/*
* The copyright in this software is being made available under the 2-clauses
* BSD License, included below. This software may be subject to other third
* party and contributor rights, including patent rights, and no such rights
* are granted under this license.
*
* Copyright (c) 2005, Herve Drolon, FreeImage Team
* 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 "opj_includes.h"
opj_image_t* opj_image_create0(void)
{
opj_image_t *image = (opj_image_t*)opj_calloc(1, sizeof(opj_image_t));
return image;
}
opj_image_t* OPJ_CALLCONV opj_image_create(OPJ_UINT32 numcmpts,
opj_image_cmptparm_t *cmptparms, OPJ_COLOR_SPACE clrspc)
{
OPJ_UINT32 compno;
opj_image_t *image = NULL;
image = (opj_image_t*) opj_calloc(1, sizeof(opj_image_t));
if (image) {
image->color_space = clrspc;
image->numcomps = numcmpts;
/* allocate memory for the per-component information */
image->comps = (opj_image_comp_t*)opj_calloc(1,
image->numcomps * sizeof(opj_image_comp_t));
if (!image->comps) {
/* TODO replace with event manager, breaks API */
/* fprintf(stderr,"Unable to allocate memory for image.\n"); */
opj_image_destroy(image);
return NULL;
}
/* create the individual image components */
for (compno = 0; compno < numcmpts; compno++) {
opj_image_comp_t *comp = &image->comps[compno];
comp->dx = cmptparms[compno].dx;
comp->dy = cmptparms[compno].dy;
comp->w = cmptparms[compno].w;
comp->h = cmptparms[compno].h;
comp->x0 = cmptparms[compno].x0;
comp->y0 = cmptparms[compno].y0;
comp->prec = cmptparms[compno].prec;
comp->bpp = cmptparms[compno].bpp;
comp->sgnd = cmptparms[compno].sgnd;
if (comp->h != 0 &&
(OPJ_SIZE_T)comp->w > SIZE_MAX / comp->h / sizeof(OPJ_INT32)) {
/* TODO event manager */
opj_image_destroy(image);
return NULL;
}
comp->data = (OPJ_INT32*) opj_image_data_alloc(
(size_t)comp->w * comp->h * sizeof(OPJ_INT32));
if (!comp->data) {
/* TODO replace with event manager, breaks API */
/* fprintf(stderr,"Unable to allocate memory for image.\n"); */
opj_image_destroy(image);
return NULL;
}
memset(comp->data, 0, (size_t)comp->w * comp->h * sizeof(OPJ_INT32));
}
}
return image;
}
void OPJ_CALLCONV opj_image_destroy(opj_image_t *image)
{
if (image) {
if (image->comps) {
OPJ_UINT32 compno;
/* image components */
for (compno = 0; compno < image->numcomps; compno++) {
opj_image_comp_t *image_comp = &(image->comps[compno]);
if (image_comp->data) {
opj_image_data_free(image_comp->data);
}
}
opj_free(image->comps);
}
if (image->icc_profile_buf) {
opj_free(image->icc_profile_buf);
}
opj_free(image);
}
}
/**
* Updates the components characteristics of the image from the coding parameters.
*
* @param p_image_header the image header to update.
* @param p_cp the coding parameters from which to update the image.
