void
videoEditJava_getArray(
bool* pResult,
JNIEnv* pEnv,
jobject object,
jfieldID arrayFieldId,
jobjectArray* pArray,
jsize* pArraySize)
{
// Only retrieve the array object and size if the previous action succeeded.
if (*pResult)
{
// Log the function call.
VIDEOEDIT_LOG_FUNCTION(ANDROID_LOG_INFO, "VIDEO_EDITOR_JAVA", "videoEditJava_getArray()");
// Retrieve the array object.
jobjectArray array = (jobjectArray)pEnv->GetObjectField(object, arrayFieldId);
jsize arraySize = 0;
// Clear any resulting exceptions.
pEnv->ExceptionClear();
// Check if the array could be retrieved.
if (NULL != array)
{
// Retrieve the array size.
arraySize = pEnv->GetArrayLength(array);
}
// Return the array and its size.
(*pArray) = array;
(*pArraySize) = arraySize;
}
}
void
videoEditJava_getStaticIntField(
bool* pResult,
JNIEnv* pEnv,
jclass clazz,
const char* pName,
int* pValue)
{
// Only look for the class if locating the previous action succeeded.
if (*pResult)
{
// Log the function call.
VIDEOEDIT_LOG_FUNCTION(ANDROID_LOG_INFO, "VIDEO_EDITOR_JAVA",
"videoEditJava_getStaticIntField(%s)", pName);
// Look up the field id.
jfieldID fieldId = pEnv->GetStaticFieldID(clazz, pName, "I");
// Clear any resulting exceptions.
pEnv->ExceptionClear();
// Check if the field could be located.
if (NULL != fieldId)
{
// Retrieve the field value.
(*pValue) = pEnv->GetStaticIntField(clazz, fieldId);
// Log the value.
VIDEOEDIT_LOG_FUNCTION(ANDROID_LOG_INFO, "VIDEO_EDITOR_JAVA",
"videoEditJava_getStaticIntField, %s = %d", pName, (*pValue));
}
else
{
// Reset the result flag.
(*pResult) = false;
// Log the error.
VIDEOEDIT_LOG_EXCEPTION(ANDROID_LOG_ERROR, "VIDEO_EDITOR_JAVA",
"videoEditJava_getStaticIntField, error: unable to locate field %s", pName);
// Throw an exception.
jniThrowException(pEnv, "java/lang/NoSuchFieldException",
"unable to locate static field");
}
}
}
void
videoEditJava_initMethodClass(
bool* pResult,
JNIEnv* pEnv,
VideoEditJava_MethodsClass* pClass)
{
bool gotten = true;
jclass clazz = NULL;
int index = 0;
// Check if the previous action succeeded.
if (*pResult)
{
// Log the function call.
VIDEOEDIT_LOG_FUNCTION(ANDROID_LOG_INFO, "VIDEO_EDITOR_JAVA",
"videoEditJava_initMethodClass(%s)", pClass->pName);
// Only initialize the class once.
if (!pClass->initialized)
{
// Look up the class.
videoEditJava_getClass(pResult, pEnv, pClass->pName, &clazz);
// Loop over the methods.
for (index = 0; index < pClass->count; index++)
{
// Look up the method id.
videoEditJava_getMethodId(
pResult,
pEnv,
clazz,
pClass->pMethods[index].pName,
pClass->pMethods[index].pType,
&pClass->pMethods[index].methodId);
}
// Check if all methods could be located.
if (*pResult)
{
// Set the initialized flag.
pClass->initialized = true;
}
}
}
}
void
videoEditJava_getMethodId(
bool* pResult,
JNIEnv* pEnv,
jclass clazz,
const char* pName,
const char* pType,
jmethodID* pMethodId)
{
// Only look for the class if locating the previous action succeeded.
if (*pResult)
{
// Log the function call.
VIDEOEDIT_LOG_FUNCTION(ANDROID_LOG_INFO, "VIDEO_EDITOR_JAVA",
"videoEditJava_getMethodId(%s,%s)", pName, pType);
// Look up the method id.
jmethodID methodId = pEnv->GetMethodID(clazz, pName, pType);
// Clear any resulting exceptions.
pEnv->ExceptionClear();
// Check if the method could be located.
if (NULL != methodId)
{
// Return the method id.
(*pMethodId) = methodId;
}
else
{
// Reset the result flag.
(*pResult) = false;
// Log the error.
VIDEOEDIT_LOG_EXCEPTION(ANDROID_LOG_ERROR, "VIDEO_EDITOR_JAVA",
"videoEditJava_getMethodId, error: unable to locate method %s with type %s",
pName, pType);
// Throw an exception.
jniThrowException(pEnv, "java/lang/NoSuchMethodException", "unable to locate method");
}
}
}
void
videoEditJava_getClass(
bool* pResult,
JNIEnv* pEnv,
const char* pName,
jclass* pClazz)
{
// Only look for the class if locating the previous action succeeded.
if (*pResult)
{
// Log the function call.
