43 lines
1.3 KiB
C#
43 lines
1.3 KiB
C#
using RefreshCS;
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using System;
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using System.IO;
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using System.Runtime.InteropServices;
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namespace MoonWorks.Graphics
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{
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/// <summary>
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/// Shader modules expect input in Refresh bytecode format.
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/// </summary>
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public class ShaderModule : RefreshResource
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{
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protected override Action<IntPtr, IntPtr> QueueDestroyFunction => Refresh.Refresh_QueueDestroyShaderModule;
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public unsafe ShaderModule(GraphicsDevice device, string filePath) : base(device)
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{
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using var stream = new FileStream(filePath, FileMode.Open, FileAccess.Read);
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Handle = CreateFromStream(device, stream);
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}
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public unsafe ShaderModule(GraphicsDevice device, Stream stream) : base(device)
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{
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Handle = CreateFromStream(device, stream);
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}
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private static unsafe IntPtr CreateFromStream(GraphicsDevice device, Stream stream)
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{
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var bytecodeBuffer = NativeMemory.Alloc((nuint) stream.Length);
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var bytecodeSpan = new Span<byte>(bytecodeBuffer, (int) stream.Length);
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stream.ReadExactly(bytecodeSpan);
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Refresh.ShaderModuleCreateInfo shaderModuleCreateInfo;
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shaderModuleCreateInfo.codeSize = (nuint) stream.Length;
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shaderModuleCreateInfo.byteCode = (nint) bytecodeBuffer;
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var shaderModule = Refresh.Refresh_CreateShaderModule(device.Handle, shaderModuleCreateInfo);
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NativeMemory.Free(bytecodeBuffer);
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return shaderModule;
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}
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}
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}
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