add from giga-device, new branch added

2025-08-21 16:51:25 +08:00
commit 43bbc06bbb
1296 changed files with 264186 additions and 0 deletions
@@ -0,0 +1,148 @@
+//-----------------------------------------------------------------------
+//-----------------------------------------------------------------------
+//     file="ShowViewPort.cs"
+//     Project: StepVisualizer
+//     AuthorGroup: Nitload Space
+//     Copyright (c) Nitload Space. All rights reserved.
+//     
+//     Permission is hereby granted, free of charge, to any person 
+//     obtaining a copy of this software and associated documentation 
+//     files (the “Software”), to deal in the Software without restriction, 
+//     including without limitation the rights to use, copy, modify, merge,
+//     publish, distribute, sublicense, and/or sell copies of the Software, 
+//     and to permit persons to whom the Software is furnished to do so, 
+//     subject to the following conditions:
+//     
+//     The above copyright notice and 
+//     this permission notice shall be included in all copies 
+//     or substantial portions of the Software.
+//     
+//     THE SOFTWARE IS PROVIDED “AS IS”, 
+//     WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
+//     INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
+//     FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
+//     IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
+//     DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 
+//     ARISING FROM, OUT OF OR IN CONNECTION WITH 
+//     THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//     
+//-----------------------------------------------------------------------
+//-----------------------------------------------------------------------
+using StgSharp.Controls;
+using StgSharp.Graphics;
+using StgSharp.MVVM;
+using StgSharp.Threading;
+using StgSharp.Timing;
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Threading;
+
+namespace StgSharp.MVVM.ViewModel
+{
+    public abstract partial class ViewModelBase
+    {
+
+        private volatile bool _closed = true;
+        private ViewBase _nextView, _currentView;
+
+        protected ViewBase CurrentView
+        {
+            get => _currentView;
+            set => _nextView = value;
+        }
+
+        /// <summary>
+        ///   CustomizeInit this form and render it on screen, and respond with operation
+        /// </summary>
+        public unsafe void UseViewModel( string viewEntryName )
+        {
+            CustomizeInitialize();
+            UseViewInNextFrame( viewEntryName );
+            TimeSpanAwaitingToken fpsCountingToken = fpsCountProvider.ParticipantSpanAwaiting( 1 );
+            fpsCountingToken.TimeSpanRefreshed += CountFps;
+            fpsCountingToken.MissTimeSpanRefreshed += CountFps;
+            if( _nextView != _currentView ) {
+                Interlocked.Exchange( ref _currentView, _nextView );
+            }
+            Thread renderThread = new Thread(
+                ( token ) => {
+                    try
+                    {
+                        ProcessFrameWithoutEvent();
+                    }
+                    catch( Exception ex )
+                    {
+                        InternalIO.InternalWriteLog(
+                            $"Critical error when rendering:\n" + $"{ex}", LogType.Error );
+                        ShouldClose = true;
+                        throw;
+                    }
+                } );
+            renderThread.Start();
+            /**/
+            using( TimeSpanAwaitingToken eventAwaitingToken = frameTimeProvider.ParticipantSpanAwaiting(
+                1 ) )
+            {
+                while( _closed )
+                {
+                    if( _nextView != _currentView ) {
+                        Interlocked.Exchange( ref _currentView, _nextView );
+                    }
+                    InternalIO.glfwPollEvents();
+                    eventAwaitingToken.WaitNextSpan();
+                    _closed = !ShouldClose;
+                }
+            }
+            /**/
+            renderThread.Join();
+            fpsCountingToken.Dispose();
+            fpsCountProvider.StopSpanProviding();
+            frameTimeProvider.StopSpanProviding();
+        }
+
+        protected void UseViewInNextFrame( string name )
+        {
+            if( !allView.TryGetValue( name, out ViewBase v ) ) {
+                throw new KeyNotFoundException(
+                    $"{$"Cannot find View named {name} "}{$"in current View Model of {GetType().FullName}"}" );
+            }
+            CurrentView = v;
+        }
+
+        private void CountFps( object sender, EventArgs e )
+        {
+            Interlocked.Exchange( ref _frameSpeed, _frameCount );
+            Interlocked.Exchange( ref _frameCount, 0 );
+        }
+
+        private unsafe void PrivateShow()
+        {
+            if( 0 == InternalIO.glfwWindowShouldClose( this.viewPortDisplay.ViewPortHandle ) )
+            {
+                CurrentView.Use();
+                RenderStream.PollEvents();
+            }
+        }
+
+        private void ProcessFrameWithoutEvent()
+        {
+            using( TimeSpanAwaitingToken renderAwaitingToken = frameTimeProvider.ParticipantSpanAwaiting(
+                1 ) )
+            {
+                renderAwaitingToken.TimeSpanRefreshed += ( _, _ ) => { };
+                while( _closed )
+                {
+                    foreach( ViewPort context in CurrentView.Render ) {
+                        context.FlushSize();
+                    }
+                    CurrentView.Use();
+                    renderAwaitingToken.WaitNextSpan();
+                    Interlocked.Add( ref _frameCount, 1 );
+                }
+            }
+        }
+
+    }
+}