137 lines
3.3 KiB
C++
137 lines
3.3 KiB
C++
/*
|
|
* The contents of this file are subject to the Mozilla Public
|
|
* License Version 1.1 (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.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS
|
|
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
|
|
* implied. See the License for the specific language governing
|
|
* rights and limitations under the License.
|
|
*
|
|
* The Original Code is MPEG4IP.
|
|
*
|
|
* The Initial Developer of the Original Code is Cisco Systems Inc.
|
|
* Portions created by Cisco Systems Inc. are
|
|
* Copyright (C) Cisco Systems Inc. 2001. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Dave Mackie dmackie@cisco.com
|
|
*/
|
|
|
|
#ifndef __MP4_ARRAY_INCLUDED__
|
|
#define __MP4_ARRAY_INCLUDED__
|
|
|
|
typedef u_int32_t MP4ArrayIndex;
|
|
|
|
class MP4Array {
|
|
public:
|
|
MP4Array() {
|
|
m_numElements = 0;
|
|
m_maxNumElements = 0;
|
|
}
|
|
|
|
inline bool ValidIndex(MP4ArrayIndex index) {
|
|
if (m_numElements == 0 || index > m_numElements - 1) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
inline MP4ArrayIndex Size(void) {
|
|
return m_numElements;
|
|
}
|
|
|
|
inline MP4ArrayIndex MaxSize(void) {
|
|
return m_maxNumElements;
|
|
}
|
|
|
|
protected:
|
|
MP4ArrayIndex m_numElements;
|
|
MP4ArrayIndex m_maxNumElements;
|
|
};
|
|
|
|
// macro to generate subclasses
|
|
// we use this as an alternative to templates
|
|
// due to the excessive compile time price of extensive template usage
|
|
|
|
template <class type>
|
|
class MP4TArray : public MP4Array
|
|
{
|
|
public:
|
|
MP4TArray() {
|
|
m_elements = NULL;
|
|
}
|
|
|
|
~MP4TArray() {
|
|
MP4Free(m_elements);
|
|
}
|
|
|
|
inline void Add(type newElement) {
|
|
Insert(newElement, m_numElements);
|
|
}
|
|
|
|
void Insert(type newElement, MP4ArrayIndex newIndex) {
|
|
if (newIndex > m_numElements) {
|
|
throw new MP4Error(ERANGE, "MP4Array::Insert");
|
|
}
|
|
if (m_numElements == m_maxNumElements) {
|
|
m_maxNumElements = MAX(m_maxNumElements, 1) * 2;
|
|
m_elements = (type*)MP4ReallocArray(m_elements,
|
|
m_maxNumElements, sizeof(type));
|
|
}
|
|
memmove(&m_elements[newIndex + 1], &m_elements[newIndex],
|
|
(m_numElements - newIndex) * sizeof(type));
|
|
m_elements[newIndex] = newElement;
|
|
m_numElements++;
|
|
}
|
|
|
|
void Delete(MP4ArrayIndex index) {
|
|
if (!ValidIndex(index)) {
|
|
throw new MP4Error(ERANGE, "MP4Array::Delete");
|
|
}
|
|
m_numElements--;
|
|
if (index < m_numElements) {
|
|
memmove(&m_elements[index], &m_elements[index + 1],
|
|
(m_numElements - index) * sizeof(type));
|
|
}
|
|
}
|
|
|
|
void Resize(MP4ArrayIndex newSize) {
|
|
m_numElements = newSize;
|
|
m_maxNumElements = newSize;
|
|
m_elements = (type*)MP4ReallocArray(m_elements,
|
|
m_maxNumElements, sizeof(type));
|
|
}
|
|
|
|
type& operator[](MP4ArrayIndex index) {
|
|
if (!ValidIndex(index)) {
|
|
throw new MP4Error(ERANGE, "index %u of %u", "MP4Array::[]", index, m_numElements);
|
|
}
|
|
return m_elements[index];
|
|
}
|
|
|
|
protected:
|
|
type* m_elements;
|
|
};
|
|
|
|
#define MP4ARRAY_DECL(name, type) typedef MP4TArray<type> name##Array;
|
|
|
|
MP4ARRAY_DECL(MP4Integer8, u_int8_t)
|
|
|
|
MP4ARRAY_DECL(MP4Integer16, u_int16_t)
|
|
|
|
MP4ARRAY_DECL(MP4Integer32, u_int32_t)
|
|
|
|
MP4ARRAY_DECL(MP4Integer64, u_int64_t)
|
|
|
|
MP4ARRAY_DECL(MP4Float32, float)
|
|
|
|
MP4ARRAY_DECL(MP4Float64, double)
|
|
|
|
MP4ARRAY_DECL(MP4String, char*)
|
|
|
|
MP4ARRAY_DECL(MP4Bytes, u_int8_t*)
|
|
|
|
#endif /* __MP4_ARRAY_INCLUDED__ */
|