1 /* 2 * Copyright (C) 2010 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 #include <stdio.h> 18 #include <assert.h> 19 20 #include "jni.h" 21 #include "core_jni_helpers.h" 22 #include <utils/misc.h> 23 24 // ---------------------------------------------------------------------------- 25 26 namespace android { 27 28 // ---------------------------------------------------------------------------- 29 30 const char* const kClassPathName = "android/animation/PropertyValuesHolder"; 31 32 static jlong android_animation_PropertyValuesHolder_getIntMethod( 33 JNIEnv* env, jclass pvhClass, jclass targetClass, jstring methodName) 34 { 35 const char *nativeString = env->GetStringUTFChars(methodName, 0); 36 jmethodID mid = env->GetMethodID(targetClass, nativeString, "(I)V"); 37 env->ReleaseStringUTFChars(methodName, nativeString); 38 return reinterpret_cast<jlong>(mid); 39 } 40 41 static jlong android_animation_PropertyValuesHolder_getFloatMethod( 42 JNIEnv* env, jclass pvhClass, jclass targetClass, jstring methodName) 43 { 44 const char *nativeString = env->GetStringUTFChars(methodName, 0); 45 jmethodID mid = env->GetMethodID(targetClass, nativeString, "(F)V"); 46 env->ReleaseStringUTFChars(methodName, nativeString); 47 return reinterpret_cast<jlong>(mid); 48 } 49 50 static jlong getMultiparameterMethod(JNIEnv* env, jclass targetClass, jstring methodName, 51 jint parameterCount, char parameterType) 52 { 53 const char *nativeString = env->GetStringUTFChars(methodName, 0); 54 char *signature = new char[parameterCount + 4]; 55 signature[0] = '('; 56 memset(&(signature[1]), parameterType, parameterCount); 57 strcpy(&(signature[parameterCount + 1]), ")V"); 58 jmethodID mid = env->GetMethodID(targetClass, nativeString, signature); 59 delete[] signature; 60 env->ReleaseStringUTFChars(methodName, nativeString); 61 return reinterpret_cast<jlong>(mid); 62 } 63 64 static jlong android_animation_PropertyValuesHolder_getMultipleFloatMethod( 65 JNIEnv* env, jclass pvhClass, jclass targetClass, jstring methodName, jint parameterCount) 66 { 67 return getMultiparameterMethod(env, targetClass, methodName, parameterCount, 'F'); 68 } 69 70 static jlong android_animation_PropertyValuesHolder_getMultipleIntMethod( 71 JNIEnv* env, jclass pvhClass, jclass targetClass, jstring methodName, jint parameterCount) 72 { 73 return getMultiparameterMethod(env, targetClass, methodName, parameterCount, 'I'); 74 } 75 76 static void android_animation_PropertyValuesHolder_callIntMethod( 77 JNIEnv* env, jclass pvhObject, jobject target, jlong methodID, jint arg) 78 { 79 env->CallVoidMethod(target, reinterpret_cast<jmethodID>(methodID), arg); 80 } 81 82 static void android_animation_PropertyValuesHolder_callFloatMethod( 83 JNIEnv* env, jclass pvhObject, jobject target, jlong methodID, jfloat arg) 84 { 85 env->CallVoidMethod(target, reinterpret_cast<jmethodID>(methodID), arg); 86 } 87 88 static void android_animation_PropertyValuesHolder_callTwoFloatMethod( 89 JNIEnv* env, jclass pvhObject, jobject target, jlong methodID, float arg1, float arg2) 90 { 91 env->CallVoidMethod(target, reinterpret_cast<jmethodID>(methodID), arg1, arg2); 92 } 93 94 static void android_animation_PropertyValuesHolder_callFourFloatMethod( 95 JNIEnv* env, jclass pvhObject, jobject target, jlong methodID, float arg1, float arg2, 96 float arg3, float arg4) 97 { 98 env->CallVoidMethod(target, reinterpret_cast<jmethodID>(methodID), arg1, arg2, arg3, arg4); 99 } 100 101 static void android_animation_PropertyValuesHolder_callMultipleFloatMethod( 