Virtu/Virtu/Silverlight/Services/SilverlightVideoService.cs

100 lines
3.3 KiB
C#

using System;
using System.Diagnostics.CodeAnalysis;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media.Imaging;
using Jellyfish.Library;
namespace Jellyfish.Virtu.Services
{
public sealed class SilverlightVideoService : VideoService
{
public SilverlightVideoService(Machine machine, UserControl page, Image image) :
base(machine)
{
if (page == null)
{
throw new ArgumentNullException("page");
}
if (image == null)
{
throw new ArgumentNullException("image");
}
_page = page;
_image = image;
_image.Source = _bitmap;
_page.LayoutUpdated += (sender, e) => SetWindowSizeToContent();
_page.SizeChanged += (sender, e) => SetImageSize();
}
public override void SetFullScreen(bool isFullScreen)
{
_page.Dispatcher.Send(() =>
{
var application = Application.Current;
if (application.IsRunningOutOfBrowser)
{
var content = application.Host.Content;
if (content.IsFullScreen != isFullScreen)
{
content.IsFullScreen = isFullScreen;
}
}
});
}
[SuppressMessage("Microsoft.Usage", "CA2233:OperationsShouldNotOverflow")]
public override void SetPixel(int x, int y, uint color)
{
_pixels[y * BitmapWidth + x] = (int)color;
_pixelsDirty = true;
}
public override void Update() // main thread
{
if (_pixelsDirty)
{
_pixelsDirty = false;
for (int i = 0; i < BitmapWidth * BitmapHeight; i++)
{
_bitmap.Pixels[i] = _pixels[i];
}
_bitmap.Invalidate();
}
}
private void SetImageSize(bool swapOrientation = false)
{
int uniformScale = Math.Max(1, swapOrientation ? Math.Min((int)_page.RenderSize.Height / BitmapWidth, (int)_page.RenderSize.Width / BitmapHeight) :
Math.Min((int)_page.RenderSize.Width / BitmapWidth, (int)_page.RenderSize.Height / BitmapHeight));
_image.Width = uniformScale * BitmapWidth;
_image.Height = uniformScale * BitmapHeight;
}
private void SetWindowSizeToContent()
{
var application = Application.Current;
if (application.IsRunningOutOfBrowser && !_sizedToContent)
{
_sizedToContent = true;
var window = application.MainWindow;
var size = application.RootVisual.DesiredSize;
window.Width = size.Width;
window.Height = size.Height;
}
}
private const int BitmapWidth = 560;
private const int BitmapHeight = 384;
private UserControl _page;
private Image _image;
private WriteableBitmap _bitmap = new WriteableBitmap(BitmapWidth, BitmapHeight);
private int[] _pixels = new int[BitmapWidth * BitmapHeight];
private bool _pixelsDirty;
private bool _sizedToContent;
}
}