void Initialize()
{
// 1) We create vertex shader first.
{
vertexShader = new ShaderCode(BindingStage.VertexShader);
vertexShader.InputOperation.AddInput(PinComponent.Position, PinFormat.Floatx2);
// We now extend position
ExpandOperation expandPositionOp = new ExpandOperation(PinFormat.Floatx4, ExpandType.AddOnesAtW);
expandPositionOp.BindInputs(vertexShader.InputOperation.PinAsOutput(PinComponent.Position));
Pin position = expandPositionOp.Outputs[0];
// We now output position.
vertexShader.OutputOperation.AddComponentAndLink(PinComponent.Position, position);
}
vertexShader.Immutable = true;
// 2) We create pixel shader.
{
pixelShader = new ShaderCode(BindingStage.PixelShader);
pixelShader.InputOperation.AddInput(PinComponent.Position, PinFormat.Floatx2);
ConstantOperation interfaceOp = pixelShader.CreateConstant("Composite", PinFormat.Interface, Pin.DynamicArray);
// We use the compositing operation.
CompositingOperation op = new CompositingOperation();
op.BindInputs(pixelShader.InputOperation.PinAsOutput(PinComponent.Position),
interfaceOp.Outputs[0]);
// Compositing is bound to output.
pixelShader.OutputOperation.AddComponentAndLink(PinComponent.Colour, op.Outputs[0]);
}
pixelShader.Immutable = true;
// 3) Initialize states.
// Depth-stencil state.
depthStencilState = new DepthStencilState();
depthStencilState.DepthTestEnabled = false;
depthStencilState.DepthWriteEnabled = false;
// Blend state (no blending default).
blendState = new BlendState();
// Rasterization state.
rasterizationState = new RasterizationState();
rasterizationState.FrontFacing = Facing.CCW;
rasterizationState.CullMode = CullMode.None;
rasterizationState.FillMode = FillMode.Solid;
rasterizationState.MultiSamplingEnabled = true;
// We intern all states.
depthStencilState = StateManager.Intern(depthStencilState);
blendState = StateManager.Intern(blendState);
rasterizationState = StateManager.Intern(rasterizationState);
}
public void DAGUsageCases2()
{
// We first initialize our shader.
ShaderCode code = new ShaderCode(BindingStage.VertexShader);
{
// We write a simple Tranform code:
code.InputOperation.AddInput(PinComponent.Position, PinFormat.Floatx3);
Pin positon = code.InputOperation.PinAsOutput(PinComponent.Position);
// We first need to expand our position to float4 (adding 1 at the end).
ExpandOperation expand = new ExpandOperation(PinFormat.Floatx4, ExpandType.AddOnesAtW);
expand.BindInputs(positon);
Pin expPosition = expand.Outputs[0];
// We now create constant transform matrix.
ConstantOperation mvpConstant = code.CreateConstant("MVP", PinFormat.Float4x4);
Pin MVP = mvpConstant.Outputs[0];
// We multiply matrix and pin.
MultiplyOperation mul = new MultiplyOperation();
mul.BindInputs(MVP, expPosition);
Pin transPosition = mul.Outputs[0];
// We just bind transformed position to output.
code.OutputOperation.AddComponentAndLink(PinComponent.Position, transPosition);
}
// We create constant buffer manually.
ConstantBufferLayoutBuilder builder = new ConstantBufferLayoutBuilder();
builder.AppendElement("MVP", PinFormat.Float4x4, Pin.NotArray);
ConstantBufferLayout layout = builder.CreateLayout();
// We now fill the data.
FixedShaderParameters parameters = code.FixedParameters;
parameters.AppendLayout(layout);
if (!parameters.IsDefined)
{
throw new Exception();
}
GraphicsDevice device = InitializeDevice();
// We have all parameters defined, compile the shader.
VShader shader = code.Compile(device, parameters) as VShader;
// Shader expects data in constant buffers.
