76 lines
1.1 KiB
C
76 lines
1.1 KiB
C
#pragma once
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#ifdef _3DS
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#include <3ds.h>
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#else
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#include <stdbool.h>
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#include <stdint.h>
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typedef uint8_t u8;
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typedef uint32_t u32;
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#endif
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typedef u32 C3D_IVec;
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static inline C3D_IVec IVec_Pack(u8 x, u8 y, u8 z, u8 w)
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{
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return (u32)x | ((u32)y << 8) | ((u32)z << 16) | ((u32)w << 24);
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}
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/**
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* @defgroup math_support Math Support Library
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* @brief Implementations of matrix, vector, and quaternion operations.
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* @{
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*/
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/**
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* @struct C3D_FVec
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* @brief Float vector
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*
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* Matches PICA layout
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*/
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typedef union
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{
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/**
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* @brief Vector access
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*/
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struct
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{
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float w; ///< W-component
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float z; ///< Z-component
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float y; ///< Y-component
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float x; ///< X-component
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};
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/**
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* @brief Quaternion access
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*/
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struct
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{
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float r; ///< Real component
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float k; ///< K-component
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float j; ///< J-component
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float i; ///< I-component
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};
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/**
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* @brief Raw access
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*/
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float c[4];
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} C3D_FVec;
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/**
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* @struct C3D_FQuat
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* @brief Float quaternion. See @ref C3D_FVec.
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*/
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typedef C3D_FVec C3D_FQuat;
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/**
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* @struct C3D_Mtx
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* @brief Row-major 4x4 matrix
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*/
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typedef union
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{
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C3D_FVec r[4]; ///< Rows are vectors
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float m[4*4]; ///< Raw access
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} C3D_Mtx;
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/** @} */
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