91 lines
2.8 KiB
C#
91 lines
2.8 KiB
C#
|
using RefreshCS;
|
|||
|
|
using System;
|
|||
|
|
using System.IO;
|
|||
|
|
using System.Runtime.InteropServices;
|
|||
|
|
|
|||
|
|
namespace Nerfed.Runtime.Graphics;
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Shaders are used to create graphics pipelines.
|
|||
|
|
/// Graphics pipelines take a vertex shader and a fragment shader.
|
|||
|
|
/// </summary>
|
|||
|
|
public class Shader : RefreshResource
|
|||
|
|
{
|
|||
|
|
protected override Action<IntPtr, IntPtr> ReleaseFunction => Refresh.Refresh_ReleaseShader;
|
|||
|
|
|
|||
|
|
public uint SamplerCount { get; }
|
|||
|
|
public uint StorageTextureCount { get; }
|
|||
|
|
public uint StorageBufferCount { get; }
|
|||
|
|
public uint UniformBufferCount { get; }
|
|||
|
|
|
|||
|
|
public unsafe Shader(
|
|||
|
|
GraphicsDevice device,
|
|||
|
|
string filePath,
|
|||
|
|
string entryPointName,
|
|||
|
|
in ShaderCreateInfo shaderCreateInfo
|
|||
|
|
) : base(device)
|
|||
|
|
{
|
|||
|
|
using FileStream stream = new FileStream(filePath, FileMode.Open, FileAccess.Read);
|
|||
|
|
Handle = CreateFromStream(
|
|||
|
|
device,
|
|||
|
|
stream,
|
|||
|
|
entryPointName,
|
|||
|
|
shaderCreateInfo
|
|||
|
|
);
|
|||
|
|
|
|||
|
|
SamplerCount = shaderCreateInfo.SamplerCount;
|
|||
|
|
StorageTextureCount = shaderCreateInfo.StorageTextureCount;
|
|||
|
|
StorageBufferCount = shaderCreateInfo.StorageBufferCount;
|
|||
|
|
UniformBufferCount = shaderCreateInfo.UniformBufferCount;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public unsafe Shader(
|
|||
|
|
GraphicsDevice device,
|
|||
|
|
Stream stream,
|
|||
|
|
string entryPointName,
|
|||
|
|
in ShaderCreateInfo shaderCreateInfo
|
|||
|
|
) : base(device)
|
|||
|
|
{
|
|||
|
|
Handle = CreateFromStream(
|
|||
|
|
device,
|
|||
|
|
stream,
|
|||
|
|
entryPointName,
|
|||
|
|
shaderCreateInfo
|
|||
|
|
);
|
|||
|
|
|
|||
|
|
SamplerCount = shaderCreateInfo.SamplerCount;
|
|||
|
|
StorageTextureCount = shaderCreateInfo.StorageTextureCount;
|
|||
|
|
StorageBufferCount = shaderCreateInfo.StorageBufferCount;
|
|||
|
|
UniformBufferCount = shaderCreateInfo.UniformBufferCount;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private static unsafe IntPtr CreateFromStream(
|
|||
|
|
GraphicsDevice device,
|
|||
|
|
Stream stream,
|
|||
|
|
string entryPointName,
|
|||
|
|
in ShaderCreateInfo shaderCreateInfo
|
|||
|
|
) {
|
|||
|
|
void* bytecodeBuffer = NativeMemory.Alloc((nuint) stream.Length);
|
|||
|
|
Span<byte> bytecodeSpan = new Span<byte>(bytecodeBuffer, (int) stream.Length);
|
|||
|
|
stream.ReadExactly(bytecodeSpan);
|
|||
|
|
|
|||
|
|
Refresh.ShaderCreateInfo refreshShaderCreateInfo;
|
|||
|
|
refreshShaderCreateInfo.CodeSize = (nuint) stream.Length;
|
|||
|
|
refreshShaderCreateInfo.Code = (byte*) bytecodeBuffer;
|
|||
|
|
refreshShaderCreateInfo.EntryPointName = entryPointName;
|
|||
|
|
refreshShaderCreateInfo.Stage = (Refresh.ShaderStage) shaderCreateInfo.ShaderStage;
|
|||
|
|
refreshShaderCreateInfo.Format = (Refresh.ShaderFormat) shaderCreateInfo.ShaderFormat;
|
|||
|
|
refreshShaderCreateInfo.SamplerCount = shaderCreateInfo.SamplerCount;
|
|||
|
|
refreshShaderCreateInfo.StorageTextureCount = shaderCreateInfo.StorageTextureCount;
|
|||
|
|
refreshShaderCreateInfo.StorageBufferCount = shaderCreateInfo.StorageBufferCount;
|
|||
|
|
refreshShaderCreateInfo.UniformBufferCount = shaderCreateInfo.UniformBufferCount;
|
|||
|
|
|
|||
|
|
IntPtr shaderModule = Refresh.Refresh_CreateShader(
|
|||
|
|
device.Handle,
|
|||
|
|
refreshShaderCreateInfo
|
|||
|
|
);
|
|||
|
|
|
|||
|
|
NativeMemory.Free(bytecodeBuffer);
|
|||
|
|
return shaderModule;
|
|||
|
|
}
|
|||
|
|
}
|