TypelessBuffer buffer = new TypelessBuffer(Usage.Default, BufferUsage.ConstantBuffer, CPUAccess.Write, GraphicsLocality.DeviceOrSystemMemory, 4 * 4 * 4);
ConstantBufferView constantBuffer = buffer.CreateConstantBuffer(layout);
// We fill the buffer.
constantBuffer.Map(MapOptions.Write);
constantBuffer.SetConstant("MVP", Math.Matrix.Matrix4x4f.Identity);
constantBuffer.UnMap();
}
/// <summary>
/// Creates an interface binder.
/// </summary>
/// <param name="name"></param>
/// <returns></returns>
public InterfaceBinder CreateInterface([NotEmpty] string name)
{
ConstantOperation c = dag.CreateConstant(name, PinFormat.Interface, Pin.NotArray, null);
return(new InterfaceBinder(c.Outputs[0], this));
}
public unsafe void DAGUsageCases()
{
// We first initialize our shader.
ShaderCode code = new ShaderCode(BindingStage.VertexShader);
{
// We write a simple Tranform code:
code.InputOperation.AddInput(PinComponent.Position, PinFormat.Floatx3);
Pin positon = code.InputOperation.PinAsOutput(PinComponent.Position);
// We first need to expand our position to float4 (adding 1 at the end).
ExpandOperation expand = new ExpandOperation(PinFormat.Floatx4, ExpandType.AddOnesAtW);
expand.BindInputs(positon);
Pin expPosition = expand.Outputs[0];
// We now create constant transform matrix.
ConstantOperation mvpConstant = code.CreateConstant("MVP", PinFormat.Float4x4);
Pin MVP = mvpConstant.Outputs[0];
// We multiply matrix and pin.
MultiplyOperation mul = new MultiplyOperation();
mul.BindInputs(MVP, expPosition);
Pin transPosition = mul.Outputs[0];
// We just bind transformed position to output.
code.OutputOperation.AddComponentAndLink(PinComponent.Position, transPosition);
}
// Immutate it.
code.Immutable = true;
// We create constant buffer manually.
ConstantBufferLayoutBuilder builder = new ConstantBufferLayoutBuilder();
builder.AppendElement("MVP", PinFormat.Float4x4, Pin.NotArray);
ConstantBufferLayout layout = builder.CreateLayout();
// We now fill the data.
FixedShaderParameters parameters = code.FixedParameters;
parameters.AppendLayout(layout);
if (!parameters.IsDefined)
{
throw new Exception();
}
using (GraphicsDevice device = InitializeDevice())
{
// We create shaders.
// We have all parameters defined, compile the shader.
VShader shader = code.Compile(device, parameters) as VShader;
// Shader expects data in constant buffers.
TypelessBuffer tbuffer = new TypelessBuffer(Usage.Dynamic, BufferUsage.ConstantBuffer, CPUAccess.Write, GraphicsLocality.DeviceOrSystemMemory, 4 * 4 * 4);
ConstantBufferView constantBuffer = tbuffer.CreateConstantBuffer(layout);
// We fill the buffer.
constantBuffer.Map(MapOptions.Write);
constantBuffer.SetConstant("MVP", new Math.Matrix.Matrix4x4f(1, 0, 0, 0,
0, 1, 0, 0,
0, 0, 1, 0,
-0.5f, -0.5f, 0, 1));
constantBuffer.UnMap();
PShader pshader;
VShader vshader = shader;
using (ShaderCompiler compiler = device.CreateShaderCompiler())
{
// And pixel shader.
compiler.Begin(BindingStage.PixelShader);
ShaderCompiler.Operand colour = compiler.CreateFixed(PinFormat.Floatx4, Pin.NotArray, new Vector4f(1, 0, 0, 1));
compiler.Output(colour, PinComponent.RenderTarget0);
pshader = compiler.End(null) as PShader;
}
// We create triangles.
