102 lines
3.8 KiB
C#
102 lines
3.8 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Reflection;
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using System.Text;
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using System.Threading;
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using System.Threading.Tasks;
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namespace StgSharp.Graphics
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{
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public abstract partial class Form
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{
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#region form thread setting
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private List<FrameAsyncThread> frameAsyncThreadList;
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#endregion form thread setting
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/// <summary>
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/// Init this form and render it on screen, and respond with operation
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/// </summary>
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public unsafe void Show()
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{
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if (gl == null)
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{
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InternalIO.InternalWriteLog($"Attempt to show form {name} before init", LogType.Error);
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}
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else
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{
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frameTimeProvider = new TimeSpanProvider(1 / 60.0, TimeSpanProvider.DefaultProvider);
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MethodInfo[] methods = this.GetType().GetMethods(
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BindingFlags.Public |
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BindingFlags.Instance |
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BindingFlags.DeclaredOnly);
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if (methods.Length != 0)
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{
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foreach (MethodInfo m in methods) //find all methods decorated by RenderActivityAttribute
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{
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RenderActivityAttribute attr = m.GetCustomAttribute<RenderActivityAttribute>(false);
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if (attr == null)
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{
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continue;
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}
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if (!m.IsStatic && (m.GetParameters().Length != 0) && (m.ReturnType != typeof(void)))
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{
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throw new NotSupportedException("A render activity cannot have parameters, returning value or be static.");
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}
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if (m.Name != "Main")
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{
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ThreadStart s = (ThreadStart)Delegate.CreateDelegate(typeof(ThreadStart), this, m);
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FrameAsyncThread t = new(s,attr._priority);
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frameAsyncThreadList.Add(t);
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}
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}
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}
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List<IGrouping<int,FrameAsyncThread>> threadGroup = frameAsyncThreadList.GroupBy<FrameAsyncThread, int>((t) => t.Priority).ToList();
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int priority = 0;
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foreach (var group in threadGroup)
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{
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foreach (var t in group)
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{
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t.Priority = priority;
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}
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priority++;
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}
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(Barrier, Barrier) b = FrameAsyncThread.CombineAsync(true, frameAsyncThreadList);
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FrameAsyncThread.AsyncStartAll(frameAsyncThreadList);
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if (b.Item1 == null)
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{
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while (!ShouldClose)
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{
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Main();
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SwapBuffers();
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PollEvents();
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frameTimeProvider.WaitNextSpan();
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Interlocked.Add(ref _frameCount, 1);
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}
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}
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else
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{
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while (!ShouldClose)
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{
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b.Item1.SignalAndWait();
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Main();
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b.Item2.SignalAndWait();
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SwapBuffers();
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PollEvents();
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frameTimeProvider.WaitNextSpan();
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Interlocked.Add(ref _frameCount, 1);
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}
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FrameAsyncThread.TerminateAll(frameAsyncThreadList);
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b.Item1.SignalAndWait();
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FrameAsyncThread.WaitAll(frameAsyncThreadList);
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}
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//InternalDeinit();
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}
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}
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}
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}
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