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ext/exif: Minor refactoring of exif_thumbnail() #16111

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merged 2 commits into from
Sep 29, 2024
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@Girgias Girgias commented Sep 28, 2024

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ext/exif/exif.c Outdated
ZVAL_STRINGL(return_value, ImageInfo.Thumbnail.data, ImageInfo.Thumbnail.size);
if (arg_c >= 3) {
RETVAL_STRINGL(ImageInfo.Thumbnail.data, ImageInfo.Thumbnail.size);
if (z_height) {
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Fun fact: this means that if you pass a $width argument but not the $height argument, that the $width isn't even filled in.

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Right, I hadn't even realised this.

This is pretty suboptimal :|

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Okay, made some changes so that one can just pass $width

@Girgias Girgias changed the title ext/exif: Minor refactoring of exif_read_data() ext/exif: Minor refactoring of exif_thumbnail() Sep 28, 2024
ext/exif/exif.c Outdated
}
if (z_height) {
if (!ImageInfo.Thumbnail.height) {
if (!exif_scan_thumbnail(&ImageInfo)) {
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Now you'll be scanning twice in case of a zero height.
I also don't like the duplication.
I'd just do (untested):

if ((z_width || z_height) && (!ImageInfo.Thumbnail.width || !ImageInfo.Thumbnail.height)) {
			if (!exif_scan_thumbnail(&ImageInfo)) {
				ImageInfo.Thumbnail.width = ImageInfo.Thumbnail.height = 0;
			}
}

ext/exif/exif.c Outdated
ZEND_TRY_ASSIGN_REF_LONG(z_height, ImageInfo.Thumbnail.height);
}
if (arg_c >= 4) {
if (z_imagetype) {
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bizarre indentation of the {

@Girgias Girgias merged commit 291eef2 into php:master Sep 29, 2024
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@Girgias Girgias deleted the exif-argnum branch September 29, 2024 14:57
jorgsowa pushed a commit to jorgsowa/php-src that referenced this pull request Oct 1, 2024
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2 participants