Geometry geometry = new Geometry();
TypelessBuffer buffer = new TypelessBuffer(Usage.Static,
BufferUsage.VertexBuffer, CPUAccess.None, GraphicsLocality.DeviceOrSystemMemory, 4 * 4 * 3);
byte[] d = buffer.Map(MapOptions.Read);
fixed(byte *p = d)
{
float *data = (float *)p;
// Vertex 0:
data[0] = -0.5f; data[1] = -0.5f; data[2] = 0.0f; data[3] = 1.0f;
// Vertex 1:
data[4] = 0.5f; data[5] = -0.5f; data[6] = 0.0f; data[7] = 1.0f;
// Vertex 2:
data[8] = 0.0f; data[9] = 0.5f; data[10] = 0.0f; data[11] = 1.0f;
}
buffer.UnMap();
// Create vertex buffer and view.
VertexBufferView vbuffer = buffer.CreateVertexBuffer(VertexFormat.Parse("P.Fx4"));
// We construct geometry.
geometry[0] = vbuffer;
geometry.Topology = Topology.Triangle;
// Blend state.
BlendState blendState = new BlendState();
blendState[0] = false;
blendState = StateManager.Intern(blendState);
RasterizationState rastState = new RasterizationState();
rastState.CullMode = CullMode.None;
rastState.FillMode = FillMode.Solid;
rastState = StateManager.Intern(rastState);
DepthStencilState depthState = new DepthStencilState();
depthState.DepthTestEnabled = false;
depthState.DepthWriteEnabled = false;
depthState = StateManager.Intern(depthState);
// Enter rendering loop.
bool isClosed = false;
window.Closed += delegate(Window w)
{
isClosed = true;
};
for (uint i = 0; i < 1000; i++)
{
window.DoEvents();
if (!isClosed)
{
SwapChain chain = device.SwapChain;
device.Enter();
try
{
// We just clear.
device.Clear(chain, Colour.Black);
// Set blend/rast.
device.SetBlendState(blendState, Colour.White, 0xFFFFFFFF);
device.RasterizationState = rastState;
device.SetDepthStencilState(depthState, 0);
// Sets states.
device.SetVertexShader(vshader, geometry, null, null, new ConstantBufferView[] { constantBuffer });
device.SetPixelShader(pshader, null, null, null, new RenderTargetView[] { chain }, null);
device.Viewport = new Region2i(0, 0, (int)chain.Width, (int)chain.Height);
// Render.
device.Draw(0, 3);
}
finally
{
device.Exit();
}
chain.Present();
//Thread.Sleep(10);
Console.WriteLine(device.DevicePerformance.CurrentFPS);
}
}
// Dispose all.
vshader.Dispose();
pshader.Dispose();
geometry.Dispose();
vbuffer.Dispose();
buffer.Dispose();
}
}
void Initialize()
{
// Initialize shader code.
vertexShaderCode = new ShaderCode(BindingStage.VertexShader);
{
// We register inputs.
vertexShaderCode.InputOperation.AddInput(PinComponent.Position, PinFormat.Floatx2); //< Position.
vertexShaderCode.InputOperation.AddInput(PinComponent.TexCoord0, PinFormat.Floatx2); //< Texture coordinate.
vertexShaderCode.InputOperation.AddInput(PinComponent.User0, PinFormat.Floatx4); //< Custom attribute 0.
vertexShaderCode.InputOperation.AddInput(PinComponent.User1, PinFormat.UInteger); //< Fill ID.
// Position transform array (dynamically sized).
ConstantOperation positionTransformOp = vertexShaderCode.CreateConstant("PositionTransform",
PinFormat.Float4x4, Pin.NotArray, null);
// Texture transform array (dynamically sized).
ConstantOperation textureTransformOp = vertexShaderCode.CreateConstant("TextureTransform",
PinFormat.Float4x4, Pin.NotArray, null);
// We expand the position.
ExpandOperation expandPos = new ExpandOperation(PinFormat.Floatx4, ExpandType.AddOnesAtW);
expandPos.BindInputs(vertexShaderCode.InputOperation.PinAsOutput(PinComponent.Position));
// We transform position by matrix.
