96 lines
3.3 KiB
C
96 lines
3.3 KiB
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_types_h
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#define cglm_types_h
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#if defined(_MSC_VER)
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/* do not use alignment for older visual studio versions */
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# if _MSC_VER < 1913 /* Visual Studio 2017 version 15.6 */
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# define CGLM_ALL_UNALIGNED
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# define CGLM_ALIGN(X) /* no alignment */
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# else
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# define CGLM_ALIGN(X) __declspec(align(X))
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# endif
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#else
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# define CGLM_ALIGN(X) __attribute((aligned(X)))
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#endif
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#ifndef CGLM_ALL_UNALIGNED
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# define CGLM_ALIGN_IF(X) CGLM_ALIGN(X)
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#else
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# define CGLM_ALIGN_IF(X) /* no alignment */
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#endif
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#ifdef __AVX__
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# define CGLM_ALIGN_MAT CGLM_ALIGN(32)
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#else
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# define CGLM_ALIGN_MAT CGLM_ALIGN(16)
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#endif
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#ifdef __GNUC__
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# define CGLM_ASSUME_ALIGNED(expr, alignment) \
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__builtin_assume_aligned((expr), (alignment))
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#else
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# define CGLM_ASSUME_ALIGNED(expr, alignment) (expr)
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#endif
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#define CGLM_CASTPTR_ASSUME_ALIGNED(expr, type) \
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((type*)CGLM_ASSUME_ALIGNED((expr), __alignof__(type)))
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typedef int ivec2[2];
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typedef int ivec3[3];
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typedef int ivec4[4];
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typedef float vec2[2];
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typedef float vec3[3];
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typedef CGLM_ALIGN_IF(16) float vec4[4];
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typedef vec4 versor; /* |x, y, z, w| -> w is the last */
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typedef vec3 mat3[3];
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typedef CGLM_ALIGN_IF(16) vec2 mat2[2];
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typedef CGLM_ALIGN_MAT vec4 mat4[4];
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/*
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Important: cglm stores quaternion as [x, y, z, w] in memory since v0.4.0
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it was [w, x, y, z] before v0.4.0 ( v0.3.5 and earlier ). w is real part.
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*/
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#define GLM_E 2.71828182845904523536028747135266250 /* e */
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#define GLM_LOG2E 1.44269504088896340735992468100189214 /* log2(e) */
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#define GLM_LOG10E 0.434294481903251827651128918916605082 /* log10(e) */
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#define GLM_LN2 0.693147180559945309417232121458176568 /* loge(2) */
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#define GLM_LN10 2.30258509299404568401799145468436421 /* loge(10) */
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#define GLM_PI 3.14159265358979323846264338327950288 /* pi */
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#define GLM_PI_2 1.57079632679489661923132169163975144 /* pi/2 */
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#define GLM_PI_4 0.785398163397448309615660845819875721 /* pi/4 */
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#define GLM_1_PI 0.318309886183790671537767526745028724 /* 1/pi */
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#define GLM_2_PI 0.636619772367581343075535053490057448 /* 2/pi */
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#define GLM_2_SQRTPI 1.12837916709551257389615890312154517 /* 2/sqrt(pi) */
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#define GLM_SQRT2 1.41421356237309504880168872420969808 /* sqrt(2) */
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#define GLM_SQRT1_2 0.707106781186547524400844362104849039 /* 1/sqrt(2) */
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#define GLM_Ef ((float)GLM_E)
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#define GLM_LOG2Ef ((float)GLM_LOG2E)
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#define GLM_LOG10Ef ((float)GLM_LOG10E)
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#define GLM_LN2f ((float)GLM_LN2)
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#define GLM_LN10f ((float)GLM_LN10)
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#define GLM_PIf ((float)GLM_PI)
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#define GLM_PI_2f ((float)GLM_PI_2)
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#define GLM_PI_4f ((float)GLM_PI_4)
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#define GLM_1_PIf ((float)GLM_1_PI)
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#define GLM_2_PIf ((float)GLM_2_PI)
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#define GLM_2_SQRTPIf ((float)GLM_2_SQRTPI)
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#define GLM_SQRT2f ((float)GLM_SQRT2)
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#define GLM_SQRT1_2f ((float)GLM_SQRT1_2)
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/* DEPRECATED! use GLM_PI and friends */
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#define CGLM_PI GLM_PIf
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#define CGLM_PI_2 GLM_PI_2f
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#define CGLM_PI_4 GLM_PI_4f
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#endif /* cglm_types_h */
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