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-rw-r--r--libXpm/src/parse.c1608
1 files changed, 804 insertions, 804 deletions
diff --git a/libXpm/src/parse.c b/libXpm/src/parse.c
index 1d3ef5f9d..5c7915f78 100644
--- a/libXpm/src/parse.c
+++ b/libXpm/src/parse.c
@@ -1,804 +1,804 @@
-/*
- * Copyright (C) 1989-95 GROUPE BULL
- *
- * Permission is hereby granted, free of charge, to any person 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, sublicense, 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:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "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. IN NO EVENT SHALL
- * GROUPE BULL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- * Except as contained in this notice, the name of GROUPE BULL shall not be
- * used in advertising or otherwise to promote the sale, use or other dealings
- * in this Software without prior written authorization from GROUPE BULL.
- */
-
-/*****************************************************************************\
-* parse.c: *
-* *
-* XPM library *
-* Parse an XPM file or array and store the found informations *
-* in the given XpmImage structure. *
-* *
-* Developed by Arnaud Le Hors *
-\*****************************************************************************/
-
-/*
- * The code related to FOR_MSW has been added by
- * HeDu (hedu@cul-ipn.uni-kiel.de) 4/94
- */
-
-/* October 2004, source code review by Thomas Biege <thomas@suse.de> */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include "XpmI.h"
-#include <ctype.h>
-#include <string.h>
-
-#if defined(HAS_STRLCAT) || defined(HAVE_STRLCAT)
-# define STRLCAT(dst, src, dstsize) do { \
- if (strlcat(dst, src, dstsize) >= (dstsize)) \
- return (XpmFileInvalid); } while(0)
-# define STRLCPY(dst, src, dstsize) do { \
- if (strlcpy(dst, src, dstsize) >= (dstsize)) \
- return (XpmFileInvalid); } while(0)
-#else
-# define STRLCAT(dst, src, dstsize) do { \
- if ((strlen(dst) + strlen(src)) < (dstsize)) \
- strcat(dst, src); \
- else return (XpmFileInvalid); } while(0)
-# define STRLCPY(dst, src, dstsize) do { \
- if (strlen(src) < (dstsize)) \
- strcpy(dst, src); \
- else return (XpmFileInvalid); } while(0)
-#endif
-
-LFUNC(ParsePixels, int, (xpmData *data, unsigned int width,
- unsigned int height, unsigned int ncolors,
- unsigned int cpp, XpmColor *colorTable,
- xpmHashTable *hashtable, unsigned int **pixels));
-
-char *xpmColorKeys[] = {
- "s", /* key #1: symbol */
- "m", /* key #2: mono visual */
- "g4", /* key #3: 4 grays visual */
- "g", /* key #4: gray visual */
- "c", /* key #5: color visual */
-};
-
-int
-xpmParseValues(
- xpmData *data,
- unsigned int *width,
- unsigned int *height,
- unsigned int *ncolors,
- unsigned int *cpp,
- unsigned int *x_hotspot,
- unsigned int *y_hotspot,
- unsigned int *hotspot,
- unsigned int *extensions)
-{
- unsigned int l;
- char buf[BUFSIZ + 1];
-
- if (!data->format) { /* XPM 2 or 3 */
-
- /*
- * read values: width, height, ncolors, chars_per_pixel
- */
- if (!(xpmNextUI(data, width) && xpmNextUI(data, height)
- && xpmNextUI(data, ncolors) && xpmNextUI(data, cpp)))
- return (XpmFileInvalid);
-
- /*
- * read optional information (hotspot and/or XPMEXT) if any
- */
- l = xpmNextWord(data, buf, BUFSIZ);
- if (l) {
- *extensions = (l == 6 && !strncmp("XPMEXT", buf, 6));
- if (*extensions)
- *hotspot = (xpmNextUI(data, x_hotspot)
- && xpmNextUI(data, y_hotspot));
- else {
- *hotspot = (xpmatoui(buf, l, x_hotspot)
- && xpmNextUI(data, y_hotspot));
- l = xpmNextWord(data, buf, BUFSIZ);
- *extensions = (l == 6 && !strncmp("XPMEXT", buf, 6));
- }
- }
- } else {
-
- /*
- * XPM 1 file read values: width, height, ncolors, chars_per_pixel
- */
- int i;
- char *ptr;
- Bool got_one, saw_width = False, saw_height = False;
- Bool saw_ncolors = False, saw_chars_per_pixel = False;
-
- for (i = 0; i < 4; i++) {
- l = xpmNextWord(data, buf, BUFSIZ);
- if (l != 7 || strncmp("#define", buf, 7))
- return (XpmFileInvalid);
- l = xpmNextWord(data, buf, BUFSIZ);
- if (!l)
- return (XpmFileInvalid);
- buf[l] = '\0';
- ptr = buf;
- got_one = False;
- while (!got_one) {
- ptr = strchr(ptr, '_');
- if (!ptr)
- return (XpmFileInvalid);
- switch (l - (ptr - buf)) {
- case 6:
- if (saw_width || strncmp("_width", ptr, 6)
- || !xpmNextUI(data, width))
- return (XpmFileInvalid);
- else
- saw_width = True;
- got_one = True;
- break;
- case 7:
- if (saw_height || strncmp("_height", ptr, 7)
- || !xpmNextUI(data, height))
- return (XpmFileInvalid);
- else
- saw_height = True;
- got_one = True;
- break;
- case 8:
- if (saw_ncolors || strncmp("_ncolors", ptr, 8)
- || !xpmNextUI(data, ncolors))
- return (XpmFileInvalid);
- else
- saw_ncolors = True;
- got_one = True;
- break;
- case 16:
- if (saw_chars_per_pixel
- || strncmp("_chars_per_pixel", ptr, 16)
- || !xpmNextUI(data, cpp))
- return (XpmFileInvalid);
- else
- saw_chars_per_pixel = True;
- got_one = True;
- break;
- default:
- ptr++;
- }
- }
- /* skip the end of line */
- xpmNextString(data);
- }
- if (!saw_width || !saw_height || !saw_ncolors || !saw_chars_per_pixel)
- return (XpmFileInvalid);
