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+/*
+ * 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__ */