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https://github.com/Ryujinx/Ryujinx.git
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e211c3f00a
* Initial implementation of metal surface across UIs * Fix SDL2 on windows * Update Ryujinx/Ryujinx.csproj Co-authored-by: Mary-nyan <thog@protonmail.com> * Address Feedback Co-authored-by: Mary-nyan <thog@protonmail.com>
127 lines
No EOL
4.1 KiB
C#
127 lines
No EOL
4.1 KiB
C#
using System;
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using System.Runtime.Versioning;
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using System.Runtime.InteropServices;
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using Avalonia;
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namespace Ryujinx.Ava.Ui.Helper
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{
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public delegate void UpdateBoundsCallbackDelegate(Rect rect);
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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(out IntPtr nsView, out UpdateBoundsCallbackDelegate updateBounds)
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{
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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(0, 0, 0, 0));
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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:", Program.DesktopScaleFactor);
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// Ensure the scale factor is up to date.
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updateBounds = (Rect rect) => {
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objc_msgSend(metalLayer, "setContentsScale:", Program.DesktopScaleFactor);
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};
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nsView = child;
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return metalLayer;
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}
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public static void DestroyMetalLayer(IntPtr nsView, IntPtr metalLayer)
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{
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// TODO
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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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}
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} |