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Add codegen for one of the triangle variants

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Magnus Norddahl 2016-11-12 00:50:21 +01:00
commit c852b6c5e9
18 changed files with 739 additions and 38 deletions
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src/r_compiler/fixedfunction/drawtrianglecodegen.h Normal file
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/*
** DrawTriangle 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 SSATriVertex
{
SSAFloat x, y, z, w;
SSAFloat varying[TriVertex::NumVarying];
};
class DrawTriangleCodegen : public DrawerCodegen
{
public:
void Generate(TriDrawVariant variant, bool truecolor, SSAValue args, SSAValue thread_data);
private:
void LoadArgs(TriDrawVariant variant, bool truecolor, SSAValue args, SSAValue thread_data);
SSATriVertex LoadTriVertex(SSAValue v);
void LoadUniforms(SSAValue uniforms);
void Setup(TriDrawVariant variant, bool truecolor);
void LoopBlockY(TriDrawVariant variant, bool truecolor);
void LoopBlockX(TriDrawVariant variant, bool truecolor);
void LoopFullBlock(TriDrawVariant variant, bool truecolor);
void LoopPartialBlock(TriDrawVariant variant, bool truecolor);
void ProcessPixel(SSAUBytePtr buffer, SSAIntPtr subsectorbuffer, SSAInt *varying, TriDrawVariant variant, bool truecolor);
SSAFloat gradx(SSAFloat x0, SSAFloat y0, SSAFloat x1, SSAFloat y1, SSAFloat x2, SSAFloat y2, SSAFloat c0, SSAFloat c1, SSAFloat c2);
SSAFloat grady(SSAFloat x0, SSAFloat y0, SSAFloat x1, SSAFloat y1, SSAFloat x2, SSAFloat y2, SSAFloat c0, SSAFloat c1, SSAFloat c2);
SSAStack<SSAInt> stack_C1, stack_C2, stack_C3;
SSAStack<SSAInt> stack_y;
SSAStack<SSAUBytePtr> stack_dest;
SSAStack<SSAIntPtr> stack_subsectorGBuffer;
SSAStack<SSAInt> stack_x;
SSAStack<SSAUBytePtr> stack_buffer;
SSAStack<SSAIntPtr> stack_subsectorbuffer;
SSAStack<SSAInt> stack_iy, stack_ix;
SSAStack<SSAInt> stack_varying[TriVertex::NumVarying];
SSAStack<SSAInt> stack_CY1, stack_CY2, stack_CY3;
SSAStack<SSAInt> stack_CX1, stack_CX2, stack_CX3;
SSAUBytePtr dest;
SSAInt pitch;
SSATriVertex v1;
SSATriVertex v2;
SSATriVertex v3;
SSAInt clipleft;
SSAInt clipright;
SSAInt cliptop;
SSAInt clipbottom;
SSAUBytePtr texturePixels;
SSAInt textureWidth;
SSAInt textureHeight;
SSAInt solidcolor;
SSAInt light;
SSAInt subsectorDepth;
SSAShadeConstants shade_constants;
SSABool is_simple_shade;
SSABool is_nearest_filter;
SSAUBytePtr stencilValues;
SSAIntPtr stencilMasks;
SSAInt stencilPitch;
SSAUByte stencilTestValue;
SSAUByte stencilWriteValue;
SSAIntPtr subsectorGBuffer;
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;
SSAFloat gradWX, gradWY, startW;
SSAFloat gradVaryingX[TriVertex::NumVarying], gradVaryingY[TriVertex::NumVarying], startVarying[TriVertex::NumVarying];
SSAInt x, y;
SSAInt x0, x1, y0, y1;
SSAInt diminishedlight;
SSAFloat varyingTL[TriVertex::NumVarying];
SSAFloat varyingTR[TriVertex::NumVarying];
SSAFloat varyingBL[TriVertex::NumVarying];
SSAFloat varyingBR[TriVertex::NumVarying];
};