Do initial integration of spirv code generation with FS

src/Pipeline/PixelProgram.cpp

@@ -41,7 +41,7 @@ namespace sw
 			}
 		}
 
-		// TODO: Emit code for the actual shader here.
+		spirvShader->emit(&routine);
 
 		for(int i = 0; i < RENDERTARGETS; i++)
 		{

src/Pipeline/PixelRoutine.cpp

@@ -42,6 +42,8 @@ namespace sw
 				v[i].w = Float4(0.0f);
 			}
 		}
+
+		spirvShader->emitEarly(&routine);
 	}
 
 	PixelRoutine::~PixelRoutine()

src/Pipeline/PixelRoutine.hpp

@@ -35,6 +35,7 @@ namespace sw
 		Float4 rhw;  // Reciprocal w
 
 		RegisterArray<MAX_FRAGMENT_INPUTS> v;   // Varying registers
+		SpirvRoutine routine;
 
 		// Depth output
 		Float4 oDepth;