+ info = color->jp2_cdef->info;
+ n = color->jp2_cdef->n;
+
+ for (i = 0; i < n; ++i) {
+ /* WATCH: acn = asoc - 1 ! */
+ asoc = info[i].asoc;
+ cn = info[i].cn;
+
+ if (cn >= image->numcomps) {
+ opj_event_msg(manager, EVT_WARNING, "opj_jp2_apply_cdef: cn=%d, numcomps=%d\n",
+ cn, image->numcomps);
+ continue;
+ }
+ if (asoc == 0 || asoc == 65535) {
+ image->comps[cn].alpha = info[i].typ;
+ continue;
+ }
+
+ acn = (OPJ_UINT16)(asoc - 1);
+ if (acn >= image->numcomps) {
+ opj_event_msg(manager, EVT_WARNING, "opj_jp2_apply_cdef: acn=%d, numcomps=%d\n",
+ acn, image->numcomps);
+ continue;
+ }
+
+ /* Swap only if color channel */
+ if ((cn != acn) && (info[i].typ == 0)) {
+ opj_image_comp_t saved;
+ OPJ_UINT16 j;
+
+ memcpy(&saved, &image->comps[cn], sizeof(opj_image_comp_t));
+ memcpy(&image->comps[cn], &image->comps[acn], sizeof(opj_image_comp_t));
+ memcpy(&image->comps[acn], &saved, sizeof(opj_image_comp_t));
+
+ /* Swap channels in following channel definitions, don't bother with j <= i that are already processed */
+ for (j = (OPJ_UINT16)(i + 1U); j < n ; ++j) {
+ if (info[j].cn == cn) {
+ info[j].cn = acn;
+ } else if (info[j].cn == acn) {
+ info[j].cn = cn;
+ }
+ /* asoc is related to color index. Do not update. */
+ }
+ }
+
+ image->comps[cn].alpha = info[i].typ;
+ }
+
+ if (color->jp2_cdef->info) {
+ opj_free(color->jp2_cdef->info);
+ }
+
+ opj_free(color->jp2_cdef);
+ color->jp2_cdef = NULL;
+
+}/* jp2_apply_cdef() */
+
+static OPJ_BOOL opj_jp2_read_cdef(opj_jp2_t * jp2,
+ OPJ_BYTE * p_cdef_header_data,
+ OPJ_UINT32 p_cdef_header_size,
+ opj_event_mgr_t * p_manager
+ )
+{
+ opj_jp2_cdef_info_t *cdef_info;
+ OPJ_UINT16 i;
+ OPJ_UINT32 l_value;
+
+ /* preconditions */
+ assert(jp2 != 00);
+ assert(p_cdef_header_data != 00);
+ assert(p_manager != 00);
+ (void)p_cdef_header_size;
+
+ /* Part 1, I.5.3.6: 'The shall be at most one Channel Definition box
+ * inside a JP2 Header box.'*/
+ if (jp2->color.jp2_cdef) {
+ return OPJ_FALSE;
+ }
+
+ if (p_cdef_header_size < 2) {
+ opj_event_msg(p_manager, EVT_ERROR, "Insufficient data for CDEF box.\n");
+ return OPJ_FALSE;
+ }
+
+ opj_read_bytes(p_cdef_header_data, &l_value, 2); /* N */
+ p_cdef_header_data += 2;
+
+ if ((OPJ_UINT16)l_value == 0) { /* szukw000: FIXME */
+ opj_event_msg(p_manager, EVT_ERROR,
+ "Number of channel description is equal to zero in CDEF box.\n");
+ return OPJ_FALSE;
+ }
+
+ if (p_cdef_header_size < 2 + (OPJ_UINT32)(OPJ_UINT16)l_value * 6) {
+ opj_event_msg(p_manager, EVT_ERROR, "Insufficient data for CDEF box.\n");
+ return OPJ_FALSE;
+ }
+
+ cdef_info = (opj_jp2_cdef_info_t*) opj_malloc(l_value * sizeof(
+ opj_jp2_cdef_info_t));
+ if (!cdef_info) {
+ return OPJ_FALSE;
+ }
+
+ jp2->color.jp2_cdef = (opj_jp2_cdef_t*)opj_malloc(sizeof(opj_jp2_cdef_t));
+ if (!jp2->color.jp2_cdef) {
+ opj_free(cdef_info);
+ return OPJ_FALSE;
+ }
+ jp2->color.jp2_cdef->info = cdef_info;
+ jp2->color.jp2_cdef->n = (OPJ_UINT16) l_value;
+
+ for (i = 0; i < jp2->color.jp2_cdef->n; ++i) {
+ opj_read_bytes(p_cdef_header_data, &l_value, 2); /* Cn^i */
+ p_cdef_header_data += 2;
+ cdef_info[i].cn = (OPJ_UINT16) l_value;
+
+ opj_read_bytes(p_cdef_header_data, &l_value, 2); /* Typ^i */
+ p_cdef_header_data += 2;
+ cdef_info[i].typ = (OPJ_UINT16) l_value;
+
+ opj_read_bytes(p_cdef_header_data, &l_value, 2); /* Asoc^i */
+ p_cdef_header_data += 2;
+ cdef_info[i].asoc = (OPJ_UINT16) l_value;
+ }
+
+ return OPJ_TRUE;
+}
+
+static OPJ_BOOL opj_jp2_read_colr(opj_jp2_t *jp2,
+ OPJ_BYTE * p_colr_header_data,
+ OPJ_UINT32 p_colr_header_size,
+ opj_event_mgr_t * p_manager
+ )
+{
+ OPJ_UINT32 l_value;
+
+ /* preconditions */
+ assert(jp2 != 00);
+ assert(p_colr_header_data != 00);
+ assert(p_manager != 00);
+
+ if (p_colr_header_size < 3) {
+ opj_event_msg(p_manager, EVT_ERROR, "Bad COLR header box (bad size)\n");
+ return OPJ_FALSE;
+ }
+
+ /* Part 1, I.5.3.3 : 'A conforming JP2 reader shall ignore all Colour
+ * Specification boxes after the first.'