-
- *hotspot = 0;
- *extensions = 0;
- }
- return (XpmSuccess);
-}
-
-int
-xpmParseColors(
- xpmData *data,
- unsigned int ncolors,
- unsigned int cpp,
- XpmColor **colorTablePtr,
- xpmHashTable *hashtable)
-{
- unsigned int key = 0, l, a, b, len;
- unsigned int curkey; /* current color key */
- unsigned int lastwaskey; /* key read */
- char buf[BUFSIZ+1];
- char curbuf[BUFSIZ]; /* current buffer */
- char **sptr, *s;
- XpmColor *color;
- XpmColor *colorTable;
- char **defaults;
- int ErrorStatus;
-
- if (ncolors >= UINT_MAX / sizeof(XpmColor))
- return (XpmNoMemory);
- colorTable = (XpmColor *) XpmCalloc(ncolors, sizeof(XpmColor));
- if (!colorTable)
- return (XpmNoMemory);
-
- if (!data->format) { /* XPM 2 or 3 */
- for (a = 0, color = colorTable; a < ncolors; a++, color++) {
- xpmNextString(data); /* skip the line */
-
- /*
- * read pixel value
- */
- if (cpp >= UINT_MAX - 1) {
- xpmFreeColorTable(colorTable, ncolors);
- return (XpmNoMemory);
- }
- color->string = (char *) XpmMalloc(cpp + 1);
- if (!color->string) {
- xpmFreeColorTable(colorTable, ncolors);
- return (XpmNoMemory);
- }
- for (b = 0, s = color->string; b < cpp; b++, s++)
- *s = xpmGetC(data);
- *s = '\0';
-
- /*
- * store the string in the hashtable with its color index number
- */
- if (USE_HASHTABLE) {
- ErrorStatus =
- xpmHashIntern(hashtable, color->string, HashAtomData(a));
- if (ErrorStatus != XpmSuccess) {
- xpmFreeColorTable(colorTable, ncolors);
- return (ErrorStatus);
- }
- }
-
- /*
- * read color keys and values
- */
- defaults = (char **) color;
- curkey = 0;
- lastwaskey = 0;
- *curbuf = '\0'; /* init curbuf */
- while ((l = xpmNextWord(data, buf, BUFSIZ))) {
- if (!lastwaskey) {
- for (key = 0, sptr = xpmColorKeys; key < NKEYS; key++,
- sptr++)
- if ((strlen(*sptr) == l) && (!strncmp(*sptr, buf, l)))
- break;
- }
- if (!lastwaskey && key < NKEYS) { /* open new key */
- if (curkey) { /* flush string */
- len = strlen(curbuf) + 1;
- s = (char *) XpmMalloc(len);
- if (!s) {
- xpmFreeColorTable(colorTable, ncolors);
- return (XpmNoMemory);
- }
- defaults[curkey] = s;
- memcpy(s, curbuf, len);
- }
- curkey = key + 1; /* set new key */
- *curbuf = '\0'; /* reset curbuf */
- lastwaskey = 1;
- } else {
- if (!curkey) { /* key without value */
- xpmFreeColorTable(colorTable, ncolors);
- return (XpmFileInvalid);
- }
- if (!lastwaskey)
- STRLCAT(curbuf, " ", sizeof(curbuf));/* append space */
- buf[l] = '\0';
- STRLCAT(curbuf, buf, sizeof(curbuf)); /* append buf */
- lastwaskey = 0;
- }
- }
- if (!curkey) { /* key without value */
- xpmFreeColorTable(colorTable, ncolors);
- return (XpmFileInvalid);
- }
- len = strlen(curbuf) + 1; /* integer overflow just theoretically possible */
- s = defaults[curkey] = (char *) XpmMalloc(len);
- if (!s) {
- xpmFreeColorTable(colorTable, ncolors);
- return (XpmNoMemory);
- }
- memcpy(s, curbuf, len);
- }
- } else { /* XPM 1 */
- /* get to the beginning of the first string */
- data->Bos = '"';
- data->Eos = '\0';
- xpmNextString(data);
- data->Eos = '"';
- for (a = 0, color = colorTable; a < ncolors; a++, color++) {
-
- /*
- * read pixel value
- */
- if (cpp >= UINT_MAX - 1) {
- xpmFreeColorTable(colorTable, ncolors);
- return (XpmNoMemory);
- }
- color->string = (char *) XpmMalloc(cpp + 1);
- if (!color->string) {
- xpmFreeColorTable(colorTable, ncolors);
- return (XpmNoMemory);
- }
- for (b = 0, s = color->string; b < cpp; b++, s++)
- *s = xpmGetC(data);
- *s = '\0';
-
- /*
- * store the string in the hashtable with its color index number
- */
- if (USE_HASHTABLE) {
- ErrorStatus =
- xpmHashIntern(hashtable, color->string, HashAtomData(a));
- if (ErrorStatus != XpmSuccess) {
- xpmFreeColorTable(colorTable, ncolors);
- return (ErrorStatus);
- }
- }
-
- /*
- * read color values
- */
- xpmNextString(data); /* get to the next string */
- *curbuf = '\0'; /* init curbuf */
- while ((l = xpmNextWord(data, buf, BUFSIZ))) {
- if (*curbuf != '\0')
- STRLCAT(curbuf, " ", sizeof(curbuf));/* append space */
- buf[l] = '\0';
- STRLCAT(curbuf, buf, sizeof(curbuf)); /* append buf */
- }
- len = strlen(curbuf) + 1;
- s = (char *) XpmMalloc(len);
- if (!s) {
- xpmFreeColorTable(colorTable, ncolors);
- return (XpmNoMemory);
- }
- memcpy(s, curbuf, len);
- color->c_color = s;
- *curbuf = '\0'; /* reset curbuf */
- if (a < ncolors - 1) /* can we trust ncolors -> leave data's bounds */
- xpmNextString(data); /* get to the next string */
- }
- }
- *colorTablePtr = colorTable;
- return (XpmSuccess);
-}
-
-static int
-ParsePixels(
- xpmData *data,
- unsigned int width,
- unsigned int height,
- unsigned int ncolors,
- unsigned int cpp,
- XpmColor *colorTable,
- xpmHashTable *hashtable,
- unsigned int **pixels)
-{
- unsigned int *iptr, *iptr2 = NULL; /* found by Egbert Eich */
- unsigned int a, x, y;
-
- if ((height > 0 && width >= UINT_MAX / height) ||
- width * height >= UINT_MAX / sizeof(unsigned int))
- return XpmNoMemory;
-#ifndef FOR_MSW
- iptr2 = (unsigned int *) XpmMalloc(sizeof(unsigned int) * width * height);
-#else
-
- /*
- * special treatment to trick DOS malloc(size_t) where size_t is 16 bit!!
