public override void EmitImplSetup()
{
var constantElement = GetElement("Constant");
var uniformElement = GetElement("Uniform");
var coarseVertexElement = GetElement("CoarseVertex");
InitBlock.AppendComment("D3D11 Hull Shader");
var tessEnabledAttr = FindAttribute(constantElement, "__D3D11TessellationEnabled");
if (tessEnabledAttr == null)
{
return;
}
var superPatchElement = GetElement("__InputPatch");
var inputPatchElement = GetElement("InputPatch");
var outputPatchElement = GetElement("OutputPatch");
var controlPointElement = GetElement("ControlPoint");
var patchEdgeElement = GetElement("PatchEdge");
var patchCornerElement = GetElement("PatchCorner");
var patchInteriorElement = GetElement("PatchInterior");
hlslContext = new EmitContextHLSL(SharedHLSL, Range, this.EmitClass.GetName());
var entryPointSpan = hlslContext.EntryPointSpan;
entryPointSpan = hlslContext.PushErrorMask(entryPointSpan, "X3550");
var inputCoarseVertexCount = GetAttribute(constantElement, "HS_InputCoarseVertexCount");
var outputControlPointCount = GetAttribute(constantElement, "HS_OutputControlPointCount");
var tsDomain = GetAttribute(constantElement, "TS_Domain");
var tsPartitioning = GetAttribute(constantElement, "TS_Partitioning");
var tsOutputTopology = GetAttribute(constantElement, "TS_OutputTopology");
var tsMaxTessFactor = GetAttribute(constantElement, "TS_MaxTessFactor");
var hsPatchEdgeCount = GetAttribute(constantElement, "HS_PatchEdgeCount");
var hsPatchInsideCount = GetAttribute(constantElement, "HS_PatchInsideCount");
var hsPatchCornerCount = GetAttribute(constantElement, "HS_PatchCornerCount");
var hsCullPatchAttr = GetAttribute(outputPatchElement, "HS_CullPatch");
hlslContext.GenerateConnectorType(coarseVertexElement);
hlslContext.GenerateConnectorType(controlPointElement);
hlslContext.GenerateConnectorType(outputPatchElement);
// OutputPatch entry point
var outputPatchConnector = hlslContext.GenerateConnectorType(outputPatchElement);
entryPointSpan.WriteLine("{0} __patchMain(",
outputPatchConnector);
bool first = true;
hlslContext.DeclareParamAndBind(
GetAttribute(superPatchElement, "HS_InputCoarseVertices"),
null,
ref first,
entryPointSpan);
// \todo:
// @OutputPatch Array[ControlPoint, HS_OutputControlPointCount] HS_OutputControlPoints
hlslContext.DeclareParamAndBind(
GetAttribute(superPatchElement, "HS_PatchID"),
"SV_PrimitiveID",
ref first,
entryPointSpan);
entryPointSpan.WriteLine("\t)");
entryPointSpan.WriteLine("{");
// Declare the output patch variable, but don't initialize it
var outputPatch = outputPatchConnector.CreateVal("HS_OutputPatch");
hlslContext.DeclareLocal(outputPatch, entryPointSpan);
// Do any input-patch initialization stuff
var ip2op = hlslContext.EmitTempRecordCtor(
entryPointSpan,
inputPatchElement,
GetAttribute(outputPatchElement, "__ip2op"));
// Iterate over the corners of the patch, and initialize each
