diff options
Diffstat (limited to 'libX11/src/RdBitF.c')
| -rw-r--r-- | libX11/src/RdBitF.c | 524 |
1 files changed, 262 insertions, 262 deletions
diff --git a/libX11/src/RdBitF.c b/libX11/src/RdBitF.c index 6b920c609..afdaee7fc 100644 --- a/libX11/src/RdBitF.c +++ b/libX11/src/RdBitF.c @@ -1,262 +1,262 @@ -/*
-
-Copyright 1987, 1998 The Open Group
-
-Permission to use, copy, modify, distribute, and sell this software and its
-documentation for any purpose is hereby granted without fee, provided that
-the above copyright notice appear in all copies and that both that
-copyright notice and this permission notice appear in supporting
-documentation.
-
-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 THE OPEN GROUP 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 The Open Group shall
-not be used in advertising or otherwise to promote the sale, use or
-other dealings in this Software without prior written authorization
-from The Open Group.
-
-*/
-
-/*
- * Code to read bitmaps from disk files. Interprets
- * data from X10 and X11 bitmap files and creates
- * Pixmap representations of files. Returns Pixmap
- * ID and specifics about image.
- *
- * Modified for speedup by Jim Becker, changed image
- * data parsing logic (removed some fscanf()s).
- * Aug 5, 1988
- *
- * Note that this file and ../Xmu/RdBitF.c look very similar.... Keep them
- * that way (but don't use common source code so that people can have one
- * without the other).
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include "Xlibint.h"
-#include <X11/Xos.h>
-#include "Xutil.h"
-#include <stdio.h>
-#include <ctype.h>
-
-
-#define MAX_SIZE 255
-
-/* shared data for the image read/parse logic */
-static const signed char hexTable[256] = {
- 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, -1, 0, 0, 0, 0, 0
- , 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
- ,-1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, 0, 0, 0
- , 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0
- , 0, 10, 11, 12, 13, 14, 15, 0, 0, 0, 0, 0, 0, 0, 0, 0
- , 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
- , 0, 10, 11, 12, 13, 14, 15, 0, 0, 0, 0, 0, 0, 0, 0, 0
- , 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, 0, 0
- , 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
- , 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
- , 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
- , 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
- , 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
- , 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
- , 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
- , 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
-};
-
-/*
- * read next hex value in the input stream, return -1 if EOF
- */
-static int
-NextInt (
- FILE *fstream)
-{
- int ch;
- int value = 0;
- int gotone = 0;
- int done = 0;
-
- /* loop, accumulate hex value until find delimiter */
- /* skip any initial delimiters found in read stream */
-
- while (!done) {
- ch = getc(fstream);
- if (ch == EOF) {
- value = -1;
- done++;
- } else {
- /* trim high bits, check type and accumulate */
- ch &= 0xff;
- if (isascii(ch) && isxdigit(ch)) {
- value = (value << 4) + hexTable[ch];
- gotone++;
- } else if ((hexTable[ch]) < 0 && gotone)
- done++;
- }
- }
- return value;
-}
-
-int
-XReadBitmapFileData (
- _Xconst char *filename,
- unsigned int *width, /* RETURNED */
- unsigned int *height, /* RETURNED */
- unsigned char **data, /* RETURNED */
- int *x_hot, /* RETURNED */
- int *y_hot) /* RETURNED */
-{
- FILE *fstream; /* handle on file */
- unsigned char *bits = NULL; /* working variable */
- char line[MAX_SIZE]; /* input line from file */
- int size; /* number of bytes of data */
- char name_and_type[MAX_SIZE]; /* an input line */
- char *type; /* for parsing */
- int value; /* from an input line */
- int version10p; /* boolean, old format */
- int padding; /* to handle alignment */
- int bytes_per_line; /* per scanline of data */
- unsigned int ww = 0; /* width */
- unsigned int hh = 0; /* height */
- int hx = -1; /* x hotspot */
- int hy = -1; /* y hotspot */
-
-#ifdef __UNIXOS2__
- filename = __XOS2RedirRoot(filename);
-#endif
- if (!(fstream = fopen(filename, "r")))
- return BitmapOpenFailed;
-
- /* error cleanup and return macro */
-#define RETURN(code) \
-{ if (bits) Xfree ((char *)bits); fclose (fstream); return code; }
-
- while (fgets(line, MAX_SIZE, fstream)) {
- if (strlen(line) == MAX_SIZE-1)
- RETURN (BitmapFileInvalid);
- if (sscanf(line,"#define %s %d",name_and_type,&value) == 2) {
- if (!(type = strrchr(name_and_type, '_')))
- type = name_and_type;
- else
- type++;
-
- if (!strcmp("width", type))