- * XpmMalloc is defined to longMalloc(long) and checks the 16 bit boundary
- */
- iptr2 = (unsigned int *)
- XpmMalloc((long) sizeof(unsigned int) * (long) width * (long) height);
-#endif
- if (!iptr2)
- return (XpmNoMemory);
-
- iptr = iptr2;
-
- switch (cpp) {
-
- case (1): /* Optimize for single character
- * colors */
- {
- unsigned short colidx[256];
-
- if (ncolors > 256) {
- XpmFree(iptr2); /* found by Egbert Eich */
- return (XpmFileInvalid);
- }
-
- bzero((char *)colidx, 256 * sizeof(short));
- for (a = 0; a < ncolors; a++)
- colidx[(unsigned char)colorTable[a].string[0]] = a + 1;
-
- for (y = 0; y < height; y++) {
- xpmNextString(data);
- for (x = 0; x < width; x++, iptr++) {
- int c = xpmGetC(data);
-
- if (c > 0 && c < 256 && colidx[c] != 0)
- *iptr = colidx[c] - 1;
- else {
- XpmFree(iptr2);
- return (XpmFileInvalid);
- }
- }
- }
- }
- break;
-
- case (2): /* Optimize for double character
- * colors */
- {
-
-/* free all allocated pointers at all exits */
-#define FREE_CIDX \
-do \
-{ \
- int f; for (f = 0; f < 256; f++) \
- if (cidx[f]) XpmFree(cidx[f]); \
-} while(0)
-
- /* array of pointers malloced by need */
- unsigned short *cidx[256];
- unsigned int char1;
-
- bzero((char *)cidx, 256 * sizeof(unsigned short *)); /* init */
- for (a = 0; a < ncolors; a++) {
- char1 = (unsigned char) colorTable[a].string[0];
- if (cidx[char1] == NULL) { /* get new memory */
- cidx[char1] = (unsigned short *)
- XpmCalloc(256, sizeof(unsigned short));
- if (cidx[char1] == NULL) { /* new block failed */
- FREE_CIDX;
- XpmFree(iptr2);
- return (XpmNoMemory);
- }
- }
- cidx[char1][(unsigned char)colorTable[a].string[1]] = a + 1;
- }
-
- for (y = 0; y < height; y++) {
- xpmNextString(data);
- for (x = 0; x < width; x++, iptr++) {
- int cc1 = xpmGetC(data);
- if (cc1 > 0 && cc1 < 256) {
- int cc2 = xpmGetC(data);
- if (cc2 > 0 && cc2 < 256 &&
- cidx[cc1] && cidx[cc1][cc2] != 0)
- *iptr = cidx[cc1][cc2] - 1;
- else {
- FREE_CIDX;
- XpmFree(iptr2);
- return (XpmFileInvalid);
- }
- } else {
- FREE_CIDX;
- XpmFree(iptr2);
- return (XpmFileInvalid);
- }
- }
- }
- FREE_CIDX;
- }
- break;
-
- default: /* Non-optimized case of long color
- * names */
- {
- char *s;
- char buf[BUFSIZ];
-
- if (cpp >= sizeof(buf)) {
- XpmFree(iptr2); /* found by Egbert Eich */
- return (XpmFileInvalid);
- }
-
- buf[cpp] = '\0';
- if (USE_HASHTABLE) {
- xpmHashAtom *slot;
-
- for (y = 0; y < height; y++) {
- xpmNextString(data);
- for (x = 0; x < width; x++, iptr++) {
- for (a = 0, s = buf; a < cpp; a++, s++)
- *s = xpmGetC(data); /* int assigned to char, not a problem here */
- slot = xpmHashSlot(hashtable, buf);
- if (!*slot) { /* no color matches */
- XpmFree(iptr2);
- return (XpmFileInvalid);
- }
- *iptr = HashColorIndex(slot);
- }
- }
- } else {
- for (y = 0; y < height; y++) {
- xpmNextString(data);
- for (x = 0; x < width; x++, iptr++) {
- for (a = 0, s = buf; a < cpp; a++, s++)
- *s = xpmGetC(data); /* int assigned to char, not a problem here */
- for (a = 0; a < ncolors; a++)
- if (!strcmp(colorTable[a].string, buf))
- break;
- if (a == ncolors) { /* no color matches */
- XpmFree(iptr2);
- return (XpmFileInvalid);
- }
- *iptr = a;
- }
- }
- }
- }
- break;
- }
- *pixels = iptr2;
- return (XpmSuccess);
-}
-
-int
-xpmParseExtensions(
- xpmData *data,
- XpmExtension **extensions,
- unsigned int *nextensions)
-{
- XpmExtension *exts = NULL, *ext;
- unsigned int num = 0;
- unsigned int nlines, a, l, notstart, notend = 0;
- int status;
- char *string, *s, *s2, **sp;
-
- xpmNextString(data);
- exts = (XpmExtension *) XpmMalloc(sizeof(XpmExtension));
- /* get the whole string */
- status = xpmGetString(data, &string, &l);
- if (status != XpmSuccess) {
- XpmFree(exts);
- return (status);
- }
- /* look for the key word XPMEXT, skip lines before this */
- while ((notstart = strncmp("XPMEXT", string, 6))
- && (notend = strncmp("XPMENDEXT", string, 9))) {
- XpmFree(string);
- xpmNextString(data);
- status = xpmGetString(data, &string, &l);
- if (status != XpmSuccess) {
- XpmFree(exts);
- return (status);
- }
- }
- if (!notstart)
- notend = strncmp("XPMENDEXT", string, 9);
- while (!notstart && notend) {
- /* there starts an extension */
- ext = (XpmExtension *)
- XpmRealloc(exts, (num + 1) * sizeof(XpmExtension)); /* can the loop be forced to iterate often enough to make "(num + 1) * sizeof(XpmExtension)" wrapping? */
- if (!ext) {
- XpmFree(string);
- XpmFreeExtensions(exts, num);
- return (XpmNoMemory);
- }
- exts = ext;
- ext += num;
- /* skip whitespace and store its name */
- s2 = s = string + 6;
- while (isspace(*s2))
- s2++;
- a = s2 - s;
- ext->name = (char *) XpmMalloc(l - a - 6);
- if (!ext->name) {
- XpmFree(string);
- ext->lines = NULL;
- ext->nlines = 0;
- XpmFreeExtensions(exts, num + 1);
- return (XpmNoMemory);
- }
- strncpy(ext->name, s + a, l - a - 6);
- XpmFree(string);
- /* now store the related lines */
- xpmNextString(data);
- status = xpmGetString(data, &string, &l);
- if (status != XpmSuccess) {
- ext->lines = NULL;
- ext->nlines = 0;
- XpmFreeExtensions(exts, num + 1);
- return (status);
- }
- ext->lines = (char **) XpmMalloc(sizeof(char *));
- nlines = 0;
- while ((notstart = strncmp("XPMEXT", string, 6))
- && (notend = strncmp("XPMENDEXT", string, 9))) {
- sp = (char **)
- XpmRealloc(ext->lines, (nlines + 1) * sizeof(char *)); /* can we iterate enough for a wrapping? */
- if (!sp) {
- XpmFree(string);
- ext->nlines = nlines;
- XpmFreeExtensions(exts, num + 1);
- return (XpmNoMemory);
- }
- ext->lines = sp;
- ext->lines[nlines] = string;
- nlines++;
- xpmNextString(data);
- status = xpmGetString(data, &string, &l);
- if (status != XpmSuccess) {
- ext->nlines = nlines;
- XpmFreeExtensions(exts, num + 1);
- return (status);
- }
- }
- if (!nlines) {
- XpmFree(ext->lines);
- ext->lines = NULL;
- }
- ext->nlines = nlines;
- num++;
- }
- if (!num) {
- XpmFree(string);
- XpmFree(exts);
- exts = NULL;
- } else if (!notend)
- XpmFree(string);
- *nextensions = num;
- *extensions = exts;
- return (XpmSuccess);
-}
-
-
-/* function call in case of error */
-#undef RETURN
-#define RETURN(status) \
-do { \
- goto error; \
-} while(0)
-
-/*
- * This function parses an Xpm file or data and store the found informations
- * in an an XpmImage structure which is returned.
