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52 lines
1.7 KiB
C++
52 lines
1.7 KiB
C++
// SPDX-License-Identifier: MIT
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//
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// EmulationStation Desktop Edition
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// MathUtil.h
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//
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// Math utility functions.
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// The GLM library headers are also included from here.
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//
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#ifndef ES_CORE_UTILS_MATH_UTIL_H
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#define ES_CORE_UTILS_MATH_UTIL_H
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#include "glm/ext/matrix_clip_space.hpp"
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#include "glm/ext/matrix_transform.hpp"
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#include "glm/trigonometric.hpp"
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#include <string>
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namespace Utils
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{
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namespace Math
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{
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float smoothStep(const float left, const float right, const float value);
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float smootherStep(const float left, const float right, const float value);
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// Used for horizontal scrolling, e.g. long names in TextListComponent.
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float loop(const float delayTime,
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const float scrollTime,
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const float currentTime,
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const float scrollLength);
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// Variation of the loop, with an acceleration and deceleration at the start and ending.
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float bounce(const float delayTime,
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const float scrollTime,
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const float currentTime,
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const float scrollLength);
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// The MD5 functions are derived from the RSA Data Security, Inc. MD5 Message-Digest
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// Algorithm.
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std::string md5Hash(const std::string& data);
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void md5Update(const unsigned char* buf,
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unsigned int length,
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unsigned int (&state)[4],
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unsigned int (&count)[2],
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unsigned char (&buffer)[64]);
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void md5Transform(const unsigned char block[64], unsigned int (&state)[4]);
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} // namespace Math
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} // namespace Utils
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#endif // ES_CORE_UTILS_MATH_UTIL_H
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