--- a/videoeditorengine/h263decoder/src/list.cpp Fri Jan 29 14:08:33 2010 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,627 +0,0 @@
-/*
-* Copyright (c) 2010 Ixonos Plc.
-* All rights reserved.
-* This component and the accompanying materials are made available
-* under the terms of the "Eclipse Public License v1.0"
-* which accompanies this distribution, and is available
-* at the URL "http://www.eclipse.org/legal/epl-v10.html".
-*
-* Initial Contributors:
-* Nokia Corporation - Initial contribution
-*
-* Contributors:
-* Ixonos Plc
-*
-* Description:
-* List handling functions.
-*
-*/
-
-
-
-#include "h263dconfig.h"
-#include "list.h"
-
-#ifndef NULL
- #define NULL 0
-#endif
-
-
-/*
- * fifoClose
- *
- *
- * Parameters:
- * list a pointer to a FIFO list
- *
- * Function:
- * This function deinitializes the given FIFO list. Notice that no dynamic
- * allocation for the list is done. This function must be called when
- * the list is no longer used.
- *
- * Returns:
- * >= 0 if the function was successful
- * < 0 indicating an error
- *
- */
-
-int fifoClose(fifo_t *list)
-{
- list->head = list->tail = NULL;
- list->numItems = 0;
-
- return 0;
-}
-
-
-/*
- * fifoGet
- *
- *
- * Parameters:
- * list a pointer to a FIFO list
- * item used to return a pointer to the removed
- * list item
- *
- * Function:
- * This function removes an item from the list. Notice that no copying of
- * contents of the given item is done, i.e. only the pointer to the item
- * is used.
- *
- * If there are no items left in the list, NULL will be returned in
- * the item parameter.
- *
- * Returns:
- * >= 0 if the function was successful
- * < 0 indicating an error
- *
- */
-
-int fifoGet(fifo_t *list, void **item)
-{
- if (list->head) {
- *item = (void *) list->head;
- list->head = (lstListItem_t *) list->head->next;
- if (list->head == NULL)
- list->tail = NULL;
- list->numItems--;
- }
-
- else
- *item = NULL;
-
- return 0;
-}
-
-
-/*
- * fifoOpen
- *
- *
- * Parameters:
- * list a pointer to a FIFO list
- *
- * Function:
- * This function initializes the given FIFO list. Notice that no dynamic
- * allocation for the list is done. This function must be called before
- * the list is used.
- *
- * Returns:
- * >= 0 if the function was successful
- * < 0 indicating an error
- *
- */
-
-int fifoOpen(fifo_t *list)
-{
- list->head = list->tail = NULL;
- list->numItems = 0;
-
- return 0;
-}
-
-
-/*
- * fifoPeek
- *
- *
- * Parameters:
- * list a pointer to a FIFO list
- * item used to return a pointer to the removed
- * list item
- *
- * Function:
- * This function returns a pointer to the next in the list but does not
- * remove the item from the list. Notice that no copying of
- * contents of the given item is done, i.e. only the pointer to the item
- * is used.
- *
- * If there are no items left in the list, NULL will be returned in
- * the item parameter.
- *
- * Returns:
- * >= 0 if the function was successful
- * < 0 indicating an error
- *
- */
-
-int fifoPeek(fifo_t *list, void **item)
-{
- if (list->head)
- *item = (void *) list->head;
-
- else
- *item = NULL;
-
- return 0;
-}
-
-
-/*
- * fifoPut
- *
- *
- * Parameters:
- * list a pointer to a FIFO list
- * item an item to add to the list
- *
- * Function:
- * This function adds an item into the list. Notice that no copying of
- * contents of the given item is done, i.e. only the pointer to the item
- * is used.
- *
- * Returns:
- * >= 0 if the function was successful
- * < 0 indicating an error
- *
- */
-
-int fifoPut(fifo_t *list, void *item)
-{
- ((lstListItem_t *) item)->next = NULL;
-
- if (list->tail) {
- list->tail->next = item;
- list->tail = (lstListItem_t *) (item);
- }
-
- else
- list->head = list->tail = (lstListItem_t *) item;
-
- list->numItems++;
-
- return 0;
-}
-
-
-/*
- * lifoClose
- *
- *
- * Parameters:
- * list a pointer to a LIFO list
- *
- * Function:
- * This function deinitializes the given LIFO list. Notice that no dynamic
- * allocation for the list is done. This function must be called when
- * the list is no longer used.