+ */
+ if (jp2->color.jp2_has_colr) {
+ opj_event_msg(p_manager, EVT_INFO,
+ "A conforming JP2 reader shall ignore all Colour Specification boxes after the first, so we ignore this one.\n");
+ p_colr_header_data += p_colr_header_size;
+ return OPJ_TRUE;
+ }
+
+ opj_read_bytes(p_colr_header_data, &jp2->meth, 1); /* METH */
+ ++p_colr_header_data;
+
+ opj_read_bytes(p_colr_header_data, &jp2->precedence, 1); /* PRECEDENCE */
+ ++p_colr_header_data;
+
+ opj_read_bytes(p_colr_header_data, &jp2->approx, 1); /* APPROX */
+ ++p_colr_header_data;
+
+ if (jp2->meth == 1) {
+ if (p_colr_header_size < 7) {
+ opj_event_msg(p_manager, EVT_ERROR, "Bad COLR header box (bad size: %d)\n",
+ p_colr_header_size);
+ return OPJ_FALSE;
+ }
+ if ((p_colr_header_size > 7) &&
+ (jp2->enumcs != 14)) { /* handled below for CIELab) */
+ /* testcase Altona_Technical_v20_x4.pdf */
+ opj_event_msg(p_manager, EVT_WARNING, "Bad COLR header box (bad size: %d)\n",
+ p_colr_header_size);
+ }
+
+ opj_read_bytes(p_colr_header_data, &jp2->enumcs, 4); /* EnumCS */
+
+ p_colr_header_data += 4;
+
+ if (jp2->enumcs == 14) { /* CIELab */
+ OPJ_UINT32 *cielab;
+ OPJ_UINT32 rl, ol, ra, oa, rb, ob, il;
+
+ cielab = (OPJ_UINT32*)opj_malloc(9 * sizeof(OPJ_UINT32));
+ if (cielab == NULL) {
+ opj_event_msg(p_manager, EVT_ERROR, "Not enough memory for cielab\n");
+ return OPJ_FALSE;
+ }
+ cielab[0] = 14; /* enumcs */
+
+ /* default values */
+ rl = ra = rb = ol = oa = ob = 0;
+ il = 0x00443530; /* D50 */
+ cielab[1] = 0x44454600;/* DEF */
+
+ if (p_colr_header_size == 35) {
+ opj_read_bytes(p_colr_header_data, &rl, 4);
+ p_colr_header_data += 4;
+ opj_read_bytes(p_colr_header_data, &ol, 4);
+ p_colr_header_data += 4;
+ opj_read_bytes(p_colr_header_data, &ra, 4);
+ p_colr_header_data += 4;
+ opj_read_bytes(p_colr_header_data, &oa, 4);
+ p_colr_header_data += 4;
+ opj_read_bytes(p_colr_header_data, &rb, 4);
+ p_colr_header_data += 4;
+ opj_read_bytes(p_colr_header_data, &ob, 4);
+ p_colr_header_data += 4;
+ opj_read_bytes(p_colr_header_data, &il, 4);
+ p_colr_header_data += 4;
+
+ cielab[1] = 0;
+ } else if (p_colr_header_size != 7) {
+ opj_event_msg(p_manager, EVT_WARNING,
+ "Bad COLR header box (CIELab, bad size: %d)\n", p_colr_header_size);
+ }
+ cielab[2] = rl;
+ cielab[4] = ra;
+ cielab[6] = rb;
+ cielab[3] = ol;
+ cielab[5] = oa;
+ cielab[7] = ob;
+ cielab[8] = il;
+
+ jp2->color.icc_profile_buf = (OPJ_BYTE*)cielab;
+ jp2->color.icc_profile_len = 0;
+ }
+ jp2->color.jp2_has_colr = 1;
+ } else if (jp2->meth == 2) {
+ /* ICC profile */
+ OPJ_INT32 it_icc_value = 0;
+ OPJ_INT32 icc_len = (OPJ_INT32)p_colr_header_size - 3;
+
+ jp2->color.icc_profile_len = (OPJ_UINT32)icc_len;
+ jp2->color.icc_profile_buf = (OPJ_BYTE*) opj_calloc(1, (size_t)icc_len);
+ if (!jp2->color.icc_profile_buf) {
+ jp2->color.icc_profile_len = 0;
+ return OPJ_FALSE;
+ }
+
+ for (it_icc_value = 0; it_icc_value < icc_len; ++it_icc_value) {
+ opj_read_bytes(p_colr_header_data, &l_value, 1); /* icc values */
+ ++p_colr_header_data;
+ jp2->color.icc_profile_buf[it_icc_value] = (OPJ_BYTE) l_value;
+ }
+
+ jp2->color.jp2_has_colr = 1;
+ } else if (jp2->meth > 2) {
+ /* ISO/IEC 15444-1:2004 (E), Table I.9 Legal METH values:
+ conforming JP2 reader shall ignore the entire Colour Specification box.*/
+ opj_event_msg(p_manager, EVT_INFO,
+ "COLR BOX meth value is not a regular value (%d), "
+ "so we will ignore the entire Colour Specification box. \n", jp2->meth);
+ }
+ return OPJ_TRUE;
+}
+
+OPJ_BOOL opj_jp2_decode(opj_jp2_t *jp2,
+ opj_stream_private_t *p_stream,
+ opj_image_t* p_image,
+ opj_event_mgr_t * p_manager)
+{
+ if (!p_image) {
+ return OPJ_FALSE;
+ }
+
+ /* J2K decoding */
+ if (! opj_j2k_decode(jp2->j2k, p_stream, p_image, p_manager)) {
+ opj_event_msg(p_manager, EVT_ERROR,
