openjpeg/libopenjpeg/function_list.c

150 lines
4.5 KiB
C

/*
* Copyright (c) 2008, Jerome Fimes, Communications & Systemes <jerome.fimes@c-s.fr>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "function_list.h"
#include "opj_includes.h"
#include "opj_malloc.h"
/**
* Default size of the validation list, if not sufficient, data will be reallocated with a double size.
*/
#define OPJ_VALIDATION_SIZE 10
/**
* Creates a validation list.
*
* @return the newly created validation list.
*/
opj_procedure_list_t * opj_procedure_list_create()
{
/* memory allocation */
opj_procedure_list_t * l_validation = (opj_procedure_list_t *) opj_malloc(sizeof(opj_procedure_list_t));
if
(! l_validation)
{
return 00;
}
/* initialization */
memset(l_validation,0,sizeof(opj_procedure_list_t));
l_validation->m_nb_max_procedures = OPJ_VALIDATION_SIZE;
l_validation->m_procedures = (void**)opj_malloc(
OPJ_VALIDATION_SIZE * sizeof(opj_procedure));
if
(! l_validation->m_procedures)
{
opj_free(l_validation);
return 00;
}
memset(l_validation->m_procedures,0,OPJ_VALIDATION_SIZE * sizeof(opj_procedure));
return l_validation;
}
/**
* Destroys a validation list.
*
* @param p_list the list to destroy.
*/
void opj_procedure_list_destroy(opj_procedure_list_t * p_list)
{
if
(! p_list)
{
return;
}
/* initialization */
if
(p_list->m_procedures)
{
opj_free(p_list->m_procedures);
}
opj_free(p_list);
}
/**
* Adds a new validation procedure.
*
* @param p_validation_list the list of procedure to modify.
* @param p_procedure the procedure to add.
*/
bool opj_procedure_list_add_procedure (opj_procedure_list_t * p_validation_list, opj_procedure p_procedure)
{
if
(p_validation_list->m_nb_max_procedures == p_validation_list->m_nb_procedures)
{
p_validation_list->m_nb_max_procedures += OPJ_VALIDATION_SIZE;
p_validation_list->m_procedures = (void**)opj_realloc(
p_validation_list->m_procedures,p_validation_list->m_nb_max_procedures * sizeof(opj_procedure));
if
(! p_validation_list->m_procedures)
{
p_validation_list->m_nb_max_procedures = 0;
p_validation_list->m_nb_procedures = 0;
return false;
}
}
p_validation_list->m_procedures[p_validation_list->m_nb_procedures] = p_procedure;
++p_validation_list->m_nb_procedures;
return true;
}
/**
* Gets the number of validation procedures.
*
* @param p_validation_list the list of procedure to modify.
*
* @return the number of validation procedures.
*/
OPJ_UINT32 opj_procedure_list_get_nb_procedures (opj_procedure_list_t * p_validation_list)
{
return p_validation_list->m_nb_procedures;
}
/**
* Gets the pointer on the first validation procedure. This function is similar to the C++
* iterator class to iterate through all the procedures inside the validation list.
* the caller does not take ownership of the pointer.
*
* @param p_validation_list the list of procedure to get the first procedure from.
*
* @return a pointer to the first procedure.
*/
opj_procedure* opj_procedure_list_get_first_procedure (opj_procedure_list_t * p_validation_list)
{
return p_validation_list->m_procedures;
}
/**
* Clears the list of validation procedures.
*
* @param p_validation_list the list of procedure to clear.
*
*/
void opj_procedure_list_clear (opj_procedure_list_t * p_validation_list)
{
p_validation_list->m_nb_procedures = 0;
}