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Diffstat (limited to 'ext/gd/libgd/gd_png.c')
| -rw-r--r-- | ext/gd/libgd/gd_png.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/ext/gd/libgd/gd_png.c b/ext/gd/libgd/gd_png.c index 52a087e78..49f7cb077 100644 --- a/ext/gd/libgd/gd_png.c +++ b/ext/gd/libgd/gd_png.c @@ -515,6 +515,10 @@ void gdImagePngCtxEx (gdImagePtr im, gdIOCtx * outfile, int level, int basefilte /* png_set_filter(png_ptr, 0, PNG_FILTER_NONE); */ /* 2.0.12: this is finally a parameter */ + if (level != -1 && (level < 0 || level > 9)) { + php_gd_error("gd-png error: compression level must be 0 through 9"); + return; + } png_set_compression_level(png_ptr, level); if (basefilter >= 0) { png_set_filter(png_ptr, PNG_FILTER_TYPE_BASE, basefilter); |