101 lines
3.8 KiB
C++
101 lines
3.8 KiB
C++
#pragma once
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////////////////////////////////////////////////////////////////////////////////
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// The MIT License (MIT)
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//
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// Copyright (c) 2019 Nicholas Frechette & Realtime Math contributors
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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////////////////////////////////////////////////////////////////////////////////
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#include "rtm/math.h"
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#include "rtm/impl/compiler_utils.h"
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RTM_IMPL_FILE_PRAGMA_PUSH
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namespace rtm
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{
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namespace rtm_impl
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{
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//////////////////////////////////////////////////////////////////////////
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// This is a helper struct to allow a single consistent API between
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// various scalar types when the semantics are identical but the return
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// type differs. Implicit coercion is used to return the desired value
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// at the call site.
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//////////////////////////////////////////////////////////////////////////
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struct scalar_loaderf
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{
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RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE constexpr RTM_SIMD_CALL operator float() const RTM_NO_EXCEPT
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{
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return *ptr;
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}
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#if defined(RTM_SSE2_INTRINSICS)
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RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE RTM_SIMD_CALL operator scalarf() const RTM_NO_EXCEPT
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{
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return scalarf{ _mm_load_ss(ptr) };
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}
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#endif
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const float* ptr;
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};
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//////////////////////////////////////////////////////////////////////////
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// This is a helper struct to allow a single consistent API between
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// various scalar types when the semantics are identical but the return
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// type differs. Implicit coercion is used to return the desired value
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// at the call site.
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//////////////////////////////////////////////////////////////////////////
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struct scalar_loaderd
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{
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RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE constexpr RTM_SIMD_CALL operator double() const RTM_NO_EXCEPT
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{
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return *ptr;
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}
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#if defined(RTM_SSE2_INTRINSICS)
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RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE RTM_SIMD_CALL operator scalard() const RTM_NO_EXCEPT
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{
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return scalard{ _mm_load_sd(ptr) };
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}
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#endif
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const double* ptr;
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};
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}
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//////////////////////////////////////////////////////////////////////////
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// Loads a scalar from memory.
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//////////////////////////////////////////////////////////////////////////
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RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE constexpr rtm_impl::scalar_loaderf RTM_SIMD_CALL scalar_load(const float* input) RTM_NO_EXCEPT
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{
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return rtm_impl::scalar_loaderf{ input };
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}
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//////////////////////////////////////////////////////////////////////////
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// Loads a scalar from memory.
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//////////////////////////////////////////////////////////////////////////
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RTM_DISABLE_SECURITY_COOKIE_CHECK RTM_FORCE_INLINE constexpr rtm_impl::scalar_loaderd RTM_SIMD_CALL scalar_load(const double* input) RTM_NO_EXCEPT
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{
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return rtm_impl::scalar_loaderd{ input };
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}
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}
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RTM_IMPL_FILE_PRAGMA_POP
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