1 /* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #define LOG_TAG "StrictMath" 18 19 #include "../../external/fdlibm/fdlibm.h" 20 21 #include "jni.h" 22 #include "JNIHelp.h" 23 #include "JniConstants.h" 24 StrictMath_sin(JNIEnv *,jclass,jdouble a)25 static jdouble StrictMath_sin(JNIEnv*, jclass, jdouble a) { 26 return ieee_sin(a); 27 } 28 StrictMath_cos(JNIEnv *,jclass,jdouble a)29 static jdouble StrictMath_cos(JNIEnv*, jclass, jdouble a) { 30 return ieee_cos(a); 31 } 32 StrictMath_tan(JNIEnv *,jclass,jdouble a)33 static jdouble StrictMath_tan(JNIEnv*, jclass, jdouble a) { 34 return ieee_tan(a); 35 } 36 StrictMath_asin(JNIEnv *,jclass,jdouble a)37 static jdouble StrictMath_asin(JNIEnv*, jclass, jdouble a) { 38 return ieee_asin(a); 39 } 40 StrictMath_acos(JNIEnv *,jclass,jdouble a)41 static jdouble StrictMath_acos(JNIEnv*, jclass, jdouble a) { 42 return ieee_acos(a); 43 } 44 StrictMath_atan(JNIEnv *,jclass,jdouble a)45 static jdouble StrictMath_atan(JNIEnv*, jclass, jdouble a) { 46 return ieee_atan(a); 47 } 48 StrictMath_exp(JNIEnv *,jclass,jdouble a)49 static jdouble StrictMath_exp(JNIEnv*, jclass, jdouble a) { 50 return ieee_exp(a); 51 } 52 StrictMath_log(JNIEnv *,jclass,jdouble a)53 static jdouble StrictMath_log(JNIEnv*, jclass, jdouble a) { 54 return ieee_log(a); 55 } 56 StrictMath_sqrt(JNIEnv *,jclass,jdouble a)57 static jdouble StrictMath_sqrt(JNIEnv*, jclass, jdouble a) { 58 return ieee_sqrt(a); 59 } 60 StrictMath_IEEEremainder(JNIEnv *,jclass,jdouble a,jdouble b)61 static jdouble StrictMath_IEEEremainder(JNIEnv*, jclass, jdouble a, jdouble b) { 62 return ieee_remainder(a, b); 63 } 64 StrictMath_floor(JNIEnv *,jclass,jdouble a)65 static jdouble StrictMath_floor(JNIEnv*, jclass, jdouble a) { 66 return ieee_floor(a); 67 } 68 StrictMath_ceil(JNIEnv *,jclass,jdouble a)69 static jdouble StrictMath_ceil(JNIEnv*, jclass, jdouble a) { 70 return ieee_ceil(a); 71 } 72 StrictMath_rint(JNIEnv *,jclass,jdouble a)73 static jdouble StrictMath_rint(JNIEnv*, jclass, jdouble a) { 74 return ieee_rint(a); 75 } 76 StrictMath_atan2(JNIEnv *,jclass,jdouble a,jdouble b)77 static jdouble StrictMath_atan2(JNIEnv*, jclass, jdouble a, jdouble b) { 78 return ieee_atan2(a, b); 79 } 80 StrictMath_pow(JNIEnv *,jclass,jdouble a,jdouble b)81 static jdouble StrictMath_pow(JNIEnv*, jclass, jdouble a, jdouble b) { 82 return ieee_pow(a,b); 83 } 84 StrictMath_sinh(JNIEnv *,jclass,jdouble a)85 static jdouble StrictMath_sinh(JNIEnv*, jclass, jdouble a) { 86 return ieee_sinh(a); 87 } 88 StrictMath_tanh(JNIEnv *,jclass,jdouble a)89 static jdouble StrictMath_tanh(JNIEnv*, jclass, jdouble a) { 90 return ieee_tanh(a); 91 } 92 StrictMath_cosh(JNIEnv *,jclass,jdouble a)93 static jdouble StrictMath_cosh(JNIEnv*, jclass, jdouble a) { 94 return ieee_cosh(a); 95 } 96 StrictMath_log10(JNIEnv *,jclass,jdouble a)97 static jdouble StrictMath_log10(JNIEnv*, jclass, jdouble a) { 98 return ieee_log10(a); 99 } 100 StrictMath_cbrt(JNIEnv *,jclass,jdouble