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/*
* Copyright (c), Recep Aslantas.
*
* MIT License (MIT), http://opensource.org/licenses/MIT
* Full license can be found in the LICENSE file
*/
#ifndef cglm_common_h
#define cglm_common_h
#define __cglm__ 1
#ifndef _USE_MATH_DEFINES
# define _USE_MATH_DEFINES /* for windows */
#endif
#ifndef _CRT_SECURE_NO_WARNINGS
# define _CRT_SECURE_NO_WARNINGS /* for windows */
#endif
#include <stdint.h>
#include <stddef.h>
#include <stdlib.h>
#include <math.h>
#include <float.h>
#include <stdbool.h>
#if defined(_MSC_VER)
# ifdef CGLM_STATIC
# define CGLM_EXPORT
# elif defined(CGLM_EXPORTS)
# define CGLM_EXPORT __declspec(dllexport)
# else
# define CGLM_EXPORT __declspec(dllimport)
# endif
# define CGLM_INLINE __forceinline
#else
# define CGLM_EXPORT __attribute__((visibility("default")))
# define CGLM_INLINE static inline __attribute((always_inline))
#endif
#if defined(__GNUC__) || defined(__clang__)
# define CGLM_UNLIKELY(expr) __builtin_expect(!!(expr), 0)
# define CGLM_LIKELY(expr) __builtin_expect(!!(expr), 1)
#else
# define CGLM_UNLIKELY(expr) (expr)
# define CGLM_LIKELY(expr) (expr)
#endif
#if defined(_M_FP_FAST) || defined(__FAST_MATH__)
# define CGLM_FAST_MATH
#endif
#define GLM_SHUFFLE4(z, y, x, w) (((z) << 6) | ((y) << 4) | ((x) << 2) | (w))
#define GLM_SHUFFLE3(z, y, x) (((z) << 4) | ((y) << 2) | (x))
#define GLM_SHUFFLE2(y, x) (((y) << 2) | (x))
#include "types.h"
#include "simd/intrin.h"
#ifndef CGLM_USE_DEFAULT_EPSILON
# ifndef GLM_FLT_EPSILON
# define GLM_FLT_EPSILON 1e-5f
# endif
#else
# define GLM_FLT_EPSILON FLT_EPSILON
#endif
/*
* Clip control: define CGLM_FORCE_DEPTH_ZERO_TO_ONE before including
* CGLM to use a clip space between 0 to 1.
* Coordinate system: define CGLM_FORCE_LEFT_HANDED before including
* CGLM to use the left handed coordinate system by default.
*/
#define CGLM_CLIP_CONTROL_ZO_BIT (1 << 0) /* ZERO_TO_ONE */
#define CGLM_CLIP_CONTROL_NO_BIT (1 << 1) /* NEGATIVE_ONE_TO_ONE */
#define CGLM_CLIP_CONTROL_LH_BIT (1 << 2) /* LEFT_HANDED, For DirectX, Metal, Vulkan */
#define CGLM_CLIP_CONTROL_RH_BIT (1 << 3) /* RIGHT_HANDED, For OpenGL, default in GLM */
#define CGLM_CLIP_CONTROL_LH_ZO (CGLM_CLIP_CONTROL_LH_BIT | CGLM_CLIP_CONTROL_ZO_BIT)
#define CGLM_CLIP_CONTROL_LH_NO (CGLM_CLIP_CONTROL_LH_BIT | CGLM_CLIP_CONTROL_NO_BIT)
#define CGLM_CLIP_CONTROL_RH_ZO (CGLM_CLIP_CONTROL_RH_BIT | CGLM_CLIP_CONTROL_ZO_BIT)
#define CGLM_CLIP_CONTROL_RH_NO (CGLM_CLIP_CONTROL_RH_BIT | CGLM_CLIP_CONTROL_NO_BIT)
#ifdef CGLM_FORCE_DEPTH_ZERO_TO_ONE
# ifdef CGLM_FORCE_LEFT_HANDED
# define CGLM_CONFIG_CLIP_CONTROL CGLM_CLIP_CONTROL_LH_ZO
# else
# define CGLM_CONFIG_CLIP_CONTROL CGLM_CLIP_CONTROL_RH_ZO
# endif
#else
# ifdef CGLM_FORCE_LEFT_HANDED
# define CGLM_CONFIG_CLIP_CONTROL CGLM_CLIP_CONTROL_LH_NO
# else
# define CGLM_CONFIG_CLIP_CONTROL CGLM_CLIP_CONTROL_RH_NO
# endif
#endif
/* struct API configurator */
/* TODO: move struct/common.h? */
/* WARN: dont use concant helpers outside cglm headers, because they may be changed */
#define CGLM_MACRO_CONCAT_HELPER(A, B, C, D, E, ...) A ## B ## C ## D ## E ## __VA_ARGS__
#define CGLM_MACRO_CONCAT(A, B, C, D, E, ...) CGLM_MACRO_CONCAT_HELPER(A, B, C, D, E,__VA_ARGS__)
#ifndef CGLM_OMIT_NS_FROM_STRUCT_API
# ifndef CGLM_STRUCT_API_NS
# define CGLM_STRUCT_API_NS glms
# endif
# ifndef CGLM_STRUCT_API_NS_SEPERATOR
# define CGLM_STRUCT_API_NS_SEPERATOR _
# endif
#else
# define CGLM_STRUCT_API_NS
# define CGLM_STRUCT_API_NS_SEPERATOR
#endif
#ifndef CGLM_STRUCT_API_NAME_SUFFIX
# define CGLM_STRUCT_API_NAME_SUFFIX
#endif
#define CGLM_STRUCTAPI(A, ...) CGLM_MACRO_CONCAT(CGLM_STRUCT_API_NS, \
CGLM_STRUCT_API_NS_SEPERATOR, \
A, \
CGLM_STRUCT_API_NAME_SUFFIX, \
_, \
__VA_ARGS__)
#endif /* cglm_common_h */
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