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62 lines
1.7 KiB
C++
62 lines
1.7 KiB
C++
/*
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** DrawSky code generation
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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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#include "drawercodegen.h"
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enum class DrawSkyVariant
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{
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Single,
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Double
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};
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class DrawSkyCodegen : public DrawerCodegen
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{
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public:
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void Generate(DrawSkyVariant variant, SSAValue args, SSAValue thread_data);
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private:
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void Loop(DrawSkyVariant variant, bool fade_sky);
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SSAVec4i Sample(SSAInt frac, DrawSkyVariant variant);
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SSAVec4i FadeOut(SSAInt frac, SSAVec4i color);
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SSAStack<SSAInt> stack_index, stack_frac;
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SSAUBytePtr dest;
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SSAUBytePtr source0;
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SSAUBytePtr source1;
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SSAInt pitch;
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SSAInt count;
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SSAInt dest_y;
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SSAInt texturefrac;
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SSAInt iscale;
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SSAInt textureheight0;
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SSAInt maxtextureheight1;
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SSAVec4i top_color;
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SSAVec4i bottom_color;
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SSAWorkerThread thread;
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SSAInt fracstep;
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SSABool is_fade_sky;
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};
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