- */
-int
-xpmParseData(
- xpmData *data,
- XpmImage *image,
- XpmInfo *info)
-{
- /* variables to return */
- unsigned int width, height, ncolors, cpp;
- unsigned int x_hotspot, y_hotspot, hotspot = 0, extensions = 0;
- XpmColor *colorTable = NULL;
- unsigned int *pixelindex = NULL;
- char *hints_cmt = NULL;
- char *colors_cmt = NULL;
- char *pixels_cmt = NULL;
-
- unsigned int cmts;
- int ErrorStatus;
- xpmHashTable hashtable;
-
- cmts = info && (info->valuemask & XpmReturnComments);
-
- /*
- * parse the header
- */
- ErrorStatus = xpmParseHeader(data);
- if (ErrorStatus != XpmSuccess)
- return (ErrorStatus);
-
- /*
- * read values
- */
- ErrorStatus = xpmParseValues(data, &width, &height, &ncolors, &cpp,
- &x_hotspot, &y_hotspot, &hotspot,
- &extensions);
- if (ErrorStatus != XpmSuccess)
- return (ErrorStatus);
-
- /*
- * store the hints comment line
- */
- if (cmts)
- xpmGetCmt(data, &hints_cmt);
-
- /*
- * init the hashtable
- */
- if (USE_HASHTABLE) {
- ErrorStatus = xpmHashTableInit(&hashtable);
- if (ErrorStatus != XpmSuccess)
- RETURN(ErrorStatus);
- }
-
- /*
- * read colors
- */
- ErrorStatus = xpmParseColors(data, ncolors, cpp, &colorTable, &hashtable);
- if (ErrorStatus != XpmSuccess) {
- if (USE_HASHTABLE)
- xpmHashTableFree(&hashtable);
- RETURN(ErrorStatus);
- }
-
- /*
- * store the colors comment line
- */
- if (cmts)
- xpmGetCmt(data, &colors_cmt);
-
- /*
- * read pixels and index them on color number
- */
- ErrorStatus = ParsePixels(data, width, height, ncolors, cpp, colorTable,
- &hashtable, &pixelindex);
-
- /*
- * free the hastable
- */
- if (USE_HASHTABLE)
- xpmHashTableFree(&hashtable);
-
- if (ErrorStatus != XpmSuccess)
- RETURN(ErrorStatus);
-
- /*
- * store the pixels comment line
- */
- if (cmts)
- xpmGetCmt(data, &pixels_cmt);
-
- /*
- * parse extensions
- */
- if (info && (info->valuemask & XpmReturnExtensions)) {
- if (extensions) {
- ErrorStatus = xpmParseExtensions(data, &info->extensions,
- &info->nextensions);
- if (ErrorStatus != XpmSuccess)
- RETURN(ErrorStatus);
- } else {
- info->extensions = NULL;
- info->nextensions = 0;
- }
- }
-
- /*
- * store found informations in the XpmImage structure
- */
- image->width = width;
- image->height = height;
- image->cpp = cpp;
- image->ncolors = ncolors;
- image->colorTable = colorTable;
- image->data = pixelindex;
-
- if (info) {
- if (cmts) {
- info->hints_cmt = hints_cmt;
- info->colors_cmt = colors_cmt;
- info->pixels_cmt = pixels_cmt;
- }
- if (hotspot) {
- info->x_hotspot = x_hotspot;
- info->y_hotspot = y_hotspot;
- info->valuemask |= XpmHotspot;
- }
- }
- return (XpmSuccess);
-
-/* exit point in case of error, free only locally allocated variables */
-error:
- if (colorTable)
- xpmFreeColorTable(colorTable, ncolors);
- if (pixelindex)
- XpmFree(pixelindex);
- if (hints_cmt)
- XpmFree(hints_cmt);
- if (colors_cmt)
- XpmFree(colors_cmt);
- if (pixels_cmt)
- XpmFree(pixels_cmt);
-
- return(ErrorStatus);
-}
+/*
+ * Copyright (C) 1989-95 GROUPE BULL
+ *
+ * Permission is hereby granted, free of charge, to any person 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, sublicense, 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:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "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. IN NO EVENT SHALL
+ * GROUPE BULL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Except as contained in this notice, the name of GROUPE BULL shall not be
+ * used in advertising or otherwise to promote the sale, use or other dealings
+ * in this Software without prior written authorization from GROUPE BULL.