+ "Failed to decode the codestream in the JP2 file\n");
+ return OPJ_FALSE;
+ }
+
+ if (!jp2->ignore_pclr_cmap_cdef) {
+ if (!opj_jp2_check_color(p_image, &(jp2->color), p_manager)) {
+ return OPJ_FALSE;
+ }
+
+ /* Set Image Color Space */
+ if (jp2->enumcs == 16) {
+ p_image->color_space = OPJ_CLRSPC_SRGB;
+ } else if (jp2->enumcs == 17) {
+ p_image->color_space = OPJ_CLRSPC_GRAY;
+ } else if (jp2->enumcs == 18) {
+ p_image->color_space = OPJ_CLRSPC_SYCC;
+ } else if (jp2->enumcs == 24) {
+ p_image->color_space = OPJ_CLRSPC_EYCC;
+ } else if (jp2->enumcs == 12) {
+ p_image->color_space = OPJ_CLRSPC_CMYK;
+ } else {
+ p_image->color_space = OPJ_CLRSPC_UNKNOWN;
+ }
+
+ if (jp2->color.jp2_pclr) {
+ /* Part 1, I.5.3.4: Either both or none : */
+ if (!jp2->color.jp2_pclr->cmap) {
+ opj_jp2_free_pclr(&(jp2->color));
+ } else {
+ if (!opj_jp2_apply_pclr(p_image, &(jp2->color), p_manager)) {
+ return OPJ_FALSE;
+ }
+ }
+ }
+
+ /* Apply the color space if needed */
+ if (jp2->color.jp2_cdef) {
+ opj_jp2_apply_cdef(p_image, &(jp2->color), p_manager);
+ }
+
+ if (jp2->color.icc_profile_buf) {
+ p_image->icc_profile_buf = jp2->color.icc_profile_buf;
+ p_image->icc_profile_len = jp2->color.icc_profile_len;
+ jp2->color.icc_profile_buf = NULL;
+ }
+ }
+
+ return OPJ_TRUE;
+}
+
+static OPJ_BOOL opj_jp2_write_jp2h(opj_jp2_t *jp2,
+ opj_stream_private_t *stream,
+ opj_event_mgr_t * p_manager
+ )
+{
+ opj_jp2_img_header_writer_handler_t l_writers [4];
+ opj_jp2_img_header_writer_handler_t * l_current_writer;
+
+ OPJ_INT32 i, l_nb_pass;
+ /* size of data for super box*/
+ OPJ_UINT32 l_jp2h_size = 8;
+ OPJ_BOOL l_result = OPJ_TRUE;
+
+ /* to store the data of the super box */
+ OPJ_BYTE l_jp2h_data [8];
+
+ /* preconditions */
+ assert(stream != 00);
+ assert(jp2 != 00);
+ assert(p_manager != 00);
+
+ memset(l_writers, 0, sizeof(l_writers));
+
+ if (jp2->bpc == 255) {
+ l_nb_pass = 3;
+ l_writers[0].handler = opj_jp2_write_ihdr;
+ l_writers[1].handler = opj_jp2_write_bpcc;
+ l_writers[2].handler = opj_jp2_write_colr;
+ } else {
+ l_nb_pass = 2;
+ l_writers[0].handler = opj_jp2_write_ihdr;
+ l_writers[1].handler = opj_jp2_write_colr;
+ }
+
+ if (jp2->color.jp2_cdef != NULL) {
+ l_writers[l_nb_pass].handler = opj_jp2_write_cdef;
+ l_nb_pass++;
+ }
+
+ /* write box header */
+ /* write JP2H type */
+ opj_write_bytes(l_jp2h_data + 4, JP2_JP2H, 4);
+
+ l_current_writer = l_writers;
+ for (i = 0; i < l_nb_pass; ++i) {
+ l_current_writer->m_data = l_current_writer->handler(jp2,
+ &(l_current_writer->m_size));
+ if (l_current_writer->m_data == 00) {
+ opj_event_msg(p_manager, EVT_ERROR,
+ "Not enough memory to hold JP2 Header data\n");
+ l_result = OPJ_FALSE;
+ break;
+ }
+
+ l_jp2h_size += l_current_writer->m_size;
+ ++l_current_writer;
+ }
+
+ if (! l_result) {
+ l_current_writer = l_writers;
+ for (i = 0; i < l_nb_pass; ++i) {
+ if (l_current_writer->m_data != 00) {
+ opj_free(l_current_writer->m_data);
+ }
+ ++l_current_writer;
+ }
+
+ return OPJ_FALSE;
+ }
+
+ /* write super box size */
+ opj_write_bytes(l_jp2h_data, l_jp2h_size, 4);
+
+ /* write super box data on stream */
+ if (opj_stream_write_data(stream, l_jp2h_data, 8, p_manager) != 8) {
+ opj_event_msg(p_manager, EVT_ERROR,
+ "Stream error while writing JP2 Header box\n");
+ l_result = OPJ_FALSE;
+ }
+
+ if (l_result) {
+ l_current_writer = l_writers;
+ for (i = 0; i < l_nb_pass; ++i) {
+ if (opj_stream_write_data(stream, l_current_writer->m_data,
+ l_current_writer->m_size, p_manager) != l_current_writer->m_size) {
+ opj_event_msg(p_manager, EVT_ERROR,
+ "Stream error while writing JP2 Header box\n");
+ l_result = OPJ_FALSE;
+ break;
+ }
+ ++l_current_writer;
+ }
+ }
+
+ l_current_writer = l_writers;
+
+ /* cleanup */
+ for (i = 0; i < l_nb_pass; ++i) {
