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50 lines
2.1 KiB
C
50 lines
2.1 KiB
C
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/*
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** Polygon Doom software renderer
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** Copyright (c) 2016 Magnus Norddahl
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**
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** This software is provided 'as-is', without any express or implied
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** warranty. In no event will the authors be held liable for any damages
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** arising from the use of this software.
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**
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** Permission is granted to anyone to use this software for any purpose,
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** including commercial applications, and to alter it and redistribute it
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** freely, subject to the following restrictions:
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**
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** 1. The origin of this software must not be misrepresented; you must not
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** claim that you wrote the original software. If you use this software
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** in a product, an acknowledgment in the product documentation would be
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** appreciated but is not required.
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** 2. Altered source versions must be plainly marked as such, and must not be
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** misrepresented as being the original software.
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** 3. This notice may not be removed or altered from any source distribution.
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**
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*/
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#pragma once
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class PolyTriangleThreadData;
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enum SWBlendColor
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{
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SWBLEND_Sub = 1,
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SWBLEND_RevSub = 2
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};
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struct BlendColorOpt_Add { static const int Flags = 0; };
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struct BlendColorOpt_Sub { static const int Flags = 1; };
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struct BlendColorOpt_RevSub { static const int Flags = 2; };
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template<typename OptT>
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void BlendColor(int y, int x0, int x1, PolyTriangleThreadData* thread);
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void BlendColorOpaque(int y, int x0, int x1, PolyTriangleThreadData* thread);
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void BlendColorOpaque(int y, int x0, int x1, PolyTriangleThreadData* thread);
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void BlendColorAdd_Src_InvSrc(int y, int x0, int x1, PolyTriangleThreadData* thread);
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void BlendColorAdd_SrcCol_InvSrcCol(int y, int x0, int x1, PolyTriangleThreadData* thread);
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void BlendColorAdd_Src_One(int y, int x0, int x1, PolyTriangleThreadData* thread);
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void BlendColorAdd_SrcCol_One(int y, int x0, int x1, PolyTriangleThreadData* thread);
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void BlendColorAdd_DstCol_Zero(int y, int x0, int x1, PolyTriangleThreadData* thread);
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void BlendColorAdd_InvDstCol_Zero(int y, int x0, int x1, PolyTriangleThreadData* thread);
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void BlendColorRevSub_Src_One(int y, int x0, int x1, PolyTriangleThreadData* thread);
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void SelectWriteColorFunc(PolyTriangleThreadData* thread);
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