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Source View: wp_calculate_image_srcset_meta

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Line Code
1016 function wp_calculate_image_srcset( $size_array, $image_src, $image_meta, $attachment_id = 0 ) {
1017      /**
1018       * Let plugins pre-filter the image meta to be able to fix inconsistencies in the stored data.
1019       *
1020       * @param array  $image_meta    The image meta data as returned by 'wp_get_attachment_metadata()'.
1021       * @param array  $size_array    Array of width and height values in pixels (in that order).
1022       * @param string $image_src     The 'src' of the image.
1023       * @param int    $attachment_id The image attachment ID or 0 if not supplied.
1024       */
1025      $image_meta = apply_filters( 'wp_calculate_image_srcset_meta', $image_meta, $size_array, $image_src, $attachment_id );
1026
1027      if ( empty( $image_meta['sizes'] ) || ! isset( $image_meta['file'] ) || strlen( $image_meta['file'] ) < 4 ) {
1028           return false;
1029      }
1030
1031      $image_sizes = $image_meta['sizes'];
1032
1033      // Get the width and height of the image.
1034      $image_width = (int) $size_array[0];