liberty.image.format.png source code

1 /**
2  * Copyright:       Copyright (C) 2018 Gabriel Gheorghe, All Rights Reserved
3  * Authors:         $(Gabriel Gheorghe)
4  * License:         $(LINK2 https://www.gnu.org/licenses/gpl-3.0.txt, GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007)
5  * Source:          $(LINK2 https://github.com/GabyForceQ/LibertyEngine/blob/master/source/liberty/image/format/png.d)
6  * Documentation:
7  * Coverage:
8 **/
9 module liberty.image.format.png;
10 
11 import liberty.image.impl;
12 
13 /**
14  *
15 **/
16 struct PNGChunk {
17   /**
18    *
19   **/
20   uint size;
21 
22   /**
23    *
24   **/
25   ubyte[4] type;
26 
27   /**
28    *
29   **/
30   ubyte[] data;
31 
32   /**
33    *
34   **/
35   ubyte[] crc32;
36 
37   /**
38    *
39   **/
40   void clear() {
41     if (data.ptr !is null)
42       data.destroy();
43 
44     if (crc32.ptr !is null)
45       crc32.destroy();
46   }
47 }
48 
49 /**
50  *
51 **/
52 struct PNGHeader {
53   union {
54     struct {
55       /**
56        *
57       **/
58       uint width;
59 
60       /**
61        *
62       **/
63       uint height;
64 
65       /**
66        *
67       **/
68       uint bitDepth;
69 
70       /**
71        *
72       **/
73       uint colorType;
74 
75       /**
76        *
77       **/
78       ubyte compressionMethod;
79 
80       /**
81        *
82       **/
83       ubyte filterMethod;
84 
85       /**
86        *
87       **/
88       ubyte interlaceMethod;
89     }
90 
91     /**
92      *
93     **/
94     ubyte[13] bytes;
95   }
96 }
97 
98 /**
99  *
100 **/
101 final class PNGImage : Image {
102   private {
103     PNGHeader header;
104   }
105 
106   /**
107    *
108   **/
109   this() {}
110 }