+ if (l_current_writer->m_data != 00) {
+ opj_free(l_current_writer->m_data);
+ }
+ ++l_current_writer;
+ }
+
+ return l_result;
+}
+
+static OPJ_BOOL opj_jp2_write_ftyp(opj_jp2_t *jp2,
+ opj_stream_private_t *cio,
+ opj_event_mgr_t * p_manager)
+{
+ OPJ_UINT32 i;
+ OPJ_UINT32 l_ftyp_size;
+ OPJ_BYTE * l_ftyp_data, * l_current_data_ptr;
+ OPJ_BOOL l_result;
+
+ /* preconditions */
+ assert(cio != 00);
+ assert(jp2 != 00);
+ assert(p_manager != 00);
+ l_ftyp_size = 16 + 4 * jp2->numcl;
+
+ l_ftyp_data = (OPJ_BYTE *) opj_calloc(1, l_ftyp_size);
+
+ if (l_ftyp_data == 00) {
+ opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to handle ftyp data\n");
+ return OPJ_FALSE;
+ }
+
+ l_current_data_ptr = l_ftyp_data;
+
+ opj_write_bytes(l_current_data_ptr, l_ftyp_size, 4); /* box size */
+ l_current_data_ptr += 4;
+
+ opj_write_bytes(l_current_data_ptr, JP2_FTYP, 4); /* FTYP */
+ l_current_data_ptr += 4;
+
+ opj_write_bytes(l_current_data_ptr, jp2->brand, 4); /* BR */
+ l_current_data_ptr += 4;
+
+ opj_write_bytes(l_current_data_ptr, jp2->minversion, 4); /* MinV */
+ l_current_data_ptr += 4;
+
+ for (i = 0; i < jp2->numcl; i++) {
+ opj_write_bytes(l_current_data_ptr, jp2->cl[i], 4); /* CL */
+ }
+
+ l_result = (opj_stream_write_data(cio, l_ftyp_data, l_ftyp_size,
+ p_manager) == l_ftyp_size);
+ if (! l_result) {
+ opj_event_msg(p_manager, EVT_ERROR,
+ "Error while writing ftyp data to stream\n");
+ }
+
+ opj_free(l_ftyp_data);
+
+ return l_result;
+}
+
+static OPJ_BOOL opj_jp2_write_jp2c(opj_jp2_t *jp2,
+ opj_stream_private_t *cio,
+ opj_event_mgr_t * p_manager)
+{
+ OPJ_OFF_T j2k_codestream_exit;
+ OPJ_BYTE l_data_header [8];
+
+ /* preconditions */
+ assert(jp2 != 00);
+ assert(cio != 00);
+ assert(p_manager != 00);
+ assert(opj_stream_has_seek(cio));
+
+ j2k_codestream_exit = opj_stream_tell(cio);
+ opj_write_bytes(l_data_header,
+ (OPJ_UINT32)(j2k_codestream_exit - jp2->j2k_codestream_offset),
+ 4); /* size of codestream */
+ opj_write_bytes(l_data_header + 4, JP2_JP2C,
+ 4); /* JP2C */
+
+ if (! opj_stream_seek(cio, jp2->j2k_codestream_offset, p_manager)) {
+ opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
+ return OPJ_FALSE;
+ }
+
+ if (opj_stream_write_data(cio, l_data_header, 8, p_manager) != 8) {
+ opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
+ return OPJ_FALSE;
+ }
+
+ if (! opj_stream_seek(cio, j2k_codestream_exit, p_manager)) {
+ opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
+ return OPJ_FALSE;
+ }
+
+ return OPJ_TRUE;
+}
+
+static OPJ_BOOL opj_jp2_write_jp(opj_jp2_t *jp2,
+ opj_stream_private_t *cio,
+ opj_event_mgr_t * p_manager)
+{
+ /* 12 bytes will be read */
+ OPJ_BYTE l_signature_data [12];
+
+ /* preconditions */
+ assert(cio != 00);
+ assert(jp2 != 00);
+ assert(p_manager != 00);
+
+ OPJ_UNUSED(jp2);
+
+ /* write box length */
+ opj_write_bytes(l_signature_data, 12, 4);
+ /* writes box type */
+ opj_write_bytes(l_signature_data + 4, JP2_JP, 4);
+ /* writes magic number*/
+ opj_write_bytes(l_signature_data + 8, 0x0d0a870a, 4);
+
+ if (opj_stream_write_data(cio, l_signature_data, 12, p_manager) != 12) {
+ return OPJ_FALSE;
+ }
+
+ return OPJ_TRUE;
+}
+
+/* ----------------------------------------------------------------------- */
+/* JP2 decoder interface */
+/* ----------------------------------------------------------------------- */
+
+void opj_jp2_setup_decoder(opj_jp2_t *jp2, opj_dparameters_t *parameters)
+{
+ /* setup the J2K codec */
+ opj_j2k_setup_decoder(jp2->j2k, parameters);
+
+ /* further JP2 initializations go here */
+ jp2->color.jp2_has_colr = 0;
+ jp2->ignore_pclr_cmap_cdef = parameters->flags &
+ OPJ_DPARAMETERS_IGNORE_PCLR_CMAP_CDEF_FLAG;
+}
+
+OPJ_BOOL opj_jp2_set_threads(opj_jp2_t *jp2, OPJ_UINT32 num_threads)
+{
