/// <summary>
///
/// </summary>
/// <param name="name"></param>
/// <param name="interface"></param>
/// <param name="parameters"></param>
public static void FillInterfaceConstants(string name, IInterface @interface,
ConstantBufferView constantBuffer, params object[] parameters)
{
string prefix = name + ".";
ParameterDescription[] descs = @interface.AdditionalParameters;
// We now go through all elements and append them.
for (int j = 0; j < parameters.Length; j++)
{
if (!descs[j].IsFixed)
{
constantBuffer.SetConstant(prefix + descs[j].Name, parameters[j]);
}
}
}
unsafe void Flush(bool rebatch)
{
if (batch.VertexCount == 0)
{
if (!rebatch)
{
batch.EndBatch();
}
return;
}
// We flush the buffer, first end batch.
batch.EndBatch();
// We update vertex constants.
vertexConstants.Map(MapOptions.Write);
try
{
DataTransform vtransform = positionTransforms.Peek();
if (!vtransform.ProcessCPU)
{
vertexConstants.SetConstant("PositionTransform",
Matrix4x4f.CreateTranslate(new Vector3f(-unitSize.X, -unitSize.Y, 0)) *
Matrix4x4f.CreateScale(new Vector3f(2.0f, 2.0f, 2.0f)) *
vtransform.Transform.RuntimeForm);
}
else
{
vertexConstants.SetConstant("PositionTransform", Matrix4x4f.Identity);
}
DataTransform ttransform = textureTransforms.Peek();
if (!ttransform.ProcessCPU)
{
vertexConstants.SetConstant("TextureTransform", ttransform.Transform.RuntimeForm);
}
else
{
vertexConstants.SetConstant("TextureTransform", Matrix4x4f.Identity);
}
}
finally
{
vertexConstants.UnMap();
}
// Vertex Shader:
FixedShaderParameters vparams = vertexShaderCode.FixedParameters;
vparams.AddLayout(0, vertexConstants.Layout);
VShader vshader = vertexShaderCode.Compile(device, vparams) as VShader;
// Pixel Shaders:
FixedShaderParameters pparams = pixelShaderCode.FixedParameters;
// We set interfaces.
pparams.SetInterfaceArray("Fills", fills);
// We now set per parameter data.
ConstantBufferLayoutBuilder builder = new ConstantBufferLayoutBuilder();
List <TextureView> textures = new List <TextureView>();
List <SamplerState> samplers = new List <SamplerState>();
// We add per-fill data.
for (int i = 0; i < fills.Count; i++)
{
IFill fill = fills[i];
string prefix = string.Format("Fills[{0}]", i);
InterfaceHelper.ApplyInterfaceConstants(prefix, fill, builder, pparams, textures,
samplers, fill.ParameterValues);
}
// We create view and fill data.
ConstantBufferLayout layout = builder.CreateLayout();
ConstantBufferView pixelConstantsView = pixelConstants.CreateConstantBuffer(layout);
pparams.AddLayout(0, layout);
// TODO: this may not be needed for optimized setting.
pixelConstantsView.Map(MapOptions.Write);
try
{
for (int i = 0; i < fills.Count; i++)
{
IFill fill = fills[i];
string prefix = string.Format("Fills[{0}]", i);
InterfaceHelper.FillInterfaceConstants(prefix, fill,
pixelConstantsView, fill.ParameterValues);
}
}
finally
{
pixelConstantsView.UnMap();
}
// Finally compile.
PShader pshader = pixelShaderCode.Compile(device, pparams) as PShader;
using (DeviceLock devLock = device.Lock())
{
// We now draw using data, set all states.
device.SetBlendState(blendState, Colour.Black, 0xFFFFFFFF);
device.SetDepthStencilState(depthStencilState, 0);
device.SetRasterizationState(rasterizationState);
if (viewport.Width == viewport.Height && viewport.Height == 0)
{
device.Viewport = new Region2i(new Vector2i(0, 0), new Vector2i((int)renderTarget.Width, (int)renderTarget.Height));
}
else
{
device.Viewport = viewport;
}
// We bind stages.
