/// <inheritdoc />
public override void CopyRenderTarget(RenderTarget source, RenderTarget dest, Rectangle?sourceRect = null, Rectangle?destRect = null, bool smooth = false)
{
GLThread.ExecuteGLThread(() =>
{
RenderTarget srcTarget = source ?? Engine.Renderer.BaseTarget;
RenderTarget destTarget = dest ?? Engine.Renderer.BaseTarget;
Vector2 sourceSize = srcTarget.Size;
Vector2 destSize = destTarget.Size;
Rectangle srcRect = sourceRect ?? new Rectangle(0, 0, sourceSize);
Rectangle dstRect = destRect ?? new Rectangle(0, 0, destSize);
uint srcPointer = (uint)((GlRenderTarget)srcTarget)?.Pointer;
uint destPointer = (uint)((GlRenderTarget)destTarget)?.Pointer;
Gl.BindFramebuffer(FramebufferTarget.ReadFramebuffer, srcPointer);
Gl.BindFramebuffer(FramebufferTarget.DrawFramebuffer, destPointer);
Gl.BlitFramebuffer((int)srcRect.X, (int)srcRect.Y, (int)srcRect.Width, (int)srcRect.Height, (int)dstRect.X, (int)dstRect.Y, (int)dstRect.Width, (int)dstRect.Height,
ClearBufferMask.ColorBufferBit, smooth ? BlitFramebufferFilter.Linear : BlitFramebufferFilter.Nearest);
// Restore bindings and so on.
Engine.Renderer.EnsureRenderTarget();
});
}
