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 #include <Interpolator.h>
18 #include <cutils/log.h>
19
20 #include "graphics_jni_helpers.h"
21
22 namespace android {
23
24 using namespace uirenderer;
25
createAccelerateDecelerateInterpolator(JNIEnv * env,jobject clazz)26 static jlong createAccelerateDecelerateInterpolator(JNIEnv* env, jobject clazz) {
27 return reinterpret_cast<jlong>(new AccelerateDecelerateInterpolator());
28 }
29
createAccelerateInterpolator(JNIEnv * env,jobject clazz,jfloat factor)30 static jlong createAccelerateInterpolator(JNIEnv* env, jobject clazz, jfloat factor) {
31 return reinterpret_cast<jlong>(new AccelerateInterpolator(factor));
32 }
33
createAnticipateInterpolator(JNIEnv * env,jobject clazz,jfloat tension)34 static jlong createAnticipateInterpolator(JNIEnv* env, jobject clazz, jfloat tension) {
35 return reinterpret_cast<jlong>(new AnticipateInterpolator(tension));
36 }
37
createAnticipateOvershootInterpolator(JNIEnv * env,jobject clazz,jfloat tension)38 static jlong createAnticipateOvershootInterpolator(JNIEnv* env, jobject clazz, jfloat tension) {
39 return reinterpret_cast<jlong>(new AnticipateOvershootInterpolator(tension));
40 }
41
createBounceInterpolator(JNIEnv * env,jobject clazz)42 static jlong createBounceInterpolator(JNIEnv* env, jobject clazz) {
43 return reinterpret_cast<jlong>(new BounceInterpolator());
44 }
45
createCycleInterpolator(JNIEnv * env,jobject clazz,jfloat cycles)46 static jlong createCycleInterpolator(JNIEnv* env, jobject clazz, jfloat cycles) {
47 return reinterpret_cast<jlong>(new CycleInterpolator(cycles));
48 }
49
createDecelerateInterpolator(JNIEnv * env,jobject clazz,jfloat factor)50 static jlong createDecelerateInterpolator(JNIEnv* env, jobject clazz, jfloat factor) {
51 return reinterpret_cast<jlong>(new DecelerateInterpolator(factor));
52 }
53
createLinearInterpolator(JNIEnv * env,jobject clazz)54 static jlong createLinearInterpolator(JNIEnv* env, jobject clazz) {
55 return reinterpret_cast<jlong>(new LinearInterpolator());
56 }
57
createOvershootInterpolator(JNIEnv * env,jobject clazz,jfloat tension)58 static jlong createOvershootInterpolator(JNIEnv* env, jobject clazz, jfloat tension) {
59 return reinterpret_cast<jlong>(new OvershootInterpolator(tension));
60 }
61
createPathInterpolator(JNIEnv * env,jobject clazz,jfloatArray jX,jfloatArray jY)62 static jlong createPathInterpolator(JNIEnv* env, jobject clazz, jfloatArray jX, jfloatArray jY) {
63 jsize lenX = env->GetArrayLength(jX);
64 jsize lenY = env->GetArrayLength(jY);
65 LOG_ALWAYS_FATAL_IF(lenX != lenY || lenX <= 0, "Invalid path interpolator, x size: %d,"
66 " y size: %d", lenX, lenY);
67 std::vector<float> x(lenX);
68 std::vector<float> y(lenY);
69 env->GetFloatArrayRegion(jX, 0, lenX, x.data());
70 env->GetFloatArrayRegion(jY, 0, lenX, y.data());
71
72 return reinterpret_cast<jlong>(new PathInterpolator(std::move(x), std::move(y)));
73 }
74
createLutInterpolator(JNIEnv * env,jobject clazz,jfloatArray jlut)75 static jlong createLutInterpolator(JNIEnv* env, jobject clazz, jfloatArray jlut) {
76 jsize len = env->GetArrayLength(jlut);
77 if (len <= 0) {
78 return 0;
79 }
80 float* lut = new float[len];
81 env->GetFloatArrayRegion(jlut, 0, len, lut);
82 return reinterpret_cast<jlong>(new LUTInterpolator(lut, len));
83 }
84
85 // ----------------------------------------------------------------------------
86 // JNI Glue
87 // ----------------------------------------------------------------------------
88
89 const char* const kClassPathName = "android/graphics/animation/NativeInterpolatorFactory";
90
91 static const JNINativeMethod gMethods[] = {
92 { "createAccelerateDecelerateInterpolator", "()J", (void*) createAccelerateDecelerateInterpolator },
93 { "createAccelerateInterpolator", "(F)J", (void*) createAccelerateInterpolator },
94 { "createAnticipateInterpolator", "(F)J", (void*) createAnticipateInterpolator },
95 { "createAnticipateOvershootInterpolator", "(F)J", (void*) createAnticipateOvershootInterpolator },
96 { "createBounceInterpolator", "()J", (void*) createBounceInterpolator },
97 { "createCycleInterpolator", "(F)J", (void*) createCycleInterpolator },
98 { "createDecelerateInterpolator", "(F)J", (void*) createDecelerateInterpolator },
99 { "createLinearInterpolator", "()J", (void*) createLinearInterpolator },
100 { "createOvershootInterpolator", "(F)J", (void*) createOvershootInterpolator },
101 { "createPathInterpolator", "([F[F)J", (void*) createPathInterpolator },
102 { "createLutInterpolator", "([F)J", (void*) createLutInterpolator },
103 };
104
register_android_graphics_animation_NativeInterpolatorFactory(JNIEnv * env)105 int register_android_graphics_animation_NativeInterpolatorFactory(JNIEnv* env) {
106 return RegisterMethodsOrDie(env, kClassPathName, gMethods, NELEM(gMethods));
107 }
108
109
110 } // namespace android
111