85 lines
3.2 KiB
C++
85 lines
3.2 KiB
C++
#include "GraphicsJNI.h"
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#include "SkiaInterpolator.h"
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static jlong Interpolator_constructor(JNIEnv* env, jobject clazz, jint valueCount, jint frameCount)
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{
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return reinterpret_cast<jlong>(new SkiaInterpolator(valueCount, frameCount));
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}
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static void Interpolator_destructor(JNIEnv* env, jobject clazz, jlong interpHandle)
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{
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SkiaInterpolator* interp = reinterpret_cast<SkiaInterpolator*>(interpHandle);
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delete interp;
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}
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static void Interpolator_reset(JNIEnv* env, jobject clazz, jlong interpHandle, jint valueCount, jint frameCount)
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{
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SkiaInterpolator* interp = reinterpret_cast<SkiaInterpolator*>(interpHandle);
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interp->reset(valueCount, frameCount);
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}
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static void Interpolator_setKeyFrame(JNIEnv* env, jobject clazz, jlong interpHandle, jint index, jint msec, jfloatArray valueArray, jfloatArray blendArray)
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{
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SkiaInterpolator* interp = reinterpret_cast<SkiaInterpolator*>(interpHandle);
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AutoJavaFloatArray autoValues(env, valueArray);
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AutoJavaFloatArray autoBlend(env, blendArray, 4);
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#ifdef SK_SCALAR_IS_FLOAT
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SkScalar* scalars = autoValues.ptr();
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SkScalar* blend = autoBlend.ptr();
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#else
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#error Need to convert float array to SkScalar array before calling the following function.
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#endif
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interp->setKeyFrame(index, msec, scalars, blend);
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}
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static void Interpolator_setRepeatMirror(JNIEnv* env, jobject clazz, jlong interpHandle, jfloat repeatCount, jboolean mirror)
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{
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SkiaInterpolator* interp = reinterpret_cast<SkiaInterpolator*>(interpHandle);
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if (repeatCount > 32000)
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repeatCount = 32000;
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interp->setRepeatCount(repeatCount);
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interp->setMirror(mirror != 0);
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}
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static jint Interpolator_timeToValues(JNIEnv* env, jobject clazz, jlong interpHandle, jint msec, jfloatArray valueArray)
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{
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SkiaInterpolator* interp = reinterpret_cast<SkiaInterpolator*>(interpHandle);
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SkiaInterpolator::Result result;
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float* values = valueArray ? env->GetFloatArrayElements(valueArray, NULL) : NULL;
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result = interp->timeToValues(msec, (SkScalar*)values);
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if (valueArray) {
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int n = env->GetArrayLength(valueArray);
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for (int i = 0; i < n; i++) {
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values[i] = SkScalarToFloat(*(SkScalar*)&values[i]);
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}
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env->ReleaseFloatArrayElements(valueArray, values, 0);
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}
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return static_cast<jint>(result);
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}
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// ----------------------------------------------------------------------------
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/*
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* JNI registration.
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*/
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static const JNINativeMethod gInterpolatorMethods[] = {
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{ "nativeConstructor", "(II)J", (void*)Interpolator_constructor },
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{ "nativeDestructor", "(J)V", (void*)Interpolator_destructor },
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{ "nativeReset", "(JII)V", (void*)Interpolator_reset },
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{ "nativeSetKeyFrame", "(JII[F[F)V", (void*)Interpolator_setKeyFrame },
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{ "nativeSetRepeatMirror", "(JFZ)V", (void*)Interpolator_setRepeatMirror },
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{ "nativeTimeToValues", "(JI[F)I", (void*)Interpolator_timeToValues }
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};
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int register_android_graphics_Interpolator(JNIEnv* env)
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{
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return android::RegisterMethodsOrDie(env, "android/graphics/Interpolator",
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gInterpolatorMethods, NELEM(gInterpolatorMethods));
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}
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