mirror of
https://github.com/love2d/love.git
synced 2026-08-16 00:02:12 +02:00
Sasha Szpakowski
75 lines
2.1 KiB
C++
75 lines
2.1 KiB
C++
/**
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* Copyright (c) 2006-2023 LOVE Development Team
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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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#pragma once
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#include <vector>
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#include <string>
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namespace love
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{
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namespace graphics
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{
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enum StencilAction
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{
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STENCIL_REPLACE,
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STENCIL_INCREMENT,
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STENCIL_DECREMENT,
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STENCIL_INCREMENT_WRAP,
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STENCIL_DECREMENT_WRAP,
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STENCIL_INVERT,
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STENCIL_MAX_ENUM
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};
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enum CompareMode
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{
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COMPARE_LESS,
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COMPARE_LEQUAL,
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COMPARE_EQUAL,
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COMPARE_GEQUAL,
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COMPARE_GREATER,
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COMPARE_NOTEQUAL,
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COMPARE_ALWAYS,
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COMPARE_NEVER,
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COMPARE_MAX_ENUM
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};
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/**
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* GPU APIs do the comparison in the opposite way of what makes sense for some
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* of love's APIs. For example in OpenGL if the compare function is GL_GREATER,
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* then the stencil test will pass if the reference value is greater than the
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* value in the stencil buffer. With our stencil API it's more intuitive to
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* assume that setStencilTest(COMPARE_GREATER, 4) will make it pass if the
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* stencil buffer has a value greater than 4.
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**/
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CompareMode getReversedCompareMode(CompareMode mode);
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bool getConstant(const char *in, StencilAction &out);
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bool getConstant(StencilAction in, const char *&out);
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std::vector<std::string> getConstants(StencilAction);
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bool getConstant(const char *in, CompareMode &out);
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bool getConstant(CompareMode in, const char *&out);
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std::vector<std::string> getConstants(CompareMode);
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} // graphics
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} // love
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