+ */
+
+/*****************************************************************************\
+* parse.c: *
+* *
+* XPM library *
+* Parse an XPM file or array and store the found informations *
+* in the given XpmImage structure. *
+* *
+* Developed by Arnaud Le Hors *
+\*****************************************************************************/
+
+/*
+ * The code related to FOR_MSW has been added by
+ * HeDu (hedu@cul-ipn.uni-kiel.de) 4/94
+ */
+
+/* October 2004, source code review by Thomas Biege <thomas@suse.de> */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include "XpmI.h"
+#include <ctype.h>
+#include <string.h>
+
+#if defined(HAS_STRLCAT) || defined(HAVE_STRLCAT)
+# define STRLCAT(dst, src, dstsize) do { \
+ if (strlcat(dst, src, dstsize) >= (dstsize)) \
+ return (XpmFileInvalid); } while(0)
+# define STRLCPY(dst, src, dstsize) do { \
+ if (strlcpy(dst, src, dstsize) >= (dstsize)) \
+ return (XpmFileInvalid); } while(0)
+#else
+# define STRLCAT(dst, src, dstsize) do { \
+ if ((strlen(dst) + strlen(src)) < (dstsize)) \
+ strcat(dst, src); \
+ else return (XpmFileInvalid); } while(0)
+# define STRLCPY(dst, src, dstsize) do { \
+ if (strlen(src) < (dstsize)) \
+ strcpy(dst, src); \
+ else return (XpmFileInvalid); } while(0)
+#endif
+
+LFUNC(ParsePixels, int, (xpmData *data, unsigned int width,
+ unsigned int height, unsigned int ncolors,
+ unsigned int cpp, XpmColor *colorTable,
+ xpmHashTable *hashtable, unsigned int **pixels));
+
+char *xpmColorKeys[] = {
+ "s", /* key #1: symbol */
+ "m", /* key #2: mono visual */
+ "g4", /* key #3: 4 grays visual */
+ "g", /* key #4: gray visual */
+ "c", /* key #5: color visual */
+};
+
+int
+xpmParseValues(
+ xpmData *data,
+ unsigned int *width,
+ unsigned int *height,
+ unsigned int *ncolors,
+ unsigned int *cpp,
+ unsigned int *x_hotspot,
+ unsigned int *y_hotspot,
+ unsigned int *hotspot,
+ unsigned int *extensions)
+{
+ unsigned int l;
+ char buf[BUFSIZ + 1];
+
+ if (!data->format) { /* XPM 2 or 3 */
+
+ /*
+ * read values: width, height, ncolors, chars_per_pixel
+ */
+ if (!(xpmNextUI(data, width) && xpmNextUI(data, height)
+ && xpmNextUI(data, ncolors) && xpmNextUI(data, cpp)))
+ return (XpmFileInvalid);
+
+ /*
+ * read optional information (hotspot and/or XPMEXT) if any
+ */
+ l = xpmNextWord(data, buf, BUFSIZ);
+ if (l) {
+ *extensions = (l == 6 && !strncmp("XPMEXT", buf, 6));
+ if (*extensions)
+ *hotspot = (xpmNextUI(data, x_hotspot)
+ && xpmNextUI(data, y_hotspot));
+ else {
+ *hotspot = (xpmatoui(buf, l, x_hotspot)
+ && xpmNextUI(data, y_hotspot));
+ l = xpmNextWord(data, buf, BUFSIZ);
+ *extensions = (l == 6 && !strncmp("XPMEXT", buf, 6));
+ }
+ }
+ } else {
+
+ /*
+ * XPM 1 file read values: width, height, ncolors, chars_per_pixel
+ */
+ int i;
+ char *ptr;
+ Bool got_one, saw_width = False, saw_height = False;
+ Bool saw_ncolors = False, saw_chars_per_pixel = False;
+
+ for (i = 0; i < 4; i++) {
+ l = xpmNextWord(data, buf, BUFSIZ);
+ if (l != 7 || strncmp("#define", buf, 7))
+ return (XpmFileInvalid);
+ l = xpmNextWord(data, buf, BUFSIZ);
+ if (!l)
+ return (XpmFileInvalid);
+ buf[l] = '\0';
+ ptr = buf;
+ got_one = False;
+ while (!got_one) {
+ ptr = strchr(ptr, '_');
+ if (!ptr)
+ return (XpmFileInvalid);
+ switch (l - (ptr - buf)) {
+ case 6:
+ if (saw_width || strncmp("_width", ptr, 6)
+ || !xpmNextUI(data, width))
+ return (XpmFileInvalid);
+ else
+ saw_width = True;
+ got_one = True;
+ break;
+ case 7:
+ if (saw_height || strncmp("_height", ptr, 7)
+ || !xpmNextUI(data, height))
+ return (XpmFileInvalid);
+ else
+ saw_height = True;
+ got_one = True;
+ break;
+ case 8:
+ if (saw_ncolors || strncmp("_ncolors", ptr, 8)
+ || !xpmNextUI(data, ncolors))
+ return (XpmFileInvalid);
+ else
+ saw_ncolors = True;
+ got_one = True;
+ break;
+ case 16:
+ if (saw_chars_per_pixel
+ || strncmp("_chars_per_pixel", ptr, 16)
+ || !xpmNextUI(data, cpp))
+ return (XpmFileInvalid);
+ else
+ saw_chars_per_pixel = True;
+ got_one = True;
+ break;
+ default:
+ ptr++;
+ }
+ }
+ /* skip the end of line */
+ xpmNextString(data);
+ }
+ if (!saw_width || !saw_height || !saw_ncolors || !saw_chars_per_pixel)
+ return (XpmFileInvalid);
+
+ *hotspot = 0;
+ *extensions = 0;
+ }
+ return (XpmSuccess);
+}
+
+int
+xpmParseColors(
+ xpmData *data,
+ unsigned int ncolors,
+ unsigned int cpp,
+ XpmColor **colorTablePtr,
+ xpmHashTable *hashtable)
+{
+ unsigned int key = 0, l, a, b, len;
+ unsigned int curkey; /* current color key */
+ unsigned int lastwaskey; /* key read */
+ char buf[BUFSIZ+1];
+ char curbuf[BUFSIZ]; /* current buffer */
+ char **sptr, *s;
+ XpmColor *color;
+ XpmColor *colorTable;
