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Fix segfault and check for truecolor image in ImageColorAt

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@- Fix segfault and check for truecolor image in ImageColorAt (Rasmus)
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Rasmus Lerdorf
2001-09-27 07:36:34 +00:00
parent be52d66f4b
commit c8280238de
1 changed files with 8 additions and 1 deletions
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ext/gd/gd.c
+8 -1
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@@ -1577,10 +1577,17 @@ PHP_FUNCTION(imagecolorat)
ZEND_FETCH_RESOURCE(im, gdImagePtr, IM, -1, "Image", le_gd);
#if HAVE_LIBGD20
if(im->truecolor) {
php_error(E_WARNING, "ImageColorAt does not work on TrueColor images");
RETURN_FALSE;
}
#endif
convert_to_long_ex(x);
convert_to_long_ex(y);
if (gdImageBoundsSafe(im, Z_LVAL_PP(x), Z_LVAL_PP(y))) {
if (im->pixels && gdImageBoundsSafe(im, Z_LVAL_PP(x), Z_LVAL_PP(y))) {
#if HAVE_LIBGD13
RETURN_LONG(im->pixels[Z_LVAL_PP(y)][Z_LVAL_PP(x)]);
#else