diff options
Diffstat (limited to 'src/3rdparty/jasper/src/libjasper/ras/ras_dec.c')
| -rw-r--r-- | src/3rdparty/jasper/src/libjasper/ras/ras_dec.c | 398 |
1 files changed, 0 insertions, 398 deletions
diff --git a/src/3rdparty/jasper/src/libjasper/ras/ras_dec.c b/src/3rdparty/jasper/src/libjasper/ras/ras_dec.c deleted file mode 100644 index ebae2b6..0000000 --- a/src/3rdparty/jasper/src/libjasper/ras/ras_dec.c +++ /dev/null @@ -1,398 +0,0 @@ -/* - * Copyright (c) 1999-2000 Image Power, Inc. and the University of - * British Columbia. - * Copyright (c) 2001-2003 Michael David Adams. - * All rights reserved. - */ - -/* __START_OF_JASPER_LICENSE__ - * - * JasPer License Version 2.0 - * - * Copyright (c) 2001-2006 Michael David Adams - * Copyright (c) 1999-2000 Image Power, Inc. - * Copyright (c) 1999-2000 The University of British Columbia - * - * All rights reserved. - * - * Permission is hereby granted, free of charge, to any person (the - * "User") obtaining a copy of this software and associated documentation - * files (the "Software"), to deal in the Software without restriction, - * including without limitation the rights to use, copy, modify, merge, - * publish, distribute, and/or sell copies of the Software, and to permit - * persons to whom the Software is furnished to do so, subject to the - * following conditions: - * - * 1. The above copyright notices and this permission notice (which - * includes the disclaimer below) shall be included in all copies or - * substantial portions of the Software. - * - * 2. The name of a copyright holder shall not be used to endorse or - * promote products derived from the Software without specific prior - * written permission. - * - * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS - * LICENSE. NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER - * THIS DISCLAIMER. THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS - * "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING - * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A - * PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO - * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL - * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING - * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, - * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION - * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. NO ASSURANCES ARE - * PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE - * THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY. - * EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS - * BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL - * PROPERTY RIGHTS OR OTHERWISE. AS A CONDITION TO EXERCISING THE RIGHTS - * GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE - * ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY. THE SOFTWARE - * IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL - * SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES, - * AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL - * SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH - * THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH, - * PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH - * RISK ACTIVITIES"). THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY - * EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES. - * - * __END_OF_JASPER_LICENSE__ - */ - -/* - * Sun Rasterfile Library - * - * $Id$ - */ - -/******************************************************************************\ -* Includes. -\******************************************************************************/ - -#include <assert.h> -#include <stdlib.h> - -#include "jasper/jas_stream.h" -#include "jasper/jas_image.h" -#include "jasper/jas_debug.h" - -#include "ras_cod.h" - -/******************************************************************************\ -* Prototypes. -\******************************************************************************/ - -static int ras_gethdr(jas_stream_t *in, ras_hdr_t *hdr); -static int ras_getint(jas_stream_t *in, int_fast32_t *val); - -static int ras_getdata(jas_stream_t *in, ras_hdr_t *hdr, ras_cmap_t *cmap, - jas_image_t *image); -static int ras_getdatastd(jas_stream_t *in, ras_hdr_t *hdr, ras_cmap_t *cmap, - jas_image_t *image); -static int ras_getcmap(jas_stream_t *in, ras_hdr_t *hdr, ras_cmap_t *cmap); - -/******************************************************************************\ -* Code. -\******************************************************************************/ - -jas_image_t *ras_decode(jas_stream_t *in, char *optstr) -{ - ras_hdr_t hdr; - ras_cmap_t cmap; - jas_image_t *image; - jas_image_cmptparm_t cmptparms[3]; - jas_image_cmptparm_t *cmptparm; - int clrspc; - int numcmpts; - int i; - - if (optstr) { - jas_eprintf("warning: ignoring RAS decoder options\n"); - } - - /* Read the header. */ - if (ras_gethdr(in, &hdr)) { - return 0; - } - - /* Does the header information look reasonably sane? */ - if (hdr.magic != RAS_MAGIC || hdr.width <= 0 || hdr.height <= 0 || - hdr.depth <= 0 || hdr.depth > 32) { - return 0; - } - - /* In the case of the old format, do not rely on the length field - being properly specified. Calculate the quantity from scratch. */ - if (hdr.type == RAS_TYPE_OLD) { - hdr.length = RAS_ROWSIZE(&hdr) * hdr.height; - } - - /* Calculate some quantities needed for creation of the image - object. */ - if (RAS_ISRGB(&hdr)) { - clrspc = JAS_CLRSPC_SRGB; - numcmpts = 3; - } else { - clrspc = JAS_CLRSPC_SGRAY; - numcmpts = 1; - } - for (i = 0, cmptparm = cmptparms; i < numcmpts; ++i, ++cmptparm) { - cmptparm->tlx = 0; - cmptparm->tly = 0; - cmptparm->hstep = 1; - cmptparm->vstep = 1; - cmptparm->width = hdr.width; - cmptparm->height = hdr.height; - cmptparm->prec = RAS_ISRGB(&hdr) ? 8 : hdr.depth; - cmptparm->sgnd = false; - } - /* Create the image object. */ - if (!(image = jas_image_create(numcmpts, cmptparms, JAS_CLRSPC_UNKNOWN))) { - return 0; - } - - /* Read the color map (if there is one). */ - if (ras_getcmap(in, &hdr, &cmap)) { - jas_image_destroy(image); - return 0; - } - - /* Read the pixel data. */ - if (ras_getdata(in, &hdr, &cmap, image)) { - jas_image_destroy(image); - return 0; - } - - jas_image_setclrspc(image, clrspc); - if (clrspc == JAS_CLRSPC_SRGB) { - jas_image_setcmpttype(image, 0, - JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_R)); - jas_image_setcmpttype(image, 1, - JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_G)); - jas_image_setcmpttype(image, 2, - JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_B)); - } else { - jas_image_setcmpttype(image, 0, - JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_GRAY_Y)); - } - - return image; -} - -int ras_validate(jas_stream_t *in) -{ - uchar buf[RAS_MAGICLEN]; - int i; - int n; - uint_fast32_t magic; - - assert(JAS_STREAM_MAXPUTBACK >= RAS_MAGICLEN); - - /* Read the validation data (i.e., the data used for detecting - the format). */ - if ((n = jas_stream_read(in, buf, RAS_MAGICLEN)) < 0) { - return -1; - } - - /* Put the validation data back onto the stream, so that the - stream position will not be changed. */ - for (i = n - 1; i >= 0; --i) { - if (jas_stream_ungetc(in, buf[i]) == EOF) { - return -1; - } - } - - /* Did we read enough data? */ - if (n < RAS_MAGICLEN) { - return -1; - } - - magic = (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3]; - - /* Is the signature correct for the Sun Rasterfile format? */ - if (magic != RAS_MAGIC) { - return -1; - } - return 0; -} - -static int ras_getdata(jas_stream_t *in, ras_hdr_t *hdr, ras_cmap_t *cmap, - jas_image_t *image) -{ - int ret; - - switch (hdr->type) { - case RAS_TYPE_OLD: - case RAS_TYPE_STD: - ret = ras_getdatastd(in, hdr, cmap, image); - break; - case RAS_TYPE_RLE: - jas_eprintf("error: RLE encoding method not supported\n"); - ret = -1; - break; - default: - jas_eprintf("error: encoding method not supported\n"); - ret = -1; - break; - } - return ret; -} - -static int ras_getdatastd(jas_stream_t *in, ras_hdr_t *hdr, ras_cmap_t *cmap, - jas_image_t *image) -{ - int pad; - int nz; - int z; - int c; - int y; - int x; - int v; - int i; - jas_matrix_t *data[3]; - -/* Note: This function does not properly handle images with a colormap. */ - /* Avoid compiler warnings about unused parameters. */ - cmap = 0; - - for (i = 0; i < jas_image_numcmpts(image); ++i) { - data[i] = jas_matrix_create(1, jas_image_width(image)); - assert(data[i]); - } - - pad = RAS_ROWSIZE(hdr) - (hdr->width * hdr->depth + 7) / 8; - - for (y = 0; y < hdr->height; y++) { - nz = 0; - z = 0; - for (x = 0; x < hdr->width; x++) { - while (nz < hdr->depth) { - if ((c = jas_stream_getc(in)) == EOF) { - return -1; - } - z = (z << 8) | c; - nz += 8; - } - - v = (z >> (nz - hdr->depth)) & RAS_ONES(hdr->depth); - z &= RAS_ONES(nz - hdr->depth); - nz -= hdr->depth; - - if (jas_image_numcmpts(image) == 3) { - jas_matrix_setv(data[0], x, (RAS_GETRED(v))); - jas_matrix_setv(data[1], x, (RAS_GETGREEN(v))); - jas_matrix_setv(data[2], x, (RAS_GETBLUE(v))); - } else { - jas_matrix_setv(data[0], x, (v)); - } - } - if (pad) { - if ((c = jas_stream_getc(in)) == EOF) { - return -1; - } - } - for (i = 0; i < jas_image_numcmpts(image); ++i) { - if (jas_image_writecmpt(image, i, 0, y, hdr->width, 1, - data[i])) { - return -1; - } - } - } - - for (i = 0; i < jas_image_numcmpts(image); ++i) { - jas_matrix_destroy(data[i]); - } - - return 0; -} - -static int ras_getcmap(jas_stream_t *in, ras_hdr_t *hdr, ras_cmap_t *cmap) -{ - int i; - int j; - int x; - int c; - int numcolors; - int actualnumcolors; - - switch (hdr->maptype) { - case RAS_MT_NONE: - break; - case RAS_MT_EQUALRGB: - { - jas_eprintf("warning: palettized images not fully supported\n"); - numcolors = 1 << hdr->depth; - assert(numcolors <= RAS_CMAP_MAXSIZ); - actualnumcolors = hdr->maplength / 3; - for (i = 0; i < numcolors; i++) { - cmap->data[i] = 0; - } - if ((hdr->maplength % 3) || hdr->maplength < 0 || - hdr->maplength > 3 * numcolors) { - return -1; - } - for (i = 0; i < 3; i++) { - for (j = 0; j < actualnumcolors; j++) { - if ((c = jas_stream_getc(in)) == EOF) { - return -1; - } - x = 0; - switch (i) { - case 0: - x = RAS_RED(c); - break; - case 1: - x = RAS_GREEN(c); - break; - case 2: - x = RAS_BLUE(c); - break; - } - cmap->data[j] |= x; - } - } - } - break; - default: - return -1; - break; - } - - return 0; -} - -static int ras_gethdr(jas_stream_t *in, ras_hdr_t *hdr) -{ - if (ras_getint(in, &hdr->magic) || ras_getint(in, &hdr->width) || - ras_getint(in, &hdr->height) || ras_getint(in, &hdr->depth) || - ras_getint(in, &hdr->length) || ras_getint(in, &hdr->type) || - ras_getint(in, &hdr->maptype) || ras_getint(in, &hdr->maplength)) { - return -1; - } - - if (hdr->magic != RAS_MAGIC) { - return -1; - } - - return 0; -} - -static int ras_getint(jas_stream_t *in, int_fast32_t *val) -{ - int x; - int c; - int i; - - x = 0; - for (i = 0; i < 4; i++) { - if ((c = jas_stream_getc(in)) == EOF) { - return -1; - } - x = (x << 8) | (c & 0xff); - } - - *val = x; - return 0; -} |