+ return opj_j2k_set_threads(jp2->j2k, num_threads);
+}
+
+/* ----------------------------------------------------------------------- */
+/* JP2 encoder interface */
+/* ----------------------------------------------------------------------- */
+
+OPJ_BOOL opj_jp2_setup_encoder(opj_jp2_t *jp2,
+ opj_cparameters_t *parameters,
+ opj_image_t *image,
+ opj_event_mgr_t * p_manager)
+{
+ OPJ_UINT32 i;
+ OPJ_UINT32 depth_0;
+ OPJ_UINT32 sign;
+ OPJ_UINT32 alpha_count;
+ OPJ_UINT32 color_channels = 0U;
+ OPJ_UINT32 alpha_channel = 0U;
+
+
+ if (!jp2 || !parameters || !image) {
+ return OPJ_FALSE;
+ }
+
+ /* setup the J2K codec */
+ /* ------------------- */
+
+ /* Check if number of components respects standard */
+ if (image->numcomps < 1 || image->numcomps > 16384) {
+ opj_event_msg(p_manager, EVT_ERROR,
+ "Invalid number of components specified while setting up JP2 encoder\n");
+ return OPJ_FALSE;
+ }
+
+ if (opj_j2k_setup_encoder(jp2->j2k, parameters, image,
+ p_manager) == OPJ_FALSE) {
+ return OPJ_FALSE;
+ }
+
+ /* setup the JP2 codec */
+ /* ------------------- */
+
+ /* Profile box */
+
+ jp2->brand = JP2_JP2; /* BR */
+ jp2->minversion = 0; /* MinV */
+ jp2->numcl = 1;
+ jp2->cl = (OPJ_UINT32*) opj_malloc(jp2->numcl * sizeof(OPJ_UINT32));
+ if (!jp2->cl) {
+ opj_event_msg(p_manager, EVT_ERROR,
+ "Not enough memory when setup the JP2 encoder\n");
+ return OPJ_FALSE;
+ }
+ jp2->cl[0] = JP2_JP2; /* CL0 : JP2 */
+
+ /* Image Header box */
+
+ jp2->numcomps = image->numcomps; /* NC */
+ jp2->comps = (opj_jp2_comps_t*) opj_malloc(jp2->numcomps * sizeof(
+ opj_jp2_comps_t));
+ if (!jp2->comps) {
+ opj_event_msg(p_manager, EVT_ERROR,
+ "Not enough memory when setup the JP2 encoder\n");
+ /* Memory of jp2->cl will be freed by opj_jp2_destroy */
+ return OPJ_FALSE;
+ }
+
+ jp2->h = image->y1 - image->y0; /* HEIGHT */
+ jp2->w = image->x1 - image->x0; /* WIDTH */
+ /* BPC */
+ depth_0 = image->comps[0].prec - 1;
+ sign = image->comps[0].sgnd;
+ jp2->bpc = depth_0 + (sign << 7);
+ for (i = 1; i < image->numcomps; i++) {
+ OPJ_UINT32 depth = image->comps[i].prec - 1;
+ sign = image->comps[i].sgnd;
+ if (depth_0 != depth) {
+ jp2->bpc = 255;
+ }
+ }
+ jp2->C = 7; /* C : Always 7 */
+ jp2->UnkC = 0; /* UnkC, colorspace specified in colr box */
+ jp2->IPR = 0; /* IPR, no intellectual property */
+
+ /* BitsPerComponent box */
+ for (i = 0; i < image->numcomps; i++) {
+ jp2->comps[i].bpcc = image->comps[i].prec - 1 + (image->comps[i].sgnd << 7);
+ }
+
+ /* Colour Specification box */
+ if (image->icc_profile_len) {
+ jp2->meth = 2;
+ jp2->enumcs = 0;
+ } else {
+ jp2->meth = 1;
+ if (image->color_space == 1) {
+ jp2->enumcs = 16; /* sRGB as defined by IEC 61966-2-1 */
+ } else if (image->color_space == 2) {
+ jp2->enumcs = 17; /* greyscale */
+ } else if (image->color_space == 3) {
+ jp2->enumcs = 18; /* YUV */
+ }
+ }
+
+ /* Channel Definition box */
+ /* FIXME not provided by parameters */
+ /* We try to do what we can... */
+ alpha_count = 0U;
+ for (i = 0; i < image->numcomps; i++) {
+ if (image->comps[i].alpha != 0) {
+ alpha_count++;
+ alpha_channel = i;
+ }
+ }
+ if (alpha_count == 1U) { /* no way to deal with more than 1 alpha channel */
+ switch (jp2->enumcs) {
+ case 16:
+ case 18:
+ color_channels = 3;
+ break;
+ case 17:
+ color_channels = 1;
+ break;
+ default:
+ alpha_count = 0U;
+ break;
+ }
+ if (alpha_count == 0U) {
+ opj_event_msg(p_manager, EVT_WARNING,
+ "Alpha channel specified but unknown enumcs. No cdef box will be created.\n");
+ } else if (image->numcomps < (color_channels + 1)) {
+ opj_event_msg(p_manager, EVT_WARNING,
+ "Alpha channel specified but not enough image components for an automatic cdef box creation.\n");
+ alpha_count = 0U;
+ } else if ((OPJ_UINT32)alpha_channel < color_channels) {
