Multi-platform .NET bindings to the Ultralight project.
keii.dev
1using Silk.NET.OpenGLES;
2
3partial class Program {
4
5 private static bool _useBlitting = false;
6
7 private static double _scaleX = 1;
8
9 private static double _scaleY = 1;
10
11 private static unsafe void OnRender(double delta) //Method needs to be unsafe due to draw elements.
12 {
13 // ReSharper disable once ConditionIsAlwaysTrueOrFalse
14 if (_gl == null)
15 return;
16
17 _ulRenderer.Render();
18 _gpuDriverSite.Render(_snView);
19
20 {
21 var wndSize = _snView.Size;
22 var wndWidth = (uint) wndSize.Width;
23 var wndHeight = (uint) wndSize.Height;
24 var width = (uint) (_scaleX * wndWidth);
25 var height = (uint) (_scaleY * wndHeight);
26
27 _gl.BindFramebuffer(FramebufferTarget.Framebuffer, 0);
28 _gl.Viewport(0, 0, width, height);
29 _gl.ClearColor(0, 0, 0, 0);
30 _gl.Clear((uint) ClearBufferMask.ColorBufferBit);
31
32 _gpuDriverSite.TryGetFrameBufferAndTexture(_ulView, out var rb, out var tex, out var texWidth, out var texHeight);
33
34 if (_useBlitting) {
35 // /*
36 //_gl.Disable(EnableCap.FramebufferSrgb);
37 _gl.Disable(EnableCap.ScissorTest);
38 _gl.Disable(EnableCap.Blend);
39 //Bind the primary framebuffer, quad geometry and shader.
40 _gl.BindFramebuffer(FramebufferTarget.ReadFramebuffer, rb);
41 _gl.ReadBuffer(ReadBufferMode.ColorAttachment0);
42 _gl.BindFramebuffer(FramebufferTarget.DrawFramebuffer, 0);
43 //_gl.ClearColor(0, 0, 0, 0);
44 //_gl.Clear((uint) ClearBufferMask.ColorBufferBit);
45
46 _gl.BlitFramebuffer(
47 0, 0, (int) texWidth, (int) texHeight,
48 0, 0, (int) width, (int) height,
49 (uint) AttribMask.ColorBufferBit,
50 BlitFramebufferFilter.Linear);
51 }
52 else {
53 //_gl.Disable(EnableCap.FramebufferSrgb);
54 _gl.Disable(EnableCap.ScissorTest);
55 _gl.Disable(EnableCap.Blend);
56 //Bind the primary framebuffer, quad geometry and shader.
57 _gl.BindVertexArray(_qva);
58 _gl.UseProgram(_qpg);
59 _gl.ActiveTexture(TextureUnit.Texture0);
60 _gl.BindTexture(TextureTarget.Texture2D, tex);
61 _gl.Uniform1(_gl.GetUniformLocation(_qpg, "iTex"), 0);
62 CheckGl();
63
64 //Draw the quad.
65 _gl.DrawElements(PrimitiveType.Triangles,
66 (uint) _quadIndices.Length, DrawElementsType.UnsignedInt, null);
67 }
68 }
69 }
70
71}