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Diffstat (limited to 'src/CrBufFrI.c')
| -rw-r--r-- | src/CrBufFrI.c | 401 |
1 files changed, 401 insertions, 0 deletions
diff --git a/src/CrBufFrI.c b/src/CrBufFrI.c new file mode 100644 index 0000000..da6735f --- /dev/null +++ b/src/CrBufFrI.c @@ -0,0 +1,401 @@ +/* + * 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. + */ + +/*****************************************************************************\ +* CrBufFrI.c: * +* * +* XPM library * +* Scan an image and possibly its mask and create an XPM buffer * +* * +* Developed by Arnaud Le Hors * +\*****************************************************************************/ +/* $XFree86: xc/extras/Xpm/lib/CrBufFrI.c,v 1.2 2001/10/28 03:32:09 tsi Exp $ */ + +#include "XpmI.h" + +LFUNC(WriteColors, int, (char **dataptr, unsigned int *data_size, + unsigned int *used_size, XpmColor *colors, + unsigned int ncolors, unsigned int cpp)); + +LFUNC(WritePixels, void, (char *dataptr, unsigned int *used_size, + unsigned int width, unsigned int height, + unsigned int cpp, unsigned int *pixels, + XpmColor *colors)); + +LFUNC(WriteExtensions, void, (char *dataptr, unsigned int *used_size, + XpmExtension *ext, unsigned int num)); + +LFUNC(ExtensionsSize, int, (XpmExtension *ext, unsigned int num)); +LFUNC(CommentsSize, int, (XpmInfo *info)); + +int +XpmCreateBufferFromImage(display, buffer_return, image, shapeimage, attributes) + Display *display; + char **buffer_return; + XImage *image; + XImage *shapeimage; + XpmAttributes *attributes; +{ + XpmImage xpmimage; + XpmInfo info; + int ErrorStatus; + + /* initialize return value */ + if (buffer_return) + *buffer_return = NULL; + + /* create an XpmImage from the image */ + ErrorStatus = XpmCreateXpmImageFromImage(display, image, shapeimage, + &xpmimage, attributes); + if (ErrorStatus != XpmSuccess) + return (ErrorStatus); + + /* create the buffer from the XpmImage */ + if (attributes) { + xpmSetInfo(&info, attributes); + ErrorStatus = + XpmCreateBufferFromXpmImage(buffer_return, &xpmimage, &info); + } else + ErrorStatus = + XpmCreateBufferFromXpmImage(buffer_return, &xpmimage, NULL); + + /* free the XpmImage */ + XpmFreeXpmImage(&xpmimage); + + return (ErrorStatus); +} + + +#undef RETURN +#define RETURN(status) \ +{ \ + ErrorStatus = status; \ + goto error; \ +} + +int +XpmCreateBufferFromXpmImage(buffer_return, image, info) + char **buffer_return; + XpmImage *image; + XpmInfo *info; +{ + /* calculation variables */ + int ErrorStatus; + char buf[BUFSIZ]; + unsigned int cmts, extensions, ext_size = 0; + unsigned int l, cmt_size = 0; + char *ptr = NULL, *p; + unsigned int ptr_size, used_size; + + *buffer_return = NULL; + + cmts = info && (info->valuemask & XpmComments); + extensions = info && (info->valuemask & XpmExtensions) + && info->nextensions; + + /* compute the extensions and comments size */ + if (extensions) + ext_size = ExtensionsSize(info->extensions, info->nextensions); + if (cmts) + cmt_size = CommentsSize(info); + + /* write the header line */ +#ifndef VOID_SPRINTF + used_size = +#endif + sprintf(buf, "/* XPM */\nstatic char * image_name[] = {\n"); +#ifdef VOID_SPRINTF + used_size = strlen(buf); +#endif + ptr_size = used_size + ext_size + cmt_size + 1; + ptr = (char *) XpmMalloc(ptr_size); + if (!ptr) + return XpmNoMemory; + strcpy(ptr, buf); + + /* write the values line */ + if (cmts && info->hints_cmt) { +#ifndef VOID_SPRINTF + used_size += +#endif + sprintf(ptr + used_size, "/*%s*/\n", info->hints_cmt); +#ifdef VOID_SPRINTF + used_size += strlen(info->hints_cmt) + 5; +#endif + } +#ifndef VOID_SPRINTF + l = +#endif + sprintf(buf, "\"%d %d %d %d", image->width, image->height, + image->ncolors, image->cpp); +#ifdef VOID_SPRINTF + l = strlen(buf); +#endif + + if (info && (info->valuemask & XpmHotspot)) { +#ifndef VOID_SPRINTF + l += +#endif + sprintf(buf + l, " %d %d", info->x_hotspot, info->y_hotspot); +#ifdef VOID_SPRINTF + l = strlen(buf); +#endif + } + if (extensions) { +#ifndef VOID_SPRINTF + l += +#endif + sprintf(buf + l, " XPMEXT"); +#ifdef VOID_SPRINTF + l = strlen(buf); +#endif + } +#ifndef VOID_SPRINTF + l += +#endif + sprintf(buf + l, "\",\n"); +#ifdef VOID_SPRINTF + l = strlen(buf); +#endif + ptr_size += l; + p = (char *) XpmRealloc(ptr, ptr_size); + if (!p) + RETURN(XpmNoMemory); + ptr = p; + strcpy(ptr + used_size, buf); + used_size += l; + + /* write colors */ + if (cmts && info->colors_cmt) { +#ifndef VOID_SPRINTF + used_size += +#endif + sprintf(ptr + used_size, "/*%s*/\n", info->colors_cmt); +#ifdef VOID_SPRINTF + used_size += strlen(info->colors_cmt) + 5; +#endif + } + ErrorStatus = WriteColors(&ptr, &ptr_size, &used_size, + image->colorTable, image->ncolors, image->cpp); + + if (ErrorStatus != XpmSuccess) + RETURN(ErrorStatus); + + /* + * now we know the exact size we need, realloc the data + * 4 = 1 (for '"') + 3 (for '",\n') + * 1 = - 2 (because the last line does not end with ',\n') + 3 (for '};\n') + */ + ptr_size += image->height * (image->width * image->cpp + 4) + 1; + + p = (char *) XpmRealloc(ptr, ptr_size); + if (!p) + RETURN(XpmNoMemory); + ptr = p; + + /* print pixels */ + if (cmts && info->pixels_cmt) { +#ifndef VOID_SPRINTF + used_size += +#endif + sprintf(ptr + used_size, "/*%s*/\n", info->pixels_cmt); +#ifdef VOID_SPRINTF + used_size += strlen(info->pixels_cmt) + 5; +#endif + } + WritePixels(ptr + used_size, &used_size, image->width, image->height, + image->cpp, image->data, image->colorTable); + + /* print extensions */ + if (extensions) + WriteExtensions(ptr + used_size, &used_size, + info->extensions, info->nextensions); + + /* close the array */ + strcpy(ptr + used_size, "};\n"); + + *buffer_return = ptr; + + return (XpmSuccess); + +/* exit point in case of error, free only locally allocated variables */ +error: + if (ptr) + XpmFree(ptr); + return (ErrorStatus); +} + +static int +WriteColors(dataptr, data_size, used_size, colors, ncolors, cpp) + char **dataptr; + unsigned int *data_size; + unsigned int *used_size; + XpmColor *colors; + unsigned int ncolors; + unsigned int cpp; +{ + char buf[BUFSIZ]; + unsigned int a, key, l; + char *s, *s2; + char **defaults; + + *buf = '"'; + for (a = 0; a < ncolors; a++, colors++) { + + defaults = (char **) colors; + s = buf + 1; + strncpy(s, *defaults++, cpp); + s += cpp; + + for (key = 1; key <= NKEYS; key++, defaults++) { + if ((s2 = *defaults)) { +#ifndef VOID_SPRINTF + s += +#endif + sprintf(s, "\t%s %s", xpmColorKeys[key - 1], s2); +#ifdef VOID_SPRINTF + s += strlen(s); +#endif + } + } + strcpy(s, "\",\n"); + l = s + 3 - buf; + s = (char *) XpmRealloc(*dataptr, *data_size + l); + if (!s) + return (XpmNoMemory); + *data_size += l; + strcpy(s + *used_size, buf); + *used_size += l; + *dataptr = s; + } + return (XpmSuccess); +} + +static void +WritePixels(dataptr, used_size, width, height, cpp, pixels, colors) + char *dataptr; + unsigned int *used_size; + unsigned int width; + unsigned int height; + unsigned int cpp; + unsigned int *pixels; + XpmColor *colors; +{ + char *s = dataptr; + unsigned int x, y, h; + + h = height - 1; + for (y = 0; y < h; y++) { + *s++ = '"'; + for (x = 0; x < width; x++, pixels++) { + strncpy(s, colors[*pixels].string, cpp); + s += cpp; + } + strcpy(s, "\",\n"); + s += 3; + } + /* duplicate some code to avoid a test in the loop */ + *s++ = '"'; + for (x = 0; x < width; x++, pixels++) { + strncpy(s, colors[*pixels].string, cpp); + s += cpp; + } + *s++ = '"'; + *used_size += s - dataptr; +} + +static int +ExtensionsSize(ext, num) + XpmExtension *ext; + unsigned int num; +{ + unsigned int x, y, a, size; + char **line; + + size = 0; + for (x = 0; x < num; x++, ext++) { + /* 11 = 10 (for ',\n"XPMEXT ') + 1 (for '"') */ + size += strlen(ext->name) + 11; + a = ext->nlines; + for (y = 0, line = ext->lines; y < a; y++, line++) + /* 4 = 3 (for ',\n"') + 1 (for '"') */ + size += strlen(*line) + 4; + } + /* 13 is for ',\n"XPMENDEXT"' */ + return size + 13; +} + +static void +WriteExtensions(dataptr, used_size, ext, num) + char *dataptr; + unsigned int *used_size; + XpmExtension *ext; + unsigned int num; +{ + unsigned int x, y, a; + char **line; + char *s = dataptr; + + for (x = 0; x < num; x++, ext++) { +#ifndef VOID_SPRINTF + s += +#endif + sprintf(s, ",\n\"XPMEXT %s\"", ext->name); +#ifdef VOID_SPRINTF + s += strlen(ext->name) + 11; +#endif + a = ext->nlines; + for (y = 0, line = ext->lines; y < a; y++, line++) { +#ifndef VOID_SPRINTF + s += +#endif + sprintf(s, ",\n\"%s\"", *line); +#ifdef VOID_SPRINTF + s += strlen(*line) + 4; +#endif + } + } + strcpy(s, ",\n\"XPMENDEXT\""); + *used_size += s - dataptr + 13; +} + +static int +CommentsSize(info) + XpmInfo *info; +{ + int size = 0; + + /* 5 = 2 (for "/_*") + 3 (for "*_/\n") */ + if (info->hints_cmt) + size += 5 + strlen(info->hints_cmt); + + if (info->colors_cmt) + size += 5 + strlen(info->colors_cmt); + + if (info->pixels_cmt) + size += 5 + strlen(info->pixels_cmt); + + return size; +} |