public void EmptyShaderReflectionTest()
{
byte[] vertexByteCode;
byte[] framentByteCode;
{
var vertexShaderMain = new Function(Spv.FunctionControl.CreateNone(), new TypeFunction()
{
ReturnType = SpirvTypeBase.Void
}, "main")
.SetUp(_ => _
.ThenLabel()
.ThenReturn()
);
var shader = new ShaderReflection()
.WithCapability(Capability.Shader())
.WithExtInstImport("GLSL.std.450")
.WithMemoryModel(AddressingModel.Logical(), MemoryModel.GLSL450())
.WithEntryPoint(ExecutionModel.Vertex(), vertexShaderMain)
.BuildShader();
vertexByteCode = shader.Build();
}
{
var fragmentShaderMain = new Function(Spv.FunctionControl.CreateNone(), new TypeFunction()
{
ReturnType = SpirvTypeBase.Void
}, "main")
.SetUp(_ => _
.ThenLabel()
.ThenReturn()
);
var shader = new ShaderReflection()
.WithCapability(Capability.Shader())
.WithExtInstImport("GLSL.std.450")
.WithMemoryModel(AddressingModel.Logical(), MemoryModel.GLSL450())
.WithEntryPoint(ExecutionModel.Fragment(), fragmentShaderMain)
.BuildShader();
framentByteCode = shader
.Build();
}
var shaders = ResourceFactory.CreateFromSpirv(
new ShaderDescription(ShaderStages.Vertex, vertexByteCode, "main"),
new ShaderDescription(ShaderStages.Fragment, framentByteCode, "main"));
var readRenderTargetPixel = RenderQuad(shaders);
Assert.AreEqual(new RgbaByte(0, 0, 0, 255), readRenderTargetPixel);
}
public void GreenQuadReflectionTest()
{
byte[] vertexByteCode;
byte[] framentByteCode;
{
var const_1f = new Constant(-1.0f);
var const1f = new Constant(1.0f);
var const0f = new Constant(0.0f);
var const0i = new Constant(0);
var arrayType = new TypeArray(SpirvTypeBase.Vec4, 4);
var a = new ConstantComposite(SpirvTypeBase.Vec4, const_1f, const1f, const0f, const1f);
var b = new ConstantComposite(SpirvTypeBase.Vec4, const1f, const1f, const1f, const1f);
var c = new ConstantComposite(SpirvTypeBase.Vec4, const_1f, const_1f, const0f, const1f);
var d = new ConstantComposite(SpirvTypeBase.Vec4, const1f, const_1f, const1f, const1f);
var positions = new ConstantComposite(arrayType, a, b, c, d);
var clipArrayType = new TypeArray(SpirvTypeBase.Float, 1);
var gl_PerVertex = new TypeStruct("gl_PerVertex",
new TypeStructureField(SpirvTypeBase.Vec4, "gl_Position")
.WithDecoration(Decoration.BuiltIn(BuiltIn.Position())),
new TypeStructureField(SpirvTypeBase.Float, "gl_PointSize")
.WithDecoration(Decoration.BuiltIn(BuiltIn.PointSize())),
new TypeStructureField(clipArrayType, "gl_ClipDistance")
.WithDecoration(Decoration.BuiltIn(BuiltIn.ClipDistance())),
new TypeStructureField(clipArrayType, "gl_CullDistance")
.WithDecoration(Decoration.BuiltIn(BuiltIn.CullDistance()))
).WithDecoration(Decoration.Block());
var outputVar = new Variable(gl_PerVertex.MakePointer(StorageClass.Output()), StorageClass.Output(), null, "");
var localVar = new Variable(
arrayType.MakePointer(StorageClass.Function()),
StorageClass.Function(), null, "indexable");
Node positionPointer = new AccessChain(SpirvTypeBase.Vec4.MakePointer(StorageClass.Output()), outputVar, new[] { const0i });
var glVertexIndex = Variable.gl_VertexIndex();
Node position = new Load(SpirvTypeBase.Vec4,
