examples.user_data source code

1 module examples.user_data;
2 
3 import sg = sokol.gfx;
4 import sapp = sokol.app;
5 import log = sokol.log;
6 import sglue = sokol.glue;
7 
8 extern (C):
9 
10 struct ExampleUserData {
11     ubyte data;
12     int[ubyte] map; // need druntime
13 }
14 
15 void init() @safe {
16     sg.Desc gfx = {
17         environment: sglue.environment,
18         logger: { func: &log.slog_func }
19     };
20     sg.setup(gfx);
21 }
22 
23 void frame_userdata(scope void* userdata) @trusted {
24     auto state = cast(ExampleUserData*) userdata;
25 
26     state.data++;
27     version (WebAssembly) {
28         // TODO support
29     }
30     else {
31         if (state.data % 13 == 0) {
32             state.map[state.data] = state.data * 13 / 3;
33         }
34         if (state.data % 12 == 0 && state.data % 15 == 0) {
35             state.map.clear();
36         }
37     }
38     debug {
39         import std.stdio : writeln;
40         try {
41             writeln(*state);
42         } catch (Exception) { }
43     }
44 
45     sg.Pass pass = { swapchain: sglue.swapchain };
46     sg.beginPass(pass);
47     sg.endPass();
48     sg.commit();
49 }
50 
51 void cleanup() @safe {
52     sg.shutdown();
53 }
54 
55 void main() {
56     auto userData = ExampleUserData(0, null);
57     sapp.Desc runner = {
58         window_title: "user-data.d",
59         init_cb: &init,
60         frame_userdata_cb: &frame_userdata,
61         cleanup_cb: &cleanup,
62         user_data: &userData,
63         width: 640,
64         height: 480,
65         sample_count: 4,
66         win32_console_attach: true,
67         icon: {sokol_default: true},
68         logger: {func: &log.func}
69     };
70     sapp.run(runner);
71 }