sbylib.wrapper.freeimage.freeimage source code

1 module sbylib.wrapper.freeimage.freeimage;
2 
3 import derelict.freeimage.freeimage;
4 import derelict.util.exception;
5 import sbylib.wrapper.freeimage.constants;
6 
7 private ShouldThrow missingSymFunc(string) {
8     return ShouldThrow.No;
9 }
10 
11 package class FreeImage {
12 
13     private static FreeImage instance;
14 
15     static FreeImage opCall() {
16         if (instance is null) instance = new FreeImage();
17         return instance;
18     }
19 
20     private this() {
21         DerelictFI.missingSymbolCallback = &missingSymFunc;
22         DerelictFI.load();
23     }
24 
25     string getVersion() {
26         import std.conv : to;
27         return FreeImage_GetVersion().to!string;
28     }
29 
30     FIBITMAP* allocate(int width, int height, int bpp) {
31         return FreeImage_Allocate(width, height, bpp, uint.max, uint.max, uint.max);
32     }
33 
34     FIBITMAP* allocate(int width, int height, ImageType type) {
35         return FreeImage_AllocateT(type, width, height);
36     }
37 
38     FIBITMAP* load(ImageFormat format, string path, int option) {
39         import std..string : toStringz;
40         return FreeImage_Load(format, path.toStringz, option);
41     }
42 
43     void unload(FIBITMAP* bitmap) {
44         FreeImage_Unload(bitmap);
45     }
46 
47     RGBQUAD* getPalette(FIBITMAP *bitmap) {
48         return FreeImage_GetPalette(bitmap);
49     }
50 
51     FIBITMAP* convertTo32Bits(FIBITMAP* bitmap) {
52         return FreeImage_ConvertTo32Bits(bitmap);
53     }
54 
55     int getWidth(FIBITMAP* bitmap) {
56         return FreeImage_GetWidth(bitmap);
57     }
58 
59     int getHeight(FIBITMAP* bitmap) {
60         return FreeImage_GetHeight(bitmap);
61     }
62 
63     int getBPP(FIBITMAP* bitmap) {
64         return FreeImage_GetBPP(bitmap);
65     }
66 
67     void* getBits(FIBITMAP* bitmap) {
68         return FreeImage_GetBits(bitmap);
69     }
70 
71     ImageFormat getFileType(string path) {
72         import std..string : toStringz;
73         // 第2引数は現在使われていないらしい。
74         return cast(ImageFormat)FreeImage_GetFileType(path.toStringz,0);
75     }
76 }