Added libXpm

1 files changed, 308 insertions, 0 deletions

diff --git a/libXpm/src/Attrib.c b/libXpm/src/Attrib.c
new file mode 100644
index 000000000..cb304df1f
--- /dev/null
+++ b/libXpm/src/Attrib.c
@@ -0,0 +1,308 @@
+/*
+ * 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.
+ */
+
+/*****************************************************************************\
+* Attrib.c:                                                                   *
+*                                                                             *
+*  XPM library                                                                *
+*  Functions related to the XpmAttributes structure                           *
+*                                                                             *
+*  Developed by Arnaud Le Hors                                                *
+\*****************************************************************************/
+
+/* October 2004, source code review by Thomas Biege <thomas@suse.de> */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include "XpmI.h"
+
+/* 3.2 backward compatibility code */
+LFUNC(CreateOldColorTable, int, (XpmColor *ct, unsigned int ncolors,
+				 XpmColor ***oldct));
+
+LFUNC(FreeOldColorTable, void, (XpmColor **colorTable, unsigned int ncolors));
+
+/*
+ * Create a colortable compatible with the old style colortable
+ */
+static int
+CreateOldColorTable(
+    XpmColor	  *ct,
+    unsigned int   ncolors,
+    XpmColor	***oldct)
+{
+    XpmColor **colorTable, **color;
+    unsigned int a;
+
+    if (ncolors >= UINT_MAX / sizeof(XpmColor *)) 
+	return XpmNoMemory;
+
+    colorTable = (XpmColor **) XpmMalloc(ncolors * sizeof(XpmColor *));
+    if (!colorTable) {
+	*oldct = NULL;
+	return (XpmNoMemory);
+    }
+    for (a = 0, color = colorTable; a < ncolors; a++, color++, ct++)
+	*color = ct;
+    *oldct = colorTable;
+    return (XpmSuccess);
+}
+
+static void
+FreeOldColorTable(
+    XpmColor	**colorTable,
+    unsigned int  ncolors)
+{
+    unsigned int a, b;
+    XpmColor **color;
+    char **sptr;
+
+    if (colorTable) {
+	for (a = 0, color = colorTable; a < ncolors; a++, color++) {
+	    for (b = 0, sptr = (char **) *color; b <= NKEYS; b++, sptr++)
+		if (*sptr)
+		    XpmFree(*sptr);
+	}
+	XpmFree(*colorTable);
+	XpmFree(colorTable);
+    }
+}
+
+/* end 3.2 bc */
+
+/*
+ * Free the computed color table
+ */
+void
+xpmFreeColorTable(
+    XpmColor	*colorTable,
+    int		 ncolors)
+{
+    int a, b;
+    XpmColor *color;
+    char **sptr;
+
+    if (colorTable) {
+	for (a = 0, color = colorTable; a < ncolors; a++, color++) {
+	    for (b = 0, sptr = (char **) color; b <= NKEYS; b++, sptr++)
+		if (*sptr)
+		    XpmFree(*sptr);
+	}
+	XpmFree(colorTable);
+    }
+}
+
+/*
+ * Free array of extensions
+ */
+void
+XpmFreeExtensions(
+    XpmExtension	*extensions,
+    int			 nextensions)
+{
+    unsigned int i, j, nlines;
+    XpmExtension *ext;
+    char **sptr;
+
+    if (extensions  && nextensions > 0) {
+	for (i = 0, ext = extensions; i < nextensions; i++, ext++) {
+	    if (ext->name)
+		XpmFree(ext->name);
+	    nlines = ext->nlines;
+	    for (j = 0, sptr = ext->lines; j < nlines; j++, sptr++)
+		if (sptr && *sptr)
+		    XpmFree(*sptr);
+	    if (ext->lines)
+		XpmFree(ext->lines);
+	}
+	XpmFree(extensions);
+    }
+}
+
+/*
+ * Return the XpmAttributes structure size
+ */
+
+int
+XpmAttributesSize(void)
+{
+    return sizeof(XpmAttributes);
+}
+
+/*
+ * Init returned data to free safely later on
+ */
+void
+xpmInitAttributes(XpmAttributes *attributes)
+{
+    if (attributes) {
+	attributes->pixels = NULL;
+	attributes->npixels = 0;
+	attributes->colorTable = NULL;
+	attributes->ncolors = 0;
+/* 3.2 backward compatibility code */
+	attributes->hints_cmt = NULL;
+	attributes->colors_cmt = NULL;
+	attributes->pixels_cmt = NULL;
+/* end 3.2 bc */
+	if (attributes->valuemask & XpmReturnExtensions) {
+	    attributes->extensions = NULL;
