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|
/*
+----------------------------------------------------------------------+
| PHP Version 7 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2018 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Marcus Boerger <helly@php.net> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#include <stdio.h>
#include <math.h>
#include <string.h>
#include <stdlib.h>
#include "gd.h"
#include "gdhelpers.h"
#include "gd_errors.h"
#include "php.h"
#define MAX_XBM_LINE_SIZE 255
/* {{{ gdImagePtr gdImageCreateFromXbm */
gdImagePtr gdImageCreateFromXbm(FILE * fd)
{
char fline[MAX_XBM_LINE_SIZE];
char iname[MAX_XBM_LINE_SIZE];
char *type;
int value;
unsigned int width = 0, height = 0;
int fail = 0;
int max_bit = 0;
gdImagePtr im;
int bytes = 0, i;
int bit, x = 0, y = 0;
int ch;
char h[8];
unsigned int b;
rewind(fd);
while (fgets(fline, MAX_XBM_LINE_SIZE, fd)) {
fline[MAX_XBM_LINE_SIZE-1] = '\0';
if (strlen(fline) == MAX_XBM_LINE_SIZE-1) {
return 0;
}
if (sscanf(fline, "#define %s %d", iname, &value) == 2) {
if (!(type = strrchr(iname, '_'))) {
type = iname;
} else {
type++;
}
if (!strcmp("width", type)) {
width = (unsigned int) value;
}
if (!strcmp("height", type)) {
height = (unsigned int) value;
}
} else {
if ( sscanf(fline, "static unsigned char %s = {", iname) == 1
|| sscanf(fline, "static char %s = {", iname) == 1)
{
max_bit = 128;
} else if (sscanf(fline, "static unsigned short %s = {", iname) == 1
|| sscanf(fline, "static short %s = {", iname) == 1)
{
max_bit = 32768;
}
if (max_bit) {
bytes = (width + 7) / 8 * height;
if (!bytes) {
return 0;
}
if (!(type = strrchr(iname, '_'))) {
type = iname;
} else {
type++;
}
if (!strcmp("bits[]", type)) {
break;
}
}
}
}
if (!bytes || !max_bit) {
return 0;
}
if(!(im = gdImageCreate(width, height))) {
return 0;
}
gdImageColorAllocate(im, 255, 255, 255);
gdImageColorAllocate(im, 0, 0, 0);
h[2] = '\0';
h[4] = '\0';
for (i = 0; i < bytes; i++) {
while (1) {
if ((ch=getc(fd)) == EOF) {
fail = 1;
break;
}
if (ch == 'x') {
break;
}
}
if (fail) {
break;
}
/* Get hex value */
if ((ch=getc(fd)) == EOF) {
break;
}
h[0] = ch;
if ((ch=getc(fd)) == EOF) {
break;
}
h[1] = ch;
if (max_bit == 32768) {
if ((ch=getc(fd)) == EOF) {
break;
}
h[2] = ch;
if ((ch=getc(fd)) == EOF) {
break;
}
h[3] = ch;
}
sscanf(h, "%x", &b);
for (bit = 1; bit <= max_bit; bit = bit << 1) {
gdImageSetPixel(im, x++, y, (b & bit) ? 1 : 0);
if (x == im->sx) {
x = 0;
y++;
if (y == im->sy) {
return im;
}
break;
}
}
}
gd_error("EOF before image was complete");
gdImageDestroy(im);
return 0;
}
/* }}} */
/* {{{ gdCtxPrintf */
void gdCtxPrintf(gdIOCtx * out, const char *format, ...)
{
char *buf;
int len;
va_list args;
va_start(args, format);
len = vspprintf(&buf, 0, format, args);
va_end(args);
out->putBuf(out, buf, len);
efree(buf);
}
/* }}} */
/* {{{ gdImageXbmCtx */
void gdImageXbmCtx(gdImagePtr image, char* file_name, int fg, gdIOCtx * out)
{
int x, y, c, b, sx, sy, p;
char *name, *f;
size_t i, l;
name = file_name;
if ((f = strrchr(name, '/')) != NULL) name = f+1;
if ((f = strrchr(name, '\\')) != NULL) name = f+1;
name = estrdup(name);
if ((f = strrchr(name, '.')) != NULL && !strcasecmp(f, ".XBM")) *f = '\0';
if ((l = strlen(name)) == 0) {
efree(name);
name = estrdup("image");
} else {
for (i=0; i<l; i++) {
/* only in C-locale isalnum() would work */
if (!isupper(name[i]) && !islower(name[i]) && !isdigit(name[i])) {
name[i] = '_';
}
}
}
gdCtxPrintf(out, "#define %s_width %d\n", name, gdImageSX(image));
gdCtxPrintf(out, "#define %s_height %d\n", name, gdImageSY(image));
gdCtxPrintf(out, "static unsigned char %s_bits[] = {\n ", name);
efree(name);
b = 1;
p = 0;
c = 0;
sx = gdImageSX(image);
sy = gdImageSY(image);
for (y = 0; y < sy; y++) {
for (x = 0; x < sx; x++) {
if (gdImageGetPixel(image, x, y) == fg) {
c |= b;
}
if ((b == 128) || (x == sx - 1)) {
b = 1;
if (p) {
gdCtxPrintf(out, ", ");
if (!(p%12)) {
gdCtxPrintf(out, "\n ");
p = 12;
}
}
p++;
gdCtxPrintf(out, "0x%02X", c);
c = 0;
} else {
b <<= 1;
}
}
}
gdCtxPrintf(out, "};\n");
}
/* }}} */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: sw=4 ts=4 fdm=marker
* vim<600: sw=4 ts=4
*/
|