VIDEOEDIT_LOG_FUNCTION(ANDROID_LOG_INFO, "VIDEO_EDITOR_JAVA",
"videoEditJava_getClass(%s)", pName);
// Look up the class.
jclass clazz = pEnv->FindClass(pName);
// Clear any resulting exceptions.
pEnv->ExceptionClear();
// Check if the class could be located.
if (NULL != clazz)
{
// Return the class.
(*pClazz) = clazz;
}
else
{
// Reset the result flag.
(*pResult) = false;
// Log the error.
VIDEOEDIT_LOG_EXCEPTION(ANDROID_LOG_ERROR, "VIDEO_EDITOR_JAVA",
"videoEditJava_getClass, error: unable to locate class %s", pName);
// Throw an exception.
jniThrowException(pEnv, "java/lang/ClassNotFoundException",
"unable to locate class");
}
}
}
void
videoEditJava_getObject(
bool* pResult,
JNIEnv* pEnv,
jobject object,
jfieldID objectFieldId,
jobject* pObject)
{
// Only retrieve the array object and size if the previous action succeeded.
if (*pResult)
{
// Log the function call.
VIDEOEDIT_LOG_FUNCTION(ANDROID_LOG_INFO, "VIDEO_EDITOR_JAVA",
"videoEditJava_getObject()");
// Retrieve the object.
(*pObject) = pEnv->GetObjectField(object, objectFieldId);
// Clear any resulting exceptions.
pEnv->ExceptionClear();
}
}
void
videoEditOsal_free(
void* pData)
{
// Check if memory was allocated.
if (M4OSA_NULL != pData)
{
VIDEOEDIT_LOG_FUNCTION(ANDROID_LOG_INFO, "VIDEO_EDITOR_OSAL", "videoEditOsal_free()");
// Log the API call.
VIDEOEDIT_LOG_API(ANDROID_LOG_INFO, "VIDEO_EDITOR_OSAL", "free");
// Free the memory.
free(pData);
#ifdef OSAL_MEM_LEAK_DEBUG
// Update the allocated block count.
gAllocatedBlockCount--;
// Log the number of allocated blocks.
VIDEOEDIT_LOG_ALLOCATION(ANDROID_LOG_ERROR, "VIDEO_EDITOR_OSAL", "allocated, %d blocks",\
gAllocatedBlockCount);
#endif
}
}
void*
videoEditJava_getString(
bool* pResult,
JNIEnv* pEnv,
jobject object,
jfieldID stringFieldId,
M4OSA_UInt32* pLength)
{
void* pString = M4OSA_NULL;
jstring string = NULL;
M4OSA_UInt32 length = 0;
M4OSA_Char* pLocal = M4OSA_NULL;
M4OSA_ERR result = M4NO_ERROR;
// Check if the previous action succeeded.
if (*pResult)
{
// Log the function call.
VIDEOEDIT_LOG_FUNCTION(ANDROID_LOG_INFO, "VIDEO_EDITOR_JAVA", "videoEditJava_getString()");
// Check if an object containing a string was specified.
if (NULL != stringFieldId)
{
// Retrieve the string object.
string = (jstring)pEnv->GetObjectField(object, stringFieldId);
// Clear any resulting exceptions.
pEnv->ExceptionClear();
}
else
{
// The string itself was specified.
string = (jstring)object;
}
// Check if the string could be retrieved.
if (NULL != string)
{
// Get a local copy of the string.
pLocal = (M4OSA_Char*)pEnv->GetStringUTFChars(string, M4OSA_NULL);
if (M4OSA_NULL != pLocal)
{
// Determine the length of the path
// (add one extra character for the zero terminator).
length = strlen((const char *)pLocal) + 1;
// Allocate memory for the string.
pString = videoEditOsal_alloc(pResult, pEnv, length, "String");
if (*pResult)
{
// Copy the string.
result = M4OSA_chrNCopy((M4OSA_Char*)pString, pLocal, length);
// Check if the copy succeeded.
videoEditJava_checkAndThrowRuntimeException(pResult, pEnv,
(M4NO_ERROR != result), result);
// Check if the string could not be copied.
if (!(*pResult))
{
// Free the allocated memory.
videoEditOsal_free(pString);
pString = M4OSA_NULL;
}
}
// Release the local copy of the string.
pEnv->ReleaseStringUTFChars(string, (const char *)pLocal);
}
}
// Check if the string was empty or could be copied.
if (*pResult)
{
// Check if the length was requested.
if (M4OSA_NULL != pLength)
{
// Return the length.
(*pLength) = length;
}
}
}
// Return the string.
return(pString);
}