- ww = (unsigned int) value;
- if (!strcmp("height", type))
- hh = (unsigned int) value;
- if (!strcmp("hot", type)) {
- if (type-- == name_and_type || type-- == name_and_type)
- continue;
- if (!strcmp("x_hot", type))
- hx = value;
- if (!strcmp("y_hot", type))
- hy = value;
- }
- continue;
- }
-
- if (sscanf(line, "static short %s = {", name_and_type) == 1)
- version10p = 1;
- else if (sscanf(line,"static unsigned char %s = {",name_and_type) == 1)
- version10p = 0;
- else if (sscanf(line, "static char %s = {", name_and_type) == 1)
- version10p = 0;
- else
- continue;
-
- if (!(type = strrchr(name_and_type, '_')))
- type = name_and_type;
- else
- type++;
-
- if (strcmp("bits[]", type))
- continue;
-
- if (!ww || !hh)
- RETURN (BitmapFileInvalid);
-
- if ((ww % 16) && ((ww % 16) < 9) && version10p)
- padding = 1;
- else
- padding = 0;
-
- bytes_per_line = (ww+7)/8 + padding;
-
- size = bytes_per_line * hh;
- bits = (unsigned char *) Xmalloc ((unsigned int) size);
- if (!bits)
- RETURN (BitmapNoMemory);
-
- if (version10p) {
- unsigned char *ptr;
- int bytes;
-
- for (bytes=0, ptr=bits; bytes<size; (bytes += 2)) {
- if ((value = NextInt(fstream)) < 0)
- RETURN (BitmapFileInvalid);
- *(ptr++) = value;
- if (!padding || ((bytes+2) % bytes_per_line))
- *(ptr++) = value >> 8;
- }
- } else {
- unsigned char *ptr;
- int bytes;
-
- for (bytes=0, ptr=bits; bytes<size; bytes++, ptr++) {
- if ((value = NextInt(fstream)) < 0)
- RETURN (BitmapFileInvalid);
- *ptr=value;
- }
- }
-
- /* If we got to this point, we read a full bitmap file. Break so we don't
- * start reading another one from the same file and leak the memory
- * allocated for the previous one. */
- break;
- } /* end while */
-
- fclose(fstream);
- if (!bits)
- return (BitmapFileInvalid);
-
- *data = bits;
- *width = ww;
- *height = hh;
- if (x_hot) *x_hot = hx;
- if (y_hot) *y_hot = hy;
-
- return (BitmapSuccess);
-}
-
-int
-XReadBitmapFile (
- Display *display,
- Drawable d,
- _Xconst char *filename,
- unsigned int *width, /* RETURNED */
- unsigned int *height, /* RETURNED */
- Pixmap *pixmap, /* RETURNED */
- int *x_hot, /* RETURNED */
- int *y_hot) /* RETURNED */
-{
- unsigned char *data;
- int res;
-
- res = XReadBitmapFileData(filename, width, height, &data, x_hot, y_hot);
- if (res != BitmapSuccess)
- return res;
- *pixmap = XCreateBitmapFromData(display, d, (char *)data, *width, *height);
- Xfree((char *)data);
- if (*pixmap == None)
- return (BitmapNoMemory);
- return (BitmapSuccess);
-}
+/* + +Copyright 1987, 1998 The Open Group + +Permission to use, copy, modify, distribute, and sell this software and its +documentation for any purpose is hereby granted without fee, provided that +the above copyright notice appear in all copies and that both that +copyright notice and this permission notice appear in supporting +documentation. + +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 THE OPEN GROUP 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 The Open Group shall +not be used in advertising or otherwise to promote the sale, use or +other dealings in this Software without prior written authorization +from The Open Group. + +*/ + +/* + * Code to read bitmaps from disk files. Interprets + * data from X10 and X11 bitmap files and creates + * Pixmap representations of files. Returns Pixmap + * ID and specifics about image. + * + * Modified for speedup by Jim Becker, changed image + * data parsing logic (removed some fscanf()s). + * Aug 5, 1988 + * + * Note that this file and ../Xmu/RdBitF.c look very similar.... Keep them + * that way (but don't use common source code so that people can have one + * without the other). + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif +#include "Xlibint.h" +#include <X11/Xos.h> +#include "Xutil.h" +#include <stdio.h> +#include <ctype.h> + + +#define MAX_SIZE 255 + +/* shared data for the image read/parse logic */ +static const signed char hexTable[256] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, -1, 0, 0, 0, 0, 0 + , 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + ,-1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, 0, 0, 0 + , 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0 + , 0, 10, 11, 12, 13, 14, 15, 0, 0, 0, 0, 0, 0, 0, 0, 0 + , 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + , 0, 10, 11, 12, 13, 14, 15, 0, 0, 0, 0, 0, 0, 0, 0, 0 + , 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, 0, 0 + , 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + , 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + , 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + , 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + , 