1 /*
2 * Copyright 2021 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8 #include <jni.h>
9
10 #include "modules/androidkit/src/Utils.h"
11 #include "modules/skottie/include/Skottie.h"
12
13 using namespace skottie;
14
15 namespace {
16
Animation_Create(JNIEnv * env,jobject,jstring jjson)17 static jlong Animation_Create(JNIEnv* env, jobject, jstring jjson) {
18 const androidkit::utils::CString cstr(env, jjson);
19
20 // TODO: more builder opts
21 auto animation = Animation::Builder().make(cstr, strlen(cstr));
22
23 return reinterpret_cast<jlong>(animation.release());
24 }
25
Animation_Release(JNIEnv,jobject,jlong native_animation)26 static void Animation_Release(JNIEnv, jobject, jlong native_animation) {
27 SkSafeUnref(reinterpret_cast<Animation*>(native_animation));
28 }
29
Animation_GetDuration(JNIEnv,jobject,jlong native_animation)30 static jdouble Animation_GetDuration(JNIEnv, jobject, jlong native_animation) {
31 const auto* animation = reinterpret_cast<const Animation*>(native_animation);
32 return animation ? animation->duration() : 0;
33 }
34
Animation_GetFrameCnt(JNIEnv,jobject,jlong native_animation)35 static jdouble Animation_GetFrameCnt(JNIEnv, jobject, jlong native_animation) {
36 const auto* animation = reinterpret_cast<const Animation*>(native_animation);
37 return animation ? animation->outPoint() : 0;
38 }
39
Animation_GetWidth(JNIEnv,jobject,jlong native_animation)40 static jfloat Animation_GetWidth(JNIEnv, jobject, jlong native_animation) {
41 const auto* animation = reinterpret_cast<const Animation*>(native_animation);
42 return animation ? animation->size().width() : 0;
43 }
44
Animation_GetHeight(JNIEnv,jobject,jlong native_animation)45 static jfloat Animation_GetHeight(JNIEnv, jobject, jlong native_animation) {
46 const auto* animation = reinterpret_cast<const Animation*>(native_animation);
47 return animation ? animation->size().height() : 0;
48 }
49
Animation_SeekFrame(JNIEnv,jobject,jlong native_animation,jdouble frame)50 static void Animation_SeekFrame(JNIEnv, jobject, jlong native_animation, jdouble frame) {
51 if (auto* animation = reinterpret_cast<Animation*>(native_animation)) {
52 animation->seekFrame(frame);
53 }
54 }
55
Animation_SeekTime(JNIEnv,jobject,jlong native_animation,jdouble t)56 static void Animation_SeekTime(JNIEnv, jobject, jlong native_animation, jdouble t) {
57 if (auto* animation = reinterpret_cast<Animation*>(native_animation)) {
58 animation->seekFrameTime(t);
59 }
60 }
61
Animation_Render(JNIEnv,jobject,jlong native_animation,jlong native_canvas)62 static void Animation_Render(JNIEnv, jobject, jlong native_animation, jlong native_canvas) {
63 const auto* animation = reinterpret_cast<const Animation*>(native_animation);
64 auto* canvas = reinterpret_cast<SkCanvas*>(native_canvas);
65 if (animation && canvas) {
66 animation->render(canvas);
67 }
68 }
69
70 } // namespace
71
register_androidkit_SkottieAnimation(JNIEnv * env)72 int register_androidkit_SkottieAnimation(JNIEnv* env) {
73 static const JNINativeMethod methods[] = {
74 {"nCreate" , "(Ljava/lang/String;)J", reinterpret_cast<void*>(Animation_Create) },
75 {"nRelease" , "(J)V" , reinterpret_cast<void*>(Animation_Release) },
76
77 {"nGetDuration" , "(J)D" , reinterpret_cast<void*>(Animation_GetDuration)},
78 {"nGetFrameCount", "(J)D" , reinterpret_cast<void*>(Animation_GetFrameCnt)},
79 {"nGetWidth" , "(J)F" , reinterpret_cast<void*>(Animation_GetWidth) },
80 {"nGetHeight" , "(J)F" , reinterpret_cast<void*>(Animation_GetHeight) },
81
82 {"nSeekFrame" , "(JD)V" , reinterpret_cast<void*>(Animation_SeekFrame) },
83 {"nSeekTime" , "(JD)V" , reinterpret_cast<void*>(Animation_SeekTime) },
84 {"nRender" , "(JJ)V" , reinterpret_cast<void*>(Animation_Render) },
85 };
86
87 const auto clazz = env->FindClass("org/skia/androidkit/SkottieAnimation");
88 return clazz
89 ? env->RegisterNatives(clazz, methods, SK_ARRAY_COUNT(methods))
90 : JNI_ERR;
91 }
92