entryPointSpan.WriteLine("for( uint HS_CornerID = 0; HS_CornerID < {0}; HS_CornerID++ )",
hlslContext.EmitAttribRef(hsPatchCornerCount, null));
entryPointSpan.WriteLine("{");
hlslContext.BindAttr(
GetAttribute(patchCornerElement, "__ip2pc"),
ip2op);
var patchCornerIDAttr = GetAttribute(patchCornerElement, "HS_PatchCornerID");
var hsCornerIDVal = new SimpleValHLSL("HS_CornerID",
(RealTypeHLSL)hlslContext.EmitType(patchCornerIDAttr.Type));
hlslContext.BindAttr(
patchCornerIDAttr,
hsCornerIDVal);
var hsPatchCornersAttr = GetAttribute(outputPatchElement, "HS_PatchCorners");
var hsPatchCornersVal = hlslContext.FetchAttr(
outputPatch,
hsPatchCornersAttr.Attribute,
entryPointSpan);
hlslContext.BindAttr(hsPatchCornersAttr, hsPatchCornersVal);
var hsPatchCornerVal = hlslContext.GetElem(
hsPatchCornersVal,
hsCornerIDVal);
hlslContext.InitRecord(
entryPointSpan,
patchCornerElement,
hsPatchCornerVal);
entryPointSpan.WriteLine("}");
entryPointSpan.WriteLine("for( uint HS_EdgeID = 0; HS_EdgeID < {0}; HS_EdgeID++ )",
hlslContext.EmitAttribRef(hsPatchEdgeCount, null));
entryPointSpan.WriteLine("{");
hlslContext.BindAttr(
GetAttribute(patchEdgeElement, "__ip2pe"),
ip2op);
hlslContext.BindAttr(
GetAttribute(patchEdgeElement, "__op2pe"),
outputPatch);
var patchEdgeIDAttr = GetAttribute(patchEdgeElement, "HS_PatchEdgeID");
var hsEdgeIDVal = new SimpleValHLSL("HS_EdgeID",
(RealTypeHLSL)hlslContext.EmitType(patchEdgeIDAttr.Type));
hlslContext.BindAttr(
patchEdgeIDAttr,
hsEdgeIDVal);
var hsPatchEdgesAttr = GetAttribute(outputPatchElement, "HS_PatchEdges");
var hsPatchEdgesVal = hlslContext.FetchAttr(
outputPatch,
hsPatchEdgesAttr.Attribute,
entryPointSpan);
hlslContext.BindAttr(hsPatchEdgesAttr, hsPatchEdgesVal);
var hsPatchEdgeVal = hlslContext.GetElem(
hsPatchEdgesVal,
hsEdgeIDVal);
hlslContext.InitRecord(
entryPointSpan,
patchEdgeElement,
hsPatchEdgeVal);
var hsEdgeFactorSrcVal = hlslContext.FetchAttr(
hsPatchEdgeVal,
GetAttribute(patchEdgeElement, "HS_EdgeFactor").Attribute,
entryPointSpan);
var hsEdgeFactorsAttr = GetAttribute(outputPatchElement, "HS_EdgeFactors").Attribute;
var hsEdgeFactorsVal = hlslContext.FetchAttr(
outputPatch,
hsEdgeFactorsAttr,
entryPointSpan);
hlslContext.BindAttr(hsEdgeFactorsAttr, hsEdgeFactorsVal);
var hsEdgeFactorDstVal = hlslContext.GetElem(
hsEdgeFactorsVal,
hsEdgeIDVal);
hlslContext.Assign(
hsEdgeFactorDstVal,
hsEdgeFactorSrcVal,
entryPointSpan);
entryPointSpan.WriteLine("}");
var hsPatchInsideCountStr = hlslContext.EmitAttribRef(hsPatchInsideCount, null).ToString();
var onlyOneInside = hsPatchInsideCountStr == "1";
if (!onlyOneInside)
{
entryPointSpan.WriteLine("for( uint HS_InsideID = 0; HS_InsideID < {0}; HS_InsideID++ )",
hlslContext.EmitAttribRef(hsPatchInsideCount, null));
entryPointSpan.WriteLine("{");
}
else
{
entryPointSpan.WriteLine("uint HS_InsideID = 0;");
}