a)101 static jdouble StrictMath_cbrt(JNIEnv*, jclass, jdouble a) { 102 return ieee_cbrt(a); 103 } 104 StrictMath_expm1(JNIEnv *,jclass,jdouble a)105 static jdouble StrictMath_expm1(JNIEnv*, jclass, jdouble a) { 106 return ieee_expm1(a); 107 } 108 StrictMath_hypot(JNIEnv *,jclass,jdouble a,jdouble b)109 static jdouble StrictMath_hypot(JNIEnv*, jclass, jdouble a, jdouble b) { 110 return ieee_hypot(a, b); 111 } 112 StrictMath_log1p(JNIEnv *,jclass,jdouble a)113 static jdouble StrictMath_log1p(JNIEnv*, jclass, jdouble a) { 114 return ieee_log1p(a); 115 } 116 StrictMath_nextafter(JNIEnv *,jclass,jdouble a,jdouble b)117 static jdouble StrictMath_nextafter(JNIEnv*, jclass, jdouble a, jdouble b) { 118 return ieee_nextafter(a, b); 119 } 120 121 extern jint Float_floatToRawIntBits(JNIEnv*, jclass, jfloat); 122 extern jfloat Float_intBitsToFloat(JNIEnv*, jclass, jint val); 123 124 // TODO: we should make Float.floatToRawBits and Float.intBitsToFloat intrinsics, and move 125 // this kind of code into Java. StrictMath_nextafterf(JNIEnv *,jclass,jfloat arg1,jfloat arg2)126 static jfloat StrictMath_nextafterf(JNIEnv*, jclass, jfloat arg1, jfloat arg2) { 127 jint hx = Float_floatToRawIntBits(NULL, NULL, arg1); 128 jint hy = Float_floatToRawIntBits(NULL, NULL, arg2); 129 130 if (!(hx & 0x7fffffff)) { /* arg1 == 0 */ 131 return Float_intBitsToFloat(NULL, NULL, (hy & 0x80000000) | 0x1); 132 } 133 134 if ((hx > 0) ^ (hx > hy)) { /* |arg1| < |arg2| */ 135 hx += 1; 136 } else { 137 hx -= 1; 138 } 139 return Float_intBitsToFloat(NULL, NULL, hx); 140 } 141 142 static JNINativeMethod gMethods[] = { 143 NATIVE_METHOD(StrictMath, IEEEremainder, "(DD)D"), 144 NATIVE_METHOD(StrictMath, acos, "(D)D"), 145 NATIVE_METHOD(StrictMath, asin, "(D)D"), 146 NATIVE_METHOD(StrictMath, atan, "(D)D"), 147 NATIVE_METHOD(StrictMath, atan2, "(DD)D"), 148 NATIVE_METHOD(StrictMath, cbrt, "(D)D"), 149 NATIVE_METHOD(StrictMath, ceil, "(D)D"), 150 NATIVE_METHOD(StrictMath, cos, "(D)D"), 151 NATIVE_METHOD(StrictMath, cosh, "(D)D"), 152 NATIVE_METHOD(StrictMath, exp, "(D)D"), 153 NATIVE_METHOD(StrictMath, expm1, "(D)D"), 154 NATIVE_METHOD(StrictMath, floor, "(D)D"), 155 NATIVE_METHOD(StrictMath, hypot, "(DD)D"), 156 NATIVE_METHOD(StrictMath, log, "(D)D"), 157 NATIVE_METHOD(StrictMath, log10, "(D)D"), 158 NATIVE_METHOD(StrictMath, log1p, "(D)D"), 159 NATIVE_METHOD(StrictMath, nextafter, "(DD)D"), 160 NATIVE_METHOD(StrictMath, nextafterf, "(FF)F"), 161 NATIVE_METHOD(StrictMath, pow, "(DD)D"), 162 NATIVE_METHOD(StrictMath, rint, "(D)D"), 163 NATIVE_METHOD(StrictMath, sin, "(D)D"), 164 NATIVE_METHOD(StrictMath, sinh, "(D)D"), 165 NATIVE_METHOD(StrictMath, sqrt, "(D)D"), 166 NATIVE_METHOD(StrictMath, tan, "(D)D"), 167 NATIVE_METHOD(StrictMath, tanh, "(D)D"), 168 }; 169 register_java_lang_StrictMath(JNIEnv * env)170 int register_java_lang_StrictMath(JNIEnv* env) { 171 return jniRegisterNativeMethods(env, "java/lang/StrictMath", gMethods, NELEM(gMethods)); 172 } 173