/**
* Read the accumulated value and the number of accumulated values atomically.
*
* This function reads the value and count from the FPGA atomically.
* This can be used for averaging.
*
* @param value Reference to the 64-bit accumulated output.
* @param count Reference to the number of accumulation cycles.
*/
void AnalogInput::GetAccumulatorOutput(int64_t &value, uint32_t &count) const {
if (StatusIsFatal()) return;
int32_t status = 0;
getAccumulatorOutput(m_port, &value, &count, &status);
wpi_setErrorWithContext(status, getHALErrorMessage(status));
value += m_accumulatorOffset;
}
/*
* Class: edu_wpi_first_wpilibj_hal_AnalogJNI
* Method: getAccumulatorOutput
* Signature: (Ljava/nio/ByteBuffer;Ljava/nio/LongBuffer;Ljava/nio/IntBuffer;Ljava/nio/IntBuffer;)V
*/
JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_AnalogJNI_getAccumulatorOutput
(JNIEnv * env, jclass, jobject id, jobject value, jobject count, jobject status)
{
void ** javaId = (void**)env->GetDirectBufferAddress(id);
ANALOGJNI_LOG(logDEBUG) << "Analog Ptr = " << *javaId;
jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
jlong * valuePtr = (jlong*)env->GetDirectBufferAddress(value);
uint32_t * countPtr = (uint32_t*)env->GetDirectBufferAddress(count);
getAccumulatorOutput(*javaId, valuePtr, countPtr, statusPtr);
ANALOGJNI_LOG(logDEBUG) << "Value = " << *valuePtr;
ANALOGJNI_LOG(logDEBUG) << "Count = " << *countPtr;
ANALOGJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
}