+ char **defaults;
+ int ErrorStatus;
+
+ if (ncolors >= UINT_MAX / sizeof(XpmColor))
+ return (XpmNoMemory);
+ colorTable = (XpmColor *) XpmCalloc(ncolors, sizeof(XpmColor));
+ if (!colorTable)
+ return (XpmNoMemory);
+
+ if (!data->format) { /* XPM 2 or 3 */
+ for (a = 0, color = colorTable; a < ncolors; a++, color++) {
+ xpmNextString(data); /* skip the line */
+
+ /*
+ * read pixel value
+ */
+ if (cpp >= UINT_MAX - 1) {
+ xpmFreeColorTable(colorTable, ncolors);
+ return (XpmNoMemory);
+ }
+ color->string = (char *) XpmMalloc(cpp + 1);
+ if (!color->string) {
+ xpmFreeColorTable(colorTable, ncolors);
+ return (XpmNoMemory);
+ }
+ for (b = 0, s = color->string; b < cpp; b++, s++)
+ *s = xpmGetC(data);
+ *s = '\0';
+
+ /*
+ * store the string in the hashtable with its color index number
+ */
+ if (USE_HASHTABLE) {
+ ErrorStatus =
+ xpmHashIntern(hashtable, color->string, HashAtomData(a));
+ if (ErrorStatus != XpmSuccess) {
+ xpmFreeColorTable(colorTable, ncolors);
+ return (ErrorStatus);
+ }
+ }
+
+ /*
+ * read color keys and values
+ */
+ defaults = (char **) color;
+ curkey = 0;
+ lastwaskey = 0;
+ *curbuf = '\0'; /* init curbuf */
+ while ((l = xpmNextWord(data, buf, BUFSIZ))) {
+ if (!lastwaskey) {
+ for (key = 0, sptr = xpmColorKeys; key < NKEYS; key++,
+ sptr++)
+ if ((strlen(*sptr) == l) && (!strncmp(*sptr, buf, l)))
+ break;
+ }
+ if (!lastwaskey && key < NKEYS) { /* open new key */
+ if (curkey) { /* flush string */
+ len = strlen(curbuf) + 1;
+ s = (char *) XpmMalloc(len);
+ if (!s) {
+ xpmFreeColorTable(colorTable, ncolors);
+ return (XpmNoMemory);
+ }
+ defaults[curkey] = s;
+ memcpy(s, curbuf, len);
+ }
+ curkey = key + 1; /* set new key */
+ *curbuf = '\0'; /* reset curbuf */
+ lastwaskey = 1;
+ } else {
+ if (!curkey) { /* key without value */
+ xpmFreeColorTable(colorTable, ncolors);
+ return (XpmFileInvalid);
+ }
+ if (!lastwaskey)
+ STRLCAT(curbuf, " ", sizeof(curbuf));/* append space */
+ buf[l] = '\0';
+ STRLCAT(curbuf, buf, sizeof(curbuf)); /* append buf */
+ lastwaskey = 0;
+ }
+ }
+ if (!curkey) { /* key without value */
+ xpmFreeColorTable(colorTable, ncolors);
+ return (XpmFileInvalid);
+ }
+ len = strlen(curbuf) + 1; /* integer overflow just theoretically possible */
+ s = defaults[curkey] = (char *) XpmMalloc(len);
+ if (!s) {
+ xpmFreeColorTable(colorTable, ncolors);
+ return (XpmNoMemory);
+ }
+ memcpy(s, curbuf, len);
+ }
+ } else { /* XPM 1 */
+ /* get to the beginning of the first string */
+ data->Bos = '"';
+ data->Eos = '\0';
+ xpmNextString(data);
+ data->Eos = '"';
+ for (a = 0, color = colorTable; a < ncolors; a++, color++) {
+
+ /*
+ * read pixel value
+ */
+ if (cpp >= UINT_MAX - 1) {
+ xpmFreeColorTable(colorTable, ncolors);
+ return (XpmNoMemory);
+ }
+ color->string = (char *) XpmMalloc(cpp + 1);
+ if (!color->string) {
+ xpmFreeColorTable(colorTable, ncolors);
+ return (XpmNoMemory);
+ }
+ for (b = 0, s = color->string; b < cpp; b++, s++)
+ *s = xpmGetC(data);
+ *s = '\0';
+
+ /*
+ * store the string in the hashtable with its color index number
+ */
+ if (USE_HASHTABLE) {
+ ErrorStatus =
+ xpmHashIntern(hashtable, color->string, HashAtomData(a));
+ if (ErrorStatus != XpmSuccess) {
+ xpmFreeColorTable(colorTable, ncolors);
+ return (ErrorStatus);
+ }
+ }
+
+ /*
+ * read color values
+ */
+ xpmNextString(data); /* get to the next string */
+ *curbuf = '\0'; /* init curbuf */
+ while ((l = xpmNextWord(data, buf, BUFSIZ))) {
+ if (*curbuf != '\0')
+ STRLCAT(curbuf, " ", sizeof(curbuf));/* append space */
+ buf[l] = '\0';
+ STRLCAT(curbuf, buf, sizeof(curbuf)); /* append buf */
+ }
+ len = strlen(curbuf) + 1;
+ s = (char *) XpmMalloc(len);
+ if (!s) {
+ xpmFreeColorTable(colorTable, ncolors);
+ return (XpmNoMemory);
+ }
+ memcpy(s, curbuf, len);
+ color->c_color = s;
+ *curbuf = '\0'; /* reset curbuf */
+ if (a < ncolors - 1) /* can we trust ncolors -> leave data's bounds */
+ xpmNextString(data); /* get to the next string */
+ }
+ }
+ *colorTablePtr = colorTable;
+ return (XpmSuccess);
+}
+
+static int
+ParsePixels(
+ xpmData *data,
+ unsigned int width,
+ unsigned int height,
+ unsigned int ncolors,
+ unsigned int cpp,
+ XpmColor *colorTable,
+ xpmHashTable *hashtable,
+ unsigned int **pixels)
+{
+ unsigned int *iptr, *iptr2 = NULL; /* found by Egbert Eich */
+ unsigned int a, x, y;
+
+ if ((height > 0 && width >= UINT_MAX / height) ||
+ width * height >= UINT_MAX / sizeof(unsigned int))
+ return XpmNoMemory;
+#ifndef FOR_MSW
+ iptr2 = (unsigned int *) XpmMalloc(sizeof(unsigned int) * width * height);
+#else
+
+ /*
+ * special treatment to trick DOS malloc(size_t) where size_t is 16 bit!!
