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authorJake Petroules <jake.petroules@petroules.com>2014-01-06 08:34:32 -0500
committerThe Qt Project <gerrit-noreply@qt-project.org>2014-01-30 08:31:17 +0100
commit38c2411fa82975ba41039ea583c46aeb4b4cde61 (patch)
tree00d1ec15f219a693d2a92ae13ec8b5010b7a7528 /src/3rdparty/jasper/src/libjasper/ras/ras_dec.c
parent7c857090304c1d3cb052ca275ea40af5ea0652fb (diff)
Import a copy of JasPer 1.900.1 for use by the JPEG 2000 plugin.
Change-Id: I85348aa66f8c3c145bbfd125f557d6a247046d8f Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com> Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Diffstat (limited to 'src/3rdparty/jasper/src/libjasper/ras/ras_dec.c')
-rw-r--r--src/3rdparty/jasper/src/libjasper/ras/ras_dec.c398
1 files changed, 398 insertions, 0 deletions
diff --git a/src/3rdparty/jasper/src/libjasper/ras/ras_dec.c b/src/3rdparty/jasper/src/libjasper/ras/ras_dec.c
new file mode 100644
index 0000000..ebae2b6
--- /dev/null
+++ b/src/3rdparty/jasper/src/libjasper/ras/ras_dec.c
@@ -0,0 +1,398 @@
+/*
+ * 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;
+}