X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/7921cf2badfac0c44cd53644bfc6a483a09ec299..9806a0e71eb2190827e93cd463e9682a3b939eee:/src/xpm/parse.c diff --git a/src/xpm/parse.c b/src/xpm/parse.c index 74bb479fe9..9c5249fe27 100644 --- a/src/xpm/parse.c +++ b/src/xpm/parse.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 1989-94 GROUPE BULL + * 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 @@ -38,42 +38,14 @@ * HeDu (hedu@cul-ipn.uni-kiel.de) 4/94 */ -#include "xpm34p.h" -#ifdef VMS -#include "sys$library:ctype.h" -#else +#include "XpmI.h" #include -#endif - -#ifdef sun -#ifdef SVR4 -#define __ORIGINAL_XORG_CODE -#include /* bzero, bcopy */ -#endif -#endif - -#include -#ifdef __sgi -#include -#endif - -LFUNC(ParseValues, int, (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)); - -LFUNC(ParseColors, int, (xpmData *data, unsigned int ncolors, unsigned int cpp, - XpmColor **colorTablePtr, xpmHashTable *hashtable)); LFUNC(ParsePixels, int, (xpmData *data, unsigned int width, unsigned int height, unsigned int ncolors, unsigned int cpp, XpmColor *colorTable, xpmHashTable *hashtable, unsigned int **pixels)); -LFUNC(ParseExtensions, int, (xpmData *data, XpmExtension **extensions, - unsigned int *nextensions)); - char *xpmColorKeys[] = { "s", /* key #1: symbol */ "m", /* key #2: mono visual */ @@ -82,147 +54,28 @@ char *xpmColorKeys[] = { "c", /* key #5: color visual */ }; - -/* function call in case of error, frees only locally allocated variables */ -#undef RETURN -#define RETURN(status) \ -{ \ - 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(status); \ -} - -/* - * This function parses an Xpm file or data and store the found informations - * in an an XpmImage structure which is returned. - */ +#ifdef __OS2__ +/* Visual Age cannot deal with old, non-ansi, code */ +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 +) +#else 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 = ParseValues(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 hastable - */ - if (USE_HASHTABLE) { - ErrorStatus = xpmHashTableInit(&hashtable); - if (ErrorStatus != XpmSuccess) - return (ErrorStatus); - } - - /* - * read colors - */ - ErrorStatus = ParseColors(data, ncolors, cpp, &colorTable, &hashtable); - if (ErrorStatus != XpmSuccess) - 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 = ParseExtensions(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); -} - -static int -ParseValues(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) +xpmParseValues(data, width, height, ncolors, cpp, + x_hotspot, y_hotspot, hotspot, extensions) + xpmData *data; + unsigned int *width, *height, *ncolors, *cpp; + unsigned int *x_hotspot, *y_hotspot, *hotspot; + unsigned int *extensions; +#endif { unsigned int l; char buf[BUFSIZ]; @@ -246,7 +99,7 @@ ParseValues(xpmData *data, unsigned int *width, unsigned int *height, unsigned i *hotspot = (xpmNextUI(data, x_hotspot) && xpmNextUI(data, y_hotspot)); else { - *hotspot = (atoui(buf, l, x_hotspot) + *hotspot = (xpmatoui(buf, l, x_hotspot) && xpmNextUI(data, y_hotspot)); l = xpmNextWord(data, buf, BUFSIZ); *extensions = (l == 6 && !strncmp("XPMEXT", buf, 6)); @@ -259,6 +112,8 @@ ParseValues(xpmData *data, unsigned int *width, unsigned int *height, unsigned i */ 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); @@ -267,41 +122,81 @@ ParseValues(xpmData *data, unsigned int *width, unsigned int *height, unsigned i l = xpmNextWord(data, buf, BUFSIZ); if (!l) return (XpmFileInvalid); - ptr = strchr(buf, '_'); - if (!ptr) - return (XpmFileInvalid); - switch (l - (ptr - buf)) { - case 6: - if (!strncmp("_width", ptr, 6) && !xpmNextUI(data, width)) + buf[l] = '\0'; + ptr = buf; + got_one = False; + while (!got_one) { + ptr = index(ptr, '_'); + if (!ptr) return (XpmFileInvalid); - break; - case 7: - if (!strncmp("_height", ptr, 7) && !xpmNextUI(data, height)) - return (XpmFileInvalid); - break; - case 8: - if (!strncmp("_ncolors", ptr, 