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49 lines
719 B
C
49 lines
719 B
C
/*
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* Copyright (c), Recep Aslantas.
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*
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* MIT License (MIT), http://opensource.org/licenses/MIT
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* Full license can be found in the LICENSE file
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*/
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#ifndef cglm_util_h
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#define cglm_util_h
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#include "cglm-common.h"
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/*!
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* @brief get sign of 32 bit integer as +1 or -1
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*
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* @param X integer value
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*/
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CGLM_INLINE
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int
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glm_sign(int val) {
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return ((val >> 31) - (-val >> 31));
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}
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CGLM_INLINE
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float
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glm_rad(float deg) {
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return deg * CGLM_PI / 180.0f;
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}
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CGLM_INLINE
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float
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glm_deg(float rad) {
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return rad * 180.0f / CGLM_PI;
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}
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CGLM_INLINE
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void
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glm_make_rad(float *deg) {
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*deg = *deg * CGLM_PI / 180.0f;
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}
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CGLM_INLINE
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void
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glm_make_deg(float *rad) {
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*rad = *rad * 180.0f / CGLM_PI;
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}
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#endif /* cglm_util_h */
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