108 lines
3.7 KiB
C#
108 lines
3.7 KiB
C#
using System;
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using System.Diagnostics.CodeAnalysis;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Media;
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using System.Windows.Media.Imaging;
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using Jellyfish.Library;
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namespace Jellyfish.Virtu.Services
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{
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public sealed class WpfVideoService : VideoService
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{
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public WpfVideoService(Machine machine, UserControl page, Image image) :
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base(machine)
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{
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if (page == null)
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{
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throw new ArgumentNullException("page");
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}
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if (image == null)
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{
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throw new ArgumentNullException("image");
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}
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_page = page;
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_image = image;
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_image.Source = _bitmap;
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_page.Loaded += (sender, e) => SetWindowSizeToContent();
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_page.SizeChanged += (sender, e) => SetImageSize();
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}
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public override void SetFullScreen(bool isFullScreen)
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{
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if (_isFullScreen != isFullScreen)
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{
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_isFullScreen = isFullScreen;
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_page.Dispatcher.Send(() =>
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{
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var window = Window.GetWindow(_page);
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if (_isFullScreen)
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{
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window.ResizeMode = ResizeMode.NoResize;
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window.WindowStyle = WindowStyle.None;
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window.WindowState = WindowState.Maximized;
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}
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else
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{
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window.WindowState = WindowState.Normal;
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window.WindowStyle = WindowStyle.SingleBorderWindow;
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window.ResizeMode = ResizeMode.CanResize;
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}
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});
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}
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}
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[SuppressMessage("Microsoft.Usage", "CA2233:OperationsShouldNotOverflow")]
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public override void SetPixel(int x, int y, uint color)
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{
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_pixels[y * BitmapWidth + x] = color;
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_pixelsDirty = true;
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}
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public override void Update() // main thread
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{
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if (_pixelsDirty)
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{
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_pixelsDirty = false;
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_bitmap.WritePixels(BitmapRect, _pixels, BitmapStride, 0);
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}
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}
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private void SetImageSize()
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{
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int uniformScale = Math.Max(1, Math.Min((int)_page.RenderSize.Width / BitmapWidth, (int)_page.RenderSize.Height / BitmapHeight));
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_image.Width = uniformScale * BitmapWidth;
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_image.Height = uniformScale * BitmapHeight;
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}
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private void SetWindowSizeToContent()
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{
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if (!_sizedToContent)
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{
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_sizedToContent = true;
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var window = Application.Current.MainWindow;
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var size = window.DesiredSize;
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window.Width = size.Width;
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window.Height = size.Height;
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}
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}
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private const int BitmapWidth = 560;
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private const int BitmapHeight = 384;
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private const int BitmapDpi = 96;
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private static readonly PixelFormat BitmapPixelFormat = PixelFormats.Bgr32;
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private static readonly int BitmapStride = (BitmapWidth * BitmapPixelFormat.BitsPerPixel + 7) / 8;
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private static readonly Int32Rect BitmapRect = new Int32Rect(0, 0, BitmapWidth, BitmapHeight);
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private UserControl _page;
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private Image _image;
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private WriteableBitmap _bitmap = new WriteableBitmap(BitmapWidth, BitmapHeight, BitmapDpi, BitmapDpi, BitmapPixelFormat, null);
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private uint[] _pixels = new uint[BitmapWidth * BitmapHeight];
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private bool _pixelsDirty;
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private bool _isFullScreen;
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private bool _sizedToContent;
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}
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}
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