+ * XpmMalloc is defined to longMalloc(long) and checks the 16 bit boundary
+ */
+ iptr2 = (unsigned int *)
+ XpmMalloc((long) sizeof(unsigned int) * (long) width * (long) height);
+#endif
+ if (!iptr2)
+ return (XpmNoMemory);
+
+ iptr = iptr2;
+
+ switch (cpp) {
+
+ case (1): /* Optimize for single character
+ * colors */
+ {
+ unsigned short colidx[256];
+
+ if (ncolors > 256) {
+ XpmFree(iptr2); /* found by Egbert Eich */
+ return (XpmFileInvalid);
+ }
+
+ bzero((char *)colidx, 256 * sizeof(short));
+ for (a = 0; a < ncolors; a++)
+ colidx[(unsigned char)colorTable[a].string[0]] = a + 1;
+
+ for (y = 0; y < height; y++) {
+ xpmNextString(data);
+ for (x = 0; x < width; x++, iptr++) {
+ int c = xpmGetC(data);
+
+ if (c > 0 && c < 256 && colidx[c] != 0)
+ *iptr = colidx[c] - 1;
+ else {
+ XpmFree(iptr2);
+ return (XpmFileInvalid);
+ }
+ }
+ }
+ }
+ break;
+
+ case (2): /* Optimize for double character
+ * colors */
+ {
+
+/* free all allocated pointers at all exits */
+#define FREE_CIDX \
+do \
+{ \
+ int f; for (f = 0; f < 256; f++) \
+ if (cidx[f]) XpmFree(cidx[f]); \
+} while(0)
+
+ /* array of pointers malloced by need */
+ unsigned short *cidx[256];
+ unsigned int char1;
+
+ bzero((char *)cidx, 256 * sizeof(unsigned short *)); /* init */
+ for (a = 0; a < ncolors; a++) {
+ char1 = (unsigned char) colorTable[a].string[0];
+ if (cidx[char1] == NULL) { /* get new memory */
+ cidx[char1] = (unsigned short *)
+ XpmCalloc(256, sizeof(unsigned short));
+ if (cidx[char1] == NULL) { /* new block failed */
+ FREE_CIDX;
+ XpmFree(iptr2);
+ return (XpmNoMemory);
+ }
+ }
+ cidx[char1][(unsigned char)colorTable[a].string[1]] = a + 1;
+ }
+
+ for (y = 0; y < height; y++) {
+ xpmNextString(data);
+ for (x = 0; x < width; x++, iptr++) {
+ int cc1 = xpmGetC(data);
+ if (cc1 > 0 && cc1 < 256) {
+ int cc2 = xpmGetC(data);
+ if (cc2 > 0 && cc2 < 256 &&
+ cidx[cc1] && cidx[cc1][cc2] != 0)
+ *iptr = cidx[cc1][cc2] - 1;
+ else {
+ FREE_CIDX;
+ XpmFree(iptr2);
+ return (XpmFileInvalid);
+ }
+ } else {
+ FREE_CIDX;
+ XpmFree(iptr2);
+ return (XpmFileInvalid);
+ }
+ }
+ }
+ FREE_CIDX;
+ }
+ break;
+
+ default: /* Non-optimized case of long color
+ * names */
+ {
+ char *s;
+ char buf[BUFSIZ];
+
+ if (cpp >= sizeof(buf)) {
+ XpmFree(iptr2); /* found by Egbert Eich */
+ return (XpmFileInvalid);
+ }
+
+ buf[cpp] = '\0';
+ if (USE_HASHTABLE) {
+ xpmHashAtom *slot;
+
+ for (y = 0; y < height; y++) {
+ xpmNextString(data);
+ for (x = 0; x < width; x++, iptr++) {
+ for (a = 0, s = buf; a < cpp; a++, s++)
+ *s = xpmGetC(data); /* int assigned to char, not a problem here */
+ slot = xpmHashSlot(hashtable, buf);
+ if (!*slot) { /* no color matches */
+ XpmFree(iptr2);
+ return (XpmFileInvalid);
+ }
+ *iptr = HashColorIndex(slot);
+ }
+ }
+ } else {
+ for (y = 0; y < height; y++) {
+ xpmNextString(data);
+ for (x = 0; x < width; x++, iptr++) {
+ for (a = 0, s = buf; a < cpp; a++, s++)
+ *s = xpmGetC(data); /* int assigned to char, not a problem here */
+ for (a = 0; a < ncolors; a++)
+ if (!strcmp(colorTable[a].string, buf))
+ break;
+ if (a == ncolors) { /* no color matches */
+ XpmFree(iptr2);
+ return (XpmFileInvalid);
+ }
+ *iptr = a;
+ }
+ }
+ }
+ }
+ break;
+ }
+ *pixels = iptr2;
+ return (XpmSuccess);
+}
+
+int
+xpmParseExtensions(
+ xpmData *data,
+ XpmExtension **extensions,
+ unsigned int *nextensions)
+{
+ XpmExtension *exts = NULL, *ext;
+ unsigned int num = 0;
+ unsigned int nlines, a, l, notstart, notend = 0;
+ int status;
+ char *string, *s, *s2, **sp;
+
+ xpmNextString(data);
+ exts = (XpmExtension *) XpmMalloc(sizeof(XpmExtension));
+ /* get the whole string */
+ status = xpmGetString(data, &string, &l);
+ if (status != XpmSuccess) {
+ XpmFree(exts);
+ return (status);
+ }
+ /* look for the key word XPMEXT, skip lines before this */
+ while ((notstart = strncmp("XPMEXT", string, 6))
+ && (notend = strncmp("XPMENDEXT", string, 9))) {
+ XpmFree(string);
+ xpmNextString(data);
+ status = xpmGetString(data, &string, &l);
+ if (status != XpmSuccess) {
+ XpmFree(exts);
+ return (status);
+ }
+ }
+ if (!notstart)
+ notend = strncmp("XPMENDEXT", string, 9);
+ while (!notstart && notend) {
+ /* there starts an extension */
+ ext = (XpmExtension *)
+ XpmRealloc(exts, (num + 1) * sizeof(XpmExtension)); /* can the loop be forced to iterate often enough to make "(num + 1) * sizeof(XpmExtension)" wrapping? */
+ if (!ext) {
+ XpmFree(string);
+ XpmFreeExtensions(exts, num);
+ return (XpmNoMemory);
+ }
+ exts = ext;
+ ext += num;
+ /* skip whitespace and store its name */
+ s2 = s = string + 6;
+ while (isspace(*s2))
+ s2++;
+ a = s2 - s;
+ ext->name = (char *) XpmMalloc(l - a - 6);