hlslContext.BindAttr(
GetAttribute(patchInteriorElement, "__ip2pi"),
ip2op);
hlslContext.BindAttr(
GetAttribute(patchInteriorElement, "__op2pi"),
outputPatch);
var hsPatchInsideIDAttr = GetAttribute(patchInteriorElement, "HS_PatchInteriorID");
var hsInsideIDVal = new SimpleValHLSL("HS_InsideID",
(RealTypeHLSL)hlslContext.EmitType(hsPatchInsideIDAttr.Type));
hlslContext.BindAttr(
hsPatchInsideIDAttr,
hsInsideIDVal);
var hsPatchInteriorsAttr = GetAttribute(outputPatchElement, "HS_PatchInteriors");
var hsPatchInteriorsVal = hlslContext.FetchAttr(
outputPatch,
hsPatchInteriorsAttr.Attribute,
entryPointSpan);
hlslContext.BindAttr(hsPatchInteriorsAttr, hsPatchInteriorsVal);
var hsPatchInteriorVal = hlslContext.GetElem(
hsPatchInteriorsVal,
hsInsideIDVal);
hlslContext.InitRecord(
entryPointSpan,
patchInteriorElement,
hsPatchInteriorVal);
var hsInsideFactorSrcVal = hlslContext.FetchAttr(
hsPatchInteriorVal,
GetAttribute(patchInteriorElement, "HS_InsideFactor").Attribute,
entryPointSpan);
var hsInsideFactorsAttr = GetAttribute(outputPatchElement, "HS_InsideFactors").Attribute;
var hsInsideFactorsVal = hlslContext.FetchAttr(
outputPatch,
hsInsideFactorsAttr,
entryPointSpan);
hlslContext.BindAttr(hsInsideFactorsAttr, hsInsideFactorsVal);
var hsInsideFactorDstVal = hlslContext.GetElem(
hsInsideFactorsVal,
hsInsideIDVal);
hlslContext.Assign(
hsInsideFactorDstVal,
hsInsideFactorSrcVal,
entryPointSpan);
if (!onlyOneInside)
{
entryPointSpan.WriteLine("}");
}
hlslContext.InitRecord(
entryPointSpan,
outputPatchElement,
outputPatch);
var hsCullPatchVal = hlslContext.EmitAttribRef(hsCullPatchAttr, entryPointSpan);
entryPointSpan.WriteLine("if( {0} )", hsCullPatchVal);
entryPointSpan.WriteLine("{");
var hsEdgeFactor0Val = hlslContext.GetElem(
hsEdgeFactorsVal,
new SimpleValHLSL("0", new ScalarTypeHLSL("int")));
hlslContext.Assign(
hsEdgeFactor0Val,
new SimpleValHLSL("0.0f", new ScalarTypeHLSL("float")),
entryPointSpan);
entryPointSpan.WriteLine("}");
entryPointSpan.WriteLine("\treturn {0};", outputPatch);
entryPointSpan.WriteLine("}");
// ControlPoint entry point
foreach (var a in inputPatchElement.Attributes)
{
hlslContext.UnbindAttribute(a);
}
// Bind a bunch of attributes that really represent constants:
hlslContext.BindAttrLit(
GetAttribute(constantElement, "TriangleDomain"),
"tri");
hlslContext.BindAttrLit(
GetAttribute(constantElement, "QuadDomain"),
"quad");
hlslContext.BindAttrLit(
GetAttribute(constantElement, "FractionalOddPartitioning"),
"fractional_odd");
hlslContext.BindAttrLit(
GetAttribute(constantElement, "IntegerPartitioning"),
"integer");
hlslContext.BindAttrLit(
GetAttribute(constantElement, "TriangleCWTopology"),
"triangle_cw");
entryPointSpan.WriteLine("[domain(\"{0}\")]",
hlslContext.EmitAttrLit(tsDomain));
entryPointSpan.WriteLine("[partitioning(\"{0}\")]",
hlslContext.EmitAttrLit(tsPartitioning));
