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