gfm.sdl2.texture source code

1 module gfm.sdl2.texture;
2 
3 import std.string;
4 
5 import derelict.sdl2.sdl;
6 
7 import gfm.core.log;
8 
9 import gfm.sdl2.sdl,
10        gfm.sdl2.surface,
11        gfm.sdl2.renderer;
12 
13 /// SDL Texture wrapper.
14 final class SDL2Texture
15 {
16     public
17     {
18         /// Creates a SDL Texture for a specific renderer.
19         this(SDL2Renderer renderer, uint format, uint access, int width, int height)
20         {
21             _sdl2 = renderer._sdl2;
22             _handle = SDL_CreateTexture(renderer._renderer, format, access, width, height);
23             if (_handle is null)
24                 _sdl2.throwSDL2Exception("SDL_CreateTexture");
25         }
26 
27         /// Creates a SDL Texture for a specific renderer, from an existing surface.
28         this(SDL2Renderer renderer, SDL2Surface surface)
29         {
30             _handle = SDL_CreateTextureFromSurface(renderer._renderer, surface._surface);
31             if (_handle is null)
32                 _sdl2.throwSDL2Exception("SDL_CreateTextureFromSurface");
33         }
34 
35         ~this()
36         {
37             close();
38         }
39 
40         /// Releases the SDL resource.
41         void close() 
42         {
43             if (_handle !is null)
44             {
45                 SDL_DestroyTexture(_handle);
46                 _handle = null;
47             }
48         }
49 
50         void setBlendMode(SDL_BlendMode blendMode)
51         {
52             if (SDL_SetTextureBlendMode(_handle, blendMode) != 0)
53                 _sdl2.throwSDL2Exception("SDL_SetTextureBlendMode");
54         }
55 
56         void setColorMod(ubyte r, ubyte g, ubyte b)
57         {
58             if (SDL_SetTextureColorMod(_handle, r, g, b) != 0)
59                 _sdl2.throwSDL2Exception("SDL_SetTextureColorMod");
60         }
61 
62         void setAlphaMod(ubyte a)
63         {
64             if (SDL_SetTextureAlphaMod(_handle, a) != 0)
65                 _sdl2.throwSDL2Exception("SDL_SetTextureAlphaMod");
66         }
67 
68         uint format()
69         {
70             uint res;
71             int err = SDL_QueryTexture(_handle, &res, null, null, null);
72             if (err != 0)
73                 _sdl2.throwSDL2Exception("SDL_QueryTexture");
74 
75             return res;
76         }
77 
78         int access()
79         {
80             int res;
81             int err = SDL_QueryTexture(_handle, null, &res, null, null);
82             if (err != 0)
83                 _sdl2.throwSDL2Exception("SDL_QueryTexture");
84 
85             return res;
86         }
87 
88         /// Returns: Width of texture.
89         int width()
90         {
91             int res;
92             int err = SDL_QueryTexture(_handle, null, null, &res, null);
93             if (err != 0)
94                 _sdl2.throwSDL2Exception("SDL_QueryTexture");
95             return res;
96         }
97 
98         /// Returns: Height of texture.
99         int height()
100         {
101             int res;
102             int err = SDL_QueryTexture(_handle, null, null, null, &res);
103             if (err != 0)
104                 _sdl2.throwSDL2Exception("SDL_QueryTexture");
105             return res;
106         }
107     }
108 
109     package
110     {
111         SDL_Texture* _handle;
112     }
113 
114     private
115     {
116         SDL2 _sdl2;
117     }
118 }
119