entryPointSpan.WriteLine("[outputtopology(\"{0}\")]",
hlslContext.EmitAttrLit(tsOutputTopology));
entryPointSpan.WriteLine("[outputcontrolpoints({0})]",
hlslContext.EmitAttrLit(outputControlPointCount));
entryPointSpan.WriteLine("[patchconstantfunc(\"__patchMain\")]");
// entryPointSpan.WriteLine("[maxtessfactor({0:f})]",
// hlslContext.EmitAttribRef(
// tsMaxTessFactor,
// null));
entryPointSpan.WriteLine("{0} main(",
hlslContext.GenerateConnectorType(controlPointElement));
first = true;
hlslContext.DeclareParamAndBind(
GetAttribute(superPatchElement, "HS_InputCoarseVertices"),
null,
ref first,
entryPointSpan);
hlslContext.DeclareParamAndBind(
GetAttribute(superPatchElement, "HS_PatchID"),
"SV_PrimitiveID",
ref first,
entryPointSpan);
hlslContext.DeclareParamAndBind(
GetAttribute(controlPointElement, "HS_ControlPointID"),
"SV_OutputControlPointID",
ref first,
entryPointSpan);
entryPointSpan.WriteLine("\t)");
entryPointSpan.WriteLine("{");
hlslContext.EmitTempRecordCtor(
entryPointSpan,
inputPatchElement,
GetAttribute(controlPointElement, "__ip2ocp"));
var cpOutput = hlslContext.EmitConnectorCtor(
entryPointSpan,
controlPointElement);
entryPointSpan.WriteLine("\treturn {0};", cpOutput);
entryPointSpan.WriteLine("}");
hlslContext.EmitConstantBufferDecl();
EmitShaderSetup(
hlslContext,
"hs_5_0",
"Hull",
"HS");
}
//
public override void EmitImplSetup()
{
var uniformElement = GetElement("Uniform");
var rasterVertex = GetElement("RasterVertex");
var fragmentElement = GetElement("Fragment");
var pixelElement = GetElement("Pixel");
// Find all render targets:
renderTargetAttributes = (from a in pixelElement.Attributes
where a.Exp != null
where a.IsOutput
select a).ToArray();
renderTargetCount = renderTargetAttributes.Length;
// Depth-stencil view
depthStencilViewAttribute = GetAttribute(uniformElement, "depthStencilView");
// Compute the setup required by the OM
// Blending stuff
var blendStateType = EmitTarget.GetOpaqueType("ID3D11BlendState*");
blendStateField = EmitClass.AddPrivateField(
blendStateType,
"_blendState");
_renderTargetBlendDescs = new TargetBlendDesc[renderTargetCount];
_renderTargetSources = new SourceInfo[renderTargetCount];
for (int ii = 0; ii < renderTargetCount; ++ii)
{
DecomposeAttr(renderTargetAttributes[ii], ii);
}
var rtBlendDescType = EmitTarget.GetBuiltinType("D3D11_RENDER_TARGET_BLEND_DESC");
var blendSpecVals = (from desc in _renderTargetBlendDescs
select InitBlock.Struct(
"D3D11_RENDER_TARGET_BLEND_DESC",
InitBlock.LiteralBool(desc.blendEnable),
InitBlock.Enum32(desc.color.srcBlend),
InitBlock.Enum32(desc.color.destBlend),
InitBlock.Enum32(desc.color.op),
InitBlock.Enum32(desc.alpha.srcBlend),
InitBlock.Enum32(desc.alpha.destBlend),
InitBlock.Enum32(desc.alpha.op),
InitBlock.LiteralU32(desc.writeMask))).ToList();
while (blendSpecVals.Count < 8) // \todo: get the limits from somwhere!!!
