| /* |
| * 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(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; |
| } |