MultiplyOperation multiply = new MultiplyOperation();
multiply.BindInputs(positionTransformOp.Outputs[0], expandPos.Outputs[0]);
Pin position = multiply.Outputs[0];
// We expand texture coordinate.
ExpandOperation expandTex = new ExpandOperation(PinFormat.Floatx4, ExpandType.AddOnesAtW);
expandTex.BindInputs(vertexShaderCode.InputOperation.PinAsOutput(PinComponent.TexCoord0));
// We transform by matrix.
MultiplyOperation multiply2 = new MultiplyOperation();
multiply2.BindInputs(textureTransformOp.Outputs[0], expandTex.Outputs[0]);
Pin texcoord = multiply2.Outputs[0];
// We register outputs.
vertexShaderCode.OutputOperation.AddComponentAndLink(PinComponent.Position, position);
vertexShaderCode.OutputOperation.AddComponentAndLink(PinComponent.TexCoord0, texcoord);
vertexShaderCode.OutputOperation.AddComponentAndLink(PinComponent.User0,
vertexShaderCode.InputOperation.PinAsOutput(PinComponent.User0));
vertexShaderCode.OutputOperation.AddComponentAndLink(PinComponent.User1,
vertexShaderCode.InputOperation.PinAsOutput(PinComponent.User1));
}
vertexShaderCode.Immutable = true;
pixelShaderCode = new ShaderCode(BindingStage.PixelShader);
{
// We register inputs.
pixelShaderCode.InputOperation.AddInput(PinComponent.Position, PinFormat.Floatx4); //< Position.
pixelShaderCode.InputOperation.AddInput(PinComponent.TexCoord0, PinFormat.Floatx4); //< Texture coordinate.
pixelShaderCode.InputOperation.AddInput(PinComponent.User0, PinFormat.Floatx4); //< Custom attribute 0.
pixelShaderCode.InputOperation.AddInput(PinComponent.User1, PinFormat.UInteger); //< Fill ID.
// We resgister interface constants.
ConstantOperation interfaceConstant = pixelShaderCode.CreateConstant("Fills", PinFormat.Interface,
Pin.DynamicArray, null);
// TODO: distance from border must be "evaluated".
// We convert position/tex coordinate.
SwizzleOperation swizzlePos = new SwizzleOperation(SwizzleMask.XY);
swizzlePos.BindInputs(pixelShaderCode.InputOperation.PinAsOutput(PinComponent.Position));
Pin position = swizzlePos.Outputs[0];
SwizzleOperation swizzleTex = new SwizzleOperation(SwizzleMask.XY);
swizzleTex.BindInputs(pixelShaderCode.InputOperation.PinAsOutput(PinComponent.TexCoord0));
Pin texcoord = swizzleTex.Outputs[0];
// We now add the fill operation.
FillElementOperation fillOperation = new FillElementOperation();
fillOperation.BindInputs(position, texcoord, pixelShaderCode.InputOperation.PinAsOutput(PinComponent.User0),
pixelShaderCode.InputOperation.PinAsOutput(PinComponent.User1), interfaceConstant.Outputs[0]);
// The output is colour.
pixelShaderCode.OutputOperation.AddComponentAndLink(PinComponent.RenderTarget0, fillOperation.Outputs[0]);
}
pixelShaderCode.Immutable = true;
// Depth-stencil state.
depthStencilState = new DepthStencilState();
depthStencilState.DepthTestEnabled = false;
depthStencilState.DepthWriteEnabled = false;
// Blend state
blendState = new BlendState();
blendState.AlphaBlendDestination = BlendOperand.One;
blendState.AlphaBlendSource = BlendOperand.Zero;
blendState.AlphaBlendOperation = BlendOperation.Add;
blendState.BlendDestination = BlendOperand.SrcAlphaInverse;
blendState.BlendSource = BlendOperand.SrcAlpha;
blendState.BlendOperation = BlendOperation.Add;
// We enable blending.
blendState[0] = true;
// Rasterization state.
rasterizationState = new RasterizationState();
rasterizationState.FrontFacing = Facing.CCW;
rasterizationState.CullMode = CullMode.None;
rasterizationState.FillMode = FillMode.Solid;
rasterizationState.MultiSamplingEnabled = true; //< May change that in future.
