public BitmapDrawingContext(SKSurface surface, Vector dpi, IVisualBrushRenderer visualBrushRenderer)
: base(surface.Canvas, dpi, visualBrushRenderer)
{
_surface = surface;
}
/// <summary>
/// Configure paint wrapper to use visual brush.
/// </summary>
/// <param name="paintWrapper">Paint wrapper.</param>
/// <param name="visualBrush">Visual brush.</param>
/// <param name="visualBrushRenderer">Visual brush renderer.</param>
/// <param name="tileBrushImage">Tile brush image.</param>
private void ConfigureVisualBrush(ref PaintWrapper paintWrapper, IVisualBrush visualBrush, IVisualBrushRenderer visualBrushRenderer, ref IDrawableBitmapImpl tileBrushImage)
{
if (_visualBrushRenderer == null)
{
throw new NotSupportedException("No IVisualBrushRenderer was supplied to DrawingContextImpl.");
}
var intermediateSize = visualBrushRenderer.GetRenderTargetSize(visualBrush);
if (intermediateSize.Width >= 1 && intermediateSize.Height >= 1)
{
var intermediate = CreateRenderTarget(intermediateSize, false);
using (var ctx = intermediate.CreateDrawingContext(visualBrushRenderer))
{
ctx.Clear(Colors.Transparent);
visualBrushRenderer.RenderVisualBrush(ctx, visualBrush);
}
tileBrushImage = intermediate;
paintWrapper.AddDisposable(tileBrushImage);
}
}
public IDrawingContextImpl CreateDrawingContext(IVisualBrushRenderer visualBrushRenderer)
{
return(new BitmapDrawingContext(Bitmap, _dpi, visualBrushRenderer));
}
public BitmapDrawingContext(SKBitmap bitmap, Vector dpi, IVisualBrushRenderer visualBrushRenderer)
: this(CreateSurface(bitmap), dpi, visualBrushRenderer)
{
}
public IDrawingContextImpl CreateDrawingContext(IVisualBrushRenderer visualBrushRenderer, Action finishedCallback)
{
return(new DrawingContextImpl(visualBrushRenderer, null, _renderTarget, finishedCallback: finishedCallback));
}
public virtual IDrawingContextImpl CreateDrawingContext(IVisualBrushRenderer visualBrushRenderer) => CreateDrawingContext(visualBrushRenderer, null);
public IDrawingContextImpl CreateDrawingContext(IVisualBrushRenderer visualBrushRenderer)
{
return(new DrawingContextImpl(visualBrushRenderer, _target, _dwriteFactory));
}
public IDrawingContextImpl CreateDrawingContext(IVisualBrushRenderer visualBrushRenderer)
{
var session = _surface.BeginDraw();
bool success = false;
try
{
var disp = session.Display;
var gl = disp.GlInterface;
gl.GetIntegerv(GL_FRAMEBUFFER_BINDING, out var fb);
var size = session.Size;
var scaling = session.Scaling;
if (size.Width <= 0 || size.Height <= 0 || scaling < 0)
{
session.Dispose();
throw new InvalidOperationException(
$"Can't create drawing context for surface with {size} size and {scaling} scaling");
}
gl.Viewport(0, 0, size.Width, size.Height);
gl.ClearStencil(0);
gl.ClearColor(0, 0, 0, 0);
gl.Clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
lock (_grContext)
{
_grContext.ResetContext();
GRBackendRenderTarget renderTarget =
new GRBackendRenderTarget(size.Width, size.Height, disp.SampleCount, disp.StencilSize,
new GRGlFramebufferInfo((uint)fb, GRPixelConfig.Rgba8888.ToGlSizedFormat()));
var surface = SKSurface.Create(_grContext, renderTarget,
session.IsYFlipped ? GRSurfaceOrigin.TopLeft : GRSurfaceOrigin.BottomLeft,
GRPixelConfig.Rgba8888.ToColorType());
var nfo = new DrawingContextImpl.CreateInfo
{
GrContext = _grContext,
Canvas = surface.Canvas,
Dpi = SkiaPlatform.DefaultDpi * scaling,
VisualBrushRenderer = visualBrushRenderer,
DisableTextLcdRendering = true
};
var ctx = new DrawingContextImpl(nfo, Disposable.Create(() =>
{
surface.Canvas.Flush();
surface.Dispose();
renderTarget.Dispose();
_grContext.Flush();
session.Dispose();
}));
success = true;
return(ctx);
}
}
finally
{
if (!success)
{
session.Dispose();
}
}
}
/// <inheritdoc/> public IDrawingContextImpl CreateDrawingContext(IVisualBrushRenderer vbr) => PlatformImpl.Item.CreateDrawingContext(vbr);
public IDrawingContextImpl CreateDrawingContext(IVisualBrushRenderer visualBrushRenderer)
{
return(new DrawingContextImpl(visualBrushRenderer, null, _window._deviceContext));
}
public IDrawingContextImpl CreateDrawingContext(IVisualBrushRenderer visualBrushRenderer)
{
return(new HeadlessDrawingContextStub());
}
/// <summary>
/// Initializes a new instance of the <see cref="DrawingContext"/> class.
/// </summary>
/// <param name="surface">The GDK drawable.</param>
public DrawingContext(Gdk.Drawable drawable, IVisualBrushRenderer visualBrushRenderer)
{
_context = Gdk.CairoHelper.Create(drawable);
_visualBrushRenderer = visualBrushRenderer;
}
/// <summary>
/// Initializes a new instance of the <see cref="DrawingContext"/> class.
/// </summary>
/// <param name="surface">The target surface.</param>
public DrawingContext(Cairo.Surface surface, IVisualBrushRenderer visualBrushRenderer)
{
_context = new Cairo.Context(surface);
_visualBrushRenderer = visualBrushRenderer;
}