Load and check for extensions

deccer · Jan 5, 2023 · 9547d62 · 9547d62
1 parent 7405253
commit 9547d62
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Showing 2 changed files with 20 additions and 0 deletions.
diff --git a/src/EngineKit/Graphics/GraphicsContext.cs b/src/EngineKit/Graphics/GraphicsContext.cs
@@ -19,6 +19,7 @@ internal sealed class GraphicsContext : IGraphicsContext, IInternalGraphicsConte
     private readonly IDictionary<IPipeline, GraphicsPipelineDescriptor> _graphicsPipelineCache;
     private readonly IDictionary<IPipeline, ComputePipelineDescriptor> _computePipelineCache;
     private readonly IDictionary<int, IInputLayout> _inputLayoutCache;
+    private readonly IList<string> _extensions;
     private uint? _currentFramebuffer;
 
     public GraphicsContext(ILogger logger, IFramebufferCache framebufferCache)
@@ -28,6 +29,7 @@ public GraphicsContext(ILogger logger, IFramebufferCache framebufferCache)
         _graphicsPipelineCache = new Dictionary<IPipeline, GraphicsPipelineDescriptor>(16);
         _computePipelineCache = new Dictionary<IPipeline, ComputePipelineDescriptor>(16);
         _inputLayoutCache = new Dictionary<int, IInputLayout>(16);
+        _extensions = new List<string>(512);
     }
 
     public void Dispose()
@@ -517,4 +519,18 @@ public void RemoveFramebuffer(FramebufferRenderDescriptor framebufferRenderDescr
     {
         _framebufferCache.RemoveFramebuffer(framebufferRenderDescriptor);
     }
+
+    public bool IsExtensionSupported(string extensionName)
+    {
+        return _extensions.Contains(extensionName);
+    }
+
+    public void LoadExtensions()
+    {
+        var extensionCount = GL.GetInteger((uint)GL.GetName.NumExtensions);
+        for (var i = 0u; i < extensionCount; i++)
+        {
+            _extensions.Add(GL.GetString(GL.StringName.Extensions, i));
+        }
+    }
 }
diff --git a/src/EngineKit/Graphics/IGraphicsContext.cs b/src/EngineKit/Graphics/IGraphicsContext.cs
@@ -66,4 +66,8 @@ ITexture CreateTexture2D(
     void InsertMemoryBarrier(BarrierMask mask);
 
     void RemoveFramebuffer(FramebufferRenderDescriptor framebufferRenderDescriptor);
+
+    bool IsExtensionSupported(string extensionName);
+
+    void LoadExtensions();
 }