentation and/or other materials provided with the
16 // distribution.
17 // * Neither the name of Industrial Light & Magic nor the names of
18 // its contributors may be used to endorse or promote products derived
19 // from this software without specific prior written permission.
20 //
21 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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30 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 //
33 ///////////////////////////////////////////////////////////////////////////
34
35
36 //-----------------------------------------------------------------------------
37 //
38 // class PreviewImageAttribute
39 //
40 //-----------------------------------------------------------------------------
41
42 #include <ImfPreviewImageAttribute.h>
43
44
45 namespace Imf {
46
47
48 template <>
49 const char *
staticTypeName()50 PreviewImageAttribute::staticTypeName ()
51 {
52 return "preview";
53 }
54
55
56 template <>
57 void
writeValueTo(OStream & os,int) const58 PreviewImageAttribute::writeValueTo (OStream &os, int) const
59 {
60 Xdr::write <StreamIO> (os, _value.width());
61 Xdr::write <StreamIO> (os, _value.height());
62
63 int numPixels = _value.width() * _value.height();
64 const PreviewRgba *pixels = _value.pixels();
65
66 for (int i = 0; i < numPixels; ++i)
67 {
68 Xdr::write <StreamIO> (os, pixels[i].r);
69 Xdr::write <StreamIO> (os, pixels[i].g);
70 Xdr::write <StreamIO> (os, pixels[i].b);
71 Xdr::write <StreamIO> (os, pixels[i].a);
72 }
73 }
74
75
76 template <>
77 void
readValueFrom(IStream & is,int,int)78 PreviewImageAttribute::readValueFrom (IStream &is, int, int)
79 {
80 int width, height;
81
82 Xdr::read <StreamIO> (is, width);
83 Xdr::read <StreamIO> (is, height);
84
85 PreviewImage p (width, height);
86
87 int numPixels = p.width() * p.height();
88 PreviewRgba *pixels = p.pixels();
89
90 for (int i = 0; i < numPixels; ++i)
91 {
92 Xdr::read <StreamIO> (is, pixels[i].r);
93 Xdr::read <StreamIO> (is, pixels[i].g);
94 Xdr::read <StreamIO> (is, pixels[i].b);
95 Xdr::read <StreamIO> (is, pixels[i].a);
96 }
97
98 _value = p;
99 }
100
101
102 } // namespace Imf
103