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20 lines
653 B
C++
20 lines
653 B
C++
#include "removedalphafunc.hpp"
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#include <cassert>
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#include <osg/State>
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namespace Shader
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{
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std::array<osg::ref_ptr<RemovedAlphaFunc>, GL_ALWAYS - GL_NEVER + 1> RemovedAlphaFunc::sInstances{ nullptr, nullptr,
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nullptr, nullptr, nullptr, nullptr, nullptr, nullptr };
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osg::ref_ptr<RemovedAlphaFunc> RemovedAlphaFunc::getInstance(GLenum func)
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{
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assert(func >= GL_NEVER && func <= GL_ALWAYS);
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if (!sInstances[func - GL_NEVER])
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sInstances[func - GL_NEVER]
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= new RemovedAlphaFunc(static_cast<osg::AlphaFunc::ComparisonFunction>(func), 1.0);
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return sInstances[func - GL_NEVER];
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}
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}
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