/// <summary>
/// Create new drawing context.
/// </summary>
/// <param name="createInfo">Create info.</param>
/// <param name="disposables">Array of elements to dispose after drawing has finished.</param>
public DrawingContextImpl(CreateInfo createInfo, params IDisposable[] disposables)
{
_dpi = createInfo.Dpi;
_visualBrushRenderer = createInfo.VisualBrushRenderer;
_disposables = disposables;
_canTextUseLcdRendering = !createInfo.DisableTextLcdRendering;
_grContext = createInfo.GrContext;
_gpu = createInfo.Gpu;
if (_grContext != null)
{
Monitor.Enter(_grContext);
}
Surface = createInfo.Surface;
Canvas = createInfo.Canvas ?? createInfo.Surface?.Canvas;
_session = createInfo.CurrentSession;
if (Canvas == null)
{
throw new ArgumentException("Invalid create info - no Canvas provided", nameof(createInfo));
}
if (!_dpi.NearlyEquals(SkiaPlatform.DefaultDpi))
{
_postTransform =
Matrix.CreateScale(_dpi.X / SkiaPlatform.DefaultDpi.X, _dpi.Y / SkiaPlatform.DefaultDpi.Y);
}
Transform = Matrix.Identity;
}
/// <summary>
/// Create new surface render target.
/// </summary>
/// <param name="createInfo">Create info.</param>
public SurfaceRenderTarget(CreateInfo createInfo)
{
PixelSize = new PixelSize(createInfo.Width, createInfo.Height);
Dpi = createInfo.Dpi;
_disableLcdRendering = createInfo.DisableTextLcdRendering;
_grContext = createInfo.GrContext;
_gpu = createInfo.Gpu;
if (!createInfo.DisableManualFbo)
{
_surface = _gpu?.TryCreateSurface(PixelSize, createInfo.Session);
}
if (_surface == null)
{
_surface = new SkiaSurfaceWrapper(CreateSurface(createInfo.GrContext, PixelSize.Width, PixelSize.Height,
createInfo.Format));
}
_canvas = _surface?.Surface.Canvas;
if (_surface == null || _canvas == null)
{
throw new InvalidOperationException("Failed to create Skia render target surface");
}
}
public PlatformRenderInterface(ISkiaGpu skiaGpu, long?maxResourceBytes = null)
{
if (skiaGpu != null)
{
_skiaGpu = skiaGpu;
return;
}
var gl = AvaloniaLocator.Current.GetService <IWindowingPlatformGlFeature>();
if (gl != null)
{
_skiaGpu = new GlSkiaGpu(gl, maxResourceBytes);
}
}
public PlatformRenderInterface(ISkiaGpu skiaGpu, long?maxResourceBytes = null)
{
DefaultPixelFormat = SKImageInfo.PlatformColorType.ToPixelFormat();
if (skiaGpu != null)
{
_skiaGpu = skiaGpu;
return;
}
var gl = AvaloniaLocator.Current.GetService <IPlatformOpenGlInterface>();
if (gl != null)
{
_skiaGpu = new GlSkiaGpu(gl, maxResourceBytes);
}
}
public PlatformRenderInterface(ISkiaGpu skiaGpu, long?maxResourceBytes = null)
{
DefaultPixelFormat = SKImageInfo.PlatformColorType.ToPixelFormat();
if (skiaGpu != null)
{
_skiaGpu = skiaGpu;
return;
}
var gl = AvaloniaLocator.Current.GetService <IPlatformOpenGlInterface>();
if (gl != null)
{
_skiaGpu = new GlSkiaGpu(gl, maxResourceBytes);
}
//TODO: SKFont crashes when disposed in finalizer so we keep it alive
GC.SuppressFinalize(s_font);
}
public SkiaGpuRenderTarget(ISkiaGpu skiaGpu, ISkiaGpuRenderTarget renderTarget)
{
_skiaGpu = skiaGpu;
_renderTarget = renderTarget;
}
