cocos-engine-external/sources/rtm/impl/matrix_cast.h

298 lines
12 KiB
C++

#pragma once
////////////////////////////////////////////////////////////////////////////////
// The MIT License (MIT)
//
// Copyright (c) 2018 Nicholas Frechette & Realtime Math contributors
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
////////////////////////////////////////////////////////////////////////////////
#include "rtm/math.h"
#include "rtm/vector4f.h"
#include "rtm/vector4d.h"
#include "rtm/impl/compiler_utils.h"
RTM_IMPL_FILE_PRAGMA_PUSH
namespace rtm
{
namespace rtm_impl
{
//////////////////////////////////////////////////////////////////////////
// A helper struct to cast matrices with similar width.
//////////////////////////////////////////////////////////////////////////
template<typename src_matrix_type>
struct matrix_caster {};
template<>
struct matrix_caster<matrix3x3f>
{
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE constexpr explicit matrix_caster(const matrix3x3f& mtx_) RTM_NO_EXCEPT : mtx(mtx_) {}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE constexpr RTM_SIMD_CALL operator matrix3x3f() const RTM_NO_EXCEPT
{
return mtx;
}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE RTM_SIMD_CALL operator matrix3x3d() const RTM_NO_EXCEPT
{
return matrix3x3d{ vector_cast(mtx.x_axis), vector_cast(mtx.y_axis), vector_cast(mtx.z_axis) };
}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE RTM_SIMD_CALL operator matrix3x4f() const RTM_NO_EXCEPT
{
return matrix3x4f{ mtx.x_axis, mtx.y_axis, mtx.z_axis, vector_zero() };
}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE RTM_SIMD_CALL operator matrix3x4d() const RTM_NO_EXCEPT
{
const vector4d z_axis = vector_cast(mtx.z_axis);
return matrix3x4d{ vector_cast(mtx.x_axis), vector_cast(mtx.y_axis), z_axis, z_axis };
}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE constexpr RTM_SIMD_CALL operator matrix4x4f() const RTM_NO_EXCEPT
{
return matrix4x4f{ mtx.x_axis, mtx.y_axis, mtx.z_axis, mtx.z_axis };
}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE RTM_SIMD_CALL operator matrix4x4d() const RTM_NO_EXCEPT
{
const vector4d z_axis = vector_cast(mtx.z_axis);
return matrix4x4d{ vector_cast(mtx.x_axis), vector_cast(mtx.y_axis), z_axis, z_axis };
}
const matrix3x3f& mtx;
};
template<>
struct matrix_caster<matrix3x3d>
{
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE constexpr explicit matrix_caster(const matrix3x3d& mtx_) RTM_NO_EXCEPT : mtx(mtx_) {}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE RTM_SIMD_CALL operator matrix3x3f() const RTM_NO_EXCEPT
{
return matrix3x3f{ vector_cast(mtx.x_axis), vector_cast(mtx.y_axis), vector_cast(mtx.z_axis) };
}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE constexpr RTM_SIMD_CALL operator matrix3x3d() const RTM_NO_EXCEPT
{
return mtx;
}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE RTM_SIMD_CALL operator matrix3x4f() const RTM_NO_EXCEPT
{
const vector4f z_axis = vector_cast(mtx.z_axis);
return matrix3x4f{ vector_cast(mtx.x_axis), vector_cast(mtx.y_axis), z_axis, z_axis };
}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE RTM_SIMD_CALL operator matrix3x4d() const RTM_NO_EXCEPT
{
return matrix3x4d{ mtx.x_axis, mtx.y_axis, mtx.z_axis, vector_zero() };
}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE RTM_SIMD_CALL operator matrix4x4f() const RTM_NO_EXCEPT
{
const vector4f z_axis = vector_cast(mtx.z_axis);
return matrix4x4f{ vector_cast(mtx.x_axis), vector_cast(mtx.y_axis), z_axis, z_axis };