+ opj_event_msg(p_manager, EVT_WARNING,
+ "Alpha channel position conflicts with color channel. No cdef box will be created.\n");
+ alpha_count = 0U;
+ }
+ } else if (alpha_count > 1) {
+ opj_event_msg(p_manager, EVT_WARNING,
+ "Multiple alpha channels specified. No cdef box will be created.\n");
+ }
+ if (alpha_count == 1U) { /* if here, we know what we can do */
+ jp2->color.jp2_cdef = (opj_jp2_cdef_t*)opj_malloc(sizeof(opj_jp2_cdef_t));
+ if (!jp2->color.jp2_cdef) {
+ opj_event_msg(p_manager, EVT_ERROR,
+ "Not enough memory to setup the JP2 encoder\n");
+ return OPJ_FALSE;
+ }
+ /* no memset needed, all values will be overwritten except if jp2->color.jp2_cdef->info allocation fails, */
+ /* in which case jp2->color.jp2_cdef->info will be NULL => valid for destruction */
+ jp2->color.jp2_cdef->info = (opj_jp2_cdef_info_t*) opj_malloc(
+ image->numcomps * sizeof(opj_jp2_cdef_info_t));
+ if (!jp2->color.jp2_cdef->info) {
+ /* memory will be freed by opj_jp2_destroy */
+ opj_event_msg(p_manager, EVT_ERROR,
+ "Not enough memory to setup the JP2 encoder\n");
+ return OPJ_FALSE;
+ }
+ jp2->color.jp2_cdef->n = (OPJ_UINT16)
+ image->numcomps; /* cast is valid : image->numcomps [1,16384] */
+ for (i = 0U; i < color_channels; i++) {
+ jp2->color.jp2_cdef->info[i].cn = (OPJ_UINT16)
+ i; /* cast is valid : image->numcomps [1,16384] */
+ jp2->color.jp2_cdef->info[i].typ = 0U;
+ jp2->color.jp2_cdef->info[i].asoc = (OPJ_UINT16)(i +
+ 1U); /* No overflow + cast is valid : image->numcomps [1,16384] */
+ }
+ for (; i < image->numcomps; i++) {
+ if (image->comps[i].alpha != 0) { /* we'll be here exactly once */
+ jp2->color.jp2_cdef->info[i].cn = (OPJ_UINT16)
+ i; /* cast is valid : image->numcomps [1,16384] */
+ jp2->color.jp2_cdef->info[i].typ = 1U; /* Opacity channel */
+ jp2->color.jp2_cdef->info[i].asoc =
+ 0U; /* Apply alpha channel to the whole image */
+ } else {
+ /* Unknown channel */
+ jp2->color.jp2_cdef->info[i].cn = (OPJ_UINT16)
+ i; /* cast is valid : image->numcomps [1,16384] */
+ jp2->color.jp2_cdef->info[i].typ = 65535U;
+ jp2->color.jp2_cdef->info[i].asoc = 65535U;
+ }
+ }
+ }
+
+ jp2->precedence = 0; /* PRECEDENCE */
+ jp2->approx = 0; /* APPROX */
+
+ jp2->jpip_on = parameters->jpip_on;
+
+ return OPJ_TRUE;
+}
+
+OPJ_BOOL opj_jp2_encode(opj_jp2_t *jp2,
+ opj_stream_private_t *stream,
+ opj_event_mgr_t * p_manager)
+{
+ return opj_j2k_encode(jp2->j2k, stream, p_manager);
+}
+
+OPJ_BOOL opj_jp2_end_decompress(opj_jp2_t *jp2,
+ opj_stream_private_t *cio,
+ opj_event_mgr_t * p_manager
+ )
+{
+ /* preconditions */
+ assert(jp2 != 00);
+ assert(cio != 00);
+ assert(p_manager != 00);
+
+ /* customization of the end encoding */
+ if (! opj_jp2_setup_end_header_reading(jp2, p_manager)) {
+ return OPJ_FALSE;
+ }
+
+ /* write header */
+ if (! opj_jp2_exec(jp2, jp2->m_procedure_list, cio, p_manager)) {
+ return OPJ_FALSE;
+ }
+
+ return opj_j2k_end_decompress(jp2->j2k, cio, p_manager);
+}
+
+OPJ_BOOL opj_jp2_end_compress(opj_jp2_t *jp2,
+ opj_stream_private_t *cio,
+ opj_event_mgr_t * p_manager
+ )
+{
+ /* preconditions */
+ assert(jp2 != 00);
+ assert(cio != 00);
+ assert(p_manager != 00);
+
+ /* customization of the end encoding */
+ if (! opj_jp2_setup_end_header_writing(jp2, p_manager)) {
+ return OPJ_FALSE;
+ }
+
+ if (! opj_j2k_end_compress(jp2->j2k, cio, p_manager)) {
+ return OPJ_FALSE;
+ }
+
+ /* write header */
+ return opj_jp2_exec(jp2, jp2->m_procedure_list, cio, p_manager);
+}
+
+static OPJ_BOOL opj_jp2_setup_end_header_writing(opj_jp2_t *jp2,
+ opj_event_mgr_t * p_manager)
+{
+ /* preconditions */
+ assert(jp2 != 00);
+ assert(p_manager != 00);
+
+#ifdef USE_JPIP
+ if (jp2->jpip_on) {
+ if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
+ (opj_procedure)opj_jpip_write_iptr, p_manager)) {
+ return OPJ_FALSE;