// We intern all states.
depthStencilState = StateManager.Intern(depthStencilState);
blendState = StateManager.Intern(blendState);
rasterizationState = StateManager.Intern(rasterizationState);
}
void Initialize()
{
// 1) We create vertex shader first.
{
vertexShader = new ShaderCode(BindingStage.VertexShader);
vertexShader.InputOperation.AddInput(PinComponent.Position, PinFormat.Floatx2);
// We now extend position
ExpandOperation expandPositionOp = new ExpandOperation(PinFormat.Floatx4, ExpandType.AddOnesAtW);
expandPositionOp.BindInputs(vertexShader.InputOperation.PinAsOutput(PinComponent.Position));
Pin position = expandPositionOp.Outputs[0];
// We now output position.
vertexShader.OutputOperation.AddComponentAndLink(PinComponent.Position, position);
}
vertexShader.Immutable = true;
// 2) We create pixel shader.
{
pixelShader = new ShaderCode(BindingStage.PixelShader);
pixelShader.InputOperation.AddInput(PinComponent.Position, PinFormat.Floatx4);
// We first use only XY.
SwizzleOperation swizzleOp = new SwizzleOperation(SwizzleMask.XY);
swizzleOp.BindInputs(pixelShader.InputOperation.PinAsOutput(PinComponent.Position));
ConstantOperation constant = vertexShader.CreateConstant("Offset", PinFormat.Floatx2);
// We first offset.
SubstractOperation subOp = new SubstractOperation();
subOp.BindInputs(swizzleOp.Outputs[0], constant.Outputs[0]);
ConstantOperation interfaceOp = pixelShader.CreateConstant("Composite", PinFormat.Interface, Pin.DynamicArray);
// We use the compositing operation.
CompositingOperation op = new CompositingOperation();
op.BindInputs(subOp.Outputs[0],
interfaceOp.Outputs[0]);
// Compositing is bound to output.
pixelShader.OutputOperation.AddComponentAndLink(PinComponent.RenderTarget0, op.Outputs[0]);
}
pixelShader.Immutable = true;
// 3) Initialize states.
// Depth-stencil state.
depthStencilState = new DepthStencilState();
depthStencilState.DepthTestEnabled = false;
depthStencilState.DepthWriteEnabled = false;
// Blend state (no blending default).
blendState = new BlendState();
// Rasterization state.
rasterizationState = new RasterizationState();
rasterizationState.FrontFacing = Facing.CCW;
rasterizationState.CullMode = CullMode.None;
rasterizationState.FillMode = FillMode.Solid;
rasterizationState.MultiSamplingEnabled = true;
// We intern all states.
depthStencilState = StateManager.Intern(depthStencilState);
blendState = StateManager.Intern(blendState);
rasterizationState = StateManager.Intern(rasterizationState);
// 4) We create geometry.
alignedQuad = new Geometry(device);
alignedQuad.AssociateBuffers = true;
{
// We create vertex buffer
VertexBufferView vertexBuffer = VertexBufferView.Create(device, vertexFormat, Usage.Default,
CPUAccess.None, GraphicsLocality.DeviceOrSystemMemory,
new Vector2f(-1.0f, -1.0f), new Vector2f(1.0f, -1.0f),
new Vector2f(1.0f, 1.0f), new Vector2f(-1.0f, -1.0f),
new Vector2f(1.0f, 1.0f), new Vector2f(-1.0f, 1.0f));
alignedQuad[0] = vertexBuffer;
}
// 5) We create pixel typeless buffer for constant buffer.
pixelTypelessConstantBuffer = new TypelessBuffer(Usage.Dynamic, BufferUsage.ConstantBuffer,
CPUAccess.Write, GraphicsLocality.DeviceOrSystemMemory, ConstantBufferView.MaxSize);
}