Move setup triangle stuff to its own file

tools/drawergen/fixedfunction/setuptrianglecodegen.h

@@ -0,0 +1,98 @@
+/*
+**  SetupTriangle code generation
+**  Copyright (c) 2016 Magnus Norddahl
+**
+**  This software is provided 'as-is', without any express or implied
+**  warranty.  In no event will the authors be held liable for any damages
+**  arising from the use of this software.
+**
+**  Permission is granted to anyone to use this software for any purpose,
+**  including commercial applications, and to alter it and redistribute it
+**  freely, subject to the following restrictions:
+**
+**  1. The origin of this software must not be misrepresented; you must not
+**     claim that you wrote the original software. If you use this software
+**     in a product, an acknowledgment in the product documentation would be
+**     appreciated but is not required.
+**  2. Altered source versions must be plainly marked as such, and must not be
+**     misrepresented as being the original software.
+**  3. This notice may not be removed or altered from any source distribution.
+**
+*/
+
+#pragma once
+
+#include "drawercodegen.h"
+
+struct SSASetupVertex
+{
+	SSAFloat x, y, z, w;
+};
+
+class SetupTriangleCodegen : public DrawerCodegen
+{
+public:
+	void Generate(bool subsectorTest, SSAValue args, SSAValue thread_data);
+
+private:
+	void LoadArgs(SSAValue args, SSAValue thread_data);
+	SSASetupVertex LoadTriVertex(SSAValue v);
+	void Setup();
+	SSAInt FloatTo28_4(SSAFloat v);
+	void LoopBlockY();
+	void LoopBlockX();
+	void LoopFullBlock();
+	void LoopPartialBlock(bool isSingleStencilValue);
+
+	void SetStencilBlock(SSAInt block);
+	void StencilClear(SSAUByte value);
+	SSAUByte StencilGetSingle();
+	SSABool StencilIsSingleValue();
+
+	bool subsectorTest;
+
+	SSAStack<SSAInt> stack_C1, stack_C2, stack_C3;
+	SSAStack<SSAInt> stack_y;
+	SSAStack<SSAUBytePtr> stack_subsectorGBuffer;
+	SSAStack<SSAInt> stack_x;
+	SSAStack<SSAUBytePtr> stack_buffer;
+	SSAStack<SSAInt> stack_iy, stack_ix;
+	SSAStack<SSAInt> stack_CY1, stack_CY2, stack_CY3;
+	SSAStack<SSAInt> stack_CX1, stack_CX2, stack_CX3;
+	//SSAStack<SSABool> stack_stencilblock_restored;
+	//SSAStack<SSAUByte> stack_stencilblock_lastval;
+
+	SSAUBytePtr subsectorGBuffer;
+	SSAInt pitch;
+	SSASetupVertex v1;
+	SSASetupVertex v2;
+	SSASetupVertex v3;
+	SSAInt clipright;
+	SSAInt clipbottom;
+
+	SSAUBytePtr stencilValues;
+	SSAIntPtr stencilMasks;
+	SSAInt stencilPitch;
+	SSAUByte stencilTestValue;
+	SSAUByte stencilWriteValue;
+
+	SSAWorkerThread thread;
+
+	// Block size, standard 8x8 (must be power of two)
+	const int q = 8;
+
+	SSAInt Y1, Y2, Y3;
+	SSAInt X1, X2, X3;
+	SSAInt DX12, DX23, DX31;
+	SSAInt DY12, DY23, DY31;
+	SSAInt FDX12, FDX23, FDX31;
+	SSAInt FDY12, FDY23, FDY31;
+	SSAInt minx, maxx, miny, maxy;
+	SSAInt C1, C2, C3;
+
+	SSAInt x, y;
+	SSAInt x0, x1, y0, y1;
+
+	SSAUBytePtr StencilBlock;
+	SSAIntPtr StencilBlockMask;
+};