+ }
+ }
+#endif
+ if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
+ (opj_procedure)opj_jp2_write_jp2c, p_manager)) {
+ return OPJ_FALSE;
+ }
+ /* DEVELOPER CORNER, add your custom procedures */
+#ifdef USE_JPIP
+ if (jp2->jpip_on) {
+ if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
+ (opj_procedure)opj_jpip_write_cidx, p_manager)) {
+ return OPJ_FALSE;
+ }
+ if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
+ (opj_procedure)opj_jpip_write_fidx, p_manager)) {
+ return OPJ_FALSE;
+ }
+ }
+#endif
+ return OPJ_TRUE;
+}
+
+static OPJ_BOOL opj_jp2_setup_end_header_reading(opj_jp2_t *jp2,
+ opj_event_mgr_t * p_manager)
+{
+ /* preconditions */
+ assert(jp2 != 00);
+ assert(p_manager != 00);
+
+ if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
+ (opj_procedure)opj_jp2_read_header_procedure, p_manager)) {
+ return OPJ_FALSE;
+ }
+ /* DEVELOPER CORNER, add your custom procedures */
+
+ return OPJ_TRUE;
+}
+
+static OPJ_BOOL opj_jp2_default_validation(opj_jp2_t * jp2,
+ opj_stream_private_t *cio,
+ opj_event_mgr_t * p_manager
+ )
+{
+ OPJ_BOOL l_is_valid = OPJ_TRUE;
+ OPJ_UINT32 i;
+
+ /* preconditions */
+ assert(jp2 != 00);
+ assert(cio != 00);
+ assert(p_manager != 00);
+
+ OPJ_UNUSED(p_manager);
+
+ /* JPEG2000 codec validation */
+
+ /* STATE checking */
+ /* make sure the state is at 0 */
+ l_is_valid &= (jp2->jp2_state == JP2_STATE_NONE);
+
+ /* make sure not reading a jp2h ???? WEIRD */
+ l_is_valid &= (jp2->jp2_img_state == JP2_IMG_STATE_NONE);
+
+ /* POINTER validation */
+ /* make sure a j2k codec is present */
+ l_is_valid &= (jp2->j2k != 00);
+
+ /* make sure a procedure list is present */
+ l_is_valid &= (jp2->m_procedure_list != 00);
+
+ /* make sure a validation list is present */
+ l_is_valid &= (jp2->m_validation_list != 00);
+
+ /* PARAMETER VALIDATION */
+ /* number of components */
+ l_is_valid &= (jp2->numcl > 0);
+ /* width */
+ l_is_valid &= (jp2->h > 0);
+ /* height */
+ l_is_valid &= (jp2->w > 0);
+ /* precision */
+ for (i = 0; i < jp2->numcomps; ++i) {
+ l_is_valid &= ((jp2->comps[i].bpcc & 0x7FU) <
+ 38U); /* 0 is valid, ignore sign for check */
+ }
+
+ /* METH */
+ l_is_valid &= ((jp2->meth > 0) && (jp2->meth < 3));
+
+ /* stream validation */
+ /* back and forth is needed */
+ l_is_valid &= opj_stream_has_seek(cio);
+
+ return l_is_valid;
+}
+
+static OPJ_BOOL opj_jp2_read_header_procedure(opj_jp2_t *jp2,
+ opj_stream_private_t *stream,
+ opj_event_mgr_t * p_manager
+ )
+{
+ opj_jp2_box_t box;
+ OPJ_UINT32 l_nb_bytes_read;
+ const opj_jp2_header_handler_t * l_current_handler;
+ const opj_jp2_header_handler_t * l_current_handler_misplaced;
+ OPJ_UINT32 l_last_data_size = OPJ_BOX_SIZE;
+ OPJ_UINT32 l_current_data_size;
+ OPJ_BYTE * l_current_data = 00;
+
+ /* preconditions */
+ assert(stream != 00);
+ assert(jp2 != 00);
+ assert(p_manager != 00);
+
+ l_current_data = (OPJ_BYTE*)opj_calloc(1, l_last_data_size);
+
+ if (l_current_data == 00) {
+ opj_event_msg(p_manager, EVT_ERROR,
+ "Not enough memory to handle jpeg2000 file header\n");
+ return OPJ_FALSE;
+ }
+
+ while (opj_jp2_read_boxhdr(&box, &l_nb_bytes_read, stream, p_manager)) {
+ /* is it the codestream box ? */
+ if (box.type == JP2_JP2C) {
+ if (jp2->jp2_state & JP2_STATE_HEADER) {
+ jp2->jp2_state |= JP2_STATE_CODESTREAM;
+ opj_free(l_current_data);
+ return OPJ_TRUE;
+ } else {
+ opj_event_msg(p_manager, EVT_ERROR, "bad placed jpeg codestream\n");
+ opj_free(l_current_data);
+ return OPJ_FALSE;
+ }
+ } else if (box.length == 0) {
+ opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n");
+ opj_free(l_current_data);
+ return OPJ_FALSE;
+ }
+ /* testcase 1851.pdf.SIGSEGV.ce9.948 */
+ else if (box.length < l_nb_bytes_read) {
+ opj_event_msg(p_manager, EVT_ERROR, "invalid box size %d (%x)\n", box.length,
