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/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "OpenGLRenderer"
#include "jni.h"
#include "GraphicsJNI.h"
#include <nativehelper/JNIHelp.h>
#include <android_runtime/AndroidRuntime.h>
#include <Animator.h>
#include <Interpolator.h>
#include <RenderProperties.h>
namespace android {
using namespace uirenderer;
static struct {
jclass clazz;
jmethodID callOnFinished;
} gRenderNodeAnimatorClassInfo;
#ifdef USE_OPENGL_RENDERER
static JNIEnv* getEnv(JavaVM* vm) {
JNIEnv* env;
if (vm->GetEnv(reinterpret_cast<void**>(&env), JNI_VERSION_1_6) != JNI_OK) {
return 0;
}
return env;
}
class AnimationListenerBridge : public AnimationListener {
public:
// This holds a strong reference to a Java WeakReference<T> object. This avoids
// cyclic-references-of-doom. If you think "I know, just use NewWeakGlobalRef!"
// then you end up with basically a PhantomReference, which is totally not
// what we want.
AnimationListenerBridge(JNIEnv* env, jobject weakThis) {
mWeakThis = env->NewGlobalRef(weakThis);
env->GetJavaVM(&mJvm);
}
virtual ~AnimationListenerBridge() {
JNIEnv* env = getEnv(mJvm);
env->DeleteGlobalRef(mWeakThis);
mWeakThis = NULL;
}
virtual void onAnimationFinished(BaseRenderNodeAnimator*) {
JNIEnv* env = getEnv(mJvm);
env->CallStaticVoidMethod(
gRenderNodeAnimatorClassInfo.clazz,
gRenderNodeAnimatorClassInfo.callOnFinished,
mWeakThis);
}
private:
JavaVM* mJvm;
jobject mWeakThis;
};
static inline RenderPropertyAnimator::RenderProperty toRenderProperty(jint property) {
LOG_ALWAYS_FATAL_IF(property < 0 || property > RenderPropertyAnimator::ALPHA,
"Invalid property %d", property);
return static_cast<RenderPropertyAnimator::RenderProperty>(property);
}
static inline CanvasPropertyPaintAnimator::PaintField toPaintField(jint field) {
LOG_ALWAYS_FATAL_IF(field < 0
|| field > CanvasPropertyPaintAnimator::ALPHA,
"Invalid paint field %d", field);
return static_cast<CanvasPropertyPaintAnimator::PaintField>(field);
}
static jlong createAnimator(JNIEnv* env, jobject clazz, jobject weakThis,
jint propertyRaw, jfloat finalValue) {
RenderPropertyAnimator::RenderProperty property = toRenderProperty(propertyRaw);
BaseRenderNodeAnimator* animator = new RenderPropertyAnimator(property, finalValue);
animator->setListener(new AnimationListenerBridge(env, weakThis));
return reinterpret_cast<jlong>( animator );
}
static jlong createCanvasPropertyFloatAnimator(JNIEnv* env, jobject clazz,
jobject weakThis, jlong canvasPropertyPtr, jfloat finalValue) {
CanvasPropertyPrimitive* canvasProperty = reinterpret_cast<CanvasPropertyPrimitive*>(canvasPropertyPtr);
BaseRenderNodeAnimator* animator = new CanvasPropertyPrimitiveAnimator(canvasProperty, finalValue);
animator->setListener(new AnimationListenerBridge(env, weakThis));
return reinterpret_cast<jlong>( animator );
}
static jlong createCanvasPropertyPaintAnimator(JNIEnv* env, jobject clazz,
jobject weakThis, jlong canvasPropertyPtr, jint paintFieldRaw,
jfloat finalValue) {
CanvasPropertyPaint* canvasProperty = reinterpret_cast<CanvasPropertyPaint*>(canvasPropertyPtr);
CanvasPropertyPaintAnimator::PaintField paintField = toPaintField(paintFieldRaw);
BaseRenderNodeAnimator* animator = new CanvasPropertyPaintAnimator(
canvasProperty, paintField, finalValue);
animator->setListener(new AnimationListenerBridge(env, weakThis));
return reinterpret_cast<jlong>( animator );
}
static jlong createRevealAnimator(JNIEnv* env, jobject clazz, jobject weakThis,
jint centerX, jint centerY, jfloat startRadius, jfloat endRadius) {
BaseRenderNodeAnimator* animator = new RevealAnimator(centerX, centerY, startRadius, endRadius);
animator->setListener(new AnimationListenerBridge(env, weakThis));
return reinterpret_cast<jlong>( animator );
}
static void setStartValue(JNIEnv* env, jobject clazz, jlong animatorPtr, jfloat startValue) {
