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authormarha <marha@users.sourceforge.net>2009-11-06 06:21:24 +0000
committermarha <marha@users.sourceforge.net>2009-11-06 06:21:24 +0000
commit0ae41e8705d1a90e05e5452759396d6ef3e9d33f (patch)
tree0633e2a8cdad0b13af31d9ff471174fe3f69e637 /libXpm/src/RdFToI.c
parenta606d151fb424f09f5b548ed58879dc20ba4f173 (diff)
parentc9179017c7e70703b7cac46c2df8b950506319e0 (diff)
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Added libXpm
Diffstat (limited to 'libXpm/src/RdFToI.c')
-rw-r--r--libXpm/src/RdFToI.c275
1 files changed, 275 insertions, 0 deletions
diff --git a/libXpm/src/RdFToI.c b/libXpm/src/RdFToI.c
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+++ b/libXpm/src/RdFToI.c
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+/*
+ * 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.
+ */
+
+/*****************************************************************************\
+* RdFToI.c: *
+* *
+* XPM library *
+* Parse an XPM file and create the image and possibly its mask *
+* *
+* Developed by Arnaud Le Hors *
+\*****************************************************************************/
+/* $XFree86$ */
+
+/* October 2004, source code review by Thomas Biege <thomas@suse.de> */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include "XpmI.h"
+#ifndef NO_ZPIPE
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+typedef int pid_t;
+#else
+#ifdef FOR_MSW
+#include <fcntl.h>
+#endif
+#endif
+
+LFUNC(OpenReadFile, int, (char *filename, xpmData *mdata));
+LFUNC(xpmDataClose, void, (xpmData *mdata));
+
+FUNC(xpmPipeThrough, FILE*, (int fd,
+ const char *cmd,
+ const char *arg1,
+ const char *mode));
+
+#ifndef CXPMPROG
+int
+XpmReadFileToImage(
+ Display *display,
+ char *filename,
+ XImage **image_return,
+ XImage **shapeimage_return,
+ XpmAttributes *attributes)
+{
+ XpmImage image;
+ XpmInfo info;
+ int ErrorStatus;
+ xpmData mdata;
+
+ xpmInitXpmImage(&image);
+ xpmInitXpmInfo(&info);
+
+ /* open file to read */
+ if ((ErrorStatus = OpenReadFile(filename, &mdata)) != XpmSuccess)
+ return (ErrorStatus);
+
+ /* create the XImage from the XpmData */
+ if (attributes) {
+ xpmInitAttributes(attributes);
+ xpmSetInfoMask(&info, attributes);
+ ErrorStatus = xpmParseDataAndCreate(display, &mdata,
+ image_return, shapeimage_return,
+ &image, &info, attributes);
+ } else
+ ErrorStatus = xpmParseDataAndCreate(display, &mdata,
+ image_return, shapeimage_return,
+ &image, NULL, attributes);
+ if (attributes) {
+ if (ErrorStatus >= 0) /* no fatal error */
+ xpmSetAttributes(attributes, &image, &info);
+ XpmFreeXpmInfo(&info);
+ }
+
+ xpmDataClose(&mdata);
+ /* free the XpmImage */
+ XpmFreeXpmImage(&image);
+
+ return (ErrorStatus);
+}
+
+int
+XpmReadFileToXpmImage(
+ char *filename,
+ XpmImage *image,
+ XpmInfo *info)
+{
+ xpmData mdata;
+ int ErrorStatus;
+
+ /* init returned values */
+ xpmInitXpmImage(image);
+ xpmInitXpmInfo(info);
+
+ /* open file to read */
+ if ((ErrorStatus = OpenReadFile(filename, &mdata)) != XpmSuccess)