new AccessChain(SpirvTypeBase.Vec4.MakePointer(StorageClass.Function()), localVar, new Node[]
{
new Load(SpirvTypeBase.Int, glVertexIndex, null)
}), null);
var vertexShaderMain = new Function(Spv.FunctionControl.Enumerant.None, new TypeFunction()
{
ReturnType = SpirvTypeBase.Void
}, "main")
.SetUp(_ => _
.ThenLabel()
.ThenStore(localVar, positions, null)
.ThenStore(positionPointer, position, null)
.ThenReturn()
);
var reflection = new ShaderReflection()
.WithCapability(Capability.Shader())
.WithExtInstImport("GLSL.std.450")
.WithMemoryModel(AddressingModel.Logical(), MemoryModel.GLSL450())
.WithEntryPoint(ExecutionModel.Vertex(), vertexShaderMain, "main");
var shader = reflection
.BuildShader();
vertexByteCode = shader.Build();
Console.WriteLine("-----------------------");
Node node = reflection.EntryPointInstructions.First().Value;
while (node != null)
{
Console.WriteLine($".Then(new {node})");
node = node.GetNext();
}
//var vertexSource = @"#version 450
//#extension GL_KHR_vulkan_glsl : enable
//const vec4 QuadInfos[4] =
//{
// vec4(-1, 1, 0, 1),
// vec4(1, 1, 1, 1),
// vec4(-1, -1, 0, 1),
// vec4(1, -1, 1, 1),
//};
//void main()
//{
// gl_Position = QuadInfos[gl_VertexIndex];
//}";
//vertexByteCode = ShaderTestBase.CompileToBytecode(vertexSource, ShaderStages.Vertex, true, true);
}
{
var const0f = new Constant(0.0f);
var const1f = new Constant(1.0f);
var redColor = new ConstantComposite(SpirvTypeBase.Vec4, const0f, const1f, const0f, const1f);
var v = new Variable(SpirvTypeBase.Vec4.MakePointer(StorageClass.Output()), StorageClass.Output(), null, "fsout_Color0")
{
Location = 0
};
var fragmentShaderMain = new Function(Spv.FunctionControl.Enumerant.None, new TypeFunction(SpirvTypeBase.Void), "main")
.SetUp(_ => _
.ThenLabel()
.ThenStore(v, redColor, null)
.ThenReturn()
);
var reflection = new ShaderReflection()
.WithCapability(Capability.Shader())
.WithExtInstImport("GLSL.std.450")
.WithMemoryModel(AddressingModel.Logical(), MemoryModel.GLSL450())
.WithEntryPoint(ExecutionModel.Fragment(), fragmentShaderMain, "main")
.WithExecutionMode(fragmentShaderMain, ExecutionMode.OriginUpperLeft());
var shader = reflection
.BuildShader();
framentByteCode = shader
.Build();
Console.WriteLine("-----------------------");
Node node = reflection.EntryPointInstructions.First().Value;
while (node != null)
{
Console.WriteLine($".Then(new {node})");
node = node.GetNext();
}
// var fragmentSource = @"#version 450
//layout(location = 0) out vec4 fsout_Color0;
//void main()
//{
// fsout_Color0 = vec4(0,1,0,1);
//}";
// framentByteCode = ShaderTestBase.CompileToBytecode(fragmentSource, ShaderStages.Fragment, true, true);
}
{
var glsl = Veldrid.SPIRV.SpirvCompilation.CompileVertexFragment(vertexByteCode, framentByteCode,
CrossCompileTarget.GLSL);
Console.WriteLine(glsl.VertexShader);
Console.WriteLine(glsl.FragmentShader);
}
var shaders = ResourceFactory.CreateFromSpirv(
new ShaderDescription(ShaderStages.Vertex, vertexByteCode, "main"),
new ShaderDescription(ShaderStages.Fragment, framentByteCode, "main"));
var readRenderTargetPixel = RenderQuad(shaders);
Assert.AreEqual(new RgbaByte(0, 255, 0, 255), readRenderTargetPixel);
}