mirror of
https://github.com/ryujinx-mirror/ryujinx.git
synced 2024-12-14 09:12:54 +01:00
134 lines
4.4 KiB
C#
134 lines
4.4 KiB
C#
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using Gdk;
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using System;
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using System.Runtime.Versioning;
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using System.Runtime.InteropServices;
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namespace Ryujinx.Ui.Helper
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{
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public delegate void UpdateBoundsCallbackDelegate(Window window);
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[SupportedOSPlatform("macos")]
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static class MetalHelper
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{
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private const string LibObjCImport = "/usr/lib/libobjc.A.dylib";
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private struct Selector
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{
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public readonly IntPtr NativePtr;
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public unsafe Selector(string value)
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{
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int size = System.Text.Encoding.UTF8.GetMaxByteCount(value.Length);
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byte* data = stackalloc byte[size];
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fixed (char* pValue = value)
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{
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System.Text.Encoding.UTF8.GetBytes(pValue, value.Length, data, size);
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}
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NativePtr = sel_registerName(data);
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}
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public static implicit operator Selector(string value) => new Selector(value);
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}
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private static unsafe IntPtr GetClass(string value)
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{
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int size = System.Text.Encoding.UTF8.GetMaxByteCount(value.Length);
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byte* data = stackalloc byte[size];
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fixed (char* pValue = value)
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{
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System.Text.Encoding.UTF8.GetBytes(pValue, value.Length, data, size);
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}
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return objc_getClass(data);
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}
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private struct NSPoint
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{
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public double X;
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public double Y;
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public NSPoint(double x, double y)
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{
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X = x;
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Y = y;
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}
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}
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private struct NSRect
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{
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public NSPoint Pos;
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public NSPoint Size;
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public NSRect(double x, double y, double width, double height)
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{
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Pos = new NSPoint(x, y);
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Size = new NSPoint(width, height);
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}
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}
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public static IntPtr GetMetalLayer(Display display, Window window, out IntPtr nsView, out UpdateBoundsCallbackDelegate updateBounds)
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{
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nsView = gdk_quartz_window_get_nsview(window.Handle);
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// Create a new CAMetalLayer.
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IntPtr layerClass = GetClass("CAMetalLayer");
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IntPtr metalLayer = IntPtr_objc_msgSend(layerClass, "alloc");
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objc_msgSend(metalLayer, "init");
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// Create a child NSView to render into.
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IntPtr nsViewClass = GetClass("NSView");
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IntPtr child = IntPtr_objc_msgSend(nsViewClass, "alloc");
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objc_msgSend(child, "init", new NSRect());
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// Add it as a child.
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objc_msgSend(nsView, "addSubview:", child);
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// Make its renderer our metal layer.
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objc_msgSend(child, "setWantsLayer:", (byte)1);
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objc_msgSend(child, "setLayer:", metalLayer);
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objc_msgSend(metalLayer, "setContentsScale:", (double)display.GetMonitorAtWindow(window).ScaleFactor);
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// Set the frame position/location.
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updateBounds = (Window window) => {
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window.GetPosition(out int x, out int y);
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int width = window.Width;
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int height = window.Height;
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objc_msgSend(child, "setFrame:", new NSRect(x, y, width, height));
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};
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updateBounds(window);
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return metalLayer;
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}
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[DllImport(LibObjCImport)]
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private static unsafe extern IntPtr sel_registerName(byte* data);
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[DllImport(LibObjCImport)]
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private static unsafe extern IntPtr objc_getClass(byte* data);
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[DllImport(LibObjCImport)]
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private static extern void objc_msgSend(IntPtr receiver, Selector selector);
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[DllImport(LibObjCImport)]
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private static extern void objc_msgSend(IntPtr receiver, Selector selector, byte value);
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[DllImport(LibObjCImport)]
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private static extern void objc_msgSend(IntPtr receiver, Selector selector, IntPtr value);
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[DllImport(LibObjCImport)]
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private static extern void objc_msgSend(IntPtr receiver, Selector selector, NSRect point);
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[DllImport(LibObjCImport)]
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private static extern void objc_msgSend(IntPtr receiver, Selector selector, double value);
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[DllImport(LibObjCImport, EntryPoint = "objc_msgSend")]
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private static extern IntPtr IntPtr_objc_msgSend(IntPtr receiver, Selector selector);
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[DllImport("libgdk-3.0.dylib")]
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private static extern IntPtr gdk_quartz_window_get_nsview(IntPtr gdkWindow);
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}
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}
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