}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE constexpr RTM_SIMD_CALL operator matrix4x4d() const RTM_NO_EXCEPT
{
return matrix4x4d{ mtx.x_axis, mtx.y_axis, mtx.z_axis, mtx.z_axis };
}
const matrix3x3d& mtx;
};
template<>
struct matrix_caster<matrix3x4f>
{
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE constexpr explicit matrix_caster(const matrix3x4f& mtx_) RTM_NO_EXCEPT : mtx(mtx_) {}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE constexpr RTM_SIMD_CALL operator matrix3x3f() const RTM_NO_EXCEPT
{
return matrix3x3f{ mtx.x_axis, mtx.y_axis, mtx.z_axis };
}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE RTM_SIMD_CALL operator matrix3x3d() const RTM_NO_EXCEPT
{
return matrix3x3d{ vector_cast(mtx.x_axis), vector_cast(mtx.y_axis), vector_cast(mtx.z_axis) };
}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE constexpr RTM_SIMD_CALL operator matrix3x4f() const RTM_NO_EXCEPT
{
return mtx;
}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE RTM_SIMD_CALL operator matrix3x4d() const RTM_NO_EXCEPT
{
return matrix3x4d{ vector_cast(mtx.x_axis), vector_cast(mtx.y_axis), vector_cast(mtx.z_axis), vector_cast(mtx.w_axis) };
}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE RTM_SIMD_CALL operator matrix4x4f() const RTM_NO_EXCEPT
{
const scalarf zero = scalar_set(0.0F);
const scalarf one = scalar_set(1.0F);
return matrix4x4f{ vector_set_w(mtx.x_axis, zero), vector_set_w(mtx.y_axis, zero), vector_set_w(mtx.z_axis, zero), vector_set_w(mtx.w_axis, one) };
}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE RTM_SIMD_CALL operator matrix4x4d() const RTM_NO_EXCEPT
{
const scalarf zero = scalar_set(0.0F);
const scalarf one = scalar_set(1.0F);
return matrix4x4d{ vector_cast(vector_set_w(mtx.x_axis, zero)), vector_cast(vector_set_w(mtx.y_axis, zero)), vector_cast(vector_set_w(mtx.z_axis, zero)), vector_cast(vector_set_w(mtx.w_axis, one)) };
}
const matrix3x4f& mtx;
};
template<>
struct matrix_caster<matrix3x4d>
{
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE constexpr explicit matrix_caster(const matrix3x4d& mtx_) RTM_NO_EXCEPT : mtx(mtx_) {}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE RTM_SIMD_CALL operator matrix3x3f() const RTM_NO_EXCEPT
{
return matrix3x3f{ vector_cast(mtx.x_axis), vector_cast(mtx.y_axis), vector_cast(mtx.z_axis) };
}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE constexpr RTM_SIMD_CALL operator matrix3x3d() const RTM_NO_EXCEPT
{
return matrix3x3d{ mtx.x_axis, mtx.y_axis, mtx.z_axis };
}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE RTM_SIMD_CALL operator matrix3x4f() const RTM_NO_EXCEPT
{
return matrix3x4f{ vector_cast(mtx.x_axis), vector_cast(mtx.y_axis), vector_cast(mtx.z_axis), vector_cast(mtx.w_axis) };
}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE constexpr RTM_SIMD_CALL operator matrix3x4d() const RTM_NO_EXCEPT
{
return mtx;
}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE RTM_SIMD_CALL operator matrix4x4f() const RTM_NO_EXCEPT
{
const scalard zero = scalar_set(0.0);
const scalard one = scalar_set(1.0);
return matrix4x4f{ vector_cast(vector_set_w(mtx.x_axis, zero)), vector_cast(vector_set_w(mtx.y_axis, zero)), vector_cast(vector_set_w(mtx.z_axis, zero)), vector_cast(vector_set_w(mtx.w_axis, one)) };
}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE RTM_SIMD_CALL operator matrix4x4d() const RTM_NO_EXCEPT
{
const scalard zero = scalar_set(0.0);
const scalard one = scalar_set(1.0);