{
blendSpecVals.Add(
InitBlock.Struct(
"D3D11_RENDER_TARGET_BLEND_DESC",
InitBlock.LiteralBool(false),
InitBlock.Enum32("D3D11_BLEND", "D3D11_BLEND_ONE", D3D11_BLEND.D3D11_BLEND_ONE),
InitBlock.Enum32("D3D11_BLEND", "D3D11_BLEND_ZERO", D3D11_BLEND.D3D11_BLEND_ZERO),
InitBlock.Enum32("D3D11_BLEND_OP", "D3D11_BLEND_OP_ADD", D3D11_BLEND_OP.D3D11_BLEND_OP_ADD),
InitBlock.Enum32("D3D11_BLEND", "D3D11_BLEND_ONE", D3D11_BLEND.D3D11_BLEND_ONE),
InitBlock.Enum32("D3D11_BLEND", "D3D11_BLEND_ZERO", D3D11_BLEND.D3D11_BLEND_ZERO),
InitBlock.Enum32("D3D11_BLEND_OP", "D3D11_BLEND_OP_ADD", D3D11_BLEND_OP.D3D11_BLEND_OP_ADD),
InitBlock.LiteralU32((UInt32)D3D11_COLOR_WRITE_ENABLE.D3D11_COLOR_WRITE_ENABLE_ALL)));
}
var blendSpecsVal = InitBlock.Array(
rtBlendDescType,
blendSpecVals);
InitBlock.AppendComment("D3D11 Output Merger");
var blendDescVal =
InitBlock.Temp("blendDesc",
InitBlock.Struct(
"D3D11_BLEND_DESC",
InitBlock.LiteralBool(false),
InitBlock.LiteralBool(true),
blendSpecsVal));
InitBlock.SetArrow(
CtorThis,
blendStateField,
EmitTarget.GetNullPointer(blendStateType));
InitBlock.CallCOM(
CtorDevice,
"ID3D11Device",
"CreateBlendState",
blendDescVal.GetAddress(),
InitBlock.GetArrow(CtorThis, blendStateField).GetAddress());
DtorBlock.CallCOM(
DtorBlock.GetArrow(DtorThis, blendStateField),
"IUnknown",
"Release");
// Emit HLSL code for PS
InitBlock.AppendComment("D3D11 Pixel Shader");
hlslContext = new EmitContextHLSL(SharedHLSL, Range, this.EmitClass.GetName());
var entryPointSpan = hlslContext.EntryPointSpan;
entryPointSpan.WriteLine("void main(");
bool firstParam = true;
hlslContext.DeclareConnectorAndBind(
rasterVertex,
GetAttribute(fragmentElement, "__rv2f"),
ref firstParam,
entryPointSpan);
hlslContext.DeclareParamAndBind(
GetAttribute(fragmentElement, "PS_ScreenSpacePosition"),
"SV_Position",
ref firstParam,
entryPointSpan);
for (int ii = 0; ii < renderTargetCount; ++ii)
{
if (!firstParam)
{
entryPointSpan.WriteLine(",");
}
firstParam = false;
var sourceInfo = _renderTargetSources[ii];
MidExp exp = null;
if (sourceInfo.combinedExp != null)
{
// \todo: Validate other bits and bobs!!!
exp = sourceInfo.combinedExp;
}
else
{
throw new NotImplementedException();
}
entryPointSpan.Write("\tout {1} target{0} : SV_Target{0}", ii,
hlslContext.EmitType(exp.Type));
}
entryPointSpan.WriteLine(" )");
entryPointSpan.WriteLine("{");
hlslContext.EmitTempRecordCtor(
entryPointSpan,
fragmentElement,
GetAttribute(pixelElement, "__ps2om"));
var psCullFragmentAttr = GetAttribute(fragmentElement, "PS_CullFragment");
entryPointSpan.WriteLine("\tif( {0} ) discard;",
hlslContext.EmitAttribRef(psCullFragmentAttr, entryPointSpan));
for (int ii = 0; ii < renderTargetCount; ++ii)
{
var sourceInfo = _renderTargetSources[ii];
MidExp exp = null;
if (sourceInfo.combinedExp != null)
{
// \todo: Validate other bits and bobs!!!
exp = sourceInfo.combinedExp;
}
else
{
throw new NotImplementedException();
}
entryPointSpan.WriteLine("\ttarget{0} = {1};",
ii,
hlslContext.EmitExp(exp, entryPointSpan));
}
entryPointSpan.WriteLine("}");
hlslContext.EmitConstantBufferDecl();
//
EmitShaderSetup(
hlslContext,
"ps_5_0",
"Pixel",
"PS");
}