*/
void opj_image_comp_header_update(opj_image_t * p_image_header,
const struct opj_cp * p_cp)
{
OPJ_UINT32 i, l_width, l_height;
OPJ_UINT32 l_x0, l_y0, l_x1, l_y1;
OPJ_UINT32 l_comp_x0, l_comp_y0, l_comp_x1, l_comp_y1;
opj_image_comp_t* l_img_comp = NULL;
l_x0 = opj_uint_max(p_cp->tx0, p_image_header->x0);
l_y0 = opj_uint_max(p_cp->ty0, p_image_header->y0);
l_x1 = p_cp->tx0 + (p_cp->tw - 1U) *
p_cp->tdx; /* validity of p_cp members used here checked in opj_j2k_read_siz. Can't overflow. */
l_y1 = p_cp->ty0 + (p_cp->th - 1U) * p_cp->tdy; /* can't overflow */
l_x1 = opj_uint_min(opj_uint_adds(l_x1, p_cp->tdx),
p_image_header->x1); /* use add saturated to prevent overflow */
l_y1 = opj_uint_min(opj_uint_adds(l_y1, p_cp->tdy),
p_image_header->y1); /* use add saturated to prevent overflow */
l_img_comp = p_image_header->comps;
for (i = 0; i < p_image_header->numcomps; ++i) {
l_comp_x0 = opj_uint_ceildiv(l_x0, l_img_comp->dx);
l_comp_y0 = opj_uint_ceildiv(l_y0, l_img_comp->dy);
l_comp_x1 = opj_uint_ceildiv(l_x1, l_img_comp->dx);
l_comp_y1 = opj_uint_ceildiv(l_y1, l_img_comp->dy);
l_width = opj_uint_ceildivpow2(l_comp_x1 - l_comp_x0, l_img_comp->factor);
l_height = opj_uint_ceildivpow2(l_comp_y1 - l_comp_y0, l_img_comp->factor);
l_img_comp->w = l_width;
l_img_comp->h = l_height;
l_img_comp->x0 = l_comp_x0;
l_img_comp->y0 = l_comp_y0;
++l_img_comp;
}
}
/**
* Copy only header of image and its component header (no data are copied)
* if dest image have data, they will be freed
*
* @param p_image_src the src image
* @param p_image_dest the dest image
*
*/
void opj_copy_image_header(const opj_image_t* p_image_src,
opj_image_t* p_image_dest)
{
OPJ_UINT32 compno;
/* preconditions */
assert(p_image_src != 00);
assert(p_image_dest != 00);
p_image_dest->x0 = p_image_src->x0;
p_image_dest->y0 = p_image_src->y0;
p_image_dest->x1 = p_image_src->x1;
p_image_dest->y1 = p_image_src->y1;
if (p_image_dest->comps) {
for (compno = 0; compno < p_image_dest->numcomps; compno++) {
opj_image_comp_t *image_comp = &(p_image_dest->comps[compno]);
if (image_comp->data) {
opj_image_data_free(image_comp->data);
}
}
opj_free(p_image_dest->comps);
p_image_dest->comps = NULL;
}
p_image_dest->numcomps = p_image_src->numcomps;
p_image_dest->comps = (opj_image_comp_t*) opj_malloc(p_image_dest->numcomps *
sizeof(opj_image_comp_t));
if (!p_image_dest->comps) {
p_image_dest->comps = NULL;
p_image_dest->numcomps = 0;
return;
}
for (compno = 0; compno < p_image_dest->numcomps; compno++) {
memcpy(&(p_image_dest->comps[compno]),
&(p_image_src->comps[compno]),
sizeof(opj_image_comp_t));
p_image_dest->comps[compno].data = NULL;
}
p_image_dest->color_space = p_image_src->color_space;
p_image_dest->icc_profile_len = p_image_src->icc_profile_len;
if (p_image_dest->icc_profile_len) {
p_image_dest->icc_profile_buf = (OPJ_BYTE*)opj_malloc(
p_image_dest->icc_profile_len);
if (!p_image_dest->icc_profile_buf) {
p_image_dest->icc_profile_buf = NULL;
p_image_dest->icc_profile_len = 0;
return;
}
memcpy(p_image_dest->icc_profile_buf,
p_image_src->icc_profile_buf,
p_image_src->icc_profile_len);
} else {
p_image_dest->icc_profile_buf = NULL;
}
return;
}
opj_image_t* OPJ_CALLCONV opj_image_tile_create(OPJ_UINT32 numcmpts,
opj_image_cmptparm_t *cmptparms, OPJ_COLOR_SPACE clrspc)
{
OPJ_UINT32 compno;
opj_image_t *image = 00;
image = (opj_image_t*) opj_calloc(1, sizeof(opj_image_t));
if (image) {
image->color_space = clrspc;
image->numcomps = numcmpts;
/* allocate memory for the per-component information */
image->comps = (opj_image_comp_t*)opj_calloc(image->numcomps,
sizeof(opj_image_comp_t));
if (!image->comps) {
opj_image_destroy(image);
return 00;
}
/* create the individual image components */
for (compno = 0; compno < numcmpts; compno++) {
opj_image_comp_t *comp = &image->comps[compno];
comp->dx = cmptparms[compno].dx;
comp->dy = cmptparms[compno].dy;
comp->w = cmptparms[compno].w;
comp->h = cmptparms[compno].h;
comp->x0 = cmptparms[compno].x0;
comp->y0 = cmptparms[compno].y0;
comp->prec = cmptparms[compno].prec;
comp->sgnd = cmptparms[compno].sgnd;
comp->data = 0;
}
}
return image;
}