- *
- * Returns:
- * >= 0 if the function was successful
- * < 0 indicating an error
- *
- */
-
-int lifoClose(lifo_t *list)
-{
- list->head = NULL;
-
- return 0;
-}
-
-
-/*
- * lifoGet
- *
- *
- * Parameters:
- * list a pointer to a LIFO list
- * item used to return a pointer to the removed
- * list item
- *
- * Function:
- * This function removes an item from the list. Notice that no copying of
- * contents of the given item is done, i.e. only the pointer to the item
- * is used.
- *
- * If there are no items left in the list, NULL will be returned in
- * the item parameter.
- *
- * Returns:
- * >= 0 if the function was successful
- * < 0 indicating an error
- *
- */
-
-int lifoGet(lifo_t *list, void **item)
-{
- if (list->head) {
- *item = list->head;
- list->head = (lstListItem_t *) list->head->next;
- }
- else
- *item = NULL;
-
- return 0;
-}
-
-
-/*
- * lifoOpen
- *
- *
- * Parameters:
- * list a pointer to a LIFO list
- *
- * Function:
- * This function initializes the given LIFO list. Notice that no dynamic
- * allocation for the list is done. This function must be called before
- * the list is used.
- *
- * Returns:
- * >= 0 if the function was successful
- * < 0 indicating an error
- *
- */
-
-int lifoOpen(lifo_t *list)
-{
- list->head = NULL;
-
- return 0;
-}
-
-
-/*
- * lifoPut
- *
- *
- * Parameters:
- * list a pointer to a LIFO list
- * item an item to add to the list
- *
- * Function:
- * This function adds an item into the list. Notice that no copying of
- * contents of the given item is done, i.e. only the pointer to the item
- * is used.
- *
- * Returns:
- * >= 0 if the function was successful
- * < 0 indicating an error
- *
- */
-
-int lifoPut(lifo_t *list, void *item)
-{
- ((lstListItem_t *) item)->next = list->head;
- list->head = (lstListItem_t *) item;
-
- return 0;
-}
-
-
-/*
- * lstClose
- *
- *
- * Parameters:
- * list a pointer to a list
- *
- * Function:
- * This function deinitializes the given list. Notice that no dynamic
- * allocation for the list is done. This function must be called when
- * the list is no longer used.
- *
- * Returns:
- * >= 0 if the function was successful
- * < 0 indicating an error
- *
- */
-
-int lstClose(lst_t *list)
-{
- list->head = list->prev = list->curr = NULL;
- list->numItems = 0;
-
- return 0;
-}
-
-
-/*
- * lstRemove
- *
- *
- * Parameters:
- * list a pointer to a lst list
- * item used to return a pointer to the removed
- * list item
- *
- * Function:
- * This function removes an item from the list. Notice that no copying of
- * contents of the given item is done, i.e. only the pointer to the item
- * is used.
- *
- * If there are no items left in the list, NULL will be returned in
- * the item parameter.
- *
- * Returns:
- * >= 0 if the function was successful
- * < 0 indicating an error
- *
- */
-
-int lstRemove(lst_t *list, void **item)
-{
- if (list->curr) {
- *item = (void *) list->curr;
- if (list->prev)
- list->prev->next = list->curr->next;
- else
- list->head = (lstListItem_t *) (list->curr->next);
- list->curr = (lstListItem_t *) (list->curr->next);
- ((lstListItem_t *) *item)->next = NULL;
- list->numItems--;
- }
-
- else
- *item = NULL;
-
- return 0;
-}
-
-
-/*
- * lstOpen
- *
- *
- * Parameters:
- * list a pointer to a list
- *
- * Function:
- * This function initializes the given list. Notice that no dynamic
- * allocation for the list is done. This function must be called before
- * the list is used.
- *
- * Returns:
- * >= 0 if the function was successful
- * < 0 indicating an error
- *
- */
-
-int lstOpen(lst_t *list)
-{
- list->head = list->prev = list->curr = NULL;
- list->numItems = 0;
-
- return 0;
-}
-
-
-/*
- * lstHead
- *
- *
- * Parameters:
- * list a pointer to a lst list
- * item used to return a pointer to the head item
- * of the list
- *
- * Function:
- * This function sets the current access point to the head of the list and
- * returns a pointer to the head item. Notice that no copying of
- * contents of the given item is done, i.e. only the pointer to the item
- * is used.
