com_android_internal_view_animation_NativeInterpolatorFactoryHelper.cpp revision 315c329544d7c593d1072b071cbb92d9afe74021
1/* 2 * Copyright (C) 2014 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 "OpenGLRenderer" 18 19#include "jni.h" 20#include <nativehelper/JNIHelp.h> 21#include <android_runtime/AndroidRuntime.h> 22 23#include <Interpolator.h> 24 25namespace android { 26 27using namespace uirenderer; 28 29#ifdef USE_OPENGL_RENDERER 30 31static jlong createAccelerateDecelerateInterpolator(JNIEnv* env, jobject clazz) { 32 return reinterpret_cast<jlong>(new AccelerateDecelerateInterpolator()); 33} 34 35static jlong createLutInterpolator(JNIEnv* env, jobject clazz, jfloatArray jlut) { 36 jsize len = env->GetArrayLength(jlut); 37 if (len <= 0) { 38 return 0; 39 } 40 float* lut = new float[len]; 41 env->GetFloatArrayRegion(jlut, 0, len, lut); 42 return reinterpret_cast<jlong>(new LUTInterpolator(lut, len)); 43} 44 45#endif 46 47// ---------------------------------------------------------------------------- 48// JNI Glue 49// ---------------------------------------------------------------------------- 50 51const char* const kClassPathName = "com/android/internal/view/animation/NativeInterpolatorFactoryHelper"; 52 53static JNINativeMethod gMethods[] = { 54#ifdef USE_OPENGL_RENDERER 55 { "createAccelerateDecelerateInterpolator", "()J", (void*) createAccelerateDecelerateInterpolator }, 56 { "createLutInterpolator", "([F)J", (void*) createLutInterpolator }, 57#endif 58}; 59 60int register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper(JNIEnv* env) { 61 return AndroidRuntime::registerNativeMethods(env, kClassPathName, gMethods, NELEM(gMethods)); 62} 63 64 65} // namespace android 66