1 // dimage is actually stripped out part of dlib - just to support reading PNG and JPEG
2 module dimage.image;
3
4 //import dimage.color;
5
6 class ImageLoadException : Exception
7 {
8 this(string msg, string file = __FILE__, size_t line = __LINE__, Throwable next = null)
9 {
10 super(msg, file, line, next);
11 }
12 }
13
14
15 class SuperImageFactory {
16 SuperImage createImage(int width, int height, int components, int bitsPerComponent) {
17 return new SuperImage(width, height, components, bitsPerComponent);
18 }
19 }
20
21 class SuperImage {
22 immutable int width;
23 immutable int height;
24 uint[] data;
25 immutable int channels;
26 immutable int bitDepth;
27 immutable int length;
28
29 void opIndexAssign(uint color, int x, int y) {
30 data[x + y * width] = color;
31 }
32
33 uint opIndex(int x, int y) {
34 return data[x + y * width];
35 }
36
37 this(int w, int h, int chan, int depth) {
38 width = w;
39 height = h;
40 channels = chan;
41 bitDepth = depth;
42 length = width * height;
43 data.length = width * height;
44 }
45 void free() {
46 data = null;
47 }
48 }
49
50 __gshared SuperImageFactory defaultImageFactory = new SuperImageFactory();
51
52
53 /*
54 * Byte operations
55 */
56 version (BigEndian)
57 {
58 uint bigEndian(uint value) nothrow
59 {
60 return value;
61 }
62
63 uint networkByteOrder(uint value) nothrow
64 {
65 return value;
66 }
67 }
68
69 version (LittleEndian)
70 {
71 uint bigEndian(uint value) nothrow
72 {
73 return value << 24
74 | (value & 0x0000FF00) << 8
75 | (value & 0x00FF0000) >> 8
76 | value >> 24;
77 }
78
79 uint networkByteOrder(uint value) nothrow
80 {
81 return bigEndian(value);
82 }
83 }