+ box.type);
+ opj_free(l_current_data);
+ return OPJ_FALSE;
+ }
+
+ l_current_handler = opj_jp2_find_handler(box.type);
+ l_current_handler_misplaced = opj_jp2_img_find_handler(box.type);
+ l_current_data_size = box.length - l_nb_bytes_read;
+
+ if ((l_current_handler != 00) || (l_current_handler_misplaced != 00)) {
+ if (l_current_handler == 00) {
+ opj_event_msg(p_manager, EVT_WARNING,
+ "Found a misplaced '%c%c%c%c' box outside jp2h box\n",
+ (OPJ_BYTE)(box.type >> 24), (OPJ_BYTE)(box.type >> 16),
+ (OPJ_BYTE)(box.type >> 8), (OPJ_BYTE)(box.type >> 0));
+ if (jp2->jp2_state & JP2_STATE_HEADER) {
+ /* read anyway, we already have jp2h */
+ l_current_handler = l_current_handler_misplaced;
+ } else {
+ opj_event_msg(p_manager, EVT_WARNING,
+ "JPEG2000 Header box not read yet, '%c%c%c%c' box will be ignored\n",
+ (OPJ_BYTE)(box.type >> 24), (OPJ_BYTE)(box.type >> 16),
+ (OPJ_BYTE)(box.type >> 8), (OPJ_BYTE)(box.type >> 0));
+ jp2->jp2_state |= JP2_STATE_UNKNOWN;
+ if (opj_stream_skip(stream, l_current_data_size,
+ p_manager) != l_current_data_size) {
+ opj_event_msg(p_manager, EVT_ERROR,
+ "Problem with skipping JPEG2000 box, stream error\n");
+ opj_free(l_current_data);
+ return OPJ_FALSE;
+ }
+ continue;
+ }
+ }
+ if ((OPJ_OFF_T)l_current_data_size > opj_stream_get_number_byte_left(stream)) {
+ /* do not even try to malloc if we can't read */
+ opj_event_msg(p_manager, EVT_ERROR,
+ "Invalid box size %d for box '%c%c%c%c'. Need %d bytes, %d bytes remaining \n",
+ box.length, (OPJ_BYTE)(box.type >> 24), (OPJ_BYTE)(box.type >> 16),
+ (OPJ_BYTE)(box.type >> 8), (OPJ_BYTE)(box.type >> 0), l_current_data_size,
+ (OPJ_UINT32)opj_stream_get_number_byte_left(stream));
+ opj_free(l_current_data);
+ return OPJ_FALSE;
+ }
+ if (l_current_data_size > l_last_data_size) {
+ OPJ_BYTE* new_current_data = (OPJ_BYTE*)opj_realloc(l_current_data,
+ l_current_data_size);
+ if (!new_current_data) {
+ opj_free(l_current_data);
+ opj_event_msg(p_manager, EVT_ERROR,
+ "Not enough memory to handle jpeg2000 box\n");
+ return OPJ_FALSE;
+ }
+ l_current_data = new_current_data;
+ l_last_data_size = l_current_data_size;
+ }
+
+ l_nb_bytes_read = (OPJ_UINT32)opj_stream_read_data(stream, l_current_data,
+ l_current_data_size, p_manager);
+ if (l_nb_bytes_read != l_current_data_size) {
+ opj_event_msg(p_manager, EVT_ERROR,
+ "Problem with reading JPEG2000 box, stream error\n");
+ opj_free(l_current_data);
+ return OPJ_FALSE;
+ }
+
+ if (! l_current_handler->handler(jp2, l_current_data, l_current_data_size,
+ p_manager)) {
+ opj_free(l_current_data);
+ return OPJ_FALSE;
+ }
+ } else {
+ if (!(jp2->jp2_state & JP2_STATE_SIGNATURE)) {
+ opj_event_msg(p_manager, EVT_ERROR,
+ "Malformed JP2 file format: first box must be JPEG 2000 signature box\n");
+ opj_free(l_current_data);
+ return OPJ_FALSE;
+ }
+ if (!(jp2->jp2_state & JP2_STATE_FILE_TYPE)) {
+ opj_event_msg(p_manager, EVT_ERROR,
+ "Malformed JP2 file format: second box must be file type box\n");
+ opj_free(l_current_data);
+ return OPJ_FALSE;
+ }
+ jp2->jp2_state |= JP2_STATE_UNKNOWN;
+ if (opj_stream_skip(stream, l_current_data_size,
+ p_manager) != l_current_data_size) {
+ if (jp2->jp2_state & JP2_STATE_CODESTREAM) {
+ /* If we already read the codestream, do not error out */
+ /* Needed for data/input/nonregression/issue254.jp2 */
+ opj_event_msg(p_manager, EVT_WARNING,
+ "Problem with skipping JPEG2000 box, stream error\n");
+ opj_free(l_current_data);
+ return OPJ_TRUE;
+ } else {
+ opj_event_msg(p_manager, EVT_ERROR,
+ "Problem with skipping JPEG2000 box, stream error\n");
+ opj_free(l_current_data);
+ return OPJ_FALSE;
+ }
+ }
+ }
+ }
+
+ opj_free(l_current_data);
+
+ return OPJ_TRUE;
+}
+
+/**
+ * Executes the given procedures on the given codec.