public XImageCursor(IntPtr display, IBitmapImpl bitmap, PixelPoint hotSpot)
{
var size = Marshal.SizeOf <XcursorImage>() +
(bitmap.PixelSize.Width * bitmap.PixelSize.Height * 4);
var runtimePlatform = AvaloniaLocator.Current.GetService <IRuntimePlatform>() ??
throw new InvalidOperationException("Unable to locate IRuntimePlatform");
var platformRenderInterface = AvaloniaLocator.Current.GetService <IPlatformRenderInterface>() ??
throw new InvalidOperationException("Unable to locate IPlatformRenderInterface");
_pixelSize = bitmap.PixelSize;
_blob = runtimePlatform.AllocBlob(size);
var image = (XcursorImage *)_blob.Address;
image->version = 1;
image->size = Marshal.SizeOf <XcursorImage>();
image->width = bitmap.PixelSize.Width;
image->height = bitmap.PixelSize.Height;
image->xhot = hotSpot.X;
image->yhot = hotSpot.Y;
image->pixels = (IntPtr)(image + 1);
using (var renderTarget = platformRenderInterface.CreateRenderTarget(new[] { this }))
using (var ctx = renderTarget.CreateDrawingContext(null))
{
var r = new Rect(_pixelSize.ToSize(1));
ctx.DrawBitmap(RefCountable.CreateUnownedNotClonable(bitmap), 1, r, r);
}
Handle = XLib.XcursorImageLoadCursor(display, _blob.Address);
}
public ManagedCairoSurface(int width, int height)
{
_plat = AvaloniaLocator.Current.GetService <IRuntimePlatform>();
Stride = width * 4;
_size = height * Stride;
_blob = _plat.AllocBlob(_size * 2);
Buffer = _blob.Address;
Surface = Native.CairoImageSurfaceCreateForData(Buffer, 1, width, height, Stride);
}
public X11Framebuffer(IntPtr display, IntPtr xid, int width, int height, int factor)
{
_display = display;
_xid = xid;
Size = new PixelSize(width * factor, height * factor);
RowBytes = Size.Width * 4;
Dpi = new Vector(96, 96) * factor;
Format = PixelFormat.Bgra8888;
_blob = AvaloniaLocator.Current.GetService <IRuntimePlatform>().AllocBlob(RowBytes * Size.Height);
Address = _blob.Address;
}
public X11Framebuffer(IntPtr display, IntPtr xid, int depth, int width, int height, double factor)
{
_display = display;
_xid = xid;
_depth = depth;
Size = new PixelSize(width, height);
RowBytes = width * 4;
Dpi = new Vector(96, 96) * factor;
Format = PixelFormat.Bgra8888;
_blob = AvaloniaGlobals.RuntimePlatform.AllocBlob(RowBytes * height);
Address = _blob.Address;
}
public X11Framebuffer(IntPtr display, IntPtr xid, int depth, int width, int height, double factor)
{
// HACK! Please fix renderer, should never ask for 0x0 bitmap.
width = Math.Max(1, width);
height = Math.Max(1, height);
_display = display;
_xid = xid;
_depth = depth;
Size = new PixelSize(width, height);
RowBytes = width * 4;
Dpi = new Vector(96, 96) * factor;
Format = PixelFormat.Bgra8888;
_blob = AvaloniaLocator.Current.GetService <IRuntimePlatform>().AllocBlob(RowBytes * height);
Address = _blob.Address;
}
public EmulatedFramebuffer(TopLevelImpl.TopLevelView view)
{
_view = view;
_isDeferred = !Dispatcher.UIThread.CheckAccess();
_logicalSize = _view.LogicalSize;
var pixelSize = _view.PixelSize;
Width = (int)pixelSize.Width;
Height = (int)pixelSize.Height;
RowBytes = Width * 4;
Dpi = new Vector(96 * pixelSize.Width / _logicalSize.Width, 96 * pixelSize.Height / _logicalSize.Height);
Format = PixelFormat.Rgba8888;
var size = Height * RowBytes;
_blob = AvaloniaLocator.Current.GetService <IRuntimePlatform>().AllocBlob(size);
memset(Address, 0, new IntPtr(size));
}
public FramebufferData(IUnmanagedBlob data, int width, int height)
{
Data = data;
Size = new PixelSize(width, height);
var header = new UnmanagedMethods.BITMAPINFOHEADER();
header.Init();
header.biPlanes = 1;
header.biBitCount = _bytesPerPixel * 8;
header.Init();
header.biWidth = width;
header.biHeight = -height;
Header = header;
}
public WindowFramebuffer(IntPtr handle, int width, int height)
{
if (width <= 0)
{
throw new ArgumentException("width is less than zero");
}
if (height <= 0)
{
throw new ArgumentException("height is less than zero");
}
_handle = handle;
_bmpInfo.Init();
_bmpInfo.biPlanes = 1;
_bmpInfo.biBitCount = 32;
_bmpInfo.Init();
_bmpInfo.biWidth = width;
_bmpInfo.biHeight = -height;
_bitmapBlob = AvaloniaLocator.Current.GetService <IRuntimePlatform>().AllocBlob(width * height * 4);
}
public WindowFramebuffer(IntPtr handle, PixelSize size)
{
if (size.Width <= 0)
{
throw new ArgumentException("Width is less than zero");
}
if (size.Height <= 0)
{
throw new ArgumentException("Height is less than zero");
}
_handle = handle;
_bmpInfo.Init();
_bmpInfo.biPlanes = 1;
_bmpInfo.biBitCount = 32;
_bmpInfo.Init();
_bmpInfo.biWidth = size.Width;
_bmpInfo.biHeight = -size.Height;
_bitmapBlob = AvaloniaGlobals.RuntimePlatform.AllocBlob(size.Width * size.Height * 4);
}