+ if (!ext->name) {
+ XpmFree(string);
+ ext->lines = NULL;
+ ext->nlines = 0;
+ XpmFreeExtensions(exts, num + 1);
+ return (XpmNoMemory);
+ }
+ strncpy(ext->name, s + a, l - a - 6);
+ XpmFree(string);
+ /* now store the related lines */
+ xpmNextString(data);
+ status = xpmGetString(data, &string, &l);
+ if (status != XpmSuccess) {
+ ext->lines = NULL;
+ ext->nlines = 0;
+ XpmFreeExtensions(exts, num + 1);
+ return (status);
+ }
+ ext->lines = (char **) XpmMalloc(sizeof(char *));
+ nlines = 0;
+ while ((notstart = strncmp("XPMEXT", string, 6))
+ && (notend = strncmp("XPMENDEXT", string, 9))) {
+ sp = (char **)
+ XpmRealloc(ext->lines, (nlines + 1) * sizeof(char *)); /* can we iterate enough for a wrapping? */
+ if (!sp) {
+ XpmFree(string);
+ ext->nlines = nlines;
+ XpmFreeExtensions(exts, num + 1);
+ return (XpmNoMemory);
+ }
+ ext->lines = sp;
+ ext->lines[nlines] = string;
+ nlines++;
+ xpmNextString(data);
+ status = xpmGetString(data, &string, &l);
+ if (status != XpmSuccess) {
+ ext->nlines = nlines;
+ XpmFreeExtensions(exts, num + 1);
+ return (status);
+ }
+ }
+ if (!nlines) {
+ XpmFree(ext->lines);
+ ext->lines = NULL;
+ }
+ ext->nlines = nlines;
+ num++;
+ }
+ if (!num) {
+ XpmFree(string);
+ XpmFree(exts);
+ exts = NULL;
+ } else if (!notend)
+ XpmFree(string);
+ *nextensions = num;
+ *extensions = exts;
+ return (XpmSuccess);
+}
+
+
+/* function call in case of error */
+#undef RETURN
+#define RETURN(status) \
+do { \
+ goto error; \
+} while(0)
+
+/*
+ * This function parses an Xpm file or data and store the found informations
+ * in an an XpmImage structure which is returned.
+ */
+int
+xpmParseData(
+ xpmData *data,
+ XpmImage *image,
+ XpmInfo *info)
+{
+ /* variables to return */
+ unsigned int width, height, ncolors, cpp;
+ unsigned int x_hotspot, y_hotspot, hotspot = 0, extensions = 0;
+ XpmColor *colorTable = NULL;
+ unsigned int *pixelindex = NULL;
+ char *hints_cmt = NULL;
+ char *colors_cmt = NULL;
+ char *pixels_cmt = NULL;
+
+ unsigned int cmts;
+ int ErrorStatus;
+ xpmHashTable hashtable;
+
+ cmts = info && (info->valuemask & XpmReturnComments);
+
+ /*
+ * parse the header
+ */
+ ErrorStatus = xpmParseHeader(data);
+ if (ErrorStatus != XpmSuccess)
+ return (ErrorStatus);
+
+ /*
+ * read values
+ */
+ ErrorStatus = xpmParseValues(data, &width, &height, &ncolors, &cpp,
+ &x_hotspot, &y_hotspot, &hotspot,
+ &extensions);
+ if (ErrorStatus != XpmSuccess)
+ return (ErrorStatus);
+
+ /*
+ * store the hints comment line
+ */
+ if (cmts)
+ xpmGetCmt(data, &hints_cmt);
+
+ /*
+ * init the hashtable
+ */
+ if (USE_HASHTABLE) {
+ ErrorStatus = xpmHashTableInit(&hashtable);
+ if (ErrorStatus != XpmSuccess)
+ RETURN(ErrorStatus);
+ }
+
+ /*
+ * read colors
+ */
+ ErrorStatus = xpmParseColors(data, ncolors, cpp, &colorTable, &hashtable);
+ if (ErrorStatus != XpmSuccess) {
+ if (USE_HASHTABLE)
+ xpmHashTableFree(&hashtable);
+ RETURN(ErrorStatus);
+ }
+
+ /*
+ * store the colors comment line
+ */
+ if (cmts)
+ xpmGetCmt(data, &colors_cmt);
+
+ /*
+ * read pixels and index them on color number
+ */
+ ErrorStatus = ParsePixels(data, width, height, ncolors, cpp, colorTable,
+ &hashtable, &pixelindex);
+
+ /*
+ * free the hastable
+ */
+ if (USE_HASHTABLE)
+ xpmHashTableFree(&hashtable);
+
+ if (ErrorStatus != XpmSuccess)
+ RETURN(ErrorStatus);
+
+ /*
+ * store the pixels comment line
+ */
+ if (cmts)
+ xpmGetCmt(data, &pixels_cmt);
+
+ /*
+ * parse extensions
+ */
+ if (info && (info->valuemask & XpmReturnExtensions)) {
+ if (extensions) {
+ ErrorStatus = xpmParseExtensions(data, &info->extensions,
+ &info->nextensions);
+ if (ErrorStatus != XpmSuccess)
+ RETURN(ErrorStatus);
+ } else {
+ info->extensions = NULL;
+ info->nextensions = 0;
+ }
+ }
+
+ /*
+ * store found informations in the XpmImage structure
+ */
+ image->width = width;
+ image->height = height;
+ image->cpp = cpp;
+ image->ncolors = ncolors;
+ image->colorTable = colorTable;
+ image->data = pixelindex;
+
+ if (info) {
+ if (cmts) {
+ info->hints_cmt = hints_cmt;
+ info->colors_cmt = colors_cmt;
+ info->pixels_cmt = pixels_cmt;
+ }
+ if (hotspot) {
+ info->x_hotspot = x_hotspot;
+ info->y_hotspot = y_hotspot;
+ info->valuemask |= XpmHotspot;
+ }
+ }
+ return (XpmSuccess);
+
+/* exit point in case of error, free only locally allocated variables */
+error:
+ if (colorTable)
+ xpmFreeColorTable(colorTable, ncolors);
+ if (pixelindex)
+ XpmFree(pixelindex);
+ if (hints_cmt)
+ XpmFree(hints_cmt);
+ if (colors_cmt)
+ XpmFree(colors_cmt);
+ if (pixels_cmt)
+ XpmFree(pixels_cmt);
+
+ return(ErrorStatus);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-30 16:12:40 +0000