device.SetVertexShader(vshader, batch, null, null, new ConstantBufferView[] { vertexConstants });
device.SetPixelShader(pshader, samplers.ToArray(), textures.ToArray(),
new ConstantBufferView[] { pixelConstantsView },
new RenderTargetView[] { renderTarget }, null);
device.SetGeometryShader(null, null, null, null, null);
// We now draw.
device.DrawIndexed(0, batch.IndexCount, 0);
// We clear state.
device.SetVertexShader(null, null, null, null, null);
device.SetPixelShader(null, null, null, null, null, null);
}
pixelConstantsView.Dispose();
// Fills and data is irrelavant.
fills.Clear();
// We rebatch if not completelly ended.
if (rebatch)
{
batch.BeginBatch();
}
}
/// <summary>
/// Composites to source.
/// </summary>
/// <param name="compositeOperation"></param>
public void CompositeToSource(ICompositingOperation compositeOperation,
BlendState blendOverwrite, Colour blendColour, Region2i viewport, RenderTargetView target)
{
// 1) We first prepare the providers.
List <ICompositingOperation> relavantOperations = new List <ICompositingOperation>();
ListOperations(compositeOperation, relavantOperations);
// 2) We extract processors.
List <ICompositeInterface> processors = new List <ICompositeInterface>(relavantOperations.Count);
for (int i = 0; i < relavantOperations.Count; i++)
{
processors.Add(relavantOperations[i].Interface);
}
// 3) We prepare the shader.
ShaderCode pshader = PixelShader;
ShaderCode vshader = VertexShader;
States.BlendState bstate = blendOverwrite != null ? blendOverwrite : DefaultBlendState;
States.DepthStencilState dstate = DefaultDepthStencilState;
States.RasterizationState rstate = DefaultRasterizationState;
FixedShaderParameters pparams = pshader.FixedParameters;
FixedShaderParameters vparams = vshader.FixedParameters;
ConstantBufferLayoutBuilder builder = new ConstantBufferLayoutBuilder();
List <TextureView> textures = new List <TextureView>();
List <States.SamplerState> samplers = new List <States.SamplerState>();
// We set interface array.
pparams.SetInterfaceArray("Composite", processors);
builder.AppendElement("Offset", PinFormat.Floatx2);
// 4) We fill parameters and builder.
for (int i = 0; i < processors.Count; i++)
{
string name = string.Format("Composite[{0}]", i);
InterfaceHelper.ApplyInterfaceConstants(name, processors[i], builder, pparams, textures, samplers,
processors[i].ParameterValues);
}
// 5) We obtain layout big enough.
ConstantBufferLayout layout = builder.CreateLayout();
pparams.AddLayout(0, layout);
ConstantBufferView constantBuffer = pixelTypelessConstantBuffer.CreateConstantBuffer(layout);
// 6) We fill buffer.
constantBuffer.Map(MapOptions.Write);
try
{
constantBuffer.SetConstant("Offset", new Vector2f((float)viewport.X, (float)viewport.Y));
for (int i = 0; i < processors.Count; i++)
{
InterfaceHelper.FillInterfaceConstants(string.Format("Composite[{0}]", i), processors[i],
constantBuffer, processors[i].ParameterValues);
}
}
finally
{
constantBuffer.UnMap();
}
// 7) We prepare geometry.
// We get quad geometry
Geometry geometry = alignedQuad;
// ) We render the composition.
GraphicsDevice device = Device;
using (DeviceLock l = device.Lock())
{
// We set our state objects.
device.SetBlendState(bstate, blendColour, 0xFFFFFFFF);
device.SetDepthStencilState(dstate, 0);
device.SetRasterizationState(rstate);
device.Viewport = viewport;
// We prepare to render.
device.SetVertexShader(vshader.Compile(device, vparams) as VShader, geometry, null, null, null);
device.SetGeometryShader(null, null, null, null, null);
device.SetPixelShader(pshader.Compile(device, pparams) as PShader, samplers.ToArray(), textures.ToArray(), new ConstantBufferView[] { constantBuffer },
new RenderTargetView[] { target }, null);
// We render it.
if (geometry.IndexBuffer != null)
{
device.DrawIndexed(0, 6, 0);
}
else
{
device.Draw(0, 6);
}
device.SetPixelShader(null, null, null, null, null, null);
}
// We do not use constant buffer anymore.
constantBuffer.Dispose();
}