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126 lines
3.6 KiB
126 lines
3.6 KiB
/*
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* Copyright (c) 2014 Advanced Micro Devices, Inc.
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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
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* all 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
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* THE SOFTWARE.
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*/
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#include <clc/clc.h>
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_CLC_OVERLOAD _CLC_DEF float length(float p) {
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return fabs(p);
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}
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#define V_FLENGTH(p) \
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float l2 = dot(p, p); \
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\
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if (l2 < FLT_MIN) { \
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p *= 0x1.0p+86F; \
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return sqrt(dot(p, p)) * 0x1.0p-86F; \
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} else if (l2 == INFINITY) { \
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p *= 0x1.0p-65F; \
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return sqrt(dot(p, p)) * 0x1.0p+65F; \
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} \
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\
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return sqrt(l2);
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_CLC_OVERLOAD _CLC_DEF float length(float2 p) {
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V_FLENGTH(p);
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}
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_CLC_OVERLOAD _CLC_DEF float length(float3 p) {
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V_FLENGTH(p);
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}
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_CLC_OVERLOAD _CLC_DEF float length(float4 p) {
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V_FLENGTH(p);
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}
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#ifdef cl_khr_fp64
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#pragma OPENCL EXTENSION cl_khr_fp64 : enable
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_CLC_OVERLOAD _CLC_DEF double length(double p){
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return fabs(p);
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}
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#define V_DLENGTH(p) \
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double l2 = dot(p, p); \
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\
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if (l2 < DBL_MIN) { \
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p *= 0x1.0p+563; \
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return sqrt(dot(p, p)) * 0x1.0p-563; \
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} else if (l2 == INFINITY) { \
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p *= 0x1.0p-513; \
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return sqrt(dot(p, p)) * 0x1.0p+513; \
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} \
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\
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return sqrt(l2);
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_CLC_OVERLOAD _CLC_DEF double length(double2 p) {
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V_DLENGTH(p);
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}
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_CLC_OVERLOAD _CLC_DEF double length(double3 p) {
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V_DLENGTH(p);
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}
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_CLC_OVERLOAD _CLC_DEF double length(double4 p) {
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V_DLENGTH(p);
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}
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#endif
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#ifdef cl_khr_fp16
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#pragma OPENCL EXTENSION cl_khr_fp16 : enable
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_CLC_OVERLOAD _CLC_DEF half length(half p){
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return fabs(p);
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}
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// Only available in CLC1.2
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#ifndef HALF_MIN
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#define HALF_MIN 0x1.0p-14h
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#endif
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#define V_HLENGTH(p) \
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half l2 = dot(p, p); \
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\
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if (l2 < HALF_MIN) { \
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p *= 0x1.0p+12h; \
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return sqrt(dot(p, p)) * 0x1.0p-12h; \
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} else if (l2 == INFINITY) { \
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p *= 0x1.0p-7h; \
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return sqrt(dot(p, p)) * 0x1.0p+7h; \
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} \
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\
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return sqrt(l2);
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_CLC_OVERLOAD _CLC_DEF half length(half2 p) {
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V_HLENGTH(p);
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}
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_CLC_OVERLOAD _CLC_DEF half length(half3 p) {
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V_HLENGTH(p);
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}
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_CLC_OVERLOAD _CLC_DEF half length(half4 p) {
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V_HLENGTH(p);
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}
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#endif
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