return matrix4x4d{ vector_set_w(mtx.x_axis, zero), vector_set_w(mtx.y_axis, zero), vector_set_w(mtx.z_axis, zero), vector_set_w(mtx.w_axis, one) };
}
const matrix3x4d& mtx;
};
template<>
struct matrix_caster<matrix4x4f>
{
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE constexpr explicit matrix_caster(const matrix4x4f& mtx_) RTM_NO_EXCEPT : mtx(mtx_) {}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE constexpr RTM_SIMD_CALL operator matrix3x3f() const RTM_NO_EXCEPT
{
return matrix3x3f{ mtx.x_axis, mtx.y_axis, mtx.z_axis };
}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE RTM_SIMD_CALL operator matrix3x3d() const RTM_NO_EXCEPT
{
return matrix3x3d{ vector_cast(mtx.x_axis), vector_cast(mtx.y_axis), vector_cast(mtx.z_axis) };
}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE constexpr RTM_SIMD_CALL operator matrix3x4f() const RTM_NO_EXCEPT
{
return matrix3x4f{ mtx.x_axis, mtx.y_axis, mtx.z_axis, mtx.w_axis };
}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE RTM_SIMD_CALL operator matrix3x4d() const RTM_NO_EXCEPT
{
return matrix3x4d{ vector_cast(mtx.x_axis), vector_cast(mtx.y_axis), vector_cast(mtx.z_axis), vector_cast(mtx.w_axis) };
}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE constexpr RTM_SIMD_CALL operator matrix4x4f() const RTM_NO_EXCEPT
{
return mtx;
}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE RTM_SIMD_CALL operator matrix4x4d() const RTM_NO_EXCEPT
{
return matrix4x4d{ vector_cast(mtx.x_axis), vector_cast(mtx.y_axis), vector_cast(mtx.z_axis), vector_cast(mtx.w_axis) };
}
const matrix4x4f& mtx;
};
template<>
struct matrix_caster<matrix4x4d>
{
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE constexpr explicit matrix_caster(const matrix4x4d& mtx_) RTM_NO_EXCEPT : mtx(mtx_) {}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE RTM_SIMD_CALL operator matrix3x3f() const RTM_NO_EXCEPT
{
return matrix3x3f{ vector_cast(mtx.x_axis), vector_cast(mtx.y_axis), vector_cast(mtx.z_axis) };
}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE constexpr RTM_SIMD_CALL operator matrix3x3d() const RTM_NO_EXCEPT
{
return matrix3x3d{ mtx.x_axis, mtx.y_axis, mtx.z_axis };
}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE RTM_SIMD_CALL operator matrix3x4f() const RTM_NO_EXCEPT
{
return matrix3x4f{ vector_cast(mtx.x_axis), vector_cast(mtx.y_axis), vector_cast(mtx.z_axis), vector_cast(mtx.w_axis) };
}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE constexpr RTM_SIMD_CALL operator matrix3x4d() const RTM_NO_EXCEPT
{
return matrix3x4d{ mtx.x_axis, mtx.y_axis, mtx.z_axis, mtx.w_axis };
}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE RTM_SIMD_CALL operator matrix4x4f() const RTM_NO_EXCEPT
{
return matrix4x4f{ vector_cast(mtx.x_axis), vector_cast(mtx.y_axis), vector_cast(mtx.z_axis), vector_cast(mtx.w_axis) };
}
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE constexpr RTM_SIMD_CALL operator matrix4x4d() const RTM_NO_EXCEPT
{
return mtx;
}
const matrix4x4d& mtx;
};
}
//////////////////////////////////////////////////////////////////////////
// Casts a matrix from one variant to another.
// Note: When casting a smaller matrix into a larger one, new elements are
// undefined.
//////////////////////////////////////////////////////////////////////////
template<typename matrix_type>
RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE constexpr rtm_impl::matrix_caster<matrix_type> RTM_SIMD_CALL matrix_cast(const matrix_type& input) RTM_NO_EXCEPT
{
return rtm_impl::matrix_caster<matrix_type>(input);
}
}
RTM_IMPL_FILE_PRAGMA_POP