private byte[] CompileToSpirv(
VesselShaderDescription shader,
string fileName,
ShaderStages stage)
{
GlslCompileOptions glslOptions = VesselShaderUtil.GetOptions(shader);
string glsl = VesselShaderUtil.LoadGlsl(fileName);
SpirvCompilationResult result = SpirvCompilation.CompileGlslToSpirv(
glsl,
fileName,
stage,
glslOptions);
return(result.SpirvBytes);
}
private static void CompileAll(string inputDirectory, string outputDirectory)
{
Directory.CreateDirectory(outputDirectory);
IEnumerable <string> files = Directory.EnumerateFiles(inputDirectory);
var shaderSets =
from path in files
let vert = path.EndsWith("vert")
let frag = path.EndsWith("frag")
where vert || frag
let name = Path.GetFileNameWithoutExtension(path)
group(path, vert, frag) by name into g
where g.Count() == 2
select new
{
Name = g.Key,
Vertex = g.FirstOrDefault(x => x.vert).path,
Fragment = g.FirstOrDefault(x => x.frag).path,
};
foreach (var shaderSet in shaderSets)
{
string outputBase = Path.Combine(outputDirectory, shaderSet.Name);
byte[] vs = File.ReadAllBytes(shaderSet.Vertex);
byte[] fs = File.ReadAllBytes(shaderSet.Fragment);
string vsSource = Encoding.UTF8.GetString(vs);
string fsSource = Encoding.UTF8.GetString(fs);
var debugCompileOptions = new GlslCompileOptions(debug: true);
var vsSpvDebugOutput = SpirvCompilation.CompileGlslToSpirv(
vsSource, string.Empty, ShaderStages.Vertex,
debugCompileOptions);
var fsSpvDebugOutput = SpirvCompilation.CompileGlslToSpirv(
fsSource, string.Empty, ShaderStages.Fragment,
debugCompileOptions);
var releaseCompileOptions = new GlslCompileOptions(debug: false);
var vsSpvReleaseOutput = SpirvCompilation.CompileGlslToSpirv(
vsSource, string.Empty, ShaderStages.Vertex,
releaseCompileOptions);
var fsSpvReleaseOutput = SpirvCompilation.CompileGlslToSpirv(
fsSource, string.Empty, ShaderStages.Fragment,
releaseCompileOptions);
File.WriteAllBytes(outputBase + "-vertex.450.glsl.spv", vsSpvReleaseOutput.SpirvBytes);
File.WriteAllBytes(outputBase + "-fragment.450.glsl.spv", fsSpvDebugOutput.SpirvBytes);
var glCompileOptions = new CrossCompileOptions(fixClipSpaceZ: true, invertVertexOutputY: false);
var glslResult = SpirvCompilation.CompileVertexFragment(
vsSpvDebugOutput.SpirvBytes,
fsSpvDebugOutput.SpirvBytes,
CrossCompileTarget.GLSL,
glCompileOptions);
File.WriteAllText(outputBase + "-vertex.330.glsl", glslResult.VertexShader);
File.WriteAllText(outputBase + "-fragment.330.glsl", glslResult.FragmentShader);
var esslResult = SpirvCompilation.CompileVertexFragment(
vsSpvDebugOutput.SpirvBytes,
fsSpvDebugOutput.SpirvBytes,
CrossCompileTarget.ESSL,
glCompileOptions);
File.WriteAllText(outputBase + "-vertex.300.glsles", glslResult.VertexShader);
File.WriteAllText(outputBase + "-fragment.300.glsles", glslResult.FragmentShader);
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
var hlslDebugOutput = SpirvCompilation.CompileVertexFragment(
vsSpvDebugOutput.SpirvBytes,
fsSpvDebugOutput.SpirvBytes,
CrossCompileTarget.HLSL);
File.WriteAllText(outputBase + "-vertex.hlsl", hlslDebugOutput.VertexShader);
File.WriteAllText(outputBase + "-fragment.hlsl", hlslDebugOutput.FragmentShader);
var hlslReleaseOutput = SpirvCompilation.CompileVertexFragment(
vsSpvReleaseOutput.SpirvBytes,
fsSpvReleaseOutput.SpirvBytes,
CrossCompileTarget.HLSL);
byte[] vertBytes = Encoding.UTF8.GetBytes(hlslReleaseOutput.VertexShader);
byte[] fragBytes = Encoding.UTF8.GetBytes(hlslReleaseOutput.FragmentShader);
File.WriteAllBytes(outputBase + "-vertex.hlsl.bytes", CompileHlsl(ShaderStages.Vertex, vertBytes));
File.WriteAllBytes(outputBase + "-fragment.hlsl.bytes", CompileHlsl(ShaderStages.Fragment, fragBytes));
}
}
}