- *
- * If there are no items left in the list, NULL will be returned in
- * the item parameter.
- *
- * Returns:
- * >= 0 if the function was successful
- * < 0 indicating an error
- *
- */
-
-int lstHead(lst_t *list, void **item)
-{
- if (list->head)
- *item = (void *) list->head;
-
- else
- *item = NULL;
-
- list->curr = list->head;
- list->prev = NULL;
-
- return 0;
-}
-
-
-/*
- * lstEnd
- *
- *
- * Parameters:
- * list a pointer to a lst list
- *
- * Function:
- * This function sets the current access point to the tail of the list
- * enabling the item addition to the end of the list.
- *
- * Returns:
- * >= 0 if the function was successful
- * < 0 indicating an error
- *
- */
-
-int lstEnd(lst_t *list)
-{
- while (list->curr) {
- list->prev = list->curr;
- list->curr = (lstListItem_t *) (list->curr->next);
- }
-
- return 0;
-}
-
-
-/*
- * lstTail
- *
- *
- * Parameters:
- * list a pointer to a lst list
- *
- * Function:
- * This function sets the current access point to the tail of the list
- * enabling the item addition to the end of the list.
- *
- * Returns:
- * >= 0 if the function was successful
- * < 0 indicating an error
- *
- */
-
-int lstTail(lst_t *list, void **item)
-{
- if (!list->curr) {
- list->curr = list->head;
- list->prev = NULL;
- }
-
- if (!list->curr) {
- *item = NULL;
- return 0;
- }
-
- while (list->curr->next) {
- list->prev = list->curr;
- list->curr = (lstListItem_t *) (list->curr->next);
- }
-
- *item = list->curr;
- return 0;
-}
-
-
-/*
- * lstCurr
- *
- *
- * Parameters:
- * list a pointer to a lst list
- * item used to return a pointer to the current item
- * of the list
- *
- * Function:
- * This returns a pointer to the current item of the list.
- * Notice that no copying of contents of the given item is done,
- * i.e. only the pointer to the item is used.
- *
- * If there are no items left in the list, NULL will be returned in
- * the item parameter.
- *
- * Returns:
- * >= 0 if the function was successful
- * < 0 indicating an error
- *
- */
-
-int lstCurr(lst_t *list, void **item)
-{
- *item = list->curr;
- return 0;
-}
-
-
-/*
- * lstNext
- *
- *
- * Parameters:
- * list a pointer to a lst list
- * item used to return a pointer to the next item
- * of the list
- *
- * Function:
- * This function sets the current access point to the next item of the list
- * and returns a pointer to the item. Notice that no copying of
- * contents of the given item is done, i.e. only the pointer to the item
- * is used.
- *
- * If there are no items left in the list, NULL will be returned in
- * the item parameter.
- *
- * Returns:
- * >= 0 if the function was successful
- * < 0 indicating an error
- *
- */
-
-int lstNext(lst_t *list, void **item)
-{
- if (list->curr) {
- list->prev = list->curr;
- list->curr = (lstListItem_t *) (list->curr->next);
- *item = (void *) list->curr;
- }
-
- else
- *item = NULL;
-
- return 0;
-}
-
-
-int lstNextExists(lst_t *list)
-{
- return (list->curr && list->curr->next) ? 1 : 0;
-}
-
-/*
- * lstAdd
- *
- *
- * Parameters:
- * list a pointer to a lst list
- * item an item to add to the list
- *
- * Function:
- * This function adds an item into the list. Notice that no copying of
- * contents of the given item is done, i.e. only the pointer to the item
- * is used.
- *
- * Returns:
- * >= 0 if the function was successful
- * < 0 indicating an error
- *
- */
-
-int lstAdd(lst_t *list, void *item)
-{
- ((lstListItem_t *) item)->next = list->curr;
-
- if (list->prev)
- list->prev->next = item;
-
- else
- list->head = (lstListItem_t *) item;
-
- list->curr = (lstListItem_t *) item;
-
- list->numItems++;
-
- return 0;
-}
-
-
-// End of File