102 JNIEnv* env, jclass pvhObject, jobject target, jlong methodID, jfloatArray arg) 103 { 104 jsize parameterCount = env->GetArrayLength(arg); 105 jfloat *floatValues = env->GetFloatArrayElements(arg, NULL); 106 jvalue* values = new jvalue[parameterCount]; 107 for (int i = 0; i < parameterCount; i++) { 108 values[i].f = floatValues[i]; 109 } 110 env->CallVoidMethodA(target, reinterpret_cast<jmethodID>(methodID), values); 111 delete[] values; 112 env->ReleaseFloatArrayElements(arg, floatValues, JNI_ABORT); 113 } 114 115 static void android_animation_PropertyValuesHolder_callTwoIntMethod( 116 JNIEnv* env, jclass pvhObject, jobject target, jlong methodID, int arg1, int arg2) 117 { 118 env->CallVoidMethod(target, reinterpret_cast<jmethodID>(methodID), arg1, arg2); 119 } 120 121 static void android_animation_PropertyValuesHolder_callFourIntMethod( 122 JNIEnv* env, jclass pvhObject, jobject target, jlong methodID, int arg1, int arg2, 123 int arg3, int arg4) 124 { 125 env->CallVoidMethod(target, reinterpret_cast<jmethodID>(methodID), arg1, arg2, arg3, arg4); 126 } 127 128 static void android_animation_PropertyValuesHolder_callMultipleIntMethod( 129 JNIEnv* env, jclass pvhObject, jobject target, jlong methodID, jintArray arg) 130 { 131 jsize parameterCount = env->GetArrayLength(arg); 132 jint *intValues = env->GetIntArrayElements(arg, NULL); 133 jvalue* values = new jvalue[parameterCount]; 134 for (int i = 0; i < parameterCount; i++) { 135 values[i].i = intValues[i]; 136 } 137 env->CallVoidMethodA(target, reinterpret_cast<jmethodID>(methodID), values); 138 delete[] values; 139 env->ReleaseIntArrayElements(arg, intValues, JNI_ABORT); 140 } 141 142 static const JNINativeMethod gMethods[] = { 143 { "nGetIntMethod", "(Ljava/lang/Class;Ljava/lang/String;)J", 144 (void*)android_animation_PropertyValuesHolder_getIntMethod }, 145 { "nGetFloatMethod", "(Ljava/lang/Class;Ljava/lang/String;)J", 146 (void*)android_animation_PropertyValuesHolder_getFloatMethod }, 147 { "nGetMultipleFloatMethod", "(Ljava/lang/Class;Ljava/lang/String;I)J", 148 (void*)android_animation_PropertyValuesHolder_getMultipleFloatMethod }, 149 { "nGetMultipleIntMethod", "(Ljava/lang/Class;Ljava/lang/String;I)J", 150 (void*)android_animation_PropertyValuesHolder_getMultipleIntMethod }, 151 { "nCallIntMethod", "(Ljava/lang/Object;JI)V", 152 (void*)android_animation_PropertyValuesHolder_callIntMethod }, 153 { "nCallFloatMethod", "(Ljava/lang/Object;JF)V", 154 (void*)android_animation_PropertyValuesHolder_callFloatMethod }, 155 { "nCallTwoFloatMethod", "(Ljava/lang/Object;JFF)V", 156 (void*)android_animation_PropertyValuesHolder_callTwoFloatMethod }, 157 { "nCallFourFloatMethod", "(Ljava/lang/Object;JFFFF)V", 158 (void*)android_animation_PropertyValuesHolder_callFourFloatMethod }, 159 { "nCallMultipleFloatMethod", "(Ljava/lang/Object;J[F)V", 160 (void*)android_animation_PropertyValuesHolder_callMultipleFloatMethod }, 161 { "nCallTwoIntMethod", "(Ljava/lang/Object;JII)V", 162 (void*)android_animation_PropertyValuesHolder_callTwoIntMethod }, 163 { "nCallFourIntMethod", "(Ljava/lang/Object;JIIII)V", 164 (void*)android_animation_PropertyValuesHolder_callFourIntMethod }, 165 { "nCallMultipleIntMethod", "(Ljava/lang/Object;J[I)V", 166 (void*)android_animation_PropertyValuesHolder_callMultipleIntMethod }, 167 }; 168 169 int register_android_animation_PropertyValuesHolder(JNIEnv* env) 170 { 171 return RegisterMethodsOrDie(env, kClassPathName, gMethods, NELEM(gMethods)); 172 } 173 174 }; 175
