daily uodate on 20231208 by nitload youmu, preparation for multi thread rendering

源代码/StgSharp/Control/IO/GLIO.cs

@@ -1,5 +1,6 @@
 using StgSharp.Controlling;
 using StgSharp.Graphics;
+using StgSharp.Math;
 using System;
 using System.Diagnostics.CodeAnalysis;
 using System.Runtime.InteropServices;
@@ -31,6 +32,9 @@ namespace StgSharp
             CallingConvention = CallingConvention.Cdecl)]
         internal static extern unsafe IntPtr InternalReadLog();
 
+        [DllImport(SSC_libname, EntryPoint = "loadImageData",
+            CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+        internal static extern unsafe void InternalLoadImage(string fileName, Image.ImageInfo* output, ImageLoader loader);
 
         #endregion
 
@@ -41,6 +45,9 @@ namespace StgSharp
 
 namespace StgSharp.Graphics
 {
+    [UnmanagedFunctionPointer(CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public delegate IntPtr ImageLoader(string name, ref int width, ref int height, ref int definedChannel, int desiredChannel);
+
     [StructLayout(LayoutKind.Sequential)]
     public unsafe struct GLcontextIO
     {
@@ -2590,7 +2597,6 @@ namespace StgSharp.Graphics
 
         public GLcontextIO()
         {
-
         }
     }