/*

 Copyright (C) 2015 Apple Inc. All Rights Reserved.

 See LICENSE.txt for this sample’s licensing information

 Abstract:

 Utility methods for linear transformations of projective

  geometry of the left-handed coordinate system.

 */

#ifndef _AAPL_MATH_TRANSFORMS_H_

#define _AAPL_MATH_TRANSFORMS_H_

#import <simd/simd.h>

#ifdef __cplusplus

namespace AAPL

{

    namespace Math

    {

        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);

    } // Math

} // AAPL

#endif

#endif