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 <cutils/log.h>
22 #include "core_jni_helpers.h"
23
24 #include <Interpolator.h>
25
26 namespace android {
27
28 using namespace uirenderer;
29
createAccelerateDecelerateInterpolator(JNIEnv * env,jobject clazz)30 static jlong createAccelerateDecelerateInterpolator(JNIEnv* env, jobject clazz) {
31 return reinterpret_cast<jlong>(new AccelerateDecelerateInterpolator());
32 }
33
createAccelerateInterpolator(JNIEnv * env,jobject clazz,jfloat factor)34 static jlong createAccelerateInterpolator(JNIEnv* env, jobject clazz, jfloat factor) {
35 return reinterpret_cast<jlong>(new AccelerateInterpolator(factor));
36 }
37
createAnticipateInterpolator(JNIEnv * env,jobject clazz,jfloat tension)38 static jlong createAnticipateInterpolator(JNIEnv* env, jobject clazz, jfloat tension) {
39 return reinterpret_cast<jlong>(new AnticipateInterpolator(tension));
40 }
41
createAnticipateOvershootInterpolator(JNIEnv * env,jobject clazz,jfloat tension)42 static jlong createAnticipateOvershootInterpolator(JNIEnv* env, jobject clazz, jfloat tension) {
43 return reinterpret_cast<jlong>(new AnticipateOvershootInterpolator(tension));
44 }
45
createBounceInterpolator(JNIEnv * env,jobject clazz)46 static jlong createBounceInterpolator(JNIEnv* env, jobject clazz) {
47 return reinterpret_cast<jlong>(new BounceInterpolator());
48 }
49
createCycleInterpolator(JNIEnv * env,jobject clazz,jfloat cycles)50 static jlong createCycleInterpolator(JNIEnv* env, jobject clazz, jfloat cycles) {
51 return reinterpret_cast<jlong>(new CycleInterpolator(cycles));
52 }
53
createDecelerateInterpolator(JNIEnv * env,jobject clazz,jfloat factor)54 static jlong createDecelerateInterpolator(JNIEnv* env, jobject clazz, jfloat factor) {
55 return reinterpret_cast<jlong>(new DecelerateInterpolator(factor));
56 }
57
createLinearInterpolator(JNIEnv * env,jobject clazz)58 static jlong createLinearInterpolator(JNIEnv* env, jobject clazz) {
59 return reinterpret_cast<jlong>(new LinearInterpolator());
60 }
61
createOvershootInterpolator(JNIEnv * env,jobject clazz,jfloat tension)62 static jlong createOvershootInterpolator(JNIEnv* env, jobject clazz, jfloat tension) {
63 return reinterpret_cast<jlong>(new OvershootInterpolator(tension));
64 }
65
createPathInterpolator(JNIEnv * env,jobject clazz,jfloatArray jX,jfloatArray jY)66 static jlong createPathInterpolator(JNIEnv* env, jobject clazz, jfloatArray jX, jfloatArray jY) {
67 jsize lenX = env->GetArrayLength(jX);
68 jsize lenY = env->GetArrayLength(jY);
69 LOG_ALWAYS_FATAL_IF(lenX != lenY || lenX <= 0, "Invalid path interpolator, x size: %d,"
70 " y size: %d", lenX, lenY);
71 std::vector<float> x(lenX);
72 std::vector<float> y(lenY);
73 env->GetFloatArrayRegion(jX, 0, lenX, x.data());
74 env->GetFloatArrayRegion(jY, 0, lenX, y.data());
75
76 return reinterpret_cast<jlong>(new PathInterpolator(std::move(x), std::move(y)));
77 }
78
createLutInterpolator(JNIEnv * env,jobject clazz,jfloatArray jlut)79 static jlong createLutInterpolator(JNIEnv* env, jobject clazz, jfloatArray jlut) {
80 jsize len = env->GetArrayLength(jlut);
81 if (len <= 0) {
82 return 0;
83 }
84 float* lut = new float[len];
85 env->GetFloatArrayRegion(jlut, 0, len, lut);
86 return reinterpret_cast<jlong>(new LUTInterpolator(lut, len));
87 }
88
89 // ----------------------------------------------------------------------------
90 // JNI Glue
91 // ----------------------------------------------------------------------------
92
93 const char* const kClassPathName = "com/android/internal/view/animation/NativeInterpolatorFactoryHelper";
94
95 static const JNINativeMethod gMethods[] = {
96 { "createAccelerateDecelerateInterpolator", "()J", (void*) createAccelerateDecelerateInterpolator },
97 { "createAccelerateInterpolator", "(F)J", (void*) createAccelerateInterpolator },
98 { "createAnticipateInterpolator", "(F)J", (void*) createAnticipateInterpolator },
99 { "createAnticipateOvershootInterpolator", "(F)J", (void*) createAnticipateOvershootInterpolator },
100 { "createBounceInterpolator", "()J", (void*) createBounceInterpolator },
101 { "createCycleInterpolator", "(F)J", (void*) createCycleInterpolator },
102 { "createDecelerateInterpolator", "(F)J", (void*) createDecelerateInterpolator },
103 { "createLinearInterpolator", "()J", (void*) createLinearInterpolator },
104 { "createOvershootInterpolator", "(F)J", (void*) createOvershootInterpolator },
105 { "createPathInterpolator", "([F[F)J", (void*) createPathInterpolator },
106 { "createLutInterpolator", "([F)J", (void*) createLutInterpolator },
107 };
108
register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper(JNIEnv * env)109 int register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper(JNIEnv* env) {
110 return RegisterMethodsOrDie(env, kClassPathName, gMethods, NELEM(gMethods));
111 }
112
113
114 } // namespace android
115