+ return (ErrorStatus);
+
+ /* create the XpmImage from the XpmData */
+ ErrorStatus = xpmParseData(&mdata, image, info);
+
+ xpmDataClose(&mdata);
+
+ return (ErrorStatus);
+}
+#endif /* CXPMPROG */
+
+#ifndef NO_ZPIPE
+/* Do not depend on errno after read_through */
+FILE*
+xpmPipeThrough(
+ int fd,
+ const char *cmd,
+ const char *arg1,
+ const char *mode)
+{
+ FILE* fp;
+ int status, fds[2], in = 0, out = 1;
+ pid_t pid;
+ if ( 'w' == *mode )
+ out = 0, in = 1;
+ if ( pipe(fds) < 0 )
+ return NULL;
+ pid = fork();
+ if ( pid < 0 )
+ goto fail1;
+ if ( 0 == pid )
+ {
+ close(fds[in]);
+ if ( dup2(fds[out], out) < 0 )
+ goto err;
+ close(fds[out]);
+ if ( dup2(fd, in) < 0 )
+ goto err;
+ close(fd);
+ pid = fork();
+ if ( pid < 0 )
+ goto err;
+ if ( 0 == pid )
+ {
+ execlp(cmd, cmd, arg1, (char *)NULL);
+ perror(cmd);
+ goto err;
+ }
+ _exit(0);
+ err:
+ _exit(1);
+ }
+ close(fds[out]);
+ /* calling process: wait for first child */
+ while ( waitpid(pid, &status, 0) < 0 && EINTR == errno )
+ ;
+ if ( WIFSIGNALED(status) ||
+ (WIFEXITED(status) && WEXITSTATUS(status) != 0) )
+ goto fail2;
+ fp = fdopen(fds[in], mode);
+ if ( !fp )
+ goto fail2;
+ close(fd); /* still open in 2nd child */
+ return fp;
+fail1:
+ close(fds[out]);
+fail2:
+ close(fds[in]);
+ return NULL;
+}
+#endif
+
+/*
+ * open the given file to be read as an xpmData which is returned.
+ */
+static int
+OpenReadFile(
+ char *filename,
+ xpmData *mdata)
+{
+ if (!filename) {
+ mdata->stream.file = (stdin);
+ mdata->type = XPMFILE;
+ } else {
+ int fd = open(filename, O_RDONLY);
+#if defined(NO_ZPIPE)
+ if ( fd < 0 )
+ return XpmOpenFailed;
+#else
+ const char* ext = NULL;
+ if ( fd >= 0 )
+ ext = strrchr(filename, '.');
+#ifdef STAT_ZFILE /* searching for z-files if the given name not found */
+ else
+ {
+ size_t len = strlen(filename);
+ char *compressfile = (char *) XpmMalloc(len + 4);
+ if ( !compressfile )
+ return (XpmNoMemory);
+ strcpy(compressfile, filename);
+ strcpy(compressfile + len, ext = ".Z");
+ fd = open(compressfile, O_RDONLY);
+ if ( fd < 0 )
+ {
+ strcpy(compressfile + len, ext = ".gz");
+ fd = open(compressfile, O_RDONLY);
+ if ( fd < 0 )
+ {
+ XpmFree(compressfile);
+ return XpmOpenFailed;
+ }
+ }
+ XpmFree(compressfile);
+ }
+#endif
+ if ( ext && !strcmp(ext, ".Z") )
+ {
+ mdata->type = XPMPIPE;
+ mdata->stream.file = xpmPipeThrough(fd, "uncompress", "-c", "r");
+ }
+ else if ( ext && !strcmp(ext, ".gz") )
+ {
+ mdata->type = XPMPIPE;
+ mdata->stream.file = xpmPipeThrough(fd, "gunzip", "-qc", "r");
+ }
+ else
+#endif /* z-files */
+ {
+ mdata->type = XPMFILE;
+ mdata->stream.file = fdopen(fd, "r");
+ }
+ if (!mdata->stream.file)
+ {
+ close(fd);
+ return (XpmOpenFailed);
+ }
+ }
+ mdata->CommentLength = 0;
+#ifdef CXPMPROG
+ mdata->lineNum = 0;
+ mdata->charNum = 0;
+#endif
+ return (XpmSuccess);
+}
+
+/*
+ * close the file related to the xpmData if any
+ */
+static void
+xpmDataClose(xpmData *mdata)
+{
+ if (mdata->stream.file != (stdin))
+ fclose(mdata->stream.file);
+}