8) && !xpmNextUI(data, ncolors)) - return (XpmFileInvalid); - break; - case 16: - if (!strncmp("_chars_per_pixel", ptr, 16) - && !xpmNextUI(data, cpp)) - return (XpmFileInvalid); - break; - default: - 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); } -static int -ParseColors(xpmData *data, unsigned int ncolors, unsigned int cpp, XpmColor **colorTablePtr, xpmHashTable *hashtable) +#ifdef __OS2__ +/* Visual Age cannot deal with old, non-ansi, code */ +int xpmParseColors( + xpmData* data +, unsigned int ncolors +, unsigned int cpp +, XpmColor** colorTablePtr +, xpmHashTable* hashtable +) +#else +int +xpmParseColors(data, ncolors, cpp, colorTablePtr, hashtable) + xpmData *data; + unsigned int ncolors; + unsigned int cpp; + XpmColor **colorTablePtr; + xpmHashTable *hashtable; +#endif { unsigned int key, l, a, b; unsigned int curkey; /* current color key */ @@ -455,9 +350,31 @@ ParseColors(xpmData *data, unsigned int ncolors, unsigned int cpp, XpmColor **co return (XpmSuccess); } +#ifdef __OS2__ +/* Visual Age cannot deal with old, non-ansi, code */ static int -ParsePixels(xpmData *data, unsigned int width, unsigned int height, unsigned int ncolors, - unsigned int cpp, XpmColor *colorTable, xpmHashTable *hashtable, unsigned int **pixels) +ParsePixels( + xpmData* data +, unsigned int width +, unsigned int height +, unsigned int ncolors +, unsigned int cpp +, XpmColor* colorTable +, xpmHashTable* hashtable +, unsigned int** pixels +) +#else +static int +ParsePixels(data, width, height, ncolors, cpp, colorTable, hashtable, pixels) + xpmData *data; + unsigned int width; + unsigned int height; + unsigned int ncolors; + unsigned int cpp; + XpmColor *colorTable; + xpmHashTable *hashtable; + unsigned int **pixels; +#endif { unsigned int *iptr, *iptr2; unsigned int a, x, y; @@ -487,15 +404,15 @@ ParsePixels(xpmData *data, unsigned int width, unsigned int height, unsigned int bzero((char *)colidx, 256 * sizeof(short)); for (a = 0; a < ncolors; a++) - colidx[colorTable[a].string[0]] = a + 1; + 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 idx = colidx[xpmGetC(data)]; + int c = xpmGetC(data); - if (idx != 0) - *iptr = idx - 1; + if (c > 0 && c < 256 && colidx[c] != 0) + *iptr = colidx[c] - 1; else { XpmFree(iptr2); return (XpmFileInvalid); @@ -529,18 +446,24 @@ if (cidx[f]) XpmFree(cidx[f]);} return (XpmNoMemory); } } - cidx[char1][colorTable[a].string[1]] = a + 1; + 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); - int idx = cidx[cc1][xpmGetC(data)]; - - if (idx != 0) - *iptr = idx - 1; - else { + 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); @@ -598,8 +521,20 @@ if (cidx[f]) XpmFree(cidx[f]);} return (XpmSuccess); } -static int -ParseExtensions(xpmData *data, XpmExtension **extensions, unsigned int *nextensions) +#ifdef __OS2__ +/* Visual Age cannot deal with old, non-ansi, code */ +int xpmParseExtensions( + xpmData* data +, XpmExtension** extensions +, unsigned int* nextensions +) +#else +int +xpmParseExtensions(data, extensions, nextensions) + xpmData *data; + XpmExtension **extensions; + unsigned int *nextensions; +#endif { XpmExtension *exts = NULL, *ext; unsigned int num = 0; @@ -703,3 +638,167 @@ ParseExtensions(xpmData *data, XpmExtension **extensions, unsigned int *nextensi *extensions = exts; return (XpmSuccess); } + + +/* function call in case of error */ +#undef RETURN +#define RETURN(status) \ +{ \ + goto error; \ +} + +/* + * This function parses an Xpm file or data and store the found informations + * in an an XpmImage structure which is returned. + */ +#ifdef __OS2__ +/* Visual Age cannot deal with old, non-ansi, code */ +int xpmParseData( + xpmData* data +, XpmImage* image +, XpmInfo* info +) +#else +int +xpmParseData(data, image, info) + xpmData *data; + XpmImage *image; + XpmInfo *info; +#endif +{ + /* 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 hastable + */ + 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); +}