BaseRenderNodeAnimator* animator = reinterpret_cast<BaseRenderNodeAnimator*>(animatorPtr);
animator->setStartValue(startValue);
}
static void setDuration(JNIEnv* env, jobject clazz, jlong animatorPtr, jlong duration) {
LOG_ALWAYS_FATAL_IF(duration < 0, "Duration cannot be negative");
BaseRenderNodeAnimator* animator = reinterpret_cast<BaseRenderNodeAnimator*>(animatorPtr);
animator->setDuration(duration);
}
static jlong getDuration(JNIEnv* env, jobject clazz, jlong animatorPtr) {
BaseRenderNodeAnimator* animator = reinterpret_cast<BaseRenderNodeAnimator*>(animatorPtr);
return static_cast<jlong>(animator->duration());
}
static void setStartDelay(JNIEnv* env, jobject clazz, jlong animatorPtr, jlong startDelay) {
LOG_ALWAYS_FATAL_IF(startDelay < 0, "Start delay cannot be negative");
BaseRenderNodeAnimator* animator = reinterpret_cast<BaseRenderNodeAnimator*>(animatorPtr);
animator->setStartDelay(startDelay);
}
static jlong getStartDelay(JNIEnv* env, jobject clazz, jlong animatorPtr) {
BaseRenderNodeAnimator* animator = reinterpret_cast<BaseRenderNodeAnimator*>(animatorPtr);
return static_cast<jlong>(animator->startDelay());
}
static void setInterpolator(JNIEnv* env, jobject clazz, jlong animatorPtr, jlong interpolatorPtr) {
BaseRenderNodeAnimator* animator = reinterpret_cast<BaseRenderNodeAnimator*>(animatorPtr);
Interpolator* interpolator = reinterpret_cast<Interpolator*>(interpolatorPtr);
animator->setInterpolator(interpolator);
}
static void start(JNIEnv* env, jobject clazz, jlong animatorPtr) {
BaseRenderNodeAnimator* animator = reinterpret_cast<BaseRenderNodeAnimator*>(animatorPtr);
animator->start();
}
static void end(JNIEnv* env, jobject clazz, jlong animatorPtr) {
BaseRenderNodeAnimator* animator = reinterpret_cast<BaseRenderNodeAnimator*>(animatorPtr);
animator->end();
}
#endif
// ----------------------------------------------------------------------------
// JNI Glue
// ----------------------------------------------------------------------------
const char* const kClassPathName = "android/view/RenderNodeAnimator";
static JNINativeMethod gMethods[] = {
#ifdef USE_OPENGL_RENDERER
{ "nCreateAnimator", "(Ljava/lang/ref/WeakReference;IF)J", (void*) createAnimator },
{ "nCreateCanvasPropertyFloatAnimator", "(Ljava/lang/ref/WeakReference;JF)J", (void*) createCanvasPropertyFloatAnimator },
{ "nCreateCanvasPropertyPaintAnimator", "(Ljava/lang/ref/WeakReference;JIF)J", (void*) createCanvasPropertyPaintAnimator },
{ "nCreateRevealAnimator", "(Ljava/lang/ref/WeakReference;IIFF)J", (void*) createRevealAnimator },
{ "nSetStartValue", "(JF)V", (void*) setStartValue },
{ "nSetDuration", "(JJ)V", (void*) setDuration },
{ "nGetDuration", "(J)J", (void*) getDuration },
{ "nSetStartDelay", "(JJ)V", (void*) setStartDelay },
{ "nGetStartDelay", "(J)J", (void*) getStartDelay },
{ "nSetInterpolator", "(JJ)V", (void*) setInterpolator },
{ "nStart", "(J)V", (void*) start },
{ "nEnd", "(J)V", (void*) end },
#endif
};
#define FIND_CLASS(var, className) \
var = env->FindClass(className); \
LOG_FATAL_IF(! var, "Unable to find class " className);
#define GET_STATIC_METHOD_ID(var, clazz, methodName, methodDescriptor) \
var = env->GetStaticMethodID(clazz, methodName, methodDescriptor); \
LOG_FATAL_IF(! var, "Unable to find method " methodName);
int register_android_view_RenderNodeAnimator(JNIEnv* env) {
FIND_CLASS(gRenderNodeAnimatorClassInfo.clazz, kClassPathName);
gRenderNodeAnimatorClassInfo.clazz = jclass(env->NewGlobalRef(gRenderNodeAnimatorClassInfo.clazz));
GET_STATIC_METHOD_ID(gRenderNodeAnimatorClassInfo.callOnFinished, gRenderNodeAnimatorClassInfo.clazz,
"callOnFinished", "(Ljava/lang/ref/WeakReference;)V");
return AndroidRuntime::registerNativeMethods(env, kClassPathName, gMethods, NELEM(gMethods));
}
} // namespace android
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