+	    attributes->nextensions = 0;
+	}
+	if (attributes->valuemask & XpmReturnAllocPixels) {
+	    attributes->alloc_pixels = NULL;
+	    attributes->nalloc_pixels = 0;
+	}
+    }
+}
+
+/*
+ * Fill in the XpmAttributes with the XpmImage and the XpmInfo
+ */
+void
+xpmSetAttributes(
+    XpmAttributes	*attributes,
+    XpmImage		*image,
+    XpmInfo		*info)
+{
+    if (attributes->valuemask & XpmReturnColorTable) {
+	attributes->colorTable = image->colorTable;
+	attributes->ncolors = image->ncolors;
+
+	/* avoid deletion of copied data */
+	image->ncolors = 0;
+	image->colorTable = NULL;
+    }
+/* 3.2 backward compatibility code */
+    else if (attributes->valuemask & XpmReturnInfos) {
+	int ErrorStatus;
+
+	ErrorStatus = CreateOldColorTable(image->colorTable, image->ncolors,
+					  (XpmColor ***)
+					  &attributes->colorTable);
+
+	/* if error just say we can't return requested data */
+	if (ErrorStatus != XpmSuccess) {
+	    attributes->valuemask &= ~XpmReturnInfos;
+	    if (!(attributes->valuemask & XpmReturnPixels)) {
+		XpmFree(attributes->pixels);
+		attributes->pixels = NULL;
+		attributes->npixels = 0;
+	    }
+	    attributes->ncolors = 0;
+	} else {
+	    attributes->ncolors = image->ncolors;
+	    attributes->hints_cmt = info->hints_cmt;
+	    attributes->colors_cmt = info->colors_cmt;
+	    attributes->pixels_cmt = info->pixels_cmt;
+
+	    /* avoid deletion of copied data */
+	    image->ncolors = 0;
+	    image->colorTable = NULL;
+	    info->hints_cmt = NULL;
+	    info->colors_cmt = NULL;
+	    info->pixels_cmt = NULL;
+	}
+    }
+/* end 3.2 bc */
+    if (attributes->valuemask & XpmReturnExtensions) {
+	attributes->extensions = info->extensions;
+	attributes->nextensions = info->nextensions;
+
+	/* avoid deletion of copied data */
+	info->extensions = NULL;
+	info->nextensions = 0;
+    }
+    if (info->valuemask & XpmHotspot) {
+	attributes->valuemask |= XpmHotspot;
+	attributes->x_hotspot = info->x_hotspot;
+	attributes->y_hotspot = info->y_hotspot;
+    }
+    attributes->valuemask |= XpmCharsPerPixel;
+    attributes->cpp = image->cpp;
+    attributes->valuemask |= XpmSize;
+    attributes->width = image->width;
+    attributes->height = image->height;
+}
+
+/*
+ * Free the XpmAttributes structure members
+ * but the structure itself
+ */
+void
+XpmFreeAttributes(XpmAttributes *attributes)
+{
+    if (attributes->valuemask & XpmReturnPixels && attributes->npixels) {
+	XpmFree(attributes->pixels);
+	attributes->pixels = NULL;
+	attributes->npixels = 0;
+    }
+    if (attributes->valuemask & XpmReturnColorTable) {
+	xpmFreeColorTable(attributes->colorTable, attributes->ncolors);
+	attributes->colorTable = NULL;
+	attributes->ncolors = 0;
+    }
+/* 3.2 backward compatibility code */
+    else if (attributes->valuemask & XpmInfos) {
+	if (attributes->colorTable) {
+	    FreeOldColorTable((XpmColor **) attributes->colorTable,
+			      attributes->ncolors);
+	    attributes->colorTable = NULL;
+	    attributes->ncolors = 0;
+	}
+	if (attributes->hints_cmt) {
+	    XpmFree(attributes->hints_cmt);
+	    attributes->hints_cmt = NULL;
+	}
+	if (attributes->colors_cmt) {
+	    XpmFree(attributes->colors_cmt);
+	    attributes->colors_cmt = NULL;
+	}
+	if (attributes->pixels_cmt) {
+	    XpmFree(attributes->pixels_cmt);
+	    attributes->pixels_cmt = NULL;
+	}
+	if (attributes->pixels) {
+	    XpmFree(attributes->pixels);
+	    attributes->pixels = NULL;
+	    attributes->npixels = 0;
+	}
+    }
+/* end 3.2 bc */
+    if (attributes->valuemask & XpmReturnExtensions
+	&& attributes->nextensions) {
+	XpmFreeExtensions(attributes->extensions, attributes->nextensions);
+	attributes->extensions = NULL;
+	attributes->nextensions = 0;
+    }
+    if (attributes->valuemask & XpmReturnAllocPixels
+	&& attributes->nalloc_pixels) {
+	XpmFree(attributes->alloc_pixels);
+	attributes->alloc_pixels = NULL;
+	attributes->nalloc_pixels = 0;
+    }
+    attributes->valuemask = 0;
+}