public virtual void Render()
{
if (glContext == null)
{
PrepareGLContexts();
}
EAGLContext.SetCurrentContext(glContext);
// create the surface
if (renderTarget.Width == 0 || renderTarget.Height == 0)
{
renderTarget = SKGLDrawable.CreateRenderTarget();
}
using (var surface = SKSurface.Create(context, renderTarget))
{
// draw on the surface
DrawInSurface(surface, renderTarget);
SKDelegate?.DrawInSurface(surface, renderTarget);
surface.Canvas.Flush();
}
// flush the SkiaSharp context to the GL context
context.Flush();
// present the GL buffers
glContext.PresentRenderBuffer(Gles.GL_RENDERBUFFER);
EAGLContext.SetCurrentContext(null);
}
public new void DrawInRect(GLKView view, CGRect rect)
{
if (designMode)
{
return;
}
if (context == null)
{
var glInterface = GRGlInterface.CreateNativeGlInterface();
context = GRContext.Create(GRBackend.OpenGL, glInterface);
// get the initial details
renderTarget = SKGLDrawable.CreateRenderTarget();
}
// set the dimensions as they might have changed
renderTarget.Width = (int)DrawableWidth;
renderTarget.Height = (int)DrawableHeight;
// create the surface
using (var surface = SKSurface.Create(context, renderTarget))
{
// draw on the surface
DrawInSurface(surface, renderTarget);
surface.Canvas.Flush();
}
// flush the SkiaSharp contents to GL
context.Flush();
}
public override void PrepareOpenGL()
{
base.PrepareOpenGL();
// create the context
var glInterface = GRGlInterface.CreateNativeGlInterface();
context = GRContext.Create(GRBackend.OpenGL, glInterface);
renderTarget = SKGLDrawable.CreateRenderTarget();
}
public virtual void Render()
{
if (glContext == null)
{
PrepareGLContexts();
}
EAGLContext.SetCurrentContext(glContext);
// manage the drawing surface
if (renderTarget == null || surface == null)
{
// create or update the dimensions
renderTarget?.Dispose();
renderTarget = SKGLDrawable.CreateRenderTarget(0, 0);
// create the surface
surface?.Dispose();
surface = SKSurface.Create(context, renderTarget, GRSurfaceOrigin.BottomLeft, SKColorType.Rgba8888);
}
using (new SKAutoCanvasRestore(surface.Canvas, true))
{
// start drawing
var e = new SKPaintGLSurfaceEventArgs(surface, renderTarget, GRSurfaceOrigin.BottomLeft, SKColorType.Rgba8888);
OnPaintSurface(e);
#pragma warning disable CS0618 // Type or member is obsolete
DrawInSurface(e.Surface, e.RenderTarget);
SKDelegate?.DrawInSurface(e.Surface, e.RenderTarget);
#pragma warning restore CS0618 // Type or member is obsolete
}
// flush the SkiaSharp context to the GL context
surface.Canvas.Flush();
context.Flush();
// present the GL buffers
glContext.PresentRenderBuffer(Gles.GL_RENDERBUFFER);
EAGLContext.SetCurrentContext(null);
}
public new void DrawInRect(GLKView view, CGRect rect)
{
if (designMode)
{
return;
}
// create the contexts if not done already
if (context == null)
{
var glInterface = GRGlInterface.CreateNativeGlInterface();
context = GRContext.Create(GRBackend.OpenGL, glInterface);
}
// manage the drawing surface
if (renderTarget == null || surface == null || renderTarget.Width != DrawableWidth || renderTarget.Height != DrawableHeight)
{
// create or update the dimensions
renderTarget?.Dispose();
renderTarget = SKGLDrawable.CreateRenderTarget((int)DrawableWidth, (int)DrawableHeight);
// create the surface
surface?.Dispose();
surface = SKSurface.Create(context, renderTarget, GRSurfaceOrigin.BottomLeft, SKColorType.Rgba8888);
}
using (new SKAutoCanvasRestore(surface.Canvas, true))
{
// start drawing
var e = new SKPaintGLSurfaceEventArgs(surface, renderTarget, GRSurfaceOrigin.BottomLeft, SKColorType.Rgba8888);
OnPaintSurface(e);
#pragma warning disable CS0618 // Type or member is obsolete
DrawInSurface(e.Surface, e.RenderTarget);
#pragma warning restore CS0618 // Type or member is obsolete
}
// flush the SkiaSharp contents to GL
surface.Canvas.Flush();
context.Flush();
}
public void OnDrawFrame(IGL10 gl)
{
GLES10.GlClear(GLES10.GlColorBufferBit | GLES10.GlDepthBufferBit | GLES10.GlStencilBufferBit);
// create the contexts if not done already
if (context == null)
{
var glInterface = GRGlInterface.CreateNativeGlInterface();
context = GRContext.Create(GRBackend.OpenGL, glInterface);
}
// manage the drawing surface
if (renderTarget == null || surface == null || renderTarget.Width != surfaceWidth || renderTarget.Height != surfaceHeight)
{
// create or update the dimensions
renderTarget?.Dispose();
renderTarget = SKGLDrawable.CreateRenderTarget(surfaceWidth, surfaceHeight);
// create the surface
surface?.Dispose();
surface = SKSurface.Create(context, renderTarget, GRSurfaceOrigin.BottomLeft, SKColorType.Rgba8888);
}
using (new SKAutoCanvasRestore(surface.Canvas, true))
{
// start drawing
var e = new SKPaintGLSurfaceEventArgs(surface, renderTarget, GRSurfaceOrigin.BottomLeft, SKColorType.Rgba8888);
OnPaintSurface(e);
#pragma warning disable CS0618 // Type or member is obsolete
OnDrawFrame(e.Surface, e.RenderTarget);
#pragma warning restore CS0618 // Type or member is obsolete
}
// flush the SkiaSharp contents to GL
surface.Canvas.Flush();
context.Flush();
}