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + , 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + , 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + , 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 +}; + +/* + * read next hex value in the input stream, return -1 if EOF + */ +static int +NextInt ( + FILE *fstream) +{ + int ch; + int value = 0; + int gotone = 0; + int done = 0; + + /* loop, accumulate hex value until find delimiter */ + /* skip any initial delimiters found in read stream */ + + while (!done) { + ch = getc(fstream); + if (ch == EOF) { + value = -1; + done++; + } else { + /* trim high bits, check type and accumulate */ + ch &= 0xff; + if (isascii(ch) && isxdigit(ch)) { + value = (value << 4) + hexTable[ch]; + gotone++; + } else if ((hexTable[ch]) < 0 && gotone) + done++; + } + } + return value; +} + +int +XReadBitmapFileData ( + _Xconst char *filename, + unsigned int *width, /* RETURNED */ + unsigned int *height, /* RETURNED */ + unsigned char **data, /* RETURNED */ + int *x_hot, /* RETURNED */ + int *y_hot) /* RETURNED */ +{ + FILE *fstream; /* handle on file */ + unsigned char *bits = NULL; /* working variable */ + char line[MAX_SIZE]; /* input line from file */ + int size; /* number of bytes of data */ + char name_and_type[MAX_SIZE]; /* an input line */ + char *type; /* for parsing */ + int value; /* from an input line */ + int version10p; /* boolean, old format */ + int padding; /* to handle alignment */ + int bytes_per_line; /* per scanline of data */ + unsigned int ww = 0; /* width */ + unsigned int hh = 0; /* height */ + int hx = -1; /* x hotspot */ + int hy = -1; /* y hotspot */ + +#ifdef __UNIXOS2__ + filename = __XOS2RedirRoot(filename); +#endif + if (!(fstream = fopen(filename, "r"))) + return BitmapOpenFailed; + + /* error cleanup and return macro */ +#define RETURN(code) \ +{ if (bits) Xfree ((char *)bits); fclose (fstream); return code; } + + while (fgets(line, MAX_SIZE, fstream)) { + if (strlen(line) == MAX_SIZE-1) + RETURN (BitmapFileInvalid); + if (sscanf(line,"#define %s %d",name_and_type,&value) == 2) { + if (!(type = strrchr(name_and_type, '_'))) + type = name_and_type; + else + type++; + + if (!strcmp("width", type)) + ww = (unsigned int) value; + if (!strcmp("height", type)) + hh = (unsigned int) value; + if (!strcmp("hot", type)) { + if (type-- == name_and_type || type-- == name_and_type) + continue; + if (!strcmp("x_hot", type)) + hx = value; + if (!strcmp("y_hot", type)) + hy = value; + } + continue; + } + + if (sscanf(line, "static short %s = {", name_and_type) == 1) + version10p = 1; + else if (sscanf(line,"static unsigned char %s = {",name_and_type) == 1) + version10p = 0; + else if (sscanf(line, "static char %s = {", name_and_type) == 1) + version10p = 0; + else + continue; + + if (!(type = strrchr(name_and_type, '_'))) + type = name_and_type; + else + type++; + + if (strcmp("bits[]", type)) + continue; + + if (!ww || !hh) + RETURN (BitmapFileInvalid); + + if ((ww % 16) && ((ww % 16) < 9) && version10p) + padding = 1; + else + padding = 0; + + bytes_per_line = (ww+7)/8 + padding; + + size = bytes_per_line * hh; + bits = (unsigned char *) Xmalloc ((unsigned int) size); + if (!bits) + RETURN (BitmapNoMemory); + + if (version10p) { + unsigned char *ptr; + int bytes; + + for (bytes=0, ptr=bits; bytes<size; (bytes += 2)) { + if ((value = NextInt(fstream)) < 0) + RETURN (BitmapFileInvalid); + *(ptr++) = value; + if (!padding || ((bytes+2) % bytes_per_line)) + *(ptr++) = value >> 8; + } + } else { + unsigned char *ptr; + int bytes; + + for (bytes=0, ptr=bits; bytes<size; bytes++, ptr++) { + if ((value = NextInt(fstream)) < 0) + RETURN (BitmapFileInvalid); + *ptr=value; + } + } + + /* If we got to this point, we read a full bitmap file. Break so we don't + * start reading another one from the same file and leak the memory + * allocated for the previous one. */ + break; + } /* end while */ + + fclose(fstream); + if (!bits) + return (BitmapFileInvalid); + + *data = bits; + *width = ww; + *height = hh; + if (x_hot) *x_hot = hx; + if (y_hot) *y_hot = hy; + + return (BitmapSuccess); +} + +int +XReadBitmapFile ( + Display *display, + Drawable d, + _Xconst char *filename, + unsigned int *width, /* RETURNED */ + unsigned int *height, /* RETURNED */ + Pixmap *pixmap, /* RETURNED */ + int *x_hot, /* RETURNED */ + int *y_hot) /* RETURNED */ +{ + unsigned char *data; + int res; + + res = XReadBitmapFileData(filename, width, height, &data, x_hot, y_hot); + if (res != BitmapSuccess) + return res; + *pixmap = XCreateBitmapFromData(display, d, (char *)data, *width, *height); + Xfree((char *)data); + if (*pixmap == None) + return (BitmapNoMemory); + return (BitmapSuccess); +} |