/*
See LICENSE folder for this sample’s licensing information.

Abstract:
Contains geometrical transformations for vectors
*/

#ifndef _METAL_MATH_TRANSFORMS_H_
#define _METAL_MATH_TRANSFORMS_H_

#import <simd/simd.h>

#ifdef __cplusplus

namespace AAPL
{
    float radians(const float& degrees);
    
    simd::float4x4 scale(const float& x,
                         const float& y,
                         const float& z);
    
    simd::float4x4 scale(const simd::float3& s);
    
    simd::float4x4 translate(const float& x,
                             const float& y,
                             const float& z);
    
    simd::float4x4 translate(const simd::float3& t);
    
    simd::float4x4 rotate(const float& angle,
                          const float& x,
                          const float& y,
                          const float& z);
    
    simd::float4x4 rotate(const float& angle,
                          const simd::float3& u);
    
    simd::float4x4 frustum(const float& fovH,
                           const float& fovV,
                           const float& near,
                           const float& far);
    
    simd::float4x4 frustum(const float& left,
                           const float& right,
                           const float& bottom,
                           const float& top,
                           const float& near,
                           const float& far);
    
    simd::float4x4 frustum_oc(const float& left,
                              const float& right,
                              const float& bottom,
                              const float& top,
                              const float& near,
                              const float& far);
    
    simd::float4x4 lookAt(const float * const pEye,
                          const float * const pCenter,
                          const float * const pUp);
    
    simd::float4x4 lookAt(const simd::float3& eye,
                          const simd::float3& center,
                          const simd::float3& up);
    
    simd::float4x4 perspective(const float& width,
                               const float& height,
                               const float& near,
                               const float& far);
    
    simd::float4x4 perspective_fov(const float& fovy,
                                   const float& aspect,
                                   const float& near,
                                   const float& far);
    
    simd::float4x4 perspective_fov(const float& fovy,
                                   const float& width,
                                   const float& height,
                                   const float& near,
                                   const float& far);
    
    simd::float4x4 ortho2d_oc(const float& left,
                              const float& right,
                              const float& bottom,
                              const float& top,
                              const float& near,
                              const float& far);
    
    simd::float4x4 ortho2d_oc(const simd::float3& origin,
                              const simd::float3& size);
    
    simd::float4x4 ortho2d(const float& left,
                           const float& right,
                           const float& bottom,
                           const float& top,
                           const float& near,
                           const float& far);
    
    simd::float4x4 ortho2d(const simd::float3& origin,
                           const simd